Solved papers for RAJASTHAN PMT Rajasthan - PMT Solved Paper-2003

done Rajasthan - PMT Solved Paper-2003 Total Questions - 300

• question_answer1) Plancks constant has the dimensions of:
  A)
   energy                                
  done clear
  B)
   power
  done clear
  C)
   impulse              
  done clear
  D)
          angular momentum
  done clear
  View Answer play_arrow

• question_answer2) A particle after starting from rest, experiences constant acceleration for 20 sec. If it covers a distance\[{{S}_{1}}\]in first 10 sec, then the distance covered during next 10 sec will be
  A)
   \[{{S}_{1}}\]         
  done clear
  B)
                          \[2{{s}_{1}}\]                   
  done clear
  C)
   \[3{{s}_{1}}\]                   
  done clear
  D)
          \[4{{s}_{1}}\]
  done clear
  View Answer play_arrow

• question_answer3) The magnitudes of sum and difference of two vectors arc same then the angle between them is
  A)
  \[90{}^\circ \]      
  done clear
  B)
                         \[40{}^\circ \]
  done clear
  C)
  \[45{}^\circ \]                   
  done clear
  D)
         \[60{}^\circ \]
  done clear
  View Answer play_arrow

• question_answer4) When two particles each of mass m are dropped  from height h and 2h respectively, then the ratio of their times to reach the ground is
  A)
   \[1:\sqrt{2}\]                   
  done clear
  B)
          \[\sqrt{2}:1\]
  done clear
  C)
   \[1:2\]                 
  done clear
  D)
          \[2:1\]
  done clear
  View Answer play_arrow

• question_answer5) The escape velocity of a body depends upon
  A)
   mass of body
  done clear
  B)
                         mass of earth
  done clear
  C)
   speed of light  
  done clear
  D)
          angle of projection
  done clear
  View Answer play_arrow

• question_answer6) A capacitor of 100 \[\mu F\]and resistance of 100\[\Omega \] are connected in series with an a. c source of 50 Hz. The phase angle between the current and source voltage is:
  A)
   \[{{\tan }^{-1}}(1/\pi )\]     
  done clear
  B)
   \[{{\tan }^{-1}}(1/2\pi )\]
  done clear
  C)
   \[{{\tan }^{-1}}(\pi /2)\]              
  done clear
  D)
          \[{{\tan }^{-1}}(2\pi /2)\]
  done clear
  View Answer play_arrow

• question_answer7) When a horizontal disc is rotated about its vertical axis and sand is dropped on it, then its angular velocity will
  A)
   decrease                           
  done clear
  B)
   increase
  done clear
  C)
   remain constant
  done clear
  D)
   first decrease and then increase
  done clear
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• question_answer8) The wavelength of light in air and some other medium are respectively \[{{\lambda }_{a}}\]and\[{{\lambda }_{m}}..\]The refractive index of medium is:
  A)
   \[{{\lambda }_{a/}}{{\lambda }_{m}}\]                 
  done clear
  B)
          \[{{\lambda }_{m}}/{{\lambda }_{a}}\]
  done clear
  C)
   \[{{\lambda }_{a}}\times {{\lambda }_{m}}\]                     
  done clear
  D)
          None of these
  done clear
  View Answer play_arrow

• question_answer9) A solid sphere is rolling without slipping on a horizontal surface. The ratio of its rotational kinetic energy and translational kinetic energy is:
  A)
   \[\frac{2}{9}\]                                  
  done clear
  B)
   \[\frac{2}{5}\]
  done clear
  C)
   \[\frac{2}{7}\]                  
  done clear
  D)
          \[\frac{7}{2}\]
  done clear
  View Answer play_arrow

• question_answer10) A liquid has only
  A)
   shear modulus                
  done clear
  B)
   Youngs modulus
  done clear
  C)
   bulk modulus   
  done clear
  D)
          All of the above
  done clear
  View Answer play_arrow

• question_answer11) Van der Waals equation for gases is \[\left( P+\frac{a}{{{V}^{2}}} \right)\,(V-b)=RT\] The dimensions of constant a are
  A)
   \[ML{{\,}^{5}}{{T}^{-2}}\]           
  done clear
  B)
          \[ML{{\,}^{4}}{{T}^{-1}}\]
  done clear
  C)
   \[ML{{\,}^{3}}{{T}^{-1}}\]           
  done clear
  D)
          \[ML{{\,}^{5}}{{T}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer12) The velocity of a particle in S.H.M. at displacement y from mean position is (\[a=\]amplitude\[\omega =\] angular frequency)
  A)
   \[\omega \sqrt{{{a}^{2}}+{{y}^{2}}}\]                                   
  done clear
  B)
   \[\omega \sqrt{{{a}^{2}}-{{y}^{2}}}\]
  done clear
  C)
   \[\omega y\]                   
  done clear
  D)
          \[{{\omega }^{2}}({{a}^{2}}-{{y}^{2}})\]
  done clear
  View Answer play_arrow

• question_answer13) Excess pressure in a soap bubble of radius r is proportional to
  A)
   \[\frac{1}{r}\]                                  
  done clear
  B)
   \[\frac{1}{{{r}^{2}}}\]
  done clear
  C)
   \[r\]                     
  done clear
  D)
          \[{{r}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer14) In a thermodynamic process there is no exchange of heat between the system and surroundings. Then the process is
  A)
   isothermal                        
  done clear
  B)
   adiabatic
  done clear
  C)
   isochoric                            
  done clear
  D)
   isobaric
  done clear
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• question_answer15) The ratio of radii of two spheres of same material is 1 : 4, then the ratio of their heat capacities is
  A)
   \[\frac{1}{4}\]                  
  done clear
  B)
          \[\frac{1}{16}\]
  done clear
  C)
   \[\frac{1}{32}\]               
  done clear
  D)
          \[\frac{1}{64}\]
  done clear
  View Answer play_arrow

• question_answer16) If the critical angle for total internal reflection from a medium to vacuum is \[30{}^\circ \], then the speed of light in the medium is
  A)
   \[6\times {{10}^{8}}m/s\]
  done clear
  B)
   \[3\times {{10}^{8}}m/s\]
  done clear
  C)
   \[2\times {{10}^{8}}m/s\]          
  done clear
  D)
          \[1.5\times {{10}^{8}}m/s\]
  done clear
  View Answer play_arrow

• question_answer17) A prism has a refracting angle of \[60{}^\circ \]. If it produces a minimum deviation of \[30{}^\circ \] in an incident ray, the angle of incidence is
  A)
  \[15{}^\circ \]                                   
  done clear
  B)
  \[30{}^\circ \]
  done clear
  C)
  \[45{}^\circ \]                   
  done clear
  D)
         \[60{}^\circ \]
  done clear
  View Answer play_arrow

• question_answer18) A mass of 30 kg is suspended from a spring of spring constant 15 N/m. The time period of vertical oscillations of mass is
  A)
   \[\frac{3\pi }{\sqrt{2}}s\]                            
  done clear
  B)
   \[2\pi \sqrt{2}\,s\]
  done clear
  C)
   \[\pi \sqrt{2}\,s\]           
  done clear
  D)
          \[2\sqrt{2}\,s\]
  done clear
  View Answer play_arrow

• question_answer19) The focal length of objective and eye piece of a telescope are\[{{f}_{0}}\] and\[{{f}_{e}}\] respectively. Then its magnification will be:
  A)
   \[{{f}_{0}}+{{f}_{e}}\]                                  
  done clear
  B)
   \[{{f}_{0}}\times {{f}_{e}}\]
  done clear
  C)
   \[\frac{{{f}_{0}}}{{{f}_{e}}}\]                     
  done clear
  D)
          \[\frac{{{f}_{e}}}{{{f}_{0}}}\]
  done clear
  View Answer play_arrow

• question_answer20) The energy radiated by a black body is directly  proportional to
  A)
   \[{{T}^{2}}\]                                     
  done clear
  B)
   \[{{T}^{-2}}\]
  done clear
  C)
   \[{{T}^{4}}\]                     
  done clear
  D)
          \[T\]
  done clear
  View Answer play_arrow

• question_answer21) Huygens wave theory of light could not explain
  A)
   diffraction                         
  done clear
  B)
   interference
  done clear
  C)
   polarization      
  done clear
  D)
          photoelectric effect
  done clear
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• question_answer22) A thick mirror produces a number of images of an object. The brightest image is
  A)
   first                                      
  done clear
  B)
   second     
  done clear
  C)
   third                    
  done clear
  D)
          last one   
  done clear
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• question_answer23) If the threshold wavelength for sodium is \[5420\,\overset{\text{o}}{\mathop{\text{A}}}\,,\] then the work function a sodium is
  A)
   4.58 eV                               
  done clear
  B)
   2.28 eV
  done clear
  C)
   1.14 eV               
  done clear
  D)
          0.23 eV
  done clear
  View Answer play_arrow

• question_answer24) When a diode shows saturation current its dynamical plate resistance will be
  A)
   zero                     
  done clear
  B)
          infinity    
  done clear
  C)
   indeterminate
  done clear
  D)
          variable
  done clear
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• question_answer25) The wavelength associated  with an electron accelerated through a potential difference of 100V is nearly
  A)
   \[100\,\overset{\text{o}}{\mathop{\text{A}}}\,\]                          
  done clear
  B)
   \[123\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
   \[1.23\,\overset{\text{o}}{\mathop{\text{A}}}\,\]         
  done clear
  D)
          \[0.123\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer26) The equation of motion of a progressive wave is y = 0.3 sin(314 t-1.57x) where and y are in metre and t is in second. The velocity of wave is
  A)
   100 m/s              
  done clear
  B)
          200 m/s
  done clear
  C)
   400 m/s              
  done clear
  D)
          5 mm/s
  done clear
  View Answer play_arrow

• question_answer27) The minimum orbital angular momentum of the electron in hydrogen atom is
  A)
   \[h\]                    
  done clear
  B)
          \[h/2\]
  done clear
  C)
   \[h/2\pi \]         
  done clear
  D)
          \[h/\pi \]
  done clear
  View Answer play_arrow

