Solved papers for RAJASTHAN PMT Rajasthan - PMT Solved Paper-1995

done Rajasthan - PMT Solved Paper-1995 Total Questions - 400

• question_answer1) In an adiabatic process relation of relative change in pressure \[\frac{\Delta P}{P}\]with relative change m volume\[\frac{\Delta P}{V}\] is:
  A)
  \[\frac{1}{\gamma }\left( \frac{\Delta V}{V} \right)\]                     
  done clear
  B)
  \[\frac{1}{{{\gamma }^{2}}}\left( \frac{\Delta V}{V} \right)\]      
  done clear
  C)
  \[-\gamma \left( \frac{\Delta V}{V} \right)\]      
  done clear
  D)
         \[\gamma \left( \frac{\Delta V}{V} \right)\]
  done clear
  View Answer play_arrow

• question_answer2) There is a rough black spot on a polished surface. It is heated to a temperature \[1400{}^\circ C\] then:
  A)
  black spot will be seen more bright
  done clear
  B)
  spot and plate will be seen with equal brightness
  done clear
  C)
  neither spot nor plate will be seen bright
  done clear
  D)
  polished surface will be seen more bright
  done clear
  View Answer play_arrow

• question_answer3) A body cool from \[{{80}^{o}}C\]to \[{{70}^{o}}C\] in 6 minutes. Then in cooling from \[{{70}^{o}}C\] to \[{{60}^{o}}C\], time taken will be:
  A)
   less than 6 minutes       
  done clear
  B)
   6 minutes
  done clear
  C)
   mere than 6 minutes    
  done clear
  D)
   zero
  done clear
  View Answer play_arrow

• question_answer4) A hammer of mass 1 kg having speed of\[50\text{ }m/s,\] hit a iron nail of mass \[200gm\]. If specific heat of iron is \[0.105cal/g{{m}^{o}}C\]and half the energy is converted into heat, the raise in temperature of nail is:
  A)
   \[{{7.1}^{o}}C\]               
  done clear
  B)
                          \[{{9.2}^{o}}C\]               
  done clear
  C)
          \[{{10.5}^{o}}C\]            
  done clear
  D)
          \[{{12.1}^{o}}C\]
  done clear
  View Answer play_arrow

• question_answer5) Thickness of a glass plate is t and its refractive index is n. Velocity of light in vacuum is c. Then minimum time taken by light in passing through the glass plate is:
  A)
  \[\frac{ct}{n}\]                 
  done clear
  B)
         \[\frac{nt}{c}\] 
  done clear
  C)
  \[nct\]                 
  done clear
  D)
         \[\frac{nc}{t}\]
  done clear
  View Answer play_arrow

• question_answer6) There are some points in stationary wave which:
  A)
   are never at rest
  done clear
  B)
   are always in motion
  done clear
  C)
   are at rest twice in each cycle
  done clear
  D)
   are at rest once in each cycle
  done clear
  View Answer play_arrow

• question_answer7) A closed pipe of length L resonate with a lulling fork. The length of open pipe to resonate with the same tuning fork will be:
  A)
  \[\frac{L}{2}\]                                   
  done clear
  B)
          \[L\]    
  done clear
  C)
         \[\frac{3L}{2}\]                 
  done clear
  D)
                          \[2L\]
  done clear
  View Answer play_arrow

• question_answer8) Length of a piano wire is \[1.1\,m\]and its mass is \[160g\]. If its frequency is \[33Hz\], then tension in wire in newton is:
  A)
  \[556\,N\]          
  done clear
  B)
                         \[~635\,N\]       
  done clear
  C)
          \[766\,N\]         
  done clear
  D)
                          \[995\,N\]
  done clear
  View Answer play_arrow

• question_answer9) Two sound sources \[{{S}_{1}}\] and \[{{S}_{2}}\] of frequencies \[324Hz\]and \[320Hz\] are placed at certain separation. An observer is moving on line joining them. If he hears no beats then speed of observer is: \[(\upsilon =344m/\sec )\]
  A)
   \[20m/s\]        
  done clear
  B)
                         \[10m/s\]           
  done clear
  C)
          \[5m/s\]            
  done clear
  D)
          \[3.1m/s\]
  done clear
  View Answer play_arrow

• question_answer10) A car moving with speed \[28m/s\]sound a horn of frequency\[500Hz\], passes another car moving with a speed of \[13m/s\]in same direction, then frequency of horn heard by driver of another car is (speed of sound is \[342m/s\]):
  A)
   \[480\,Hz\]
  done clear
  B)
                          \[500\,Hz\]       
  done clear
  C)
          \[520\,Hz\]                       
  done clear
  D)
          \[580\,Hz\]
  done clear
  View Answer play_arrow

• question_answer11) Ratio of energies of two photons whose wavelengths are \[6000\overset{\text{o}}{\mathop{\text{A}}}\,\]and \[4000\overset{\text{o}}{\mathop{\text{A}}}\,\] is:
  A)
   \[2:3\]                 
  done clear
  B)
                          \[3:2\]                 
  done clear
  C)
          \[1:5\]                 
  done clear
  D)
                          \[5:1\]
  done clear
  View Answer play_arrow

• question_answer12) Behaviour of zone plate coincides with:
  A)
   prism   
  done clear
  B)
                          grating
  done clear
  C)
   biprism               
  done clear
  D)
          lens
  done clear
  View Answer play_arrow

• question_answer13) Two charges\[4q\]and\[q\] are placed at a distance\[I\] another charge Q is placed at the midpoint of line joining the charges\[4q\]and\[q\] If net force on charge\[q\] is zero, then value of \[Q\] is:
  A)
  \[+q\]                  
  done clear
  B)
         \[-q\]  
  done clear
  C)
  \[+2q\]                
  done clear
  D)
                         \[3q\]
  done clear
  View Answer play_arrow

• question_answer14) Potential on the surface of a hollow sphere is 10 volt. Then potential at its centre will be:
  A)
   \[10\,volt\]                       
  done clear
  B)
          \[5\,volt\]         
  done clear
  C)
          \[25\,volt\]                       
  done clear
  D)
          zero
  done clear
  View Answer play_arrow

• question_answer15) A charge is placed on the axis of a dipole at a distance r from centre then charge experiences a force F. If distance from the centre is doubled then new value of force will be:
  A)
   zero     
  done clear
  B)
                          \[\frac{1}{2}\]                  
  done clear
  C)
  \[\frac{F}{4}\]                                                   
  done clear
  D)
  \[\frac{F}{8}\]
  done clear
  View Answer play_arrow

• question_answer16) Ratio of gravitational force and electrostatic force between two electrons is:
  A)
   \[{{10}^{-36}}\]               
  done clear
  B)
                          \[{{10}^{-39}}\]               
  done clear
  C)
          \[{{10}^{-42}}\]
  done clear
  D)
                          \[{{10}^{-47}}\]               
  done clear
  View Answer play_arrow

• question_answer17) In a coil current changes from \[4A\]to \[2A\] in\[0.05\text{ }sec,\] if induced e.m.f. is 8 volt then self-inductance of the coil is:
  A)
   \[0.5H\]              
  done clear
  B)
                          \[0.35H\]           
  done clear
  C)
          \[0.2H\]              
  done clear
  D)
                          \[2mH\]
  done clear
  View Answer play_arrow

• question_answer18) Dimension of a rectangular coil is\[20cm\times 10cm\]. Number of turns in coil is 60. It is rotating in an uniform magnetic field of \[0.5T,\]with a speed 1800 r.p.m. the maximum induced e.m.f. is:
  A)
   \[98\,V\]            
  done clear
  B)
                          \[110\,V\]         
  done clear
  C)
          \[113\,V\]         
  done clear
  D)
                          \[118\,V\]
  done clear
  View Answer play_arrow

• question_answer19) In a stop up transformer ratio of number of turn in primary to secondary coil is \[1:25\]. If input voltage is        \[230\text{ }volt\]and load current is\[2amp\], then current in primary coil is:
  A)
   \[50A\] 
  done clear
  B)
                          \[25A\]               
  done clear
  C)
          \[12.5A\]           
  done clear
  D)
                          \[6.25A\]
  done clear
  View Answer play_arrow

• question_answer20) Value of current in an A.C. circuit is \[I=2\cos \omega t+\theta ),\]then the value of\[{{I}_{rms}}\]is:
  A)
  \[\sqrt{\text{2}}\text{A}\]
  done clear
  B)
                         \[\frac{\text{1}}{\sqrt{\text{2}}}\text{A}\]         
  done clear
  C)
         \[\text{2A}\]     
  done clear
  D)
                         \[\frac{\text{1}}{2}\text{A}\]
  done clear
  View Answer play_arrow

• question_answer21) Impedence of a coil is \[100ohm\]at frequency \[50Hz\], then its impedence on \[150Hz\]is:
  A)
   \[100\,ohm\]                   
  done clear
  B)
          \[300\,ohm\]   
  done clear
  C)
          \[450\,ohm\]   
  done clear
  D)
          \[600\,ohm\]
  done clear
  View Answer play_arrow

• question_answer22) For a paramagnetic substance suspectibility is related with temperature as:
  A)
  \[V\propto T\]          
  done clear
  B)
                         \[X\propto \frac{1}{T}\]               
  done clear
  C)
          \[X\propto \frac{1}{T-T}\]      
  done clear
  D)
          constant
  done clear
  View Answer play_arrow

• question_answer23) Kinetic energy of an electron in hydrogen atom in Bohrs orbit of radius r:
  A)
  \[\frac{KE}{2r}\]                              
  done clear
  B)
         \[\frac{K{{E}^{2}}}{2r}\]
  done clear
  C)
         \[\frac{KE}{r}\]                 
  done clear
  D)
         \[\frac{2KE}{r}\]
  done clear
  View Answer play_arrow

• question_answer24) Wavelength of second line of Lyman series is \[1025\overset{\text{o}}{\mathop{\text{A}}}\,,\] then wavelength of first line is:
  A)
   \[825\overset{\text{o}}{\mathop{\text{A}}}\,\]              
  done clear
  B)
          \[900\overset{\text{o}}{\mathop{\text{A}}}\,\]              
  done clear
  C)
          \[1215\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  D)
          \[1325\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer25) In an atom quantum number in a orbit n, \[l\] and m are same. The maximum number of electrons are:
  A)
   \[2\]          
  done clear
  B)
          \[2{{n}^{2}}\]                   
  done clear
  C)
          \[(2l+1)\]        
  done clear
  D)
                          \[2(2l+1)\]
  done clear
  View Answer play_arrow

• question_answer26) Acceleration voltage in an electron gun is 50000 volt, de-Brogile wavelength of electron will be:
  A)
   \[0.55\overset{\text{o}}{\mathop{\text{A}}}\,\]          
  done clear
  B)
                          \[0.055\overset{\text{o}}{\mathop{\text{A}}}\,\]          
  done clear
  C)
          \[0.077\overset{\text{o}}{\mathop{\text{A}}}\,\]        
  done clear
  D)
                          \[0.095\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer27) Momentum  of  X-ray  photon  of wavelength \[0.01\overset{\text{o}}{\mathop{\text{A}}}\,\]in kg-m/sec is:
  A)
   \[6.6\times {{10}^{-22}}\]    
  done clear
  B)
                          \[6.6\times {{10}^{-32}}\]           
  done clear
  C)
          \[6.6\times {{10}^{-46}}\]           
  done clear
  D)
          \[6.6\times {{10}^{-27}}\]
  done clear
  View Answer play_arrow

• question_answer28) Work function of metal is\[2.4\,eV\]. Then for photo electorons omission,  maximum wavelength of photon will be:
  A)
   \[3000\overset{\text{o}}{\mathop{\text{A}}}\,\]           
  done clear
  B)
          \[3500\overset{\text{o}}{\mathop{\text{A}}}\,\]           
  done clear
  C)
          \[4500\overset{\text{o}}{\mathop{\text{A}}}\,\]           
  done clear
  D)
          \[5000\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer29) Ratio of ionization power of \[\alpha \] and \[\]particles emitted from a radioactive element is;
  A)
   \[1:100\]            
  done clear
  B)
          \[100:1\]            
  done clear
  C)
          \[1000:1\]          
  done clear
  D)
          \[1:1000\]
  done clear
  View Answer play_arrow

• question_answer30) The half-life of radioactive clement is 5 days, then time taken by in decaying \[\frac{\text{7}}{\text{8}}\text{th}\] of its initial amount:
  A)
   \[2.5\,day\]      
  done clear
  B)
          \[5\,day\]          
  done clear
  C)
          \[10\,day\]       
  done clear
  D)
          \[15\,day\]
  done clear
  View Answer play_arrow

• question_answer31) \[_{\text{90}}\text{T}{{\text{h}}^{\text{232}}}\]disintegrate continuously and finally converts into\[_{\text{82}}\text{P}{{\text{b}}^{\text{208}}}\text{,}\]then number of \[\alpha \] and \[\] particles produced are respectively:
  A)
   \[4,6~\]                              
  done clear
  B)
          \[6,4\]  
  done clear
  C)
          \[3,2\]                 
  done clear
  D)
                          \[2,3\]
  done clear
  View Answer play_arrow

• question_answer32) In a diode thermionic emission from cathode will be maximum when cathode has:
  A)
   high work function, low temperature
  done clear
  B)
   high work function, high temperature
  done clear
  C)
   low work function, high temperature
  done clear
  D)
   low work function, low tern temperature
  done clear
  View Answer play_arrow

• question_answer33) For a triode \[\mu =25,Rp=40\,k\Omega \] \[{{R}_{L}}=10\,k\Omega \]and input signal voltage is 0.5 volt. Then output voltage is:
  A)
   \[1.25\,volt\]        
  done clear
  B)
                          \[2.5\,volt\]
  done clear
  C)
   \[5\,volt\]                         
  done clear
  D)
          \[10\,volt\]
  done clear
  View Answer play_arrow

• question_answer34) Which of the following is used as an impurity for p-type semiconductor?
  A)
   Boran                  
  done clear
  B)
          Bismuth             
  done clear
  C)
          Arsenic               
  done clear
  D)
          Phosphorous
  done clear
  View Answer play_arrow

• question_answer35) When a plane mirror is placed horizontally on a level ground at a distance of 60 metre from the foot of a tower. The top of the tower and its image in the mirror subtend at the eye an angle of \[{{90}^{o}}\], the height of the tower is:
  A)
   \[30\,m\]           
  done clear
  B)
                          \[40\,m\]           
  done clear
  C)
          \[60\,m\]           
  done clear
  D)
                          \[90\,m\]
  done clear
  View Answer play_arrow

• question_answer36) Moment of inertia of a fan is\[0.06kg-{{m}^{2}}\]. If its angular speed is increased from 0 to 5 revolution/sec. Then its maximum angular momentum in M.K.S. unit is:
  A)
   \[0.3\,\pi \]
  done clear
  B)
                                          \[0.6\,\pi \]       
  done clear
  C)
         \[\frac{0.03}{\,\pi }\]     
  done clear
  D)
          \[\frac{0.6}{\,\pi }\]
  done clear
  View Answer play_arrow

• question_answer37) A rigid body is rotating with an angular velocity\[\vec{\omega },\] torque acting on it is\[\vec{t}\]and an angular momentum is\[\vec{L}.\] Then relation between\[\vec{t}\] and\[\vec{L}\] is :
  A)
  \[\vec{t}=\vec{\omega }\times \vec{L}\]             
  done clear
  B)
         \[\vec{t}=\vec{L}\frac{d\vec{\omega }}{dt}\]    
  done clear
  C)
  \[\vec{t}=\vec{\omega }\frac{d\vec{L}}{dt}\]    
  done clear
  D)
         \[\vec{t}=\frac{dL}{dt}\]
  done clear
  View Answer play_arrow