• question_answer28) The energy of a hydrogen-like atom in its ground state is -54.4 eV. It may be
  A)
   hydrogen          
  done clear
  B)
          deuterium
  done clear
  C)
   helium                
  done clear
  D)
          lithium
  done clear
  View Answer play_arrow

• question_answer29) A magnetic field can be produced by
  A)
   a moving charge
  done clear
  B)
   a changing electric field
  done clear
  C)
   a stationary charge
  done clear
  D)
   both (a) and (b)
  done clear
  View Answer play_arrow

• question_answer30) X-rays incident on a metal
  A)
   exert a force on it
  done clear
  B)
   transfers energy to it
  done clear
  C)
   transfers momentum to it
  done clear
  D)
   All of the above
  done clear
  View Answer play_arrow

• question_answer31) The binding energy of the deuterium is L 2.23 MeV. The mass defect in amu is
  A)
   0.0024                                 
  done clear
  B)
   0.0012
  done clear
  C)
   2.23                      
  done clear
  D)
          0.024
  done clear
  View Answer play_arrow

• question_answer32) An \[\text{-}\]particle is bombarded on \[{{N}^{14}}\]. As a result a \[{{O}^{17}}\]-nucleus is formed and a particle X is emitted. The particle X is
  A)
   neutron                             
  done clear
  B)
   proton
  done clear
  C)
   electron             
  done clear
  D)
          positron
  done clear
  View Answer play_arrow

• question_answer33) In a laser tube all the photons
  A)
   have same wavelength
  done clear
  B)
   have same energy
  done clear
  C)
   move in same direction
  done clear
  D)
   move with same speed.
  done clear
  View Answer play_arrow

• question_answer34) Regarding a semi-conductor which one of the following is wrong?
  A)
   There are no free electrons at 0 K
  done clear
  B)
   There are no free electrons at room temperature
  done clear
  C)
   The number of free electrons increases with rise of temperature
  done clear
  D)
   The charge carriers are electrons and holes.
  done clear
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• question_answer35) Transformers are used in
  A)
   DC circuits only
  done clear
  B)
   AC circuits only
  done clear
  C)
   in both (a) and (b)
  done clear
  D)
   neither in (a) nor in (b).
  done clear
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• question_answer36) An organ pipe open at both ends contains
  A)
   longitudinal stationary waves
  done clear
  B)
   longitudinal progressive waves
  done clear
  C)
   transverse stationary waves
  done clear
  D)
   transverse progressive waves
  done clear
  View Answer play_arrow

• question_answer37) Which one of the following acts as a neutron absorber in a nuclear reactor?
  A)
   Cd-rod                                
  done clear
  B)
   Heavy water \[({{D}_{2}}O)\]
  done clear
  C)
   Graphite            
  done clear
  D)
          Distilled water \[({{H}_{2}}O)\]
  done clear
  View Answer play_arrow

• question_answer38) Mass-energy equation\[E=m{{c}^{2}}\] was given
  A)
   Newton                             
  done clear
  B)
   Kepler
  done clear
  C)
   Einstein              
  done clear
  D)
          Millikan
  done clear
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• question_answer39) For changing an ammeter into a voltmeter, we should connect
  A)
   low resistance in series
  done clear
  B)
   low resistance in parallel
  done clear
  C)
   high resistance in series
  done clear
  D)
   high resistance in parallel
  done clear
  View Answer play_arrow

• question_answer40) The value of R in gas equation \[PV=nRT\] is
  A)
   universal constant
  done clear
  B)
   depends on number of moles n
  done clear
  C)
   4.2 J/mole K
  done clear
  D)
   depends on nature of gas
  done clear
  View Answer play_arrow

• question_answer41) The penetrating power is minimum for
  A)
   \[\text{-}\]rays                               
  done clear
  B)
   \[\text{-}\]rays
  done clear
  C)
   \[\text{Y-}\]rays             
  done clear
  D)
          \[\text{X-}\]rays
  done clear
  View Answer play_arrow

• question_answer42) The breaking stress of a wire depends upon
  A)
   material of wire
  done clear
  B)
   length of wire
  done clear
  C)
   radius of wire
  done clear
  D)
   shape of cross-section
  done clear
  View Answer play_arrow

• question_answer43) Water rises in a vertical capillary tube upto a length of 10 cm. If the tube is inclined at \[45{}^\circ \], the length of water column risen in the tube will be
  A)
   \[10\,cm\]                         
  done clear
  B)
   \[10\,\sqrt{2}\,cm\]
  done clear
  C)
   \[5\,\sqrt{2}\,cm\]        
  done clear
  D)
          \[20\,cm\]
  done clear
  View Answer play_arrow

• question_answer44) The magnetic field at the centre of semi-circular wire carrying current \[i\] is
  A)
   \[\frac{{{\mu }_{0}}i}{2r}\]                                         
  done clear
  B)
   \[\frac{{{\mu }_{0}}i}{4r}\]
  done clear
  C)
   \[\frac{{{\mu }_{0}}i}{r}\]           
  done clear
  D)
          \[\frac{{{\mu }_{0}}i}{2\pi r}\]
  done clear
  View Answer play_arrow

• question_answer45) If a wire of resistance R is stretched to double of its length, then the new resistance will be
  A)
   \[\frac{R}{2}\]                                 
  done clear
  B)
   \[2R\]
  done clear
  C)
   \[4R\]                  
  done clear
  D)
          \[16R\]
  done clear
  View Answer play_arrow

• question_answer46) If currents in two parallel wires flow in opposite directions, the force between the wires will be
  A)
   attractive     
  done clear
  B)
   repulsive
  done clear
  C)
   zero
  done clear
  D)
   attractive or repulsive depending on the material of wires.
  done clear
  View Answer play_arrow

• question_answer47) The electric field and potential inside a hollow sphere of radius R and uniformly charged with charge q is
  A)
   \[0,0\]                                 
  done clear
  B)
   \[0,\frac{1}{4\pi {{\varepsilon }_{0}}}\frac{q}{R}\]
  done clear
  C)
   \[\frac{1}{4\pi {{\varepsilon }_{0}}}\frac{q}{{{R}^{2}}}\frac{1}{4\pi {{\varepsilon }_{0}}}\frac{q}{R}\]       
  done clear
  D)
   \[\frac{1}{4\pi {{\varepsilon }_{0}}}\frac{q}{{{R}^{2}}}0\]
  done clear
  View Answer play_arrow

• question_answer48) If a glass rod is immersed in a liquid of same refractive index, then it will appear
  A)
   bent                                    
  done clear
  B)
   longer
  done clear
  C)
   shorter               
  done clear
  D)
          invisible
  done clear
  View Answer play_arrow

• question_answer49) Two charges of magnitude\[-q\]and\[+4q\] are placed 1 cm apart. The distance between the point on the line joining and point at which the electric field is zero (with respect to\[-q\]), is
  A)
   1 cm                                     
  done clear
  B)
   2 cm
  done clear
  C)
   3cm                      
  done clear
  D)
          5cm
  done clear
  View Answer play_arrow

• question_answer50) A capacitor is charged by a battery and the charging battery is disconnected and a dielectric slab is inserted in it. Then for the capacitor
  A)
   charge remains constant
  done clear
  B)
   charge increases
  done clear
  C)
   potential difference remains constant
  done clear
  D)
   potential difference increases
  done clear
  View Answer play_arrow

• question_answer51) The dimensional formula of constant a in van der Waals gas equation \[\left( p+\frac{a}{{{V}^{2}}} \right)\,(V-b)\,=RT\] is:
  A)
   \[[M{{L}^{3}}{{T}^{-2}}]\]                           
  done clear
  B)
   \[[M{{L}^{5}}{{T}^{-2}}]\]
  done clear
  C)
   \[[M{{L}^{2}}{{T}^{-1}}]\]           
  done clear
  D)
          \[[M{{L}^{2}}{{T}^{-5}}]\]
  done clear
  View Answer play_arrow

• question_answer52) The angle of projection for which the maximum height and range of the projectile are same is
  A)
   \[{{\tan }^{-1}}(2)\]                                       
  done clear
  B)
   \[{{\tan }^{-1}}(4)\]
  done clear
  C)
   \[{{\tan }^{-1}}\left( \frac{1}{4} \right)\]              
  done clear
  D)
          \[45{}^\circ \]
  done clear
  View Answer play_arrow

• question_answer53) Two springs A and B having force constants k each are arranged (i) in parallel and (ii) in series. A mass M is attached to two arrangements separately. If time period in case (i) is\[{{T}_{1}}\]1 and in case (ii) is \[{{T}_{1}}\] then ratio\[\frac{{{T}_{1}}}{{{T}_{2}}}\] is                                                              
  A)
     \[1\]                                    
  done clear
  B)
   \[2\]
  done clear
  C)
   \[0.5\]                 
  done clear
  D)
          \[0.25\]
  done clear
  View Answer play_arrow

• question_answer54)                 A particle executing SHM has amplitude m and frequency 60 Hz, The maximum acceleration of the particle is
  A)
   \[60{{\pi }^{2}}\,m/{{s}^{2}}\]                                  
  done clear
  B)
   \[80{{\pi }^{2}}\,m/{{s}^{2}}\]
  done clear
  C)
   \[120{{\pi }^{2}}\,m/{{s}^{2}}\]                
  done clear
  D)
          \[144{{\pi }^{2}}\,m/{{s}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer55) In a capillary tube, water rises to a height of 2 cm. The height of water that will rise in another capillary tube of radius one-third that of first is               
  A)
   2 cm                                     
  done clear
  B)
   3 cm          
  done clear
  C)
   6 cm                     
  done clear
  D)
          0.67 cm      
  done clear
  View Answer play_arrow

• question_answer56) A block of mass 10 kg is moving up an inclined plane of inclination \[30{}^\circ \] with an , initial speed of 5 m/s. It stops after 0.5 s, what is the value of coefficient of kinetic friction?                            
  A)
   0.5                                        
  done clear
  B)
   0.6           
  done clear
  C)
   \[\sqrt{3}\]                       
  done clear
  D)
          \[\frac{1}{\sqrt{3}}\]       
  done clear
  View Answer play_arrow

• question_answer57) The dynamic mass of electron having rest mass \[{{m}_{0}}\] and moving with speed 0.8 c is
  A)
   \[0.6\,{{m}_{0}}\]                          
  done clear
  B)
   \[0.8\,{{m}_{0}}\]
  done clear
  C)
   \[\frac{5}{3}\,{{m}_{0}}\]           
  done clear
  D)
          \[1.25\,{{m}_{0}}\]
  done clear
  View Answer play_arrow

• question_answer58) The potential energy of a satellite of mass and revolving at a height equal to radius of earth from earths surface, is
  A)
   \[-\,mg{{R}_{e}}\]                         
  done clear
  B)
   \[-0.67\,mg{{R}_{e}}\]
  done clear
  C)
   \[-0.5\,mg{{R}_{e}}\]                   
  done clear
  D)
          \[-0.33\,mg{{R}_{e}}\]
  done clear
  View Answer play_arrow

• question_answer59) The wavelength of light emitted due to transition of electron from second orbit to first orbit in hydrogen atom is
  A)
   \[6563\overset{\text{o}}{\mathop{\text{A}}}\,\]                           
  done clear
  B)
   \[4102\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
   \[4861\overset{\text{o}}{\mathop{\text{A}}}\,\]           
  done clear
  D)
          \[1215\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer60) Which one of the following happens when light ray enters from air to a glass slab?
  A)
   Wavelength increases
  done clear
  B)
   Wavelength decreases
  done clear
  C)
   Frequency increases
  done clear
  D)
   Frequency decreases
  done clear
  View Answer play_arrow

• question_answer61) Minimum wavelength of X-rays produced in a coolidge tube operated at potential difference of 40 kV is
  A)
   \[0.31\overset{\text{o}}{\mathop{\text{A}}}\,\]                            
  done clear
  B)
   \[3.1\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
   \[31\overset{\text{o}}{\mathop{\text{A}}}\,\]                
  done clear
  D)
          \[311\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer62) A convex lens of focal length 40 cm is (kept in contact with a concave lens of focal length 25 cm. The power of the combination is
  A)
   -6.5D                                   
  done clear
  B)
   +6.5D
  done clear
  C)
   -1.5D                   
  done clear
  D)
          +1.5D
  done clear
  View Answer play_arrow

• question_answer63) At the same temperature and pressure the densities of two diatomic gases are\[{{d}_{1,}}\] and \[{{d}_{2,}}\] Then the ratio of velocities of sound in these gases will be
  A)
   \[\frac{{{d}_{1}}}{{{d}_{2}}}\]                                   
  done clear
  B)
   \[\sqrt{\frac{{{d}_{2}}}{{{d}_{1}}}}\]
  done clear
  C)
   \[\sqrt{\frac{{{d}_{1}}}{{{d}_{2}}}}\]                      
  done clear
  D)
          \[\frac{{{d}_{2}}^{2}}{{{d}_{1}}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer64) In the reaction \[_{92}{{X}^{234}}{{\xrightarrow{{}}}_{87}}{{\Upsilon }^{222}}.\]How many \[\text{-}\]particles and \[\beta \]-particles are emitted?
  A)
   3 and 5                                
  done clear
  B)
   5 and 3
  done clear
  C)
   3 and 3                
  done clear
  D)
          3 and 1
  done clear
  View Answer play_arrow

• question_answer65) When a substance is gradually heated, its initial colour is
  A)
   red                                       
  done clear
  B)
   green
  done clear
  C)
   yellow                 
  done clear
  D)
          white
  done clear
  View Answer play_arrow

• question_answer66) At which temperature the speed of sound will be three times of its speed at \[0{}^\circ C\]?
  A)
  \[1100{}^\circ C\]                            
  done clear
  B)
  \[1284{}^\circ C\]
  done clear
  C)
  \[1500{}^\circ C\]            
  done clear
  D)
          \[2184{}^\circ C\]
  done clear
  View Answer play_arrow

• question_answer67) Thermocouple, thermometer is based on
  A)
   Seebeck effect               
  done clear
  B)
   Pettier effect
  done clear
  C)
   Thomson effect              
  done clear
  D)
   Joule effect
  done clear
  View Answer play_arrow

• question_answer68) An ideal gas has volume V0at \[27{}^\circ C\] It is heated at constant pressure, so/ that its volume becomes \[2{{V}_{0}}.\] Then the final temperature is
  A)
   327 K                                   
  done clear
  B)
  \[327{}^\circ C\]
  done clear
  C)
   \[54{}^\circ C\]                
  done clear
  D)
          150K
  done clear
  View Answer play_arrow

• question_answer69) The electric field required to keep a water drop of mass in and charge e just to remain suspended is:
  A)
   \[mg\]                                
  done clear
  B)
   \[emg\]
  done clear
  C)
   \[\frac{mg}{e}\]            
  done clear
  D)
          \[\frac{em}{g}\]
  done clear
  View Answer play_arrow

• question_answer70) In a triode valve the plate current will be maximum when
  A)
   both grid and plate are positive
  done clear
  B)
   both grid and plate are negative
  done clear
  C)
   grid is negative and plate is positive
  done clear
  D)
   grid is positive and plate is negative
  done clear
  View Answer play_arrow

• question_answer71) A point charge is located at 0. There is a point P at a distance r from it. The electric field at point P is 500 V/m and a potential of 3000 V. Then the value of r is
  A)
   6m                                        
  done clear
  B)
   12m
  done clear
  C)
   24 m                    
  done clear
  D)
          36 m
  done clear
  View Answer play_arrow

• question_answer72) A particle having charge 100 times that of an electron is revolving in a circular path of radius 0.8 m at the rate of 1 revolution/second. The magnetic field produced at the centre of orbit is
  A)
   \[{{10}^{-3}}\,\mu {{  }_{0}}\]                                
  done clear
  B)
   \[{{10}^{-7}}\,\mu {{  }_{0}}\]
  done clear
  C)
   \[{{10}^{-11}}\,\mu {{  }_{0}}\]              
  done clear
  D)
  \[{{10}^{-17}}\,\mu {{  }_{0}}\]
  done clear
  View Answer play_arrow

• question_answer73) A body of mass 10 kg is placed in a lift moving upward with an acceleration of 2m/s. The apparent weight of body is \[(g=9.8\,m/{{s}^{2}})\]
  A)
   118 N                                   
  done clear
  B)
   78 N
  done clear
  C)
   98 N                     
  done clear
  D)
          198 N
  done clear
  View Answer play_arrow

• question_answer74) The work function of a photometal is 6.63 eV. The threshold wavelength is
  A)
   \[3920\,\overset{o}{\mathop{\text{A}}}\,\]                                      
  done clear
  B)
   \[1866\,\overset{o}{\mathop{\text{A}}}\,\]
  done clear
  C)
   \[186.6\,\overset{o}{\mathop{\text{A}}}\,\]                    
  done clear
  D)
          \[18666\,\overset{o}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer75) In a transformer the number of turns in primary and secondary coil are 50 and 40 respectively. If 220 V A.C. is applied across the primary coil, the ratio of current in primary and secondary coil is
  A)
   4 : 5                      
  done clear
  B)
   5 : 4
  done clear
  C)
   16 : 25                 
  done clear
  D)
          25 : 16
  done clear
  View Answer play_arrow

• question_answer76) The equivalent resistance between A and B in the given circuit will be
  A)
   R                                           
  done clear
  B)
   2R
  done clear
  C)
   \[\frac{R}{2}\]                 
  done clear
  D)
          6/R
  done clear
  View Answer play_arrow

• question_answer77) The nuclear energy in nuclear reactor is produced by
  A)
   nuclear fission                 
  done clear
  B)
   nuclear fusion
  done clear
  C)
   electric generator          
  done clear
  D)
   burning of coal
  done clear
  View Answer play_arrow

• question_answer78) At which temperature the Fahrenheit and Celcius scale give equal readings?
  A)
  \[40{}^\circ \]                                   
  done clear
  B)
  \[37{}^\circ \]
  done clear
  C)
  \[-40{}^\circ \]                  
  done clear
  D)
         \[80{}^\circ \]
  done clear
  View Answer play_arrow

• question_answer79) The electric field strength due to a dipole depends upon distance r as
  A)
   \[E\propto \frac{1}{r}\]               
  done clear
  B)
          \[E\propto \frac{1}{{{r}^{2}}}\]
  done clear
  C)
   \[E\propto \frac{1}{{{r}^{3}}}\]                
  done clear
  D)
          \[E\propto \frac{1}{{{r}^{4}}}\]
  done clear
  View Answer play_arrow

• question_answer80) The reading of voltmeter in the circuit shown is
  A)
   2.25 V                                  
  done clear
  B)
   3.25 V
  done clear
  C)
   4.25V                   
  done clear
  D)
          6.25V
  done clear
  View Answer play_arrow

• question_answer81) The Youngs modulus of a wire of length (L) and radius (r) is \[\Upsilon .\] If the length is reduced to \[\frac{L}{2}\] and radius to\[\frac{r}{2}\] then its Youngs modulus will be
  A)
   \[\frac{\Upsilon }{2}\]                                  
  done clear
  B)
   \[\Upsilon \]
  done clear
  C)
   \[2\Upsilon \]                  
  done clear
  D)
          \[4\Upsilon \]
  done clear
  View Answer play_arrow

• question_answer82) The decay constant of a radioactive substance is\[\lambda .\] The half life and mean life of substance are respectively given by
  A)
   \[\frac{1}{\lambda }\text{and}\frac{{{\log }_{e}}2}{\lambda }\]   
  done clear
  B)
          \[\frac{{{\log }_{e}}2}{\lambda }\text{and}\frac{1}{\lambda }\]
  done clear
  C)
   \[\frac{\lambda }{{{\log }_{e}}2}\text{and}\,\frac{1}{\lambda }\]            
  done clear
  D)
          \[\frac{\lambda }{{{\log }_{e}}2}\text{and}\,\text{2}\lambda \]
  done clear
  View Answer play_arrow