• question_answer38) A block slides on inclined plane then velocity at the bottom of plane is v. If a ring roll on same inclined plane then its velocity at the bottom of plane is :
  A)
   \[2\upsilon \]                   
  done clear
  B)
                          \[\upsilon \]    
  done clear
  C)
          \[\frac{\upsilon }{2}\]                  
  done clear
  D)
                          \[\frac{\upsilon }{\sqrt{2}}\]
  done clear
  View Answer play_arrow

• question_answer39) A particle executes S.H.M. with an amplitude 4 cm. The displacement where its energy is half K.E. and half HE. is:
  A)
   \[2\sqrt{2}\]cm
  done clear
  B)
          2 cm     
  done clear
  C)
          \[\sqrt{2}\]cm
  done clear
  D)
          \[\frac{3}{\sqrt{2}}\]cm
  done clear
  View Answer play_arrow

• question_answer40) A body of mass in is taken from earth surface to height equal to earth radius R. Then change in its potential energy is:
  A)
   \[\frac{mgR}{2}\]           
  done clear
  B)
                          \[mgR\]              
  done clear
  C)
          \[2mgR\]           
  done clear
  D)
          \[\frac{mgR}{4}\]
  done clear
  View Answer play_arrow

• question_answer41) A satellite is revolving close to surface of planet of radius R, its time period is T- Time period of satellite for a planet of radius 3R will be:
  A)
  \[\text{3}\sqrt{\text{3}}\text{T}\]          
  done clear
  B)
                         \[\frac{\sqrt{\text{3}}}{2}\text{T}\]        
  done clear
  C)
         \[\frac{1}{3\sqrt{\text{3}}}\text{T}\]     
  done clear
  D)
         \[\frac{1}{2}\text{T}\]
  done clear
  View Answer play_arrow

• question_answer42) A second pendulum is suspended in satellite revolving round the earth a height 2R above earth surface, then its time period in second is:
  A)
   zero                     
  done clear
  B)
          2 sec    
  done clear
  C)
          4 sec                    
  done clear
  D)
          infinite (\[\infty \])
  done clear
  View Answer play_arrow

• question_answer43) A soap bubble is expand from radius 1 cm to 2 cm. If surface tension of soap solution is 0.05 N/m- The work done in joule will be:
  A)
   \[1.5\,\times {{10}^{-4}}\]
  done clear
  B)
   \[1.2\pi \times {{10}^{-4}}\]
  done clear
  C)
   \[0.3\pi \times {{10}^{-4}}\]      
  done clear
  D)
          \[0.6\pi \times {{10}^{-4}}\]
  done clear
  View Answer play_arrow

• question_answer44) The height of liquid rise in a capillary tube will be:
  A)
   maximum at \[{{4}^{o}}C\]
  done clear
  B)
         maximum at \[{{0}^{o}}C\]
  done clear
  C)
          minimum at \[{{4}^{o}}C\]
  done clear
  D)
          minimum at \[{{0}^{o}}C\]
  done clear
  View Answer play_arrow

• question_answer45) Specific heat of gas at constant volume is:
  A)
  \[\frac{R}{(\gamma -1)}\]
  done clear
  B)
         \[\frac{R}{(\gamma +1)}\]                          
  done clear
  C)
         \[\frac{R}{\gamma }\]                                                   
  done clear
  D)
         \[R(\gamma -1)\]
  done clear
  View Answer play_arrow

• question_answer46) A body radiate \[Q\text{ }cat/c{{m}^{2}}\]heat at a temperature\[{{227}^{o}}C\]. The rate of energy radiate at a temperature \[{{727}^{o}}C\]is (in\[cal/c{{m}^{2}}\]):
  A)
   \[2Q\]                                 
  done clear
  B)
                          \[4Q\]                                 
  done clear
  C)
          \[16Q\]               
  done clear
  D)
          \[32Q\]
  done clear
  View Answer play_arrow

• question_answer47) A train of mass \[5\times {{10}^{6}}kg\]is moving with a speed of\[72\text{ }km/hr\]. By applying break it is stopped, then heat produced in kilo calories is:
  A)
   \[1.2\times {{10}^{5}}kcal\]       
  done clear
  B)
          \[2.4\times {{10}^{5}}kcal\]       
  done clear
  C)
                          \[4.8\times {{10}^{5}}kcal\]       
  done clear
  D)
          \[6\times {{10}^{5}}kcal\]
  done clear
  View Answer play_arrow

• question_answer48) Refractive index of air is 1.003. The correct thickness of air column which will have one or more wavelength of yellow light \[(6000\overset{\text{o}}{\mathop{\text{A}}}\,)\] than in the same thickness in vacuum is:
  A)
   \[2mm\]            
  done clear
  B)
          \[2cm\]
  done clear
  C)
          2m                                        
  done clear
  D)
          \[2km\]
  done clear
  View Answer play_arrow

• question_answer49) Length of a sonometer wire is \[l\]and its tension is T. If tension is made half, then its second harmonics is equal to first harmonics. Then the length of wire will be:
  A)
  \[\frac{l}{\sqrt{2}}\] 
  done clear
  B)
                          \[\frac{l}{2}\]                                   
  done clear
  C)
          \[l\]                                      
  done clear
  D)
          \[\frac{3l}{2}\]
  done clear
  View Answer play_arrow

• question_answer50) Two sources of sound of same frequency are situated at a distance 1 metre apart. An observer is moving parallel to line joining them at a distance 10 metre. If distance  between   two  consecutive an tinode is observed to be \[1.1\] metre, then    frequency    of   source   is (\[\upsilon \] = 300 m/sec):
  A)
   \[1000\,Hz\]                     
  done clear
  B)
                          \[3000\,Hz\]                     
  done clear
  C)
          \[3500\,Hz\]                     
  done clear
  D)
          \[4000\,Hz\]
  done clear
  View Answer play_arrow

• question_answer51) Two waves of intensity \[I\]and\[4I\] super impose on each other.  Then  in interference maximum and minimum intensity are respectively:
  A)
   \[3I\]and\[2I\]                
  done clear
  B)
                          \[25I\] and \[9I\]                            
  done clear
  C)
          \[9I\] and \[I\]                 
  done clear
  D)
                          \[5I\] and \[3I\]
  done clear
  View Answer play_arrow

• question_answer52) In Youngs double slit experiment distance between slit is 0.1mm and distance between slit and screen is\[20cm\]. If \[\lambda =5460\,\overset{\text{o}}{\mathop{\text{A}}}\,,\], then fringe width is:
  A)
   \[0.5mm\]                         
  done clear
  B)
                          \[1.1\text{ }mm\]                          
  done clear
  C)
          \[1.5\text{ }mm\]                          
  done clear
  D)
          \[2.2mm\]
  done clear
  View Answer play_arrow

• question_answer53) Five balls \[1,2,3,4,5\]are suspended side by side. The pair of balls \[(1,2),\] \[(1,4)\] and \[(2,5)\] attract each other whereas balls \[(2,3)\] and \[(4,5)\] repel each other. The ball number 1 must be:
  A)
   positively charged         
  done clear
  B)
          negatively charged        
  done clear
  C)
          neutral                               
  done clear
  D)
          conductor
  done clear
  View Answer play_arrow

• question_answer54) A charger\[q\] is placed at the centre of circle of radius r. Then work done by charge Q in completing one round is:
  A)
  \[\frac{Q}{4\pi {{\varepsilon }_{0}}r}\]                  
  done clear
  B)
         \[\frac{Qq}{4\pi {{\varepsilon }_{0}}r}\]                                
  done clear
  C)
                          zero                     
  done clear
  D)
                         \[\frac{2q}{2r}\]
  done clear
  View Answer play_arrow

• question_answer55) Two charge each of value \[-q\] are placed at \[(0\pm \,a)\]. A charge + Q is placed on the y-axis, then:
  A)
   it will execute S.H.M.
  done clear
  B)
          its motion is oscillatory, but not S.H.M.
  done clear
  C)
          it will remain stationary
  done clear
  D)
          will move along x-axis
  done clear
  View Answer play_arrow

• question_answer56) Radius of a current carrying circular coil is R at a distance\[x(x>>R)\] on the axis of circular coil the magnetic field produced B is proportional to:
  A)
  \[B\propto \frac{1}{{{x}^{3/2}}}\]                            
  done clear
  B)
         \[B\propto \frac{1}{{{x}^{2}}}\]                
  done clear
  C)
         \[B\propto \frac{1}{{{x}^{3}}}\]
  done clear
  D)
         \[B\propto \frac{1}{{{x}^{-1/2}}}\]
  done clear
  View Answer play_arrow

• question_answer57) Atomic weight of single charge \[Li\] is \[6.06\,amu\]and its energy is\[400\,eV\]. It enter normally to a uniform magnetic field of \[0.8\] Tesla, then radius of circular path is:
  A)
   \[8.35\,cm\]    
  done clear
  B)
                          \[9.23\,cm\]
  done clear
  C)
          \[10.5\,cm\]                     
  done clear
  D)
                          \[11.25\,cm\]
  done clear
  View Answer play_arrow

• question_answer58) The length of a coil is \[0.3\,m\]and the number of turns is 2000. The area of cross-section of the coil is\[1.2\times {{10}^{-3}}{{m}^{2}}\]. Another coil is 300 turns is wrapped over the above coil. A current of 2A is passed through the solenoid and its direction is changed in\[0.25\,sec\]. Then the e.m.f induced in volt will be:
  A)
   \[7.6\times {{10}^{-2}}\]       
  done clear
  B)
                          \[4.8\times {{10}^{-3}}\]
  done clear
  C)
          \[3.2\times {{10}^{-4}}\]             
  done clear
  D)
                          \[3.2\times {{10}^{-2}}\]
  done clear
  View Answer play_arrow

• question_answer59) Number of turns in primary coil of a transformer is 240. When input voltage is 20 volt, then output voltage is 2.5 volt. The number of turns in secondary coil is :
  A)
   250                       
  done clear
  B)
                          100                       
  done clear
  C)
          10                         
  done clear
  D)
                          30
  done clear
  View Answer play_arrow

• question_answer60) When 4 amp current flows through a motor then power consumed is 20 watt, and resultant potential difference is 220 volt. The applied e.m.f. is :
  A)
   220 volt              
  done clear
  B)
                          225 volt
  done clear
  C)
          240 volt              
  done clear
  D)
                          260 volt
  done clear
  View Answer play_arrow

• question_answer61) For ferromagnetic material:
  A)
   permeability is very high and suspectibility is positive
  done clear
  B)
          permeability is very high and suspectibility is negative
  done clear
  C)
          permeability is very low and suspectibility is positive
  done clear
  D)
          permeability is very low and suspectibility is negative
  done clear
  View Answer play_arrow

• question_answer62) Angular momentum of an electron revolving in \[{{\text{2}}^{\text{nd}}}\] orbit of radius r:
  A)
  \[\frac{h}{2\pi }\]                                            
  done clear
  B)
         \[\frac{h}{\pi }\]              
  done clear
  C)
         \[\frac{h}{\pi r}\]                                            
  done clear
  D)
         \[\frac{h}{2\pi r}\]
  done clear
  View Answer play_arrow

• question_answer63) The ionization energy of hydrogen atom in excited state is:
  A)
   \[13.1eV\]                         
  done clear
  B)
          \[3.4eV\]
  done clear
  C)
          \[1.51eV\]                         
  done clear
  D)
          \[1.9eV\]
  done clear
  View Answer play_arrow

• question_answer64) Minimum wavelength of X-ray? Is \[0.1\,\overset{\text{o}}{\mathop{\text{A}}}\,\], then applied accelerating voltage on the tube is:
  A)
   \[1.25\times {{10}^{3}}volt\]     
  done clear
  B)
          \[1.24\times {{10}^{4}}volt\]     
  done clear
  C)
                          \[1.24\times {{10}^{5}}volt\]     
  done clear
  D)
          \[1.24\times {{10}^{6}}volt\]
  done clear
  View Answer play_arrow

• question_answer65) In X-ray spectra wavelength of \[{{k}_{\alpha }}\] line is \[\lambda ,\]depends upon atomic number of target Z as:
  A)
  \[\lambda \propto {{Z}^{2}}\]                                   
  done clear
  B)
         \[\lambda \propto {{(Z-1)}^{2}}\]                            
  done clear
  C)
         \[\lambda \propto \frac{1}{(Z-1)}\]                        
  done clear
  D)
         \[\lambda \propto \frac{1}{{{(Z-1)}^{2}}}\]
  done clear
  View Answer play_arrow

• question_answer66) Mean mass of an element is 39.1 amu, The masses of its isotopes are 39, 40, 41 amu. If the abundance isotope of 40 amu is 0.012%, then relative abundance of other two is:
  A)
   93.7, 6.233         
  done clear
  B)
          90.237, 8.751    
  done clear
  C)
                          93.073, 6.915    
  done clear
  D)
          91.387, 8.603
  done clear
  View Answer play_arrow

• question_answer67) In triode amplification voltage gain depends on:
  A)
  \[\mu ,RL\]and input voltage
  done clear
  B)
         \[{{R}_{P,}}{{R}_{L}}\]and \[\mu \]         
  done clear
  C)
         \[\mu {{R}_{P,}}\] and input voltage
  done clear
  D)
         \[{{R}_{P,}}\mu \]and\[{{g}_{m}}\]
  done clear
  View Answer play_arrow

• question_answer68) Forbidden energy gap in insulator is of:
  A)
   0 eV                     
  done clear
  B)
                          0.7 eV                 
  done clear
  C)
          1.1 eV                 
  done clear
  D)
                          5 eV
  done clear
  View Answer play_arrow

• question_answer69) For a reverse biase \[\text{p-n}\] junction:
  A)
   p region is positive and the current is due to electrons
  done clear
  B)
          p region is positive and the current is duo to holes
  done clear
  C)
          p region is negative and the current is due to electrons
  done clear
  D)
          p region is negative and the current is due to both electrons and holes
  done clear
  View Answer play_arrow

• question_answer70) In an X-ray tube, electrons are accelerated by a potential difference V, the minimum wavelength of emitted X-rays is:
  A)
  \[\frac{12400}{V}m\]                     
  done clear
  B)
         \[\frac{12400}{V}\overset{0}{\mathop{\text{A}}}\,\]     
  done clear
  C)
         \[\frac{1.24}{V}\overset{0}{\mathop{\text{A}}}\,\]                        
  done clear
  D)
         \[\frac{V}{12400}\overset{0}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer71) Which of the following is best absorbed of X-rays?
  A)
   Berylium                            
  done clear
  B)
          Copper                               
  done clear
  C)
          Gold                                    
  done clear
  D)
          Lead
  done clear
  View Answer play_arrow

• question_answer72) In electromagnet core is made of soft iron because:
  A)
   its suspectibility and permeability are high
  done clear
  B)
          suspectibility is high and permeability is low
  done clear
  C)
          both suspectibility and permeability are low
  done clear
  D)
          suspectibility is low and permeability are high
  done clear
  View Answer play_arrow

• question_answer73) Two -spheres (A and B) each of mass 5 kg are connected by a light rod of length 1 m. Treating spheres as point. The ratio of moment of inertias about X axis perpendicular to length of rod and passing through centre of A and centre of rod is:
  A)
   1 : 1                      
  done clear
  B)
                          4 : 1      
  done clear
  C)
          1 : 2                      
  done clear
  D)
                          2 : 1
  done clear
  View Answer play_arrow

• question_answer74) The moment of inertia of a ring about its own axis is \[I.\] Then its moment of inertia, about a tangent in the plane is:
  A)
  \[\frac{I}{2}\]                                                    
  done clear
  B)
         \[\frac{3I}{2}\]                 
  done clear
  C)
         \[2I\]                                    
  done clear
  D)
                         \[\frac{5I}{2}\]
  done clear
  View Answer play_arrow

• question_answer75) Mass of a ring is M and its radius is R. It is rotating about its own axis with angular velocity \[\omega \]. Two particles each of mass m sticks to the rim at diameter opposite point. Now angular velocity of ring is:
  A)
  \[\frac{M\omega }{2m}\]                                            
  done clear
  B)
         \[\frac{2m\omega }{M}\]                            
  done clear
  C)
         \[\frac{(M+2m)\omega }{M}\]                 
  done clear
  D)
         \[\frac{M\omega }{(M+2m)}\]
  done clear
  View Answer play_arrow

• question_answer76) A thin rod of mass M acts as a compound pendulum. Distance between centre of suspension and centre of mass is d. Moment of inertia about axis of suspension of\[I.\]Then distance between centre of suspension and centre of oscillation is:
  A)
  \[\frac{I}{Md}\]                               
  done clear
  B)
         \[\frac{I}{2Md}\]                             
  done clear
  C)
         \[\frac{I}{12Md}\]                          
  done clear
  D)
                         \[\frac{3I}{4Md}\]
  done clear
  View Answer play_arrow

• question_answer77) The following bodies have same mass, then which will have maximum moment of inertia about an axis perpendicular to plane and passing through centre of mass:
  A)
   ring of radius a
  done clear
  B)
          disc of radius a
  done clear
  C)
          square plate of side 2n
  done clear
  D)
          four rods forming a square of each side 2a
  done clear
  View Answer play_arrow

• question_answer78) Length of a simple pendulum is \[I\]and its maximum angular displacement is \[\theta \] then its maximum K.E. is :
  A)
  \[mgl\,\sin \,\theta \]                   
  done clear
  B)
                         \[mgl(1+\,\sin \,\theta )\]           
  done clear
  C)
                          \[mgl(1+\,\cos \,\theta )\]         
  done clear
  D)
         \[mgl(1-\,\cos \,\theta )\]
  done clear
  View Answer play_arrow

• question_answer79) Extension in length of a spring is 12 cm, when 5 kg mass is suspended on it. If spring oscillate vertically, then its time period is:
  A)
   0.7 sec
  done clear
  B)
          0.9 sec                
  done clear
  C)
          1.1 sec                
  done clear
  D)
          1.4 sec
  done clear
  View Answer play_arrow

• question_answer80) \[n\] bullets each of mass \[m\] moving with velocity \[u\] strike normally on a wall. The collision is elastic then force on wall is:
  A)
  \[mnu\]                                              
  done clear
  B)
         \[2\,mnu\]
  done clear
  C)
         \[4\,mnu\]                         
  done clear
  D)
                         \[0\]
  done clear
  View Answer play_arrow

• question_answer81) A planet revolve round the sun in elliptical orbit when planet is nearest to sun at a distance \[a\] its velocity is \[\upsilon \] and when it is farthest from sun at a distance \[b,\] its velocity is:
  A)
  \[\frac{b}{a}{{\upsilon }_{1}}\]                                  
  done clear
  B)
         \[\left( \frac{a}{b} \right){{\upsilon }_{1}}\]        
  done clear
  C)
         \[\left( \frac{\sqrt{a}}{b} \right){{\upsilon }_{1}}\]                           
  done clear
  D)
         \[\frac{\sqrt{b}}{a}{{\upsilon }_{1}}\]
  done clear
  View Answer play_arrow

• question_answer82) A space ship of mass 2500 kg is to projected so mat it crosses earths gravitational field. If radius of earth is 6400 km. Then initial minimum velocity of space ship must be:
  A)
   5.6 km/sec                        
  done clear
  B)
          7.25 km/sec                      
  done clear
  C)
          8.5 km/sec        
  done clear
  D)
                          11.2 km/sec
  done clear
  View Answer play_arrow

• question_answer83) The values of radius and mass of a planet are half than that of earth then value of g on that planet is :
  A)
   \[4.9\,m/{{s}^{2}}\]      
  done clear
  B)
          \[9.8\,m/{{s}^{2}}\]                                  
  done clear
  C)
          \[19.6\,m/{{s}^{2}}\]  
  done clear
  D)
                          zero
  done clear
  View Answer play_arrow

• question_answer84) Surface tension force on water rised in capillary tube is balanced by force \[72\times {{10}^{-6}}N\]   acting   in   downward direction due to weight of water. If surface tension of water is 0.06 N/m. Then internal circumference of capillary tube is:
  A)
   0.5 mm                               
  done clear
  B)
          1 mm                   
  done clear
  C)
          1.2 mm                               
  done clear
  D)
          1.75 mm
  done clear
  View Answer play_arrow

• question_answer85) Critical temperature in terms of van der Waals constants a and b is:
  A)
  \[\frac{8a}{27Rb}\]
  done clear
  B)
         \[\frac{27ab}{8R}\]
  done clear
  C)
         \[\frac{8Rb}{27a}\]
  done clear
  D)
          \[\frac{27a}{8Rb}\]
  done clear
  View Answer play_arrow

• question_answer86) \[{{O}_{2}}\] and \[{{H}_{2}}\] gas are at same temperature \[7{}^\circ K\]. Then average kinetic energy of \[{{O}_{2}}\] molecules in comparision of average kinetic energy of \[{{H}_{2}}\] molecules is:
  A)
   16 times             
  done clear
  B)
                          8 times               
  done clear
  C)
          equal         
  done clear
  D)
          \[\frac{1}{16}\]times
  done clear
  View Answer play_arrow

• question_answer87) In an electric dipole value of charge is \[3.2\times {{10}^{-19}}\] coulomb and distance between charges is \[2.4\,\overset{\text{o}}{\mathop{\text{A}}}\,\] It is placed in electric field of \[4\times {{10}^{5}}\,volt/m,\] then dipole moment of dipole is:
  A)
   \[9.6\times {{10}^{-5}}\] coulomb-metre
  done clear
  B)
          \[12.8\times {{10}^{-14}}\] coulomb-metre
  done clear
  C)
          \[7.68\,\times {{10}^{-29}}\] coulomb-metre
  done clear
  D)
          \[30\times {{10}^{-24}}\] coulomb-metre
  done clear
  View Answer play_arrow

• question_answer88) Nucleus of He is revolving in circular orbit of radius 0.8 m. It completes a circle in 2 seconds, then the magnetic induction at the centre of circle is:
  A)
   \[{{}_{\text{0}}}\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-19}}}\text{T}\]   
  done clear
  B)
                         \[\text{1}\text{.6}{{}_{\text{0}}}\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-19}}}\text{T}\]             
  done clear
  C)
         \[\frac{{{}_{\text{0}}}}{2}\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-19}}}\text{T}\]            
  done clear
  D)
                          \[\text{2}{{}_{\text{0}}}\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-19}}}\text{T}\]
  done clear
  View Answer play_arrow

• question_answer89) In potentiometer experiment a battery of e.m.f. 3 volt is balanced at a length of 45 cm and e.m.f. of another battery balance at 60 cm length. Then e.m.f. of the battery is:
  A)
   3 volt                   
  done clear
  B)
                          4 volt
  done clear
  C)
          4.5 volt                               
  done clear
  D)
                                          6 volt
  done clear
  View Answer play_arrow

• question_answer90) Side of a square coil is 4 cm. A magnetic field normal to plane of coil is changing at a rate of 0.4 tesla/ sec. If resistance of coil is \[2\times {{10}^{-3}}\,ohm,\] then induced current is:
  A)
   0.16 A                  
  done clear
  B)
          0.32 A
  done clear
  C)
          3.2 A                    
  done clear
  D)
                          1.6 A
  done clear
  View Answer play_arrow

• question_answer91) In an A.C. circuit inductance L = 0.5 H and capacitance \[C=8\,\mu F.\] For maximum current in circuit, value of angular frequency is:
  A)
   500 rad/sec    
  done clear
  B)
                          250 rad/sec                       
  done clear
  C)
          150 rad/sec       
  done clear
  D)
                          100 rad/sec
  done clear
  View Answer play_arrow

• question_answer92) In an electric motor back e.m.f. is maximum:
  A)
   at the start of motor
  done clear
  B)
          at the stop of motor
  done clear
  C)
          at maximum speed of motor
  done clear
  D)
          same in all case
  done clear
  View Answer play_arrow

• question_answer93) A chock coil of negligible resistance connected to 220 volt A.C. source- The 5 mA current flows through it. The average power consumed by chock coil is:
  A)
   zero                                     
  done clear
  B)
          11 watt                               
  done clear
  C)
          \[44\times {{10}^{3}}\] watt      
  done clear
  D)
          1.1 watt
  done clear
  View Answer play_arrow

• question_answer94) Self-inductance of a chock coil is 10 m Hz. When it is connected with 10 volt D.C. source, then power consumed is 20 watt. And when connected with 10 volt A.C. source, the average power consumed is 10 watt. Frequency of A.C. source is :
  A)
   50 Hz                                   
  done clear
  B)
          60 Hz                   
  done clear
  C)
          80Hz         
  done clear
  D)
          100 Hz
  done clear
  View Answer play_arrow

• question_answer95) On a bulb is marked 60 volt and 10 watt and is to be run with an A.C. source of 100 volt. Then inductance of series coil inquired is:
  A)
   1.53 H  
  done clear
  B)
                          2.15 H
  done clear
  C)
          3.27 H                  
  done clear
  D)
                                          3.89 H
  done clear
  View Answer play_arrow

• question_answer96) In an L-C-R circuit C = 25 \[\mu F,\]L= 0.1 Hand R = 25 \[\Omega \] if an e.m.f. E = 310 sin 314 t volt is connected to circuit, then impedence is:
  A)
   \[57.32\,\Omega \]                       
  done clear
  B)
                          \[79.48\,\Omega \]       
  done clear
  C)
          \[89.5\,\Omega \]                         
  done clear
  D)
          \[99.1\,\Omega \]
  done clear
  View Answer play_arrow

• question_answer97) In above equation what inductance must be added in the circuit so the impedence become minimum :
  A)
   0, 31 H
  done clear
  B)
          0.35 H                  
  done clear
  C)
          1 H                        
  done clear
  D)
                          2 H
  done clear
  View Answer play_arrow

• question_answer98) In question (96) value of current is:
  A)
   \[i=5.4\,\sin \,(314t+\phi )\]      
  done clear
  B)
         \[i=3.\,\sin \,(314t+\phi )\]         
  done clear
  C)
         \[i=3.\,1\,\sin \,(314t-\phi )\]    
  done clear
  D)
         \[i=3.\,46\,\sin \,(314t+\phi )\]
  done clear
  View Answer play_arrow

• question_answer99) In an A.C. circuit current and voltage are:                 \[i={{i}_{0}}\,\sin \,(\omega t-\pi /2),e={{e}_{0}}\,\sin \,\omega t\]                 then average power consumed in the circuit is:
  A)
   \[\frac{1}{2}\,{{i}_{0}}{{e}_{0}}\,watt\]                                
  done clear
  B)
         \[{{i}_{0}}{{e}_{0}}\] watt            
  done clear
  C)
          \[ie\]watt                          
  done clear
  D)
          zero
  done clear
  View Answer play_arrow

• question_answer100) The correct circuit for full wave rectifier containing a capacitor C and load resistance \[{{R}_{L}}\] is:
  A)
                 
  done clear
  B)
                                                                                        
  done clear
  C)
                                          
  done clear
  D)
                                          
  done clear
  View Answer play_arrow

• question_answer101) Electronic configuration or \[Al\] is:
  A)
   \[2,8,3\]            
  done clear
  B)
   \[2,6,5\]             
  done clear
  C)
          \[2,3,8\]             
  done clear
  D)
          \[2,5,6\]
  done clear
  View Answer play_arrow

• question_answer102) Equilibrium constant \[{{K}_{c}}\] for the reaction \[2N{{H}_{3}}{{N}_{2}}+3{{H}_{2}}\]is given by the following:
  A)
   \[\frac{{{[N{{H}_{3}}]}^{2}}}{[{{N}_{2}}]{{[{{H}_{2}}]}^{3}}}\]   
  done clear
  B)
   \[\frac{[{{N}_{2}}]{{[{{H}_{2}}]}^{3}}}{{{[N{{H}_{3}}]}^{2}}}\]
  done clear
  C)
   \[\frac{3{{[H]}_{2}}[{{N}_{2}}]}{2[N{{H}_{3}}]}\]
  done clear
  D)
   \[\frac{2[N{{H}_{3}}]}{{{[H]}_{2}}[{{N}_{2}}]}\]
  done clear
  View Answer play_arrow

• question_answer103) Which of the following reduce Tollens reagent?
  A)
   \[HOOC-COOH\]
  done clear
  B)
   \[{{C}_{6}}{{H}_{5}}OOH\]
  done clear
  C)
   \[C{{H}_{3}}COOH\]
  done clear
  D)
   \[HCOOH\]
  done clear
  View Answer play_arrow

• question_answer104) In natural petrolium is:
  A)
   saturated hydrocarbon
  done clear
  B)
   compound of sulphur
  done clear
  C)
   ring saturated hydrocarbon
  done clear
  D)
   all the above
  done clear
  View Answer play_arrow

• question_answer105) In any system at equilibrium state if temperature, pressure and concentration is changed then the equilibrium shifts in the direction that tends to neutralize the effect of change. This is known as:
  A)
   Guldberg Wages law
  done clear
  B)
   Gaylussacs law
  done clear
  C)
   Avogadros rule
  done clear
  D)
   Le-Chateliers principle
  done clear
  View Answer play_arrow

• question_answer106) \[X+NaN{{O}_{2}}+HCl\xrightarrow{{}}C{{O}_{2}}+{{N}_{2}}+{{H}_{2}}O\] compound X is:
  A)
   \[C{{H}_{3}}CON{{H}_{2}}~\] 
  done clear
  B)
   \[C{{H}_{3}}NO\]
  done clear
  C)
   \[N{{H}_{2}}CON{{H}_{2}}\]
  done clear
  D)
   \[C{{H}_{3}}N{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer107) The main product of the reaction of \[{{C}_{2}}{{H}_{5}}N{{H}_{2}}\] with north is acid is:
  A)
   \[{{C}_{2}}{{H}_{5}}OH\]      
  done clear
  B)
          \[C{{H}_{3}}ONO\]
  done clear
  C)
   \[C{{H}_{3}}CN\]       
  done clear
  D)
          \[C{{H}_{3}}-N=0\]
  done clear
  View Answer play_arrow

• question_answer108) The shape of  \[CC{{l}_{4}}\]is:
  A)
   triangular planer
  done clear
  B)
   tetrahedral
  done clear
  C)
   square planar  
  done clear
  D)
   linear
  done clear
  View Answer play_arrow

• question_answer109) Cryolite is added to alumina in the extraction of aluminium:
  A)
   to remove impurity
  done clear
  B)
   to dissolve alumina
  done clear
  C)
   to catalyze
  done clear
  D)
   to obtain pure \[Al\]
  done clear
  View Answer play_arrow

• question_answer110) The aqueous solution of a salt is acidic salt is made up of:
  A)
   Strong acid and weak base
  done clear
  B)
   Strong base and weak acid
  done clear
  C)
   Strong acid and strong base
  done clear
  D)
   Weak acid and weak base
  done clear
  View Answer play_arrow

• question_answer111) In atomic pile the \[{{D}_{2}}O\] act as:
  A)
   fuel            
  done clear
  B)
   controller
  done clear
  C)
   moderator     
  done clear
  D)
   coolent
  done clear
  View Answer play_arrow