• question_answer83) A source emitting a note of frequency 240 Hz is moving towards an observer with a speed of 20 m/s. If the observer also moves with a speed of 20 m/s towards the source, the apparent frequency heard by observer is (velocity of sound = 340 m/s)
  A)
   270 Hz                 
  done clear
  B)
          240 Hz
  done clear
  C)
   268 Hz                 
  done clear
  D)
          360 Hz
  done clear
  View Answer play_arrow

• question_answer84) In pressure cooker, cooking is fast as compared to open atmosphere due to
  A)
   decreased boiling point           
  done clear
  B)
   increased boiling point             
  done clear
  C)
   enclosure of lid permanently       
  done clear
  D)
   heat is not lost to surroundings    
  done clear
  View Answer play_arrow

• question_answer85) The terminal velocity (\[{{\upsilon }_{t}}\]) of a spherical body of radius r falling in a long vertical column of liquid of viscosity \[\eta \] depends on r and \[\eta \] as follows \[{{\upsilon }_{t}}\] is proportional to
  A)
   \[\eta \,r\]                        
  done clear
  B)
          \[\eta \,{{r}^{2}}\]
  done clear
  C)
   \[{{\eta }^{2}}r\]           
  done clear
  D)
          \[\frac{{{r}^{2}}}{\eta }\]
  done clear
  View Answer play_arrow

• question_answer86) An unpolarised light of intensity\[{{I}_{0}}\] on a polaroid whose optic axis is inclined at \[45{}^\circ \] to the incident light. Then the intensity of light emerging from the polaroid is
  A)
   \[{{I}_{0}}\]                      
  done clear
  B)
          \[\frac{{{I}_{0}}}{2}\]
  done clear
  C)
   \[\frac{{{I}_{0}}}{4}\]                    
  done clear
  D)
          zero         
  done clear
  View Answer play_arrow

• question_answer87) In a triode valve the plate resistance is equal to the toad resistance. Then voltage  gain of triode valve is
  A)
   \[\mu \]             
  done clear
  B)
          \[\frac{\mu }{2}\]
  done clear
  C)
   \[\frac{\mu }{4}\]         
  done clear
  D)
          \[2\mu \]
  done clear
  View Answer play_arrow

• question_answer88) A tube closed at one end produces a note B of frequency 512 Hz. If the tube is opened k at both ends, the frequency will become
  A)
   512 Hz                 
  done clear
  B)
          256 Hz
  done clear
  C)
   128 Hz                 
  done clear
  D)
          1024 Hz
  done clear
  View Answer play_arrow

• question_answer89) A wire EF carrying current \[{{i}_{1}}\] is placed near a current carrying rectangular loop (ABCD as shown. Then the wire EF   
  A)
   remains unaffected
  done clear
  B)
   is attracted towards loop
  done clear
  C)
   is repelled away from loop
  done clear
  D)
   first attracted and then repelled
  done clear
  View Answer play_arrow

• question_answer90) The fractional change in internal energy when a gas is cooled from \[927{}^\circ C\] to \[27{}^\circ C\] is
  A)
   0.25                                      
  done clear
  B)
   0.75
  done clear
  C)
   1                            
  done clear
  D)
          0.67
  done clear
  View Answer play_arrow

• question_answer91) A plane progressive wave is given by \[y=25\cos (2\pi t-\pi x)\] Then the amplitude and frequency are respectively
  A)
   25, 100                
  done clear
  B)
          25, 1
  done clear
  C)
   25, 2                     
  done clear
  D)
          50\[\pi ,\] 2
  done clear
  View Answer play_arrow

• question_answer92) The ratio of specific charge of an \[\text{-}\] particle to that of a proton is
  A)
   2 : 1                      
  done clear
  B)
          1 : 1
  done clear
  C)
   1 : 2                      
  done clear
  D)
          1 : 3
  done clear
  View Answer play_arrow

• question_answer93) Two vibrating tuning forks produce waves given by \[{{y}_{1}}=4\sin \,500\pi t,\] \[{{y}_{1}}=2\sin \,506\pi t\] If they are held near the ear of a person, the person will hear
  A)
   3 beats/second with intensity ratio of maxima to minima equal to 9
  done clear
  B)
   3 beats/second with intensity ratio of maxima to minima equal to 2
  done clear
  C)
   6 beats/second with intensity ratio of maxima to minima to equal to 2
  done clear
  D)
   6 beats/second with intensity ratio of maxima to minima equal to 9
  done clear
  View Answer play_arrow

• question_answer94) The half life of a certain radioactive substance is 12 days. The time taken for  \[\frac{7}{8}\] of sample to decay is
  A)
   36 days               
  done clear
  B)
          12 days
  done clear
  C)
   4 days                 
  done clear
  D)
          24 days
  done clear
  View Answer play_arrow

• question_answer95) Three bulbs of 40 W, 60 W and 100 W are arranged in series across a 220 V supply. The bulb giving maximum brightness is of
  A)
   40 W
  done clear
  B)
   60 W
  done clear
  C)
   100 W
  done clear
  D)
   all give equal brightness
  done clear
  View Answer play_arrow

• question_answer96) A cubical box contains charge +Q at its centre. The total magnetic flux emerging from the box is :
  A)
   \[\frac{Q}{{{\varepsilon }_{0}}}\]                                            
  done clear
  B)
   \[\frac{Q}{6{{\varepsilon }_{0}}}\]
  done clear
  C)
   \[\frac{Q}{4{{\varepsilon }_{0}}}\]                          
  done clear
  D)
          \[{{\varepsilon }_{0}}Q\]
  done clear
  View Answer play_arrow

• question_answer97) A parallel plate capacitor is filled with two dielectrics as shown in figure. If A is area of each plate; then the effective capacitance between X and \[\Upsilon \] is
  A)
   \[\frac{{{\varepsilon }_{0}}A}{d}\left( \frac{{{K}_{1}}+{{K}_{2}}}{2} \right)\]
  done clear
  B)
          \[\frac{2{{\varepsilon }_{0}}A}{d}\left( {{K}_{1}}+{{K}_{2}} \right)\]
  done clear
  C)
   \[\frac{2{{\varepsilon }_{0}}A}{d}\left( \frac{{{K}_{1}}+{{K}_{2}}}{{{K}_{1}}{{K}_{2}}} \right)\]
  done clear
  D)
          \[\frac{2{{\varepsilon }_{0}}A}{d}\left( \frac{{{K}_{1}}{{K}_{2}}}{{{K}_{1}}+{{K}_{2}}} \right)\]
  done clear
  View Answer play_arrow

• question_answer98) A coil has self-inductance 60 mH. If the current in the coil increases from 1.0 A to 1.5 A in 0.1 second and the resistance of coil is \[4\Omega ,\] the current induced in the coil is
  A)
   1.0A                     
  done clear
  B)
          \[\frac{4}{3}\text{A}\]
  done clear
  C)
   \[\frac{\text{3}}{\text{4}}\text{A}\]                      
  done clear
  D)
          \[\frac{3}{40}\text{A}\]
  done clear
  View Answer play_arrow

• question_answer99) If a mica sheet of thickness t and refractive index \[\mu .\] is placed in the path of one of interfering beam in a double slit experiment then displacement of fringes will be                           
  A)
   \[\frac{D}{d}\mu t\]                     
  done clear
  B)
          \[\frac{D}{d}(\mu -1)t\]
  done clear
  C)
   \[\frac{D}{d}(\mu +1)t\]             
  done clear
  D)
          \[\frac{D}{d}({{\mu }^{2}}-1)t\]
  done clear
  View Answer play_arrow

• question_answer100) If a current of \[i\] amp is flowing in the winding of solenoid and  ft is the number of turns per unit length, then the magnetic field at the centre of solenoid is
  A)
   \[{{\mu }_{0}}ni\]                          
  done clear
  B)
          \[\frac{{{\mu }_{0}}ni}{2}\]
  done clear
  C)
   \[\frac{{{\mu }_{0}}i}{2n}\]                        
  done clear
  D)
          \[\frac{{{\mu }_{0}}i}{n}\]
  done clear
  View Answer play_arrow

• question_answer101) Which one of the following relation is correct for the rate of diffusion of a gas(r)?
  A)
   \[r\propto \sqrt{d}\]                                    
  done clear
  B)
   \[r\propto \sqrt{1/d}\]
  done clear
  C)
         \[r=d\]                 
  done clear
  D)
          \[r\propto d\]
  done clear
  View Answer play_arrow

• question_answer102) Which of the following species, is planar?
  A)
   \[CO_{3}^{2-}\]        
  done clear
  B)
   \[N{{H}_{3}}\]
  done clear
  C)
   \[PC{{l}_{3}}\]      
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer103) Which one of the following is not a Lewis acid?
  A)
   \[AlC{{l}_{3}}\]                                
  done clear
  B)
   \[SnC{{l}_{4}}\]               
  done clear
  C)
          \[B{{F}_{3}}\]                   
  done clear
  D)
          \[BeC{{l}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer104) Which one of the following is important ore of copper?
  A)
   Calamine                           
  done clear
  B)
   Malachite
  done clear
  C)
   Galena                
  done clear
  D)
          Dolomite
  done clear
  View Answer play_arrow

• question_answer105) Which of the following is most commonly used in photo-electrical cells?
  A)
   Francium                           
  done clear
  B)
   Silicon
  done clear
  C)
   Caesium             
  done clear
  D)
          Lithium
  done clear
  View Answer play_arrow

• question_answer106) in the following reaction, what is X? \[HC\equiv CH\xrightarrow[HgS{{O}_{4}}]{{{H}_{2}}O}x\]
  A)
                   \[C{{H}_{3}}COOH\]      
  done clear
  B)
                   \[\underset{COOH}{\overset{COOH}{\mathop{|}}}\,\]
  done clear
  C)
                   \[C{{H}_{3}}CHO\]
  done clear
  D)
                   \[\underset{C{{H}_{2}}OH}{\overset{C{{H}_{2}}OH}{\mathop{|}}}\,\]
  done clear
  View Answer play_arrow