• question_answer112) \[C{{H}_{3}}-O-C{{H}_{3}}\] and \[C{{H}_{3}}C{{H}_{2}}OH\] are:
  A)
   geometrical isomers
  done clear
  B)
   positional isomers
  done clear
  C)
   chain isomers
  done clear
  D)
   functional isomers
  done clear
  View Answer play_arrow

• question_answer113) The I. U. P. A. C. name of \[{{(C{{H}_{3}})}_{2}}CH-CH{{(C{{H}_{3}})}_{2}}\] is:
  A)
   1, 1, 2, 3-tetra methyl ethane
  done clear
  B)
   2, 3-dimethyl butane
  done clear
  C)
   1, 2-dimethyl ethane
  done clear
  D)
   2, 3, 3-trimethyl butane
  done clear
  View Answer play_arrow

• question_answer114) Alkaline \[KMn{{O}_{4}}\]solution is called:
  A)
   Benedict solution
  done clear
  B)
   Tollens reagent
  done clear
  C)
   Baeyers reagent
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer115) Which of the following contain acidic hydrogen?
  A)
   \[C{{H}_{3}}-C\equiv CH\]
  done clear
  B)
   \[C{{H}_{3}}-CH=C{{H}_{2}}\]
  done clear
  C)
   \[C{{H}_{3}}-CH=CH-C{{H}_{3}}\]
  done clear
  D)
   \[C{{H}_{3}}-C{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer116) Which of the following will be obtained by mixing \[50%\] \[NaOH\] to bauxite?
  A)
   \[Al{{(OH)}_{3}}\]
  done clear
  B)
   \[Al\]
  done clear
  C)
   \[Fe\]           
  done clear
  D)
   \[NaAl{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer117) Deviation from Aufbaus principle is:
  A)
   
  done clear
  B)
  
  done clear
  C)
   
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer118) \[C{{H}_{3}}-C\equiv CH+{{H}_{2}}O\xrightarrow{{{H}^{+}}/H{{g}^{2+}}}X\] compound X is:
  A)
   \[C{{H}_{3}}\text{ }COC{{H}_{3}}\]
  done clear
  B)
   \[C{{H}_{3}}C{{H}_{2}}COOH\]
  done clear
  C)
   \[C{{H}_{3}}C{{H}_{2}}CHO\]
  done clear
  D)
   \[C{{H}_{3}}-CH=C{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer119) When acetone react with chloroform and \[KOH\] formed hypnotic drug. Its name is:
  A)
   chloritons      
  done clear
  B)
   chloropicrin
  done clear
  C)
   asprin         
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer120) Brass is:
  A)
   an element    
  done clear
  B)
   a metal
  done clear
  C)
   transition metal
  done clear
  D)
   an alloy
  done clear
  View Answer play_arrow

• question_answer121) \[C{{H}_{3}}\text{ }CHO+C{{H}_{3}}\text{ }Mg\text{ }Br\xrightarrow{{}}\text{ }X\]compound X is:
  A)
   a secondary alcohol
  done clear
  B)
   a tertiary alcohol
  done clear
  C)
   a primary alcohol
  done clear
  D)
   \[C{{H}_{3}}-C-C{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer122) The enzyme which converts starch into maltose is:
  A)
   maltase        
  done clear
  B)
          diastase
  done clear
  C)
   zymase               
  done clear
  D)
          invertase
  done clear
  View Answer play_arrow

• question_answer123) \[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\] and \[C{{H}_{3}}-O-{{C}_{3}}{{H}_{7}}\]show following type of isomerism:
  A)
   metamerism   
  done clear
  B)
   functional group
  done clear
  C)
   tautomerism   
  done clear
  D)
   position
  done clear
  View Answer play_arrow

• question_answer124) The oxidation number of S in \[{{H}_{2}}{{S}_{2}}{{O}_{8}}\]  is:
  A)
   \[+6\]                  
  done clear
  B)
          \[-6\]
  done clear
  C)
   \[+4\]                  
  done clear
  D)
          \[+8\]
  done clear
  View Answer play_arrow

• question_answer125) The shape of electron cloud is determined by:
  A)
   Azimuthal quantum number
  done clear
  B)
   Spin quantum number
  done clear
  C)
   Principle quantum number
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer126) On addition of \[N{{H}_{4}}OH\]in the equilibrium: \[N{{H}_{4}}ClN{{H}_{4}}^{\oplus }+C{{l}^{\bigcirc -}}\]
  A)
   more \[N{{H}_{4}}\] is formed
  done clear
  B)
   dissociation of \[N{{H}_{4}}Cl\]increase
  done clear
  C)
   more \[C{{l}^{-}}\] is formed
  done clear
  D)
   dissociation of \[N{{H}_{4}}Cl\]decreases
  done clear
  View Answer play_arrow

• question_answer127) For an electron \[n=2\]and \[l=1\] the total magnetic quantum numbers are:
  A)
   \[0\]                                    
  done clear
  B)
   \[3\]    
  done clear
  C)
   \[2\]                    
  done clear
  D)
          \[1\]
  done clear
  View Answer play_arrow

• question_answer128) An alkene on ozonolysis gives only one compound. Alkene is:
  A)
   \[C{{H}_{3}}-CH=CH-C{{H}_{3}}\]
  done clear
  B)
   \[C{{H}_{3}}-CH=C{{H}_{2}}\]
  done clear
  C)
   \[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,=C{{H}_{2}}\]
  done clear
  D)
   \[C{{H}_{3}}-C{{H}_{2}}-CH=C{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer129) If the value of pH of solution is 2, then the concentration of \[({{H}^{+}})\] is:
  A)
   \[{{10}^{-2}}M\]
  done clear
  B)
   \[2\times 10M\]
  done clear
  C)
   \[0.001M\]
  done clear
  D)
   \[0.0001M\]
  done clear
  View Answer play_arrow

• question_answer130) Bond with lowest energy is:
  A)
   \[\pi \] bond        
  done clear
  B)
   hydrogen bond
  done clear
  C)
   ionic bond     
  done clear
  D)
   o bond
  done clear
  View Answer play_arrow

• question_answer131) Dipositive ion of an element has the electronic configuration \[2,8,10\]. Atomic number of the element is:
  A)
   \[22\]                  
  done clear
  B)
          \[24\]
  done clear
  C)
   \[25\]                  
  done clear
  D)
          \[28\]
  done clear
  View Answer play_arrow

• question_answer132) The negative part of the addition reagent adds on that C-atom of unsymmetrical alkene which bears the minimum number of H-atoms. The statement is related to:
  A)
   Peroxide effect
  done clear
  B)
   Saytzeffs rule
  done clear
  C)
   Markownikoffs rule
  done clear
  D)
   Le-Chateliers principle
  done clear
  View Answer play_arrow

• question_answer133) \[C{{H}_{3}}COONa\xrightarrow[\Delta ]{\text{Sodalime}}X+N{{a}_{2}}C{{O}_{3}}\].
  A)
   \[C{{H}_{4}}\]       
  done clear
  B)
   \[C{{H}_{3}}OH\]
  done clear
  C)
   \[C{{H}_{3}}-C{{H}_{3}}\]
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer134) A atom of \[Mn\] have (atomic no. = 25 and mass no. = 55). The nucleus will have:
  A)
   25 proton      
  done clear
  B)
   55 proton
  done clear
  C)
   25 neutron     
  done clear
  D)
   55 neutron
  done clear
  View Answer play_arrow

• question_answer135) \[RMgI+C{{H}_{3}}OH\xrightarrow{{}}X,\], compound X is:
  A)
   \[R-R\]      
  done clear
  B)
   \[R-H\]
  done clear
  C)
   \[R-OH\]
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer136) Which of the following will form most stable carbonium ion on dehydration:
  A)
   \[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,-{{(C{{H}_{3}})}_{2}}\]
  done clear
  B)
   \[C{{H}_{3}}-CH-C{{H}_{2}}C{{H}_{3}}\]
  done clear
  C)
   \[C{{H}_{3}}\text{ }C{{H}_{2}}\text{ }C{{H}_{2}}\text{ }C{{H}_{2}}\text{ }OH\]
  done clear
  D)
   \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}OH\]
  done clear
  View Answer play_arrow

• question_answer137) From left to right in a period ionization potential:
  A)
   decreases
  done clear
  B)
   increases.
  done clear
  C)
   first increases then decreases
  done clear
  D)
   first decreases then increases
  done clear
  View Answer play_arrow

• question_answer138) Washing soda is:
  A)
   \[N{{a}_{2}}C{{O}_{3}}.10{{H}_{2}}O\]
  done clear
  B)
   \[{{(NaP{{O}_{3}})}_{6}}\]
  done clear
  C)
   \[N{{a}_{2}}C{{O}_{3}}\]      
  done clear
  D)
   \[N{{a}_{2}}{{B}_{4}}{{O}_{7}}\text{ }.\text{ 10}{{H}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer139) Lithium and magnesium resemble in properties becauses:
  A)
   their electronic configuration is same
  done clear
  B)
   ratio of change of size of their cation is approximately same
  done clear
  C)
   both have approximately same size
  done clear
  D)
   both are found together in nature.
  done clear
  View Answer play_arrow

• question_answer140) Moving down a group:
  A)
   electronegativity increases
  done clear
  B)
   ionization potential increases
  done clear
  C)
   oxidizing strength increases
  done clear
  D)
   reducing strength increases
  done clear
  View Answer play_arrow

• question_answer141) Which of the following property oftenly increases down a group?
  A)
   Atomic radius
  done clear
  B)
   Electron affinity
  done clear
  C)
   Electronegativity
  done clear
  D)
   Ionization potential
  done clear
  View Answer play_arrow

• question_answer142) Power alcohol is:
  A)
   \[absolute\text{ }alcohol+C{{H}_{3}}OH\]
  done clear
  B)
   absolute + petrol + benzene
  done clear
  C)
   \[absolute\text{ }alcohol+C{{H}_{3}}COOH\]
  done clear
  D)
   \[absolutealcohol+{{C}_{6}}{{H}_{5}}OH\]
  done clear
  View Answer play_arrow

• question_answer143) In the extraction of copper, ore is heated in the presence of air at high temperature. This process is called:
  A)
   roasting        
  done clear
  B)
   calcination
  done clear
  C)
   smelting       
  done clear
  D)
   distillation
  done clear
  View Answer play_arrow

• question_answer144) Carbonium ion with highest stability is:
  A)
   \[{{(C{{H}_{3}})}_{3}}\overset{+}{\mathop{C}}\,\]
  done clear
  B)
   \[\overset{+}{\mathop{C}}\,{{H}_{3}}\]
  done clear
  C)
   \[C{{H}_{3}}-\overset{+}{\mathop{C}}\,H-C{{H}_{3}}\]
  done clear
  D)
   \[C{{H}_{3}}C{{H}_{2}}\overset{+}{\mathop{C}}\,{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer145) A white precipitate of silver chloride is formed when sodium chloride solution is added to silver nitrate solution because:
  A)
   \[AgN{{O}_{3}}\]is insoluble in \[NaCl\]solution
  done clear
  B)
   \[NaCl\] is insoluble in water
  done clear
  C)
   \[NaCl\] is an inorganic compound
  done clear
  D)
   \[C{{l}^{-}}\] ions are present in \[NaCl\] solution
  done clear
  View Answer play_arrow

• question_answer146) \[{{N}_{2}}+3{{H}_{2}}2N{{H}_{3}}+22.4kcal\] the favourable condition for the formation of ammonia is:
  A)
   high temperature and high pressure
  done clear
  B)
   low temperature and low pressure
  done clear
  C)
   high temperature and low pressure
  done clear
  D)
   low temperature and high pressure
  done clear
  View Answer play_arrow

• question_answer147) \[C{{H}_{3}}Cl+2Na+C{{H}_{3}}Cl\xrightarrow{{}}\] \[C{{H}_{3}}-C{{H}_{3}}+2NaCl\] This reaction is:
  A)
   Kolbes electrolysis
  done clear
  B)
   Williamsons synthesis
  done clear
  C)
   Wurtz reaction
  done clear
  D)
   Sabatier Senderens reaction
  done clear
  View Answer play_arrow

• question_answer148) Reaction of \[C{{H}_{3}}C1\]with alcoholic \[KOH\] will give:
  A)
   \[C{{H}_{4}}\]         
  done clear
  B)
   \[C{{H}_{3}}OH\]
  done clear
  C)
   \[C{{H}_{2}}=C{{H}_{2}}\]
  done clear
  D)
   \[C{{H}_{3}}CHO\]
  done clear
  View Answer play_arrow

• question_answer149) \[{{C}_{2}}{{H}_{5}}COOAg+C{{l}_{2}}\xrightarrow{\Delta }{{C}_{2}}{{H}_{5}}Cl\] \[+AgCl+C{{O}_{2}}\] This reaction is called:
  A)
   Wurtz-Fitting reaction
  done clear
  B)
   Hunsdicker reaction
  done clear
  C)
   Hell-Volhard Zelensky reaction
  done clear
  D)
   Hoffmann mustard oil reaction
  done clear
  View Answer play_arrow

• question_answer150) Pyrite are concentrated by the following method:
  A)
   gravity separation
  done clear
  B)
   froth floatation
  done clear
  C)
   roasting        
  done clear
  D)
   calcination
  done clear
  View Answer play_arrow

• question_answer151) The necessary condition for precipitation is:
  A)
   solubility product \[<\] ionic product
  done clear
  B)
   solubility product \[>\] ionic product
  done clear
  C)
   solubility product \[=\] ionic product
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer152) Which of the following reaction does not occurs?
  A)
   \[Cu+2AgN{{O}_{3}}\xrightarrow{{}}Cu{{(N{{O}_{3}}\text{)}}_{2}}+2Ag\]
  done clear
  B)
   \[2KBr+{{I}_{2}}\xrightarrow{{}}2KI+B{{r}_{2}}\]
  done clear
  C)
   \[Fe+{{H}_{2}}S{{O}_{4}}\xrightarrow{{}}FeS{{O}_{4}}+{{H}_{2}}\]
  done clear
  D)
   \[CuO+{{H}_{2}}\xrightarrow{{}}Cu+{{H}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer153) \[HCHO+40%\]strong alkaline solution \[\xrightarrow{\,}\] one of the product is:
  A)
   \[C{{H}_{3}}OH\]       
  done clear
  B)
          \[C{{H}_{3}}C{{H}_{2}}OH\]
  done clear
  C)
   \[C{{H}_{3}}COOH\]    
  done clear
  D)
          \[CH\equiv CH\]
  done clear
  View Answer play_arrow

• question_answer154) In which of the following reaction the oxidation and reduction complete?
  A)
   \[NaBr+HCl\text{ }\xrightarrow{{}}NaCl+\text{ }HBr\]
  done clear
  B)
   \[HBr+AgN{{O}_{3}}\xrightarrow{{}}AgBr+HN{{O}_{3}}\]
  done clear
  C)
   \[{{H}_{_{2}}}+B{{r}_{2}}\xrightarrow{{}}2HBr\]
  done clear
  D)
   \[N{{a}_{2}}O+{{H}_{2}}S{{O}_{4}}\xrightarrow{{}}N{{a}_{2}}S{{O}_{4}}+{{H}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer155) Which of the following reaction is not affected by the change of pressure:
  A)
   \[{{N}_{2}}+{{O}_{2}}2NO\]
  done clear
  B)
   \[{{N}_{2}}+3{{H}_{2}}2N{{H}_{3}}\]
  done clear
  C)
   \[2S{{O}_{2}}+{{O}_{2}}2S{{O}_{3}}\]
  done clear
  D)
   \[PC{{l}_{3}}+C{{l}_{2}}PC{{l}_{5}}\]
  done clear
  View Answer play_arrow

• question_answer156) Boiling point of ethyl alcohol is higher than dimethyl ether although the molecular weights of both are same. Its reason is:
  A)
   ethanol has hydrogen bond
  done clear
  B)
   methyl groups are attached with oxygen in ether
  done clear
  C)
   ether is insoluble in water
  done clear
  D)
   dipole moment of ethanol  is comparitively more
  done clear
  View Answer play_arrow

• question_answer157) No two electron of an atom can have the same set of four quantum numbers this statement is related to:
  A)
   Faults rule
  done clear
  B)
   \[(n+l)\]rule
  done clear
  C)
   Hunds rule
  done clear
  D)
   Aufbaus principal
  done clear
  View Answer play_arrow

• question_answer158) Which of the following will give both iodoform test and Fehlings test?
  A)
  \[C{{H}_{3}}C{{H}_{2}}OH\]   
  done clear
  B)
   \[C{{H}_{3}}COC{{H}_{3}}\]
  done clear
  C)
   \[C{{H}_{3}}CHO\]
  done clear
  D)
   \[HCHO\]
  done clear
  View Answer play_arrow

• question_answer159) In the froth floatation process for the concentration of ore, the ore particles rise to the surface because ore particle:
  A)
   are light
  done clear
  B)
   dont get wet by water
  done clear
  C)
   are insoluble in water
  done clear
  D)
   have electric charge
  done clear
  View Answer play_arrow

• question_answer160) \[C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}+C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}\xrightarrow{{}}\] \[C{{H}_{3}}COC{{H}_{2}}COO{{C}_{2}}{{H}_{5}}+{{C}_{2}}{{H}_{5}}OH\] This reaction is called:
  A)
   Williamsons synthesis
  done clear
  B)
   Esterification
  done clear
  C)
   Trans esterification
  done clear
  D)
   Claisen condensation
  done clear
  View Answer play_arrow

• question_answer161) Which is an amphoteric oxide?
  A)
   \[MgO\]             
  done clear
  B)
          \[{{K}_{2}}O\]
  done clear
  C)
   \[A{{l}_{2}}{{O}_{3}}\] 
  done clear
  D)
          \[CuO\]
  done clear
  View Answer play_arrow

• question_answer162) For 2p-orbital:
  A)
   \[n=2,\]\[l=0\]    
  done clear
  B)
   \[n=2,\]\[l=1\]
  done clear
  C)
    \[n=1,\]\[l=0\] 
  done clear
  D)
    \[n=1,\]\[l=2\]
  done clear
  View Answer play_arrow

• question_answer163) Alkaline hydrolysis of an ester is called:
  A)
   saponification  
  done clear
  B)
   hydrolysis
  done clear
  C)
   neutralization  
  done clear
  D)
   hydrogenations
  done clear
  View Answer play_arrow

• question_answer164) Most of the alloys are made from the following type of element:
  A)
   f-block         
  done clear
  B)
   p-block
  done clear
  C)
   d-block         
  done clear
  D)
   s-block
  done clear
  View Answer play_arrow

• question_answer165) In       \[\pi \]bond and a bond i:
  A)
   \[9\sigma \,\,\,9\pi \]                   
  done clear
  B)
          \[5\sigma \,\,\,9\pi \]
  done clear
  C)
   \[9\sigma \,\,\,7\pi \]   
  done clear
  D)
          \[5\sigma \,\,\,8\pi \]
  done clear
  View Answer play_arrow

• question_answer166) Oxytocine is:
  A)
   a hormone    
  done clear
  B)
          an enzyme
  done clear
  C)
   an antibody   
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer167) Picric acid is:
  A)
   \[2,4,6\]-trinitro phenol
  done clear
  B)
   \[2,4\]-dinitro phenol
  done clear
  C)
   \[2,4,6\]-trinitro benzoic acid
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer168) The compound obtained by the reaction of \[C{{H}_{3}}\text{ }Mg\text{ }Br\]with formaldehyde is:
  A)
   \[C{{H}_{3}}COOH\]   
  done clear
  B)
   \[C{{H}_{3}}C{{H}_{2}}OH\]
  done clear
  C)
   \[C{{H}_{3}}CHO\]    
  done clear
  D)
   \[HCOOH\]
  done clear
  View Answer play_arrow

• question_answer169) The correct sequence of die radius of an atom its cation and anion is:
  A)
   atom > cation > anion
  done clear
  B)
   atom > cation = anion
  done clear
  C)
   atom > cation > anion
  done clear
  D)
   atom < cation > anion 
  done clear
  View Answer play_arrow

• question_answer170) Which of the following is insoluble in concentrate sulphuric acid?
  A)
   Benzene       
  done clear
  B)
   Hexene
  done clear
  C)
   Ethanol        
  done clear
  D)
   n-hexane
  done clear
  View Answer play_arrow

• question_answer171) \[C{{H}_{3}}C{{H}_{2}}I+NaOR\to C{{H}_{3}}C{{H}_{2}}OR+NaI\] This reaction is:
  A)
   Williamsons continuous etherification
  done clear
  B)
   Curteus reaction
  done clear
  C)
   Williamsons synthesis
  done clear
  D)
   Wurtz reaction
  done clear
  View Answer play_arrow

• question_answer172) Conjugate base of \[HC{{O}_{3}}^{-}\] is:
  A)
   \[C{{O}_{3}}^{2-}\]                        
  done clear
  B)
   \[C{{O}_{2}}\]
  done clear
  C)
   \[{{H}_{2}}O\]
  done clear
  D)
          \[{{H}_{2}}C{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer173) Saturated hydrocarbon gives:
  A)
   electrophilic substitution
  done clear
  B)
   free radical substitution
  done clear
  C)
   electrophilic addition
  done clear
  D)
   free radical addition
  done clear
  View Answer play_arrow

• question_answer174) Ethylene can be prepared by the electrolysis of aqueous solution of:
  A)
   potassium formate
  done clear
  B)
   potassium succinate
  done clear
  C)
   potassium malate
  done clear
  D)
   potassium turner ate
  done clear
  View Answer play_arrow

• question_answer175) \[{{N}_{2}}+{{O}_{2}}2NO,\] \[\Delta H=43.2kcal\] Forward reaction is favoured by:
  A)
   decrease in temperature
  done clear
  B)
   decrease in pressure
  done clear
  C)
   increase in pressure
  done clear
  D)
   increase in temperature
  done clear
  View Answer play_arrow

• question_answer176) The electronic configuration of alkaline earth metal is:
  A)
   \[n{{s}^{2}}(n-1){{d}^{10}}\]
  done clear
  B)
   \[n{{s}^{2}}\]
  done clear
  C)
   \[n{{s}^{1}}\]             
  done clear
  D)
   \[n{{p}^{6}}\]
  done clear
  View Answer play_arrow

• question_answer177) \[{{C}_{2}}{{H}_{5}}CHO\] reacts with a base to give 3-hydroxybutanol. This reaction is called:
  A)
   Aldol condensation
  done clear
  B)
   Claisens condensation
  done clear
  C)
   Polymerization
  done clear
  D)
   Riemer-Tiemann reaction
  done clear
  View Answer play_arrow

• question_answer178) Which of the following oxidation number is not zero?
  A)
   \[{{S}_{8}}\]                     
  done clear
  B)
   \[{{P}_{4}}\]
  done clear
  C)
    \[HCHO\]          
  done clear
  D)
          \[C{{H}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer179) Absolute alcohol from rectified sprit can be prepared by:
  A)
   hydrolysis
  done clear
  B)
   steam distillation
  done clear
  C)
   azeotropic distillation
  done clear
  D)
   fractional distillation
  done clear
  View Answer play_arrow

• question_answer180) Which of the following have ionic bond, covalent bond and co-ordinate bond?
  A)
   Water
  done clear
  B)
   Ammonia
  done clear
  C)
   Potassium bromide
  done clear
  D)
   Copper sulphate pentahydrate
  done clear
  View Answer play_arrow

• question_answer181)  This reaction is called:
  A)
   Deals Alder reaction
  done clear
  B)
   Finkalstine reaction
  done clear
  C)
   Gattermann reaction
  done clear
  D)
   Riemer-Tiemann reaction
  done clear
  View Answer play_arrow

• question_answer182) Electropositive character in a period from left to right:
  A)
   first increases then decreases
  done clear
  B)
   first decreases then increases
  done clear
  C)
   decreases
  done clear
  D)
   increases
  done clear
  View Answer play_arrow

• question_answer183) The product of the reaction of 2 mole of chloroform with \[4\text{ }mole\]of \[KOH\]:
  A)
   formic acid
  done clear
  B)
   succinic acid
  done clear
  C)
   potassium formate
  done clear
  D)
   potassium chloride
  done clear
  View Answer play_arrow

• question_answer184) Bond angle and bond length in benzene are:
  A)
   \[{{120}^{o}}\]and \[1.39\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  B)
   \[{{120}^{o}}\] and \[154\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
   \[{{180}^{o}}\] and \[1.33\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  D)
   \[{{120}^{o}}\] and \[1.34\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer185) A catalyst in a reversible equilibrium:
  A)
   increases the rate of backward reaction
  done clear
  B)
   increase the rate of forward reaction
  done clear
  C)
   increases the rate of forward and backward reaction with equal rate
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer186) Element with atomic number 33, the proton and number of atom have:
  A)
  \[33\]                                   
  done clear
  B)
         \[3\]    
  done clear
  C)
  \[6\]                     
  done clear
  D)
         \[9\]
  done clear
  View Answer play_arrow

• question_answer187) High hydrocarbon change into low hydrocarbon, this process is known as:
  A)
   mining        
  done clear
  B)
   cracking
  done clear
  C)
   isomerization  
  done clear
  D)
   hydroforming
  done clear
  View Answer play_arrow

• question_answer188) Which of the following can act as oxidant as well as reductant?
  A)
   \[{{H}_{2}}S{{O}_{4}}\]                
  done clear
  B)
          \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]
  done clear
  C)
   \[{{H}_{2}}{{O}_{2}}\]                  
  done clear
  D)
          \[NaOH\]
  done clear
  View Answer play_arrow

• question_answer189) Which of the following reagent will distinguish  between  propene  and propyne:
  A)
   Bromine water
  done clear
  B)
   \[{{[Ag{{(N{{H}_{3}})}_{2}}]}^{+}}\]
  done clear
  C)
   Alkaline \[KMn{{O}_{4}}\]
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer190) Which of the following is dimagnetic?
  A)
   \[{{O}_{2}}^{-}\]                             
  done clear
  B)
   \[NO\]  
  done clear
  C)
   \[{{O}_{2}}\]   
  done clear
  D)
          \[{{F}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer191) Which of the following Hoffmann bromide reaction?
  A)
   \[C{{H}_{2}}COCl+C{{H}_{3}}OH\xrightarrow{{}}\]\[C{{H}_{2}}COOC{{H}_{3}}HCl\]
  done clear
  B)
   \[C{{H}_{3}}CON{{H}_{2}}+B{{r}_{2}}+NaOH\xrightarrow{{}}\]\[C{{H}_{3}}N{{H}_{2}}+{{K}_{2}}C{{O}_{3}}+2KBr+2{{H}_{2}}O\]
  done clear
  C)
   \[RCN+4H\xrightarrow{{}}RCHN{{H}_{2}}\]
  done clear
  D)
   \[C{{H}_{3}}CN+2{{H}_{2}}\text{O}\xrightarrow{{}}C{{H}_{3}}COOC{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer192) What is the pH value of \[40ml\text{ }0.10M\,HCl\] solution combind with \[10ml\text{ }0.45M\] \[NaOH\]solution?
  A)
   \[12\]                  
  done clear
  B)
          \[8\]    
  done clear
  C)
   \[10\]                  
  done clear
  D)
          \[6\]
  done clear
  View Answer play_arrow

• question_answer193) Aromatic compound mainly gives:
  A)
   electrophilic substitution reaction
  done clear
  B)
   nucleophilic substitution reaction
  done clear
  C)
   nucleophilic addition reaction
  done clear
  D)
   electrophilic addition reaction
  done clear
  View Answer play_arrow

• question_answer194) Lewis acid is:
  A)
   \[N{{O}_{2}}^{-}\]
  done clear
  B)
                          \[B{{F}_{3}}\] 
  done clear
  C)
   \[C{{l}^{-}}\]  
  done clear
  D)
                          \[N{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer195) If the concentration of \[Cr{{O}_{4}}^{---}\] in saturated solution of \[AgCr{{O}_{4}},\] then the solubility product is:
  A)
   \[4\times {{10}^{-8}}\]
  done clear
  B)
   \[8\times {{10}^{-12}}\]
  done clear
  C)
   \[16\times {{10}^{-12}}\]
  done clear
  D)
   \[32\times {{10}^{-12}}\]
  done clear
  View Answer play_arrow

• question_answer196) This reaction is called:
  A)
   Friedel Craft reaction
  done clear
  B)
   Schmidt reaction
  done clear
  C)
   Schotten Baumann reaction
  done clear
  D)
   Gatter-mann reaction
  done clear
  View Answer play_arrow

• question_answer197) \[HCHO\]reacts with \[N{{H}_{3}}\]to give:
  A)
   formaldehyde
  done clear
  B)
   formaltne
  done clear
  C)
   hexamethylene
  done clear
  D)
   formaldehyde ammonia
  done clear
  View Answer play_arrow

• question_answer198) Malachite is the ore of:
  A)
   \[Ag\]                 
  done clear
  B)
          \[Al\]
  done clear
  C)
   \[Fe\]                  
  done clear
  D)
          \[Cu\]
  done clear
  View Answer play_arrow

• question_answer199) The following property is not shown by d-block elements:
  A)
   diamagnetism
  done clear
  B)
   paramagnetism
  done clear
  C)
   tendency to form complex compounds
  done clear
  D)
   variable valency
  done clear
  View Answer play_arrow

• question_answer200) If the pH value of solution is 5 then what is the pOH value of solution?
  A)
   \[8\]    
  done clear
  B)
                          \[20\]   
  done clear
  C)
   \[9\]                    
  done clear
  D)
          \[21\]
  done clear
  View Answer play_arrow

• question_answer201) Metamorphosis in Cockroach is:
  A)
   complete                           
  done clear
  B)
   incomplete
  done clear
  C)
   holometabolous
  done clear
  D)
          absent
  done clear
  View Answer play_arrow

• question_answer202) Which animal is extinct from India?
  A)
   Lion                                      
  done clear
  B)
   Tiger
  done clear
  C)
   Dodo                   
  done clear
  D)
          Cheetah
  done clear
  View Answer play_arrow

• question_answer203) Maximum BMR is present in:
  A)
   Frog       
  done clear
  B)
                          Elephant
  done clear
  C)
   Horse                  
  done clear
  D)
          Rat
  done clear
  View Answer play_arrow

• question_answer204) In following layers, which layer is not penetrated by blood cells?
  A)
   Dermis                                
  done clear
  B)
   External epidermis
  done clear
  C)
   Muscles             
  done clear
  D)
          Hypodermal layer
  done clear
  View Answer play_arrow

• question_answer205) Which organ, converts urea into ammonia is?
  A)
   Kidney                                
  done clear
  B)
   Testis
  done clear
  C)
   Liver                    
  done clear
  D)
          Intestine
  done clear
  View Answer play_arrow

• question_answer206) How many pairs of cranial nerves are present in Rabbit?
  A)
   8 pairs                                 
  done clear
  B)
   10 pairs
  done clear
  C)
   12 pairs               
  done clear
  D)
          14 pairs
  done clear
  View Answer play_arrow