• question_answer107) The product formed by the reaction of acetamide with \[B{{r}_{2}}\] in presence of \[NaOH\]is:
  A)
   \[C{{H}_{3}}CN\]     
  done clear
  B)
   \[C{{H}_{3}}CHO\]
  done clear
  C)
   \[C{{H}_{3}}C{{H}_{2}}OH\] 
  done clear
  D)
   \[C{{H}_{3}}N{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer108) An asymmetric carbon atom is that in which
  A)
   three similar and one dissimilar groups
  done clear
  B)
   two similar and two dissimilar groups
  done clear
  C)
   all the different groups attached to it
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer109) How many structural isomers can be obtained from \[{{C}_{2}}HB{{r}_{2}}\]
  A)
   \[4\]                                    
  done clear
  B)
   \[3\]
  done clear
  C)
   \[2\]                    
  done clear
  D)
          \[1\]
  done clear
  View Answer play_arrow

• question_answer110) When an a-particle is removed from Ra, the new element formed is of
  A)
   zero group        
  done clear
  B)
   Ist group
  done clear
  C)
   VIIth group   
  done clear
  D)
          IIIrd group
  done clear
  View Answer play_arrow

• question_answer111) Which one of the following metal is used in galvanization?
  A)
   \[Cu\]                                 
  done clear
  B)
   \[Ag\]
  done clear
  C)
   \[Zn\]                  
  done clear
  D)
          \[Fe\]
  done clear
  View Answer play_arrow

• question_answer112) The process carried out in perfect insulation is
  A)
   isothermal    
  done clear
  B)
          isobaric
  done clear
  C)
   isochoric            
  done clear
  D)
          adiabatic
  done clear
  View Answer play_arrow

• question_answer113) When potassium dichromate crystals are heated, we get
  A)
   oxygen       
  done clear
  B)
   hydrogen
  done clear
  C)
   sulphur dioxide
  done clear
  D)
   hydrogen sulphide
  done clear
  View Answer play_arrow

• question_answer114) In the  preparation  of  sulphuric acid,\[{{V}_{2}}{{O}_{5}}\] is used in the reaction which is
  A)
   \[S+{{O}_{2}}\to S{{O}_{2}}~~\]
  done clear
  B)
   \[S{{O}_{2}}+{{H}_{2}}O\to {{H}_{2}}S{{O}_{4}}\]
  done clear
  C)
   \[2S{{O}_{2}}+{{O}_{2}}\to 2S{{O}_{3}}\]
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer115) Which one of the following configuration is correct for \[F{{e}^{+3}}\] ?
  A)
   \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}4{{s}^{2}}3{{d}^{3}}\]
  done clear
  B)
   \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}4{{s}^{2}}3{{d}^{7}}\]
  done clear
  C)
   \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}4{{s}^{2}}3{{d}^{6}}\]
  done clear
  D)
   \[1{{s}^{2}}\,2{{s}^{2}}\,2{{p}^{6}}\,3{{s}^{2}}\,3{{p}^{6}}\,3{{d}^{5}}\]
  done clear
  View Answer play_arrow

• question_answer116) IUPAC name of tert-butyl alcohol is
  A)
   Butanol-2
  done clear
  B)
   2-Methyl propanol-2
  done clear
  C)
   Butanol-1
  done clear
  D)
   Propanol-2
  done clear
  View Answer play_arrow

• question_answer117) 1-Chlorobutane on reaction with alcoholic potash gives
  A)
   1-Butanol
  done clear
  B)
   2-Butene
  done clear
  C)
   1-Butene
  done clear
  D)
   2-Butanol
  done clear
  View Answer play_arrow

• question_answer118) Which one of the following is good conductor of electricity in solution state?
  A)
   Metallic solid 
  done clear
  B)
   Covalent
  done clear
  C)
   Molecular solid
  done clear
  D)
   Ionic compound
  done clear
  View Answer play_arrow

• question_answer119) When \[C{{H}_{3}}C{{H}_{2}}Br\] reacts with sodium acetylide, the main product is
  A)
   1-butyne
  done clear
  B)
   1-butene
  done clear
  C)
   1-butane  
  done clear
  D)
   3-butane
  done clear
  View Answer play_arrow

• question_answer120) By increasing the temperature, the vapour pressure of a substance
  A)
   does not depend on temperature
  done clear
  B)
   always increases
  done clear
  C)
   decreases
  done clear
  D)
   partially depends on temperature
  done clear
  View Answer play_arrow

• question_answer121) Which one of the following is Buffer solution?
  A)
   \[C{{H}_{3}}COON{{H}_{4}}\]
  done clear
  B)
   \[NaOH\]
  done clear
  C)
   \[Pb{{(OH)}_{2}}\]    
  done clear
  D)
   \[N{{H}_{4}}Cl+N{{H}_{4}}OH\]
  done clear
  View Answer play_arrow

• question_answer122) The correct order of acidic strength is
  A)
   \[HF<HCl<HBr<HI\]
  done clear
  B)
   \[HBr<HCl<HI<HF\]
  done clear
  C)
   \[HCl<HBr<HF<HI\]
  done clear
  D)
   \[HI<HBr<HCl<HF\]
  done clear
  View Answer play_arrow

• question_answer123) Which one of the following has maximum ionization potential?
  A)
   \[K\]                    
  done clear
  B)
          \[Be\]
  done clear
  C)
   \[Na\]                 
  done clear
  D)
          \[Mg\]
  done clear
  View Answer play_arrow

• question_answer124) Carbylamine test is performed in alcoholic \[KOH\]by heating a mixture of
  A)
   chloroform and silver powder
  done clear
  B)
   an alkyl halide and a pri. Amine
  done clear
  C)
   an alkyl cyanide and a pri. Amine
  done clear
  D)
   trihalongenated methane and  a primary amine
  done clear
  View Answer play_arrow

• question_answer125) The most favourable condition for the manufacture of \[N{{H}_{3}}\]is
  A)
   low pressure and high temperature
  done clear
  B)
   low temperature and high pressure
  done clear
  C)
   high temperature and high pressure
  done clear
  D)
   low temperature and low pressure
  done clear
  View Answer play_arrow

• question_answer126) Which of the following gas is insoluble in water?
  A)
   \[S{{O}_{2}}\]                  
  done clear
  B)
          \[{{H}_{2}}\]
  done clear
  C)
   \[N{{H}_{3}}\]                 
  done clear
  D)
          \[C{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer127) Which one of the following shows haloform test?
  A)
   Butanol-2     
  done clear
  B)
   Butanol-1
  done clear
  C)
   2-methyl ketone
  done clear
  D)
   2-methyl propane
  done clear
  View Answer play_arrow

• question_answer128) Isobars have
  A)
   same number of nucleons
  done clear
  B)
   same number of neutrons
  done clear
  C)
   same number of protons
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer129) If acetyl chloride is reduced in the presence of \[BaS{{O}_{4}}\]and Pd then
  A)
   \[C{{H}_{3}}COOH\]is formed
  done clear
  B)
   \[C{{H}_{3}}CHO\]is formed
  done clear
  C)
   \[C{{H}_{3}}C{{H}_{2}}OH\]is formed
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer130) The unit of the molality is
  A)
   mole per litre 
  done clear
  B)
   mole per kilogram
  done clear
  C)
   per mole per litre
  done clear
  D)
   mole litre
  done clear
  View Answer play_arrow

• question_answer131) Which one of the following does not respond to Cannizzaro reaction?
  A)
   \[{{C}_{6}}{{H}_{5}}CHO\]   
  done clear
  B)
          \[HCHO\]
  done clear
  C)
   \[CC{{l}_{3}}CHO\]    
  done clear
  D)
          \[C{{H}_{3}}CHO\]
  done clear
  View Answer play_arrow

• question_answer132) \[20\text{ }gm.\]\[CaC{{O}_{3}}\] on decomposition gives \[C{{O}_{2}}\] at STP
  A)
   \[4.48\text{ }litre\]        
  done clear
  B)
          \[22.4\text{ }litre\]
  done clear
  C)
   \[2.24\text{ }litre\]
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer133) Lucas reagent is
  A)
   \[dil\text{ }HCl+\text{ }anhyd.\text{ }ZnC{{l}_{2}}\]
  done clear
  B)
   \[Pd-BaS{{O}_{4}}\]
  done clear
  C)
   \[cone.HCl+anhyd.ZuC{{l}_{2}}\]
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer134) Of the following elements, which one has the same oxidation state in all of its compounds?
  A)
   carbon                                
  done clear
  B)
   hydrogen
  done clear
  C)
   oxygen               
  done clear
  D)
          fluorine
  done clear
  View Answer play_arrow

• question_answer135) When \[{{C}_{2}}{{H}_{4}}\]is reacted with \[{{H}_{2}}\] in presence of \[Ni\], then the product formed is
  A)
   \[C{{H}_{4}}\]                                  
  done clear
  B)
   \[{{C}_{2}}{{H}_{6}}\]
  done clear
  C)
   \[HCOOH\]     
  done clear
  D)
          \[HCHO\]
  done clear
  View Answer play_arrow

• question_answer136) Vinegar is
  A)
   \[HCOOH\]
  done clear
  B)
                          \[C{{H}_{3}}CHO\]
  done clear
  C)
   \[HCHO\]           
  done clear
  D)
          \[C{{H}_{3}}COOH\]
  done clear
  View Answer play_arrow

• question_answer137) At high altitude the boiling point of water lowers because
  A)
   atmospheric pressure is high
  done clear
  B)
   atmospheric pressure is low
  done clear
  C)
   temperature is low
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer138) Catalyst increases rate of reaction by
  A)
   decreasing equilibrium constant
  done clear
  B)
   decreasing threshold energy
  done clear
  C)
   decreasing activation energy
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer139) \[{{C}_{4}}{{H}_{11}}N\] shows how many primary amines?
  A)
   \[1\]                    
  done clear
  B)
          \[2\]
  done clear
  C)
   \[3\]                    
  done clear
  D)
          \[4\]
  done clear
  View Answer play_arrow

• question_answer140) Which one of the following is not a colligative property?
  A)
   Elevation in boiling point
  done clear
  B)
   Osmotic pressure
  done clear
  C)
   Optical activity
  done clear
  D)
   Relative lowering of vapour pressure
  done clear
  View Answer play_arrow

• question_answer141) Grignard reagent reacts with \[HCHO\]to produce
  A)
   sec. alcohol   
  done clear
  B)
   anhydride
  done clear
  C)
   an acid      
  done clear
  D)
   primary alcohol
  done clear
  View Answer play_arrow

• question_answer142) Which one of the following is slag?
  A)
   \[CaSi{{O}_{3}}\]       
  done clear
  B)
   \[Si{{O}_{2}}\]
  done clear
  C)
   \[CaO\]        
  done clear
  D)
   \[Ca{{(OH)}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer143) When  2-bromobutane   reacts  with alcoholic \[KOH,\]the reaction is
  A)
   hydrogenation
  done clear
  B)
   halogenation
  done clear
  C)
   dehydro halogenation
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer144) Adiabatic process involves
  A)
   \[\Delta q=0\]
  done clear
  B)
   \[\Delta E=0\]
  done clear
  C)
   \[\Delta W=0\]       
  done clear
  D)
   \[\Delta V=0\]
  done clear
  View Answer play_arrow

• question_answer145) If three unreactive gases having partial pressures \[{{P}_{A}},{{P}_{B}}\] and \[{{P}_{C}};\] their moles are respectively \[1\text{ }mole,\] \[2\text{ }moles\] and \[3moles,\]then their total pressure is
  A)
   \[P={{P}_{A}}+{{P}_{B}}+{{P}_{C}}\]
  done clear
  B)
   \[P=\frac{\sqrt{{{P}_{A}}+{{P}_{B}}+{{P}_{C}}}}{3}\]
  done clear
  C)
                   \[P=\frac{{{P}_{A}}+{{P}_{B}}+{{P}_{C}}}{6}\]
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer146) Glucose reacts with bromine water to produce
  A)
   Glyceraldehyde
  done clear
  B)
   Gluconic acid
  done clear
  C)
   saccharic acid
  done clear
  D)
   Glucaric acid
  done clear
  View Answer play_arrow

• question_answer147) If \[0.75\text{ }mole\]of an ideal gas expands isothermally at \[{{27}^{o}}C\]from 15 lit. to\[25\text{ }lit\]. then the maximum work done is
  A)
   \[9.14\text{ }J\]                              
  done clear
  B)
   \[9.23J\]
  done clear
  C)
   \[9.43J\]             
  done clear
  D)
          \[9.75J\]
  done clear
  View Answer play_arrow

• question_answer148) Which does not form linear structure?
  A)
   \[C{{O}_{2}}\]                                  
  done clear
  B)
   \[N{{O}_{2}}\]
  done clear
  C)
   \[{{C}_{2}}{{H}_{2}}\]                   
  done clear
  D)
          \[BeC{{l}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer149) Zeeman effect explains splitting of lines in
  A)
   magnetic field
  done clear
  B)
          electric field
  done clear
  C)
          both of these  
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer150) In Lake test of \[A{{l}^{3+}}\] ion, there is formation of coloured floating-lake. It is due to
  A)
   adsorption of litmus by \[{{H}_{2}}O\]
  done clear
  B)
          adsorption of litmus by \[Al{{(OH)}_{3}}\]
  done clear
  C)
          adsorption of litmus by \[Al{{(OH)}_{4}}\]
  done clear
  D)
          none of the above.
  done clear
  View Answer play_arrow

• question_answer151) In Clemmensens reduction, acetone gives
  A)
   propane      
  done clear
  B)
          propene
  done clear
  C)
          propanol     
  done clear
  D)
          propyne
  done clear
  View Answer play_arrow

• question_answer152) Chloroform reacts with cone. \[HN{{O}_{3}}\]to give
  A)
   \[CHC{{l}_{2}}N{{O}_{2}}\]
  done clear
  B)
          \[CHC{{l}_{2}}N{{O}_{3}}\]
  done clear
  C)
          \[CC{{l}_{3}}N{{O}_{2}}\]
  done clear
  D)
          \[CHC{{l}_{2}}.HN{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer153) Anhydrous \[AlC{{l}_{3}}\] is prepared from
  A)
   \[Al+C{{l}_{2}}~\]
  done clear
  B)
          \[Al+dil.\text{ }HCl\]
  done clear
  C)
          \[Al+con;\text{ }HCl\]
  done clear
  D)
          \[Al+dry\text{ }HCl\text{ }gas\]
  done clear
  View Answer play_arrow

• question_answer154) Which one of the following responds to Tollens test?
  A)
   \[C{{H}_{3}}COC{{H}_{3}}\]  
  done clear
  B)
          \[C{{H}_{3}}CHO\]
  done clear
  C)
          \[HCOOH\]    
  done clear
  D)
          \[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\]
  done clear
  View Answer play_arrow

• question_answer155) Marsh gas is
  A)
   \[C{{H}_{4}}\]                                  
  done clear
  B)
          \[{{C}_{2}}{{H}_{2}}\]
  done clear
  C)
          \[{{H}_{2}}S\]                                  
  done clear
  D)
          \[S{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer156) If volume of 2 moles of an ideal gas at \[540\text{ }K\]is \[44.8\text{ }litre,\]its pressure is
  A)
   \[2\text{ }aim.\]                             
  done clear
  B)
          \[4\,atm.\]
  done clear
  C)
          \[5\text{ }aim.\]                             
  done clear
  D)
          \[6\text{ }atm.\]
  done clear
  View Answer play_arrow

• question_answer157) Which one of the following is not a Chalcogen?
  A)
   \[S\]                                    
  done clear
  B)
          \[Se\]
  done clear
  C)
          \[O\]                                   
  done clear
  D)
          \[Na\]
  done clear
  View Answer play_arrow

• question_answer158) The number of moles of \[KCl\]in \[1000\text{ }ml\] of \[3\text{ }molar\]solution is
  A)
   \[2\]                                    
  done clear
  B)
          \[3\]
  done clear
  C)
          \[4\]                                    
  done clear
  D)
          \[5\]
  done clear
  View Answer play_arrow

• question_answer159) Tyndall effect is shown by
  A)
   solution       
  done clear
  B)
          precipitate
  done clear
  C)
          sol            
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer160) Epsom salt is
  A)
   \[MgS{{O}_{4}}.2{{H}_{2}}O\]
  done clear
  B)
          \[MgS{{O}_{4}}\text{ }.\text{ }7{{H}_{2}}O\]
  done clear
  C)
          \[BaS{{O}_{4}}\text{ }.2{{H}_{2}}O\]
  done clear
  D)
          \[CaS{{O}_{4}}.2{{H}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer161) For the reaction, \[{{N}_{2}}+3{{H}_{2}}\xrightarrow{{}}2N{{H}_{3}}\] which one of the following is correct regarding \[\Delta H\]?
  A)
   \[\Delta H=\Delta E-RT\]
  done clear
  B)
          \[\Delta H=\Delta E-2RT\]
  done clear
  C)
          \[\Delta H=\Delta E+2RT\]
  done clear
  D)
          \[\Delta H=\Delta E+RT\]
  done clear
  View Answer play_arrow

• question_answer162) The best water soluble hydroxide is
  A)
   \[Ca{{(OH)}_{2}}\]
  done clear
  B)
          \[Ba{{(OH)}_{2}}\]
  done clear
  C)
          \[Sr{{(OH)}_{2}}\]
  done clear
  D)
          \[Mg{{(OH)}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer163) On dry heating, calcium formate gives
  A)
   acetaldehyde 
  done clear
  B)
          formaldehyde
  done clear
  C)
          acetone       
  done clear
  D)
          acetic acid
  done clear
  View Answer play_arrow

• question_answer164) The normality of a solution containing \[31.5\text{ }gm\]. of hydrated oxalic acid \[({{C}_{2}}{{H}_{2}}{{O}_{4}}.2{{H}_{2}}O)\] in\[1250\text{ }ml\]. of solution is
  A)
   \[0.1N\]                             
  done clear
  B)
          \[0.2N\]
  done clear
  C)
          \[0.4N\]                             
  done clear
  D)
          \[0.6N\]
  done clear
  View Answer play_arrow

• question_answer165) Both oxidation and reduction takes place in
  A)
   \[NaBr+HCl\xrightarrow{{}}NaCl+HBr\]
  done clear
  B)
          \[HBr+AgN{{O}_{3}}\text{ }\xrightarrow{{}}\text{ }AgBr+HN{{O}_{3}}\]
  done clear
  C)
          \[{{H}_{2}}+B{{r}_{2}}\xrightarrow{{}}2HBr\]
  done clear
  D)
          \[CaO+{{H}_{2}}S{{O}_{4}}\xrightarrow{{}}CaS{{O}_{4}}+{{H}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer166) The number of atoms in\[4.25\text{ }gm\]. of \[N{{H}_{3}}\]is
  A)
   \[4.157\times {{10}^{23}}\]
  done clear
  B)
          \[3.343\times {{10}^{23}}\]
  done clear
  C)
         \[6.023\times {{10}^{23}}\]    
  done clear
  D)
          \[8.527\times {{10}^{23}}\]
  done clear
  View Answer play_arrow

• question_answer167) For the reaction,  \[C{{H}_{3}}COCl\xrightarrow{{{H}_{2}}/Pd}X,\] then X is
  A)
   \[C{{H}_{3}}CHO\]    
  done clear
  B)
          \[C{{H}_{3}}COOH\]
  done clear
  C)
         \[C{{H}_{3}}COC{{H}_{3}}\]  
  done clear
  D)
          \[C{{H}_{3}}C{{H}_{2}}OH\]
  done clear
  View Answer play_arrow

• question_answer168) The freezing point of a solution, prepared from \[1.25\text{ }gm\]. of a non-electrolyte and \[20gm\] of water, is \[271.9\text{ }K\]. If the molar depression constant is \[1.86\text{ }K/mol,\] then molar mass of the solute is
  A)
   \[103.3\]                            
  done clear
  B)
          \[105.7\]
  done clear
  C)
          \[107.9\]                            
  done clear
  D)
          \[109.3\]
  done clear
  View Answer play_arrow