• question_answer207) Sensory organs of Ascaris are:
  A)
   papillae                              
  done clear
  B)
   phasmid
  done clear
  C)
   amphids             
  done clear
  D)
          all of the above
  done clear
  View Answer play_arrow

• question_answer208) In which mitosis does not takes place?
  A)
   Muscle cell                        
  done clear
  B)
   Bone cell
  done clear
  C)
   Epithelial cell   
  done clear
  D)
          Nerve cell
  done clear
  View Answer play_arrow

• question_answer209) Pseudopodia is characteristic of following class:
  A)
   Ciliata                                  
  done clear
  B)
   Sporozoa
  done clear
  C)
   Sarcodina          
  done clear
  D)
          Mestigofora
  done clear
  View Answer play_arrow

• question_answer210) Cleavage occurs in:
  A)
   egg                                       
  done clear
  B)
   zygote
  done clear
  C)
   nerve cell          
  done clear
  D)
          haploid cell
  done clear
  View Answer play_arrow

• question_answer211) Excretory organs of Earthworm are:
  A)
   body wall                           
  done clear
  B)
   flame cells
  done clear
  C)
   nephridia           
  done clear
  D)
          kidney
  done clear
  View Answer play_arrow

• question_answer212) If Hydra is divided into many pieces, then:
  A)
   each piece convert into complete Hydra
  done clear
  B)
   only few pieces convert into complete Hydra
  done clear
  C)
   Hydra will be dead
  done clear
  D)
   Hydra will reproduce very fast
  done clear
  View Answer play_arrow

• question_answer213) Male Cockroach is differ from female Cockroach because in this present:
  A)
   anal cirrae                         
  done clear
  B)
   anal styles
  done clear
  C)
   antennae          
  done clear
  D)
          mandible
  done clear
  View Answer play_arrow

• question_answer214) Who controls the concentration of calcium?
  A)
   Hypothalamus
  done clear
  B)
   Thyroid
  done clear
  C)
   Pituitary gland
  done clear
  D)
   Thyroid and parathyroid
  done clear
  View Answer play_arrow

• question_answer215) A cell in take external substances through:
  A)
   phagocytesis   
  done clear
  B)
   pinocytosis
  done clear
  C)
   endocytosis      
  done clear
  D)
          all of the above
  done clear
  View Answer play_arrow

• question_answer216) Function of golgi body is:
  A)
   synthesis of protein
  done clear
  B)
   synthesis of lipid
  done clear
  C)
   synthesis of carbohydrate
  done clear
  D)
   oxidative phosphorylation
  done clear
  View Answer play_arrow

• question_answer217) Which is not carbohydrate?
  A)
   Cellulose                            
  done clear
  B)
   Glucose
  done clear
  C)
   Starch                 
  done clear
  D)
          Wax
  done clear
  View Answer play_arrow

• question_answer218) Formation of glycogen from glucose is called:
  A)
   glycolysis                           
  done clear
  B)
   Krebs cycle
  done clear
  C)
   citric acid cycle
  done clear
  D)
   glycogcnesis
  done clear
  View Answer play_arrow

• question_answer219) Nerve cells are present in:
  A)
   Amoeba                             
  done clear
  B)
   Sycon
  done clear
  C)
   Paramecium     
  done clear
  D)
          Hydra
  done clear
  View Answer play_arrow

• question_answer220) Which of the following doesnt spread disease in human?
  A)
   Entamoeba histolytica
  done clear
  B)
   Entamoeba gingiualis
  done clear
  C)
   Entamoeba coli
  done clear
  D)
   Plasniodiimi ovale
  done clear
  View Answer play_arrow

• question_answer221) Number of testis present in Ascaris:
  A)
   one                                      
  done clear
  B)
   two  
  done clear
  C)
   three                   
  done clear
  D)
          four
  done clear
  View Answer play_arrow

• question_answer222) In which part of Cockroach exoskeleton is in vaginated:
  A)
   proctodium                      
  done clear
  B)
   stomodium
  done clear
  C)
   mesenteron                     
  done clear
  D)
   both a and b
  done clear
  View Answer play_arrow

• question_answer223) Which is not present in protein?
  A)
   Carbon                               
  done clear
  B)
   Sulphur
  done clear
  C)
   Nitrogen            
  done clear
  D)
          Phosphorus
  done clear
  View Answer play_arrow

• question_answer224) Following is not present in prokaryocic cell:
  A)
   smooth ER                        
  done clear
  B)
   mitochondria
  done clear
  C)
   golgi body         
  done clear
  D)
          all the above
  done clear
  View Answer play_arrow

• question_answer225) Nucleic acids are made up of:
  A)
   nucleosides                      
  done clear
  B)
   nucleotides
  done clear
  C)
   sugar                   
  done clear
  D)
          amino acid
  done clear
  View Answer play_arrow

• question_answer226) Maximum quantity of iron present in:
  A)
   red blood cells                 
  done clear
  B)
   white blood cells
  done clear
  C)
   bone cells          
  done clear
  D)
          muscle cells
  done clear
  View Answer play_arrow

• question_answer227) Which organ is power house of cell?
  A)
   Nucleus                              
  done clear
  B)
   Mitochondria
  done clear
  C)
   Golgi body                        
  done clear
  D)
   Lysosome
  done clear
  View Answer play_arrow

• question_answer228) Which of the following only one host is present in life cycle?
  A)
   Entamoeba histolytica
  done clear
  B)
   Plasmodium
  done clear
  C)
   Taenia
  done clear
  D)
   Liver fluke
  done clear
  View Answer play_arrow

• question_answer229) By which process, oxidation of pyruvic acid gives \[C{{O}_{2}}\] and \[{{H}_{2}}O\]?
  A)
   Krebs cycle
  done clear
  B)
   Tricarboxylic acid cycle
  done clear
  C)
   Citric acid cycle
  done clear
  D)
   Glycogenesis
  done clear
  View Answer play_arrow

• question_answer230) Living substance of cell is called:
  A)
   cytoplasm
  done clear
  B)
   nucleoplasm
  done clear
  C)
   protoplasm
  done clear
  D)
   mitochondrial liquid
  done clear
  View Answer play_arrow

• question_answer231) Which is not Chordate characteristic?
  A)
   Notochord
  done clear
  B)
   Placenta
  done clear
  C)
   Dorsal tubular nerve chord
  done clear
  D)
   Phryngeal gill slits
  done clear
  View Answer play_arrow

• question_answer232) Red blood corpuscles of Rabbit are :
  A)
   round and biconvex
  done clear
  B)
   oval and biconvex
  done clear
  C)
   round and biconcave
  done clear
  D)
   oval and biconcave
  done clear
  View Answer play_arrow

• question_answer233) Which ions help is blood coagulation?
  A)
  \[{{K}^{+}}\]                                      
  done clear
  B)
  \[C{{a}^{++}}\]
  done clear
  C)
  \[M{{g}^{++}}\]                               
  done clear
  D)
         \[N{{a}^{+}}\]
  done clear
  View Answer play_arrow

• question_answer234) Pancreas secretes;
  A)
   insulin                                 
  done clear
  B)
   glucagon
  done clear
  C)
   digestive enzymes        
  done clear
  D)
   all the above
  done clear
  View Answer play_arrow

• question_answer235) Which of the following is absent in heart of Rabbit?
  A)
   left auricle                         
  done clear
  B)
   left ventricle
  done clear
  C)
   sinus venosus  
  done clear
  D)
          pace maker
  done clear
  View Answer play_arrow

• question_answer236) Glochidium larva presents in :
  A)
   Bivalvia                               
  done clear
  B)
   Gastropoda
  done clear
  C)
   Cephalopoda  
  done clear
  D)
          Arthropoda
  done clear
  View Answer play_arrow

• question_answer237) Retrogressive metamorphosis is present in:
  A)
   Frog                                     
  done clear
  B)
   Rabbit
  done clear
  C)
   Rat                       
  done clear
  D)
          none of the above
  done clear
  View Answer play_arrow

• question_answer238) Choanocytes present in animals of following phylum :
  A)
   Protozoa            
  done clear
  B)
          Porifera
  done clear
  C)
   Coelenterata   
  done clear
  D)
   Ptenophora
  done clear
  View Answer play_arrow

• question_answer239) Non-poisonous snake is :
  A)
   Python                               
  done clear
  B)
   Viper
  done clear
  C)
   Cobra                  
  done clear
  D)
          Krat
  done clear
  View Answer play_arrow

• question_answer240) Arteries which carries blood to diaphragm :
  A)
   cardiac                                
  done clear
  B)
   phrenic
  done clear
  C)
   comary               
  done clear
  D)
          pulmonary
  done clear
  View Answer play_arrow

• question_answer241) Insects egg is:
  A)
   homolecithal   
  done clear
  B)
   mesolecithal
  done clear
  C)
   centerolecithal                
  done clear
  D)
   microlecithal
  done clear
  View Answer play_arrow

• question_answer242) Which hormone is not synthesized in pituitary gland?
  A)
   Growth hormone          
  done clear
  B)
   FSH
  done clear
  C)
   ACTH                   
  done clear
  D)
          Vassoprcssin
  done clear
  View Answer play_arrow

• question_answer243) Structure derived from ectoderm:
  A)
   liver                                     
  done clear
  B)
   muscles
  done clear
  C)
   brain                    
  done clear
  D)
          mesenteries
  done clear
  View Answer play_arrow

• question_answer244) Contraction in pupil of eye is due to:
  A)
   dimlight
  done clear
  B)
   bright light
  done clear
  C)
   darkness
  done clear
  D)
   maximum temperature
  done clear
  View Answer play_arrow

• question_answer245) In which group, notochord is restricted to only anterior region ?
  A)
   Hemichordata 
  done clear
  B)
   Urochordata
  done clear
  C)
   Cephalochordata           
  done clear
  D)
   Chordata
  done clear
  View Answer play_arrow

• question_answer246) How many lobes are present in each cerebral hemisphere?
  A)
   Two                                     
  done clear
  B)
   Four
  done clear
  C)
   Six                                        
  done clear
  D)
   Eight
  done clear
  View Answer play_arrow

• question_answer247) Body cavity if formed by in vagination of:
  A)
   apomere                           
  done clear
  B)
   hypomere
  done clear
  C)
   mcsomere        
  done clear
  D)
          both b and c
  done clear
  View Answer play_arrow

• question_answer248) First flying animals were :
  A)
   Mammals                          
  done clear
  B)
   Birds
  done clear
  C)
   Insects                                
  done clear
  D)
   Reptile
  done clear
  View Answer play_arrow

• question_answer249) Food of tadpole (Frog) is :
  A)
   aquatic animals
  done clear
  B)
          aquatic insects
  done clear
  C)
   eggs of fishes                  
  done clear
  D)
   aquatic vegetation
  done clear
  View Answer play_arrow

• question_answer250) Cerebral malaria is spread by following :
  A)
   Plasmodium uivax
  done clear
  B)
   Plasmodium ouale
  done clear
  C)
   Plasmodium Falciparum
  done clear
  D)
   Plasmodium malariae
  done clear
  View Answer play_arrow

• question_answer251) In Rabbit, exoskeleton is in the form of :
  A)
   hair                                      
  done clear
  B)
   nails
  done clear
  C)
   hoof                    
  done clear
  D)
          both a and b
  done clear
  View Answer play_arrow

• question_answer252) Polyp stage is not present in :
  A)
   Hydrozoa                           
  done clear
  B)
   Scyphozoa
  done clear
  C)
   Anthozoa          
  done clear
  D)
          Calcarea
  done clear
  View Answer play_arrow

• question_answer253) Both cerebral hemisphere are joined by transverse septum which is made up of white matter fibres are called :
  A)
   corpus callosum              
  done clear
  B)
   corpus albicans
  done clear
  C)
   corpus spongiossum     
  done clear
  D)
   corpus stratum
  done clear
  View Answer play_arrow

• question_answer254) Archenter one is covered by :
  A)
   ectoderm                          
  done clear
  B)
   endoderm
  done clear
  C)
   mesoderm        
  done clear
  D)
          both b and c
  done clear
  View Answer play_arrow

• question_answer255) Structure formed due to cleavage is:
  A)
   zygote                                
  done clear
  B)
   morula
  done clear
  C)
   gastrula              
  done clear
  D)
          neurulla
  done clear
  View Answer play_arrow

• question_answer256) Function of chloragogen cells of Earthworm is:
  A)
   digestion                           
  done clear
  B)
   locomotion
  done clear
  C)
   excretion                           
  done clear
  D)
   respiration
  done clear
  View Answer play_arrow

• question_answer257) Hydrolytic enzymes are present in :
  A)
   lysosome                           
  done clear
  B)
   mesosomes
  done clear
  C)
   chondriosome
  done clear
  D)
          endoplasmic reticulum
  done clear
  View Answer play_arrow

• question_answer258) Which is nut protein ?
  A)
   Actin                                    
  done clear
  B)
   Myosine
  done clear
  C)
   Albumin                             
  done clear
  D)
   Haeme
  done clear
  View Answer play_arrow

• question_answer259) In which part of Cockroach both exoskeleton and endoskeleton present?
  A)
   Mead                                  
  done clear
  B)
   Thorax
  done clear
  C)
   Abdomen                          
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer260) Effective organ for intake of food in Earthworm is:
  A)
   mouth                                
  done clear
  B)
   buccal cavity
  done clear
  C)
   pharynx             
  done clear
  D)
          stomach
  done clear
  View Answer play_arrow

• question_answer261) If nucleus of Amoeba is degenerated, what will be the effect?
  A)
   Divide immediately       
  done clear
  B)
   Dead after some time  
  done clear
  C)
   No change
  done clear
  D)
   Rate of growth will be fast
  done clear
  View Answer play_arrow

• question_answer262) Infant/juvenile stage of Cockroach is called:
  A)
   maggot                               
  done clear
  B)
   nymph
  done clear
  C)
   zoea                    
  done clear
  D)
          grub
  done clear
  View Answer play_arrow

• question_answer263) Dysentery disease spread by :
  A)
   Amoeba
  done clear
  B)
   Entamoeba histolytica
  done clear
  C)
   Plasmodium
  done clear
  D)
   Entamoeba coli
  done clear
  View Answer play_arrow

• question_answer264) Anaema disease is due to the lack of :
  A)
   calcium                               
  done clear
  B)
   copper
  done clear
  C)
   iron                      
  done clear
  D)
          zinc
  done clear
  View Answer play_arrow

• question_answer265) Protein synthesis takes place in :
  A)
   golgi body
  done clear
  B)
   plasma membrane
  done clear
  C)
   smooth endoplasmic reticulum
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer266) Quantity of nucleic acid present in cell is approximately :
  A)
   2%                                        
  done clear
  B)
   5%  
  done clear
  C)
   10%                      
  done clear
  D)
          15%
  done clear
  View Answer play_arrow

• question_answer267) Pseudopodia formed, when:
  A)
   interchange of sol-gel state
  done clear
  B)
   Amoeba comes in contact with cold water
  done clear
  C)
    Amoeba comes in contact with hot water
  done clear
  D)
   Amoeba comes in contact with food
  done clear
  View Answer play_arrow

• question_answer268) Sperms of Hydra formed from :
  A)
   interstitial cells
  done clear
  B)
   epithelial muscular layer
  done clear
  C)
   nerve cells
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer269) In which part of Earthworm setae are absent ?
  A)
   in prostomium
  done clear
  B)
   in prostomium and clitellum
  done clear
  C)
   clitellum region
  done clear
  D)
   clitellum/ first and last segment
  done clear
  View Answer play_arrow