• question_answer169) When \[C{{H}_{4}},\] \[{{C}_{2}}{{H}_{2}},\] \[{{C}_{2}}{{H}_{4}}\] and \[{{C}_{2}}{{H}_{6}}\]gasses   are passed through the Wolf bottle of \[~AgN{{O}_{3}},\] then which one of the following gas does not come out from the bottle?    
  A)
   \[C{{H}_{4}}\]                                  
  done clear
  B)
          \[{{C}_{2}}{{H}_{2}}\]
  done clear
  C)
          \[{{C}_{2}}{{H}_{4}}\]                                   
  done clear
  D)
          \[{{C}_{2}}{{H}_{6}}\]
  done clear
  View Answer play_arrow

• question_answer170) Both \[C{{H}_{4}}\]and \[{{C}_{2}}{{H}_{6}}\] can be prepared in one step by the reaction of
  A)
   \[C{{H}_{3}}Br\]       
  done clear
  B)
          \[C{{H}_{3}}C{{H}_{2}}OH\]
  done clear
  C)
          \[C{{H}_{3}}OH\]    
  done clear
  D)
          \[C{{H}_{3}}COC{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer171) An ideal solution is formed when its constituents
  A)
   are converted into ideal gases
  done clear
  B)
          have zero volume change
  done clear
  C)
          have zero heat of mixing
  done clear
  D)
          have both (b) and (c)
  done clear
  View Answer play_arrow

• question_answer172) A compound gives a yellow precipitate on warming with a aq. solution of\[NaOH\]. Its vapour density is 29. The compound is
  A)
   \[C{{H}_{3}}C{{H}_{2}}CHO\]
  done clear
  B)
          \[C{{H}_{3}}COC{{H}_{3}}\]
  done clear
  C)
          \[C{{H}_{3}}CHOHC{{H}_{3}}\]
  done clear
  D)
          \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH\]
  done clear
  View Answer play_arrow

• question_answer173) Which one of the following does not react with \[CuS{{O}_{4}}\]solution?
  A)
   \[Ag\]                                 
  done clear
  B)
          \[Fe\]
  done clear
  C)
          \[Mg\]                                
  done clear
  D)
          \[Zn\]
  done clear
  View Answer play_arrow

• question_answer174) Glycerol at \[530K\]reacts with oxalic acid to produce
  A)
   glyceraldehyde
  done clear
  B)
          allyl alcohol
  done clear
  C)
   formic acid    
  done clear
  D)
   acetic acid
  done clear
  View Answer play_arrow

• question_answer175) On hydrolysis, \[PC{{l}_{3}}\]gives
  A)
   \[{{H}_{3}}P{{O}_{3}}\]      
  done clear
  B)
   \[{{H}_{3}}P{{O}_{4}}\]
  done clear
  C)
   \[POC{{l}_{3}}\] 
  done clear
  D)
   \[HP{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer176) Bleaching powder is obtained by treating chlorine with
  A)
   \[CaC{{O}_{3}}\]      
  done clear
  B)
   \[Ca{{(OH)}_{2}}\]
  done clear
  C)
   \[CaO\]        
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer177) \[Mg\] burns in air to produce
  A)
   \[MgC{{O}_{3}}\]     
  done clear
  B)
   \[MgO\]
  done clear
  C)
   \[Mg3{{H}_{2}}\]  
  done clear
  D)
   \[MgO+M{{g}_{3}}{{N}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer178) Deficiency of vitamin E causes
  A)
   scurvy                                 
  done clear
  B)
   beri-beri
  done clear
  C)
   antifertility    
  done clear
  D)
          rickets
  done clear
  View Answer play_arrow

• question_answer179) Total number of electrons contained in all the p-orbitals of bromine is
  A)
   \[5\]                                    
  done clear
  B)
   \[17\]
  done clear
  C)
   \[19\]                  
  done clear
  D)
          \[23\]
  done clear
  View Answer play_arrow

• question_answer180) How many times a solution of \[pH=2\]has higher acidity than the solution of \[pH=6\]
  A)
   \[4\]                                    
  done clear
  B)
   \[12\]
  done clear
  C)
   \[400\]                
  done clear
  D)
          \[10000\]
  done clear
  View Answer play_arrow

• question_answer181) The raw material used in Fischer Tropsch process for manufacture of synthetic petrol is
  A)
   producer gas
  done clear
  B)
   coal gas
  done clear
  C)
   water gas
  done clear
  D)
   water gas + excess of Hydrogen
  done clear
  View Answer play_arrow

• question_answer182) Which one of the following acid possesses oxidizing, reducing and complex forming properties?
  A)
   \[HN{{O}_{3}}\]                              
  done clear
  B)
   \[HCl\]
  done clear
  C)
   \[{{H}_{2}}S{{O}_{4}}\]                
  done clear
  D)
          \[HN{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer183) In the first order reaction, half of the reaction is completed in 100 second. The time for 99% reaction to occur will be
  A)
   \[664.64\text{ }sec\]     
  done clear
  B)
   \[646.6\text{ }sec\]
  done clear
  C)
  \[660.9\text{ }sec~\]     
  done clear
  D)
   \[654.5\text{ }sec\]
  done clear
  View Answer play_arrow

• question_answer184) Azimuthal quantum number \[(l)=2,\] then the value of principal quantum number (n)is
  A)
   \[1\]                                    
  done clear
  B)
   \[2\]
  done clear
  C)
   \[3\]                    
  done clear
  D)
          \[4\]
  done clear
  View Answer play_arrow

• question_answer185) The product obtained by heating 3, 3-dimethyl-2-butanol with \[{{H}_{2}}S{{O}_{4}}\]is
  A)
   3, 3-dimethyl -1-butene
  done clear
  B)
   2, 3 -dimethyl-1-butene
  done clear
  C)
   2, 3-dimethyl-2-butene
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer186) \[KI\] reacts with \[CuS{{O}_{4}}\]to produce
  A)
   \[{{K}_{2}}S{{O}_{4}}+C{{u}_{2}}{{l}_{2}}+{{I}_{2}}\]
  done clear
  B)
   \[Cu{{I}_{2}}+{{K}_{2}}S{{O}_{4}}\]
  done clear
  C)
   \[C{{u}_{2}}{{I}_{2}}+{{K}_{2}}S{{O}_{4}}\]
  done clear
  D)
   \[{{K}_{2}}S{{O}_{4}}+Cu{{I}_{2}}+{{I}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer187) Which one of the following have least \[_{p}{{K}_{a}}\] value?
  A)
   \[CC{{l}_{3}}COOH\]
  done clear
  B)
   \[C{{H}_{2}}ClCOOH\]
  done clear
  C)
   \[C{{F}_{3}}COOH\]
  done clear
  D)
   \[C{{H}_{3}}COOH\]
  done clear
  View Answer play_arrow

• question_answer188) lonization potential is maximum for
  A)
   \[Al\]                                   
  done clear
  B)
   \[In\]
  done clear
  C)
   \[Ga\]                 
  done clear
  D)
          \[B\]
  done clear
  View Answer play_arrow

• question_answer189) Acetylene contains number of bonds
  A)
   \[5\sigma \] and \[3\pi \]
  done clear
  B)
   \[5\sigma \] and \[1\pi \]
  done clear
  C)
   \[3\sigma \] and \[2\pi \]    
  done clear
  D)
   \[4\sigma \] and \[1\pi \]
  done clear
  View Answer play_arrow

• question_answer190) Ethylidene dibromide on heating with metallic sodium in ether solution produce
  A)
   1-Butene
  done clear
  B)
   Ethylene
  done clear
  C)
   Ethane      
  done clear
  D)
   2-Butene
  done clear
  View Answer play_arrow

• question_answer191) lonization constant of \[C{{H}_{3}}COOH\]is\[1.8\times {{10}^{-5}}\]. The concentration of \[{{H}^{+}}\] ion in \[0.1M\] solution is
  A)
   \[1.3\times {{10}^{-2}}M\]
  done clear
  B)
   \[1.8\times {{10}^{-5}}M\]
  done clear
  C)
   \[1.8\times {{10}^{-6}}M\]
  done clear
  D)
   \[1.34\times {{10}^{-3}}M\]
  done clear
  View Answer play_arrow

• question_answer192) Which one of the following pair of elements has similar properties?
  A)
   \[10,12\]
  done clear
  B)
   \[11,20\]
  done clear
  C)
   \[21,33\]
  done clear
  D)
   \[13,31\]
  done clear
  View Answer play_arrow

• question_answer193) Borazine is represented by the mol. formula
  A)
   \[{{B}_{3}}{{N}_{3}}{{H}_{6}}\]     
  done clear
  B)
   \[{{B}_{4}}{{N}_{2}}{{H}_{6}}\]
  done clear
  C)
   \[{{B}_{5}}N{{H}_{6}}\]      
  done clear
  D)
   \[{{B}_{6}}{{H}_{6}}\]
  done clear
  View Answer play_arrow

• question_answer194) The increasing order of acidity of \[{{H}_{2}}{{O}_{2}},\]\[{{H}_{2}}O\] and \[C{{O}_{2}}\]is
  A)
   \[{{H}_{2}}{{O}_{2}}>{{H}_{2}}O>C{{O}_{2}}\]
  done clear
  B)
   \[{{H}_{2}}{{O}_{2}}>C{{O}_{2}}>{{H}_{2}}O\]
  done clear
  C)
   \[{{H}_{2}}O>{{H}_{2}}{{O}_{2}}>C{{O}_{2}}\]   
  done clear
  D)
   \[{{H}_{2}}O<{{H}_{2}}{{O}_{2}}>C{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer195) Red lead is
  A)
   \[PbO\]        
  done clear
  B)
   \[Pb{{O}_{2}}\]
  done clear
  C)
   \[P{{b}_{3}}{{O}_{4}}\]       
  done clear
  D)
   \[P{{b}_{4}}{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer196) A compound having mol., \[mass=78\]contains \[C=92.31%\]and \[H=7.69%.\]Its molecular formula is
  A)
   \[{{C}_{5}}{{H}_{12}}\]     
  done clear
  B)
   \[{{C}_{5}}{{H}_{18}}\]
  done clear
  C)
   \[{{C}_{4}}{{H}_{30}}\]       
  done clear
  D)
   \[{{C}_{6}}{{H}_{6}}\]
  done clear
  View Answer play_arrow