• question_answer270) Why does the colour of blood is red in Earthworm?
  A)
   Due to intracellular haemoglobin
  done clear
  B)
   Due to intercellular haemoglobin
  done clear
  C)
   Due to red blood corpuscles
  done clear
  D)
   Due to white blood corpuscles
  done clear
  View Answer play_arrow

• question_answer271) Eggs in which the amount of yolk is very minute, are called :
  A)
   alecithal                             
  done clear
  B)
   microlecithal
  done clear
  C)
   mesolecithal    
  done clear
  D)
   telolecithal
  done clear
  View Answer play_arrow

• question_answer272) Food of Hydra is :
  A)
   aquatic plants                  
  done clear
  B)
   aquatic animals
  done clear
  C)
   algae and insects
  done clear
  D)
   small fishes
  done clear
  View Answer play_arrow

• question_answer273) Excretory substance of Amoeba is:
  A)
   ammonia                           
  done clear
  B)
   urea
  done clear
  C)
   uric acid              
  done clear
  D)
          guanine
  done clear
  View Answer play_arrow

• question_answer274) Which is not covered by external limiting line boundary?
  A)
   Ribosome                          
  done clear
  B)
   Centrosome
  done clear
  C)
   Lysosome          
  done clear
  D)
          Spindle
  done clear
  View Answer play_arrow

• question_answer275) By which process glucose is converted into \[C{{O}_{2}}\] and \[{{H}_{2}}O\]?
  A)
   Glycolysis
  done clear
  B)
   Krebs cycle
  done clear
  C)
   Pentose phosphate shunt
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer276) Calcium is necessary for:
  A)
   growth of bone and teeth
  done clear
  B)
   muscle contraction
  done clear
  C)
   blood coagulation
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer277) Recapitulation theory was established by:
  A)
   Muller                                 
  done clear
  B)
   Von Baer
  done clear
  C)
   Haeckel              
  done clear
  D)
          both a and c
  done clear
  View Answer play_arrow

• question_answer278) Which part of Cockroach wings are not present ?
  A)
   Prothorax                          
  done clear
  B)
   Mesothorax
  done clear
  C)
   Metathorax      
  done clear
  D)
          None of above
  done clear
  View Answer play_arrow

• question_answer279) Entamoeba histolytion is different from Amoeba, because it does not possess:
  A)
   food vacuole                    
  done clear
  B)
   contractile vacuole
  done clear
  C)
   nucleus       
  done clear
  D)
   nuclear membrane
  done clear
  View Answer play_arrow

• question_answer280) Neoteny is present in :
  A)
   Hyla      
  done clear
  B)
                          Tadpole
  done clear
  C)
   Axolotal             
  done clear
  D)
          Salamander
  done clear
  View Answer play_arrow

• question_answer281) Prene glands are present in :
  A)
   Amphibia           
  done clear
  B)
          Reptiles
  done clear
  C)
   Birds                    
  done clear
  D)
          Mammals
  done clear
  View Answer play_arrow

• question_answer282) In which endoskeleton is made up of cartilage?
  A)
   Dipnoi                                 
  done clear
  B)
   Mollusca
  done clear
  C)
   Elasmobranchii                
  done clear
  D)
   Bony fishes
  done clear
  View Answer play_arrow

• question_answer283) What is present in Cestoda class?
  A)
   Absence of alimentary canal
  done clear
  B)
   Metamerically segmented body
  done clear
  C)
   Suckers and hook present
  done clear
  D)
   All the above
  done clear
  View Answer play_arrow

• question_answer284) DNA is also present in following:
  A)
   golgi body                         
  done clear
  B)
   lysosome
  done clear
  C)
   mitochondria  
  done clear
  D)
          ribosome
  done clear
  View Answer play_arrow

• question_answer285) Acrosome of sperm is formed from:
  A)
   nucleus                              
  done clear
  B)
   mitochondria
  done clear
  C)
   ribosome           
  done clear
  D)
          golgi body
  done clear
  View Answer play_arrow

• question_answer286) Respiratory centre for controlling respiration is situated in:
  A)
   medulla oblongata        
  done clear
  B)
   cerebellum
  done clear
  C)
   vagus nerve
  done clear
  D)
   cerebral hemisphere
  done clear
  View Answer play_arrow

• question_answer287) Sea horse is an example of:
  A)
   Mammalia class              
  done clear
  B)
   Aves class
  done clear
  C)
   Pisces class       
  done clear
  D)
          Reptile class
  done clear
  View Answer play_arrow

• question_answer288) Which animal is not insect?
  A)
   Ticks                                    
  done clear
  B)
   Honey bee
  done clear
  C)
   Beetal                 
  done clear
  D)
          Wasps
  done clear
  View Answer play_arrow

• question_answer289) Archaeopteryx possess the characteristic of following :
  A)
   Reptiles                              
  done clear
  B)
   Birds
  done clear
  C)
   Amphibia and Reptiles
  done clear
  D)
   Reptiles and Birds
  done clear
  View Answer play_arrow

• question_answer290) In which phylum, cilia are completely absent?
  A)
   Annelida            
  done clear
  B)
          Mollusca
  done clear
  C)
   Arthropoda      
  done clear
  D)
          Porifera
  done clear
  View Answer play_arrow

• question_answer291) Hypothalamus is controlling centre of:
  A)
   hunger and thirst           
  done clear
  B)
   temperature
  done clear
  C)
   sleep                   
  done clear
  D)
          all of the above
  done clear
  View Answer play_arrow

• question_answer292) Only one primary spermatocyte formed :
  A)
   one sperm                        
  done clear
  B)
   two sperms
  done clear
  C)
   three sperms   
  done clear
  D)
          four sperms
  done clear
  View Answer play_arrow

• question_answer293) Which organ absorbs maximum quantity of iodine?
  A)
   Thyroid                               
  done clear
  B)
   Liver
  done clear
  C)
   Stomach            
  done clear
  D)
          Pancreas
  done clear
  View Answer play_arrow

• question_answer294) In grey matter following is present:
  A)
   cyton, axon, dendrites
  done clear
  B)
   dendrites
  done clear
  C)
   axon                    
  done clear
  D)
          none of the above
  done clear
  View Answer play_arrow

• question_answer295) Kangaroo is member of following order:
  A)
   primate              
  done clear
  B)
          chiroptera
  done clear
  C)
   marsupelia        
  done clear
  D)
          monotremata
  done clear
  View Answer play_arrow

• question_answer296) Hydra is:
  A)
   triploblastic                       
  done clear
  B)
   diploblastic
  done clear
  C)
   asymmetric     
  done clear
  D)
          bisymmetric
  done clear
  View Answer play_arrow

• question_answer297) Non-stripped muscles are present:
  A)
   in arteries                          
  done clear
  B)
   in veins
  done clear
  C)
   in urinary bladder          
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer298) Most useful organ of Rabbit is:
  A)
   adrenal medulla             
  done clear
  B)
   testis
  done clear
  C)
   ovary                   
  done clear
  D)
          adrenal cortex
  done clear
  View Answer play_arrow

• question_answer299) In which animal poison gland is present?
  A)
   Male Platypus                 
  done clear
  B)
   Female Lizard
  done clear
  C)
   Male Lizard                       
  done clear
  D)
   Frog
  done clear
  View Answer play_arrow

• question_answer300) Coelom of Ascaris is called:
  A)
   schizocoelom  
  done clear
  B)
   enterocoelom
  done clear
  C)
   pseudocoelom  
  done clear
  D)
          acoelom
  done clear
  View Answer play_arrow

• question_answer301) The biggest herbarium of India is situated in:
  A)
   Dehradun                          
  done clear
  B)
   Lucknow            
  done clear
  C)
          Delhi                    
  done clear
  D)
          Calcutta
  done clear
  View Answer play_arrow

• question_answer302) What is the reason for red colour of snow in snowy region?
  A)
   Chlamydomonas nivalis
  done clear
  B)
   Chlamydomonas yellowstonensis
  done clear
  C)
   Chlorella
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer303) Food, habitat and economic importance of plants are studied in:
  A)
   Genetics            
  done clear
  B)
          Microbiology    
  done clear
  C)
          Phycology         
  done clear
  D)
          Economic botany
  done clear
  View Answer play_arrow

• question_answer304) The synthesis of florigen occurs in:
  A)
   root                     
  done clear
  B)
          leaf      
  done clear
  C)
   branch                
  done clear
  D)
          stem
  done clear
  View Answer play_arrow

• question_answer305) The functional unit of chlorophyll is:
  A)
   stroma                
  done clear
  B)
          grana
  done clear
  C)
   quantosome    
  done clear
  D)
          oxysome
  done clear
  View Answer play_arrow

• question_answer306) Chiasmatas appear in which of the following phase?
  A)
   Zygotene           
  done clear
  B)
          Diplotene
  done clear
  C)
   Pachytene        
  done clear
  D)
          Diakinesis
  done clear
  View Answer play_arrow

• question_answer307) Mutations are:
  A)
   mostly useful  
  done clear
  B)
          harmful
  done clear
  C)
   always useful  
  done clear
  D)
          sometimes useful
  done clear
  View Answer play_arrow

• question_answer308) Which of the following accept \[C{{O}_{2}}\] in photosynthesis ?
  A)
   RuDP                                   
  done clear
  B)
   ATP 
  done clear
  C)
   ADP                     
  done clear
  D)
          PGA
  done clear
  View Answer play_arrow

• question_answer309) The value of R. Q. in organic acid will be:
  A)
   one                      
  done clear
  B)
          less than one
  done clear
  C)
   more than one 
  done clear
  D)
          none of the above
  done clear
  View Answer play_arrow

• question_answer310) The movement of Mimosa pudica is :
  A)
   seismonastic   
  done clear
  B)
          chemotrophic
  done clear
  C)
   geotrophic          
  done clear
  D)
          none of the above
  done clear
  View Answer play_arrow

• question_answer311) Who proposed the chromosomal theory of in heritance?
  A)
   Bateson
  done clear
  B)
   Mendel
  done clear
  C)
   Robert Hook
  done clear
  D)
   W.S. Sutton and Boveri
  done clear
  View Answer play_arrow

• question_answer312) Double helical structure of DNA was proposed by:
  A)
   Robert Brown                  
  done clear
  B)
   Watson and Crick
  done clear
  C)
   H.G. Khorana  
  done clear
  D)
          Sutton and Boveri
  done clear
  View Answer play_arrow

• question_answer313) Ribosome is consist of:
  A)
   RNA and protein
  done clear
  B)
   DNA and protein
  done clear
  C)
   DNA and RNA
  done clear
  D)
   DNA, RNA and protein
  done clear
  View Answer play_arrow

• question_answer314) The reserve food material in fungi is:
  A)
   starch                                  
  done clear
  B)
   protein
  done clear
  C)
   fat                        
  done clear
  D)
          glycogen
  done clear
  View Answer play_arrow

• question_answer315) Artificial synthesis of gene was first time done by :
  A)
   H. G. Khorana 
  done clear
  B)
   Hertwig
  done clear
  C)
   Strassburger   
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer316) The main plant body of bryophyta is:
  A)
   gametophytic                  
  done clear
  B)
   sporophytic
  done clear
  C)
   thallus                 
  done clear
  D)
          none of the above
  done clear
  View Answer play_arrow

• question_answer317) Who proposed the central dogma?
  A)
   Crick     
  done clear
  B)
                          Khorana
  done clear
  C)
   Nirenberg         
  done clear
  D)
          None of these
  done clear
  View Answer play_arrow

• question_answer318) Product of \[C{{O}_{2}}\] reduction is:
  A)
   pyruvic acid                      
  done clear
  B)
   citric acid
  done clear
  C)
   tri carboxylic acid
  done clear
  D)
   glucose
  done clear
  View Answer play_arrow

• question_answer319) Embryo formation, without fertilization is called:
  A)
   apogamy                           
  done clear
  B)
   parthenogenesis
  done clear
  C)
   apomixis            
  done clear
  D)
          none of the above
  done clear
  View Answer play_arrow

• question_answer320) Cotton fibre is made up if:
  A)
   cellulose                            
  done clear
  B)
   protein
  done clear
  C)
   fat                        
  done clear
  D)
          starch
  done clear
  View Answer play_arrow

• question_answer321) Calotropis and Capparis ecologically grouped under:
  A)
   hydrophytes                    
  done clear
  B)
   xerophytes
  done clear
  C)
   mesophytes    
  done clear
  D)
          halophytes
  done clear
  View Answer play_arrow

• question_answer322) During \[{{C}_{4}}\] pathway, first \[C{{O}_{2}}\] fixation takes place in chloroplast of:
  A)
   guard cells                         
  done clear
  B)
   mesophyll cells
  done clear
  C)
   spongy parenchyma     
  done clear
  D)
   bundle sheath cells
  done clear
  View Answer play_arrow

• question_answer323) Who proposed the histogen theory?
  A)
   Schmit                                
  done clear
  B)
   Hanstein
  done clear
  C)
   Nagelli                
  done clear
  D)
          Mankey
  done clear
  View Answer play_arrow

• question_answer324) Primary tissuess are formed from:
  A)
   apical and lateral meristem
  done clear
  B)
   lateral meristem
  done clear
  C)
   intercalary and apical meristem
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer325) Division in anthers is:
  A)
   amitosis                             
  done clear
  B)
   meiosis
  done clear
  C)
   mitosis                
  done clear
  D)
          budding
  done clear
  View Answer play_arrow

• question_answer326) Purine bases are:
  A)
   A and T                               
  done clear
  B)
   A and C
  done clear
  C)
   A and G              
  done clear
  D)
          T and C
  done clear
  View Answer play_arrow

• question_answer327) When a well irrigated herb plants stem is cut, then xylem sap comes out due to the:
  A)
   wall pressure  
  done clear
  B)
   root pressure
  done clear
  C)
   osmatic pressure
  done clear
  D)
         endosmosis
  done clear
  View Answer play_arrow

• question_answer328) Velamen tissue is the characteristic feature of:
  A)
   parasitic plants                
  done clear
  B)
   epiphytic plants
  done clear
  C)
   saprophytic plants         
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer329) The plant, which does not follow Mendels law of dominance is:
  A)
   Mirabilis jalapa               
  done clear
  B)
   Pea
  done clear
  C)
   Gram                   
  done clear
  D)
          Chandni
  done clear
  View Answer play_arrow

• question_answer330) Who discovered thylakoid?
  A)
   Mankey                             
  done clear
  B)
   Nagelli
  done clear
  C)
   Hanstein            
  done clear
  D)
          Schmit
  done clear
  View Answer play_arrow

• question_answer331) Chipko movement was started from:
  A)
   Gwalior-(M.P.)
  done clear
  B)
   GarhwaI-(Uttranchal)
  done clear
  C)
   Jodhpur-(Rajasthan)
  done clear
  D)
   Alwar-(Rajasthan)
  done clear
  View Answer play_arrow

• question_answer332) 9 : 3 : 3 : 1 follows the Mendels law of:
  A)
   unit characters
  done clear
  B)
   dominance
  done clear
  C)
   independent assortment
  done clear
  D)
   purity of gametes
  done clear
  View Answer play_arrow

• question_answer333) Cross between \[{{F}_{1}}\] generation and pure recessive parent is called:
  A)
   test cross                           
  done clear
  B)
   back cross
  done clear
  C)
   monohybrid cross          
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer334) Genome is the set of chromosomes which remains:
  A)
   diploid                                
  done clear
  B)
   haploid
  done clear
  C)
   triploid                
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer335) The position of stomata in Vallisneria is:
  A)
   adaxial or abaxial            
  done clear
  B)
   abaxial or adaxial
  done clear
  C)
   amphistomatal
  done clear
  D)
          absent
  done clear
  View Answer play_arrow

• question_answer336) Usually root and stomata are absent in:
  A)
   hydrophytic plants        
  done clear
  B)
   xerophytic plants
  done clear
  C)
   mesophytic plants
  done clear
  D)
         halophytic plants
  done clear
  View Answer play_arrow

• question_answer337) Mendels laws were rediscovered in:
  A)
   1890     
  done clear
  B)
                          1900
  done clear
  C)
   1800                     
  done clear
  D)
          1905
  done clear
  View Answer play_arrow

• question_answer338) Which of the following are nonrenewable resources?
  A)
   Minerals and fossils      
  done clear
  B)
   Minerals and water
  done clear
  C)
   Minerals and soil
  done clear
  D)
         None of the above
  done clear
  View Answer play_arrow

• question_answer339) In pond ecosystem, the maximum number is represented by;
  A)
   producers                         
  done clear
  B)
   consumers
  done clear
  C)
   decomposers   
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer340) If decomposers are removed from an ecosystem then which of the following will affected?
  A)
   Producers                         
  done clear
  B)
   Biosphere
  done clear
  C)
   Bio-geochemical cycle  
  done clear
  D)
   Consumers
  done clear
  View Answer play_arrow

• question_answer341) Tuberculosis (T.B.) causing bacterium is:
  A)
   Bacillus coli
  done clear
  B)
   Mycobacterium tuberculosis
  done clear
  C)
   Vibrio cholera
  done clear
  D)
   E. coli
  done clear
  View Answer play_arrow

• question_answer342) Quinine is obtained from which part of Cinchona plant?
  A)
   Bark                                     
  done clear
  B)
   Leaf
  done clear
  C)
   Root                    
  done clear
  D)
          Flower
  done clear
  View Answer play_arrow

• question_answer343) Commercial cork is obtained from:
  A)
   Quercus suber                 
  done clear
  B)
   Peepal
  done clear
  C)
   Pinus                   
  done clear
  D)
          Mango
  done clear
  View Answer play_arrow

• question_answer344) Which of the following medicine is used to reduce the blood pressure?
  A)
   Papavaerin                       
  done clear
  B)
   Reserpine
  done clear
  C)
   Gugal                  
  done clear
  D)
          Gum
  done clear
  View Answer play_arrow

• question_answer345) What is the relationship between food web and stability of an ecosystem?
  A)
   If higher the complexity of web the stability will be high
  done clear
  B)
   Simpler the web/ higher the stability of system.
  done clear
  C)
   More the webs, lower stability
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer346) Opium is obtained from:
  A)
   root                                     
  done clear
  B)
   stem
  done clear
  C)
   immature fruit 
  done clear
  D)
          leaf
  done clear
  View Answer play_arrow

• question_answer347) The main source of energy in alt organisms is:
  A)
   water                                  
  done clear
  B)
   sun light
  done clear
  C)
   nuclear energy                
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer348) Whole inflorescence is edible in:
  A)
   Cauliflower                       
  done clear
  B)
   Tomato
  done clear
  C)
   Brinjal                 
  done clear
  D)
          Ladys finger
  done clear
  View Answer play_arrow

• question_answer349) Annual rings formed in:
  A)
   monocot stem  
  done clear
  B)
   monocot root
  done clear
  C)
   dicot stem         
  done clear
  D)
   dicot root
  done clear
  View Answer play_arrow

• question_answer350) Pulses belongs to family:
  A)
   Malvaceae                        
  done clear
  B)
   Leguminosae
  done clear
  C)
   Cruciferae         
  done clear
  D)
          Solanaceae
  done clear
  View Answer play_arrow

• question_answer351) Genetic code on nucleic acid is represented by:
  A)
   type of nucleic acid
  done clear
  B)
   number of nucleic acid
  done clear
  C)
   linear sequence of nucleic acid
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer352) The relation between DPD, OF and TP is:
  A)
  \[\text{DPD=OP+TP}\] 
  done clear
  B)
          \[\text{DPD+OP-TP}\]
  done clear
  C)
   \[\text{DPD=}\frac{\text{OP}}{\text{TP}}\]       
  done clear
  D)
          none of the above
  done clear
  View Answer play_arrow

• question_answer353) Axile placentation is present in family:
  A)
   Malvaceae and Liliaceae
  done clear
  B)
   Cruciferae
  done clear
  C)
   Cruciferae and Malvaceae
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer354) Monothecous anther is the characteristic of family;
  A)
   Malvaceae                        
  done clear
  B)
   Liliaceae
  done clear
  C)
   Solanaceae       
  done clear
  D)
          Cruciferae
  done clear
  View Answer play_arrow

• question_answer355) The floral formula of family Cruciterae is:
  A)
  \[Ebr\,\oplus \,_{\begin{smallmatrix}  O \\  + \end{smallmatrix}}^{\uparrow }\,{{K}_{2+2}}{{C}_{\times 4}}{{A}_{2+4}}{{G}_{(\underline{2})}}\]
  done clear
  B)
  \[\,\oplus \,_{\begin{smallmatrix}  O \\  + \end{smallmatrix}}^{\uparrow }\,{{K}_{4}}{{C}_{4}}{{A}_{6}}{{G}_{(2)}}\]
  done clear
  C)
  \[\,%\,_{\begin{smallmatrix}  O \\  + \end{smallmatrix}}^{{}}\,{{K}_{6}}{{C}_{5}}{{A}_{7}}{{G}_{(2)}}\]
  done clear
  D)
   \[Ebr\,%\,_{\begin{smallmatrix}  O \\  + \end{smallmatrix}}^{{}}\,{{K}_{4+4}}{{C}_{4}}{{A}_{4+4}}\,{{G}_{(\underline{2})}}\]
  done clear
  View Answer play_arrow

• question_answer356) Sterile stamens are found in:
  A)
   Cassia fistula (amaltas)
  done clear
  B)
   Solanum
  done clear
  C)
   Raphanus sativus          
  done clear
  D)
   Pisum
  done clear
  View Answer play_arrow

• question_answer357) Viviparous reproduction is  the characteristic of:
  A)
   Tinospora                          
  done clear
  B)
   Xanthomonas
  done clear
  C)
   Nitrosomonas  
  done clear
  D)
          Rhizophora
  done clear
  View Answer play_arrow

• question_answer358) The rhizoids of Riccia are:
  A)
   unicellular and unbranched
  done clear
  B)
   unicellular and branched
  done clear
  C)
   multicellular and unbranched
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer359) The gametophytc generation is dominant in:
  A)
   gymnosperm                   
  done clear
  B)
   bryophyte
  done clear
  C)
   angiosperm      
  done clear
  D)
          pteridophyta
  done clear
  View Answer play_arrow

• question_answer360) Bicollateral vascular bundles are the characteristic of family:
  A)
   Malvaceae                        
  done clear
  B)
   Liliaceae
  done clear
  C)
   Cucurbitaceae  
  done clear
  D)
          Leguminoseae
  done clear
  View Answer play_arrow

• question_answer361) Water is not required in the fertilization of which of die following ?
  A)
   Riccia 
  done clear
  B)
                                          Albugo
  done clear
  C)
   Pteridium          
  done clear
  D)
          Ulothrix
  done clear
  View Answer play_arrow

• question_answer362) The male gamete of fem is:
  A)
   aflagellate                         
  done clear
  B)
   uniflagcllate
  done clear
  C)
   biflagellate        
  done clear
  D)
          multiflagellate
  done clear
  View Answer play_arrow

• question_answer363) Hyphae of Albugo are:
  A)
   aseptate and multinucleate
  done clear
  B)
   septate and multinucleate
  done clear
  C)
   aseptate and uninucleate
  done clear
  D)
   septate and multinucleate
  done clear
  View Answer play_arrow

• question_answer364) Cell organelte covered by unit membrane is:                                 
  A)
   ribosome                           
  done clear
  B)
   lysosome     
  done clear
  C)
   mitochondria  
  done clear
  D)
          chloroplast
  done clear
  View Answer play_arrow

• question_answer365) Glycolysis takes place in:               
  A)
   mitochondria  
  done clear
  B)
   cytoplasm      
  done clear
  C)
   chloroplast        
  done clear
  D)
          lysosome      
  done clear
  View Answer play_arrow

• question_answer366) Extra nuclear DNA is found in:         
  A)
   chloroplast                        
  done clear
  B)
   mitochondria   
  done clear
  C)
   both (a) and (b)
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer367) Cohesion theory was proposed by:
  A)
   Dixon and Jolly                
  done clear
  B)
   Boss
  done clear
  C)
   Vadelloveshky 
  done clear
  D)
          Muller
  done clear
  View Answer play_arrow

• question_answer368) Guttation occurs maximum at which time:
  A)
   noon  
  done clear
  B)
                                          morning
  done clear
  C)
   evening              
  done clear
  D)
          night
  done clear
  View Answer play_arrow

• question_answer369) How many nucleus take part in the double fertilization of Capsella?
  A)
   4                                            
  done clear
  B)
   5    
  done clear
  C)
   2                            
  done clear
  D)
          3
  done clear
  View Answer play_arrow

• question_answer370) Symbiotic relation of an alga and fungus is called:
  A)
   Lichen                                 
  done clear
  B)
   Mycorrhiza
  done clear
  C)
   Cuscuta              
  done clear
  D)
          Orchid
  done clear
  View Answer play_arrow

• question_answer371) The father of taxonomy is:
  A)
   Carl Linnaeus                   
  done clear
  B)
   Charles Darwin
  done clear
  C)
   Bentham and Hooker   
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer372) The anthers of Capsella are:
  A)
   haploid    
  done clear
  B)
                          diploid
  done clear
  C)
   triploid                
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer373) Photosynthetic lamellae in bacteria are found in:
  A)
   cytoplasm                         
  done clear
  B)
   chromoplast
  done clear
  C)
   leucoplast         
  done clear
  D)
          none of the above
  done clear
  View Answer play_arrow

• question_answer374) In Ulothrix, the number of chloroplast per cell is;
  A)
   1                                            
  done clear
  B)
   2    
  done clear
  C)
   3                            
  done clear
  D)
          4
  done clear
  View Answer play_arrow

• question_answer375) Unit which shows henditary characters is:
  A)
   neutron                             
  done clear
  B)
   cistron
  done clear
  C)
   operon               
  done clear
  D)
          heptanes
  done clear
  View Answer play_arrow

• question_answer376) The largest botanical garden of world is:
  A)
   Indian botanical garden, Calcutta
  done clear
  B)
   Royal botanical garden, (Kew) England
  done clear
  C)
   Paris botanical garden
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer377) Nodulated roots are found in:
  A)
   Malvaceae                        
  done clear
  B)
   Leguminosae
  done clear
  C)
   Solanaceae       
  done clear
  D)
          Compositae
  done clear
  View Answer play_arrow

• question_answer378) Mineral salt from soil enters into the cell in the form of:
  A)
   salts                                     
  done clear
  B)
   molecules
  done clear
  C)
   ions                      
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer379) Which of the following is not emit \[C{{O}_{2}}\] in the environment?
  A)
   Nuclear energy               
  done clear
  B)
   Oil
  done clear
  C)
   Coal                     
  done clear
  D)
          Gas
  done clear
  View Answer play_arrow

• question_answer380) Which of the following is needed to make soil from sand?
  A)
   Organic matter                
  done clear
  B)
   Soil air
  done clear
  C)
   Soil water          
  done clear
  D)
          None of these
  done clear
  View Answer play_arrow

• question_answer381) Mendels laws were rediscovered by:
  A)
   de Vries in Holland        
  done clear
  B)
   Bateson in England
  done clear
  C)
   Nellson in Sweden
  done clear
  D)
         Linnaeus in England
  done clear
  View Answer play_arrow

• question_answer382) The active nucleus is absent in which of the following cell?
  A)
   Vessel cell                         
  done clear
  B)
   Seive tube
  done clear
  C)
   Tracheid             
  done clear
  D)
          All of the above
  done clear
  View Answer play_arrow

• question_answer383) 50% time of total cell division is taken by:
  A)
   \[{{G}_{1}}^{-}\]phase                                
  done clear
  B)
   S-phase
  done clear
  C)
   \[{{G}_{2}}-\]phase      
  done clear
  D)
          M-phase
  done clear
  View Answer play_arrow

• question_answer384) Selective permeability is the characteristic of:
  A)
   cell wall              
  done clear
  B)
          cell membrane
  done clear
  C)
   cytoplasm         
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer385) Only thallus type plant body is the characteristic of which of the following group?
  A)
   Algae                                   
  done clear
  B)
   Pteridophyta
  done clear
  C)
   Bryophyta         
  done clear
  D)
          Gymnospcrm
  done clear
  View Answer play_arrow

• question_answer386) Respiratory enzymes are found in:
  A)
   mitochondria  
  done clear
  B)
   granum
  done clear
  C)
   chloroplast        
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer387) Oval and eccentric starch granules are present in:
  A)
   Rice                      
  done clear
  B)
          Maize
  done clear
  C)
   Potato                
  done clear
  D)
          Ground nut
  done clear
  View Answer play_arrow

• question_answer388) The antibiotic obtained from Streptomyces griseus is:
  A)
   streptomycin   
  done clear
  B)
          chloromycin
  done clear
  C)
   both (a) and (b)
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer389) MAB is:
  A)
   man and biosphere
  done clear
  B)
   man, antibody and bacteria
  done clear
  C)
   Mayer, Addition, Bisbai
  done clear
  D)
   Man and biology
  done clear
  View Answer play_arrow

• question_answer390) Lichens are the indicator of:
  A)
   water pollution
  done clear
  B)
          air pollution
  done clear
  C)
   soil pollution   
  done clear
  D)
          sound pollution
  done clear
  View Answer play_arrow

• question_answer391) The function of cytokinin is:
  A)
   cell division         
  done clear
  B)
          delayin senescence
  done clear
  C)
   breaking the dormancy
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer392) \[\text{IAA}\] inhibits the growth of:
  A)
   root                     
  done clear
  B)
          leaf
  done clear
  C)
   stem                    
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer393) Lenticels are found in:
  A)
   monocot root  
  done clear
  B)
          monocot stem
  done clear
  C)
   old dicot stem  
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer394) The father of Botany is:
  A)
   Linnaeus            
  done clear
  B)
          Theophrastus
  done clear
  C)
   Bentham           
  done clear
  D)
          Hooker
  done clear
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• question_answer395) Which of the following is male gamete?
  A)
   Androecium     
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  B)
          Anther
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  C)
   Pollen                 
  done clear
  D)
          None of these
  done clear
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• question_answer396) The ovule found in about 80% plants is:
  A)
   orthotropous  
  done clear
  B)
          anatropous
  done clear
  C)
   semi-anatropous
  done clear
  D)
         none of these
  done clear
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• question_answer397) Egg apparatus contains:
  A)
   two antipodals and single egg cell
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  B)
   one antipodal and two egg cells
  done clear
  C)
   one antipodal and three egg cells
  done clear
  D)
   all of the above
  done clear
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• question_answer398) The shape of vascular bundles in monocot is:
  A)
   D                           
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  B)
          H    
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  C)
   Y                            
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  D)
          Z
  done clear
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• question_answer399) Which of the following is absent in gymnosperm?
  A)
   Companion cell
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  B)
          Sieve tube
  done clear
  C)
   Tracheid             
  done clear
  D)
          All of these
  done clear
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• question_answer400) The pyramid which remains up right is:
  A)
   pyramid of biomass      
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  B)
   pyramid of number
  done clear
  C)
   pyramid of energy
  done clear
  D)
   None of the above
  done clear
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