• question_answer197) Anti Markownikoffs rule addition reaction is not observed in:
  A)
   pent-2-ene
  done clear
  B)
   but-2-ene
  done clear
  C)
   1-butene      
  done clear
  D)
   propene
  done clear
  View Answer play_arrow

• question_answer198) The  hybridization  of  carbon   in \[C{{H}_{3}}-CH=C=C{{H}_{2}}\]is
  A)
   \[s{{p}^{3}}s{{p}^{3}}s{{p}^{2}}s{{p}^{2}}\]
  done clear
  B)
   \[s{{p}^{3}}s{{p}^{2}}sp\,s{{p}^{3}}\]
  done clear
  C)
   \[s{{p}^{3}}s{{p}^{3}}s{{p}^{2}}s{{p}^{3}}\]
  done clear
  D)
   \[s{{p}^{3}}s{{p}^{2}}sp\text{ }s{{p}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer199) Helium is filled in balloons in place of hydrogen as it is
  A)
   non-inflammable
  done clear
  B)
   lighter than hydrogen
  done clear
  C)
   frequently available
  done clear
  D)
   radioactive
  done clear
  View Answer play_arrow

• question_answer200) Hesss law states
  A)
   energy of formation of a compound does not depend on path
  done clear
  B)
   energy of formation of a compound depends on path
  done clear
  C)
   both (a) and (b)
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer201) Heart sound DUB is caused due to closing of
  A)
   valve                                   
  done clear
  B)
   tricuspid valve
  done clear
  C)
   semilunar valve
  done clear
  D)
          None of these
  done clear
  View Answer play_arrow

• question_answer202) Ornithine cycle is found in
  A)
   liver                     
  done clear
  B)
          kidney
  done clear
  C)
   heart                   
  done clear
  D)
          muscles
  done clear
  View Answer play_arrow

• question_answer203) Goitre is a  pathological  condition associated with:
  A)
   glucagon                            
  done clear
  B)
   thyroxine
  done clear
  C)
   progesterone  
  done clear
  D)
          testosterone
  done clear
  View Answer play_arrow

• question_answer204) Connecting link between reptiles and birds is:
  A)
   Dodo                                   
  done clear
  B)
   Dimetrodon
  done clear
  C)
   Sphenodon     
  done clear
  D)
          Archaeopteryx
  done clear
  View Answer play_arrow

• question_answer205) Which one of the following is correct?
  A)
   all enzymes are proteins
  done clear
  B)
   all proteins are enzymes
  done clear
  C)
   some enzymes are proteins
  done clear
  D)
   all fats are enzymes
  done clear
  View Answer play_arrow

• question_answer206) The site of fertilization in mammals is
  A)
   ovary                                   
  done clear
  B)
   abdominal
  done clear
  C)
   uterus                 
  done clear
  D)
          fallopian tube
  done clear
  View Answer play_arrow

• question_answer207) Natural parthenogenesis is found in?
  A)
   housefly                            
  done clear
  B)
   honey bee
  done clear
  C)
   Drosopiula     
  done clear
  D)
          all of these
  done clear
  View Answer play_arrow

• question_answer208) Sex hormones can work without the help of
  A)
   insulin                                 
  done clear
  B)
   placenta
  done clear
  C)
   pituitary             
  done clear
  D)
          gonadotropins
  done clear
  View Answer play_arrow

• question_answer209) Mammals excrete
  A)
   urea                                     
  done clear
  B)
   uric acid
  done clear
  C)
   ammonia           
  done clear
  D)
          all of these
  done clear
  View Answer play_arrow

• question_answer210) Correct sequence in cell type is
  A)
   \[{{\text{G}}_{\text{1}}}\text{,}{{\text{G}}_{\text{2,}}}\text{M}\text{.S}\]        
  done clear
  B)
   \[{{\text{G}}_{\text{1}}}\text{,S,}{{\text{G}}_{\text{2,}}}\text{M}\]
  done clear
  C)
   \[{{\text{G}}_{\text{1}}}\text{,M,S,}{{\text{G}}_{1}}\]   
  done clear
  D)
          \[\text{S,M,}{{\text{G}}_{1,}}{{G}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer211) Vestigeal organ in human being is
  A)
   incisor                                 
  done clear
  B)
   canines
  done clear
  C)
   molar                  
  done clear
  D)
          premolar
  done clear
  View Answer play_arrow

• question_answer212) Aerobic respiration is related with           
  A)
   mitochondria
  done clear
  B)
   plasma membrane
  done clear
  C)
   golgi bodies
  done clear
  D)
   endoplasmic reticulum
  done clear
  View Answer play_arrow

• question_answer213) The connection between two cells is
  A)
   plasmadesmata              
  done clear
  B)
   microfilaments
  done clear
  C)
   sieve tube    
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer214) Natural pearl is
  A)
   a mollusc                           
  done clear
  B)
   an annelid
  done clear
  C)
   an arthropod  
  done clear
  D)
          an echinodermate
  done clear
  View Answer play_arrow

• question_answer215) Salient feature of Arthropoda is
  A)
   aquatic and free living
  done clear
  B)
   chitinous exesrction and jointed appendeges
  done clear
  C)
   both a and b
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer216) Miller and Urey performed an experiment to prove the origin of life. They took gases \[N{{H}_{3}}\] and \[{{H}_{2}}\] along with
  A)
   \[{{N}_{2}}\] and \[{{H}_{2}}O\]              
  done clear
  B)
   \[{{H}_{2}}O\] and \[C{{H}_{4}}\]                                          
  done clear
  C)
   \[C{{H}_{4}}\] and \[{{N}_{2}}\]
  done clear
  D)
   \[C{{O}_{2}}\] and \[N{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer217) Spermatogenesis is induced by
  A)
   FSH                                      
  done clear
  B)
   ACTH   
  done clear
  C)
          ICSH                     
  done clear
  D)
          ATH         
  done clear
  View Answer play_arrow

• question_answer218) Which one of the following is the most effective in Ascaris infection?      
  A)
   chloroquin        
  done clear
  B)
   Cinchona  
  done clear
  C)
   Colchicum     
  done clear
  D)
   oil of Chenopodium
  done clear
  View Answer play_arrow

• question_answer219) Which one of the following is chemical transmitter for neuro impulse conduction?
  A)
   glycine                                
  done clear
  B)
   GABA                  
  done clear
  C)
   adrenalin           
  done clear
  D)
   acetylcholine  
  done clear
  View Answer play_arrow

• question_answer220) During hibernation, frogs respiration is
  A)
   cutaneous                 
  done clear
  B)
   pulmonary         
  done clear
  C)
              buccopharyngeal
  done clear
  D)
         pharyngeal
  done clear
  View Answer play_arrow

• question_answer221) Blood carries \[C{{O}_{2}}\] mainly in which form?
  A)
   \[Hb.C{{O}_{2}}\]
  done clear
  B)
   \[NaHC{{O}_{3}}\]
  done clear
  C)
   carbonic acid      
  done clear
  D)
                 \[Hb.C{{O}_{2}}\] and carbon monoxide
  done clear
  View Answer play_arrow

• question_answer222) Which one of the following is necessary to start clotting of blood?
  A)
   heparin
  done clear
  B)
   serotonin                    
  done clear
  C)
   thromboplastin and \[C{{a}^{++}}\]
  done clear
  D)
   fibrinogen and prothrombin  
  done clear
  View Answer play_arrow

• question_answer223) During oxidative phosphorylation, the net gain of ATP is
  A)
   40                                         
  done clear
  B)
   38                         
  done clear
  C)
   34                         
  done clear
  D)
          30
  done clear
  View Answer play_arrow

• question_answer224) Which of the following pairs is correct?
  A)
   annelida-polychaeta-leech
  done clear
  B)
   arthropoda-crustacea-cockroach
  done clear
  C)
   mollusca-cephalopoda-Octopus    
  done clear
  D)
   protozoa-Hydra               
  done clear
  View Answer play_arrow

• question_answer225) Nerve impulse initiates with the movements of
  A)
   \[{{K}^{+}}\]                                     
  done clear
  B)
   \[N{{a}^{+}}\]
  done clear
  C)
   \[C{{a}^{+}}\]                  
  done clear
  D)
          \[M{{g}^{+}}\]
  done clear
  View Answer play_arrow

• question_answer226) Spindle fibres of a mitotic cells are made Up of
  A)
   actin                                    
  done clear
  B)
   myosin
  done clear
  C)
   collagen             
  done clear
  D)
          tubutin
  done clear
  View Answer play_arrow

• question_answer227) The migrating birds rely on the
  A)
   anaerobic oxidation of proteins
  done clear
  B)
   highly efficient aerobic oxidation of fats
  done clear
  C)
   anaerobic oxidation of carbohydrates
  done clear
  D)
   all of these
  done clear
  View Answer play_arrow

• question_answer228) Erythrocytes of adult rabbit and other mammals are formed in
  A)
   liver                                     
  done clear
  B)
   spleen
  done clear
  C)
   kidney                
  done clear
  D)
          red bone marrow
  done clear
  View Answer play_arrow

• question_answer229) Pseudocoel is a cavity found in
  A)
   Hydra                                  
  done clear
  B)
   Ascaris
  done clear
  C)
   housefly            
  done clear
  D)
          sponge
  done clear
  View Answer play_arrow

• question_answer230) Sarcolemma is a membrane found over
  A)
   heart                                   
  done clear
  B)
   cardiac muscle
  done clear
  C)
   muscle fibre     
  done clear
  D)
   nerve fibre
  done clear
  View Answer play_arrow

• question_answer231) Heparin
  A)
   is antiserum                     
  done clear
  B)
   helps in clotting
  done clear
  C)
   helps in secretion
  done clear
  D)
   is anticoagulant
  done clear
  View Answer play_arrow

• question_answer232) Trichocyst and nematocysts are meant  for
  A)
   defense                             
  done clear
  B)
   nutrition
  done clear
  C)
   respiration    
  done clear
  D)
          excretion
  done clear
  View Answer play_arrow

• question_answer233) Digestion and distribution of nutrients both functions are performed by
  A)
   blastocoels                                       
  done clear
  B)
   coelom
  done clear
  C)
   spongocoel                       
  done clear
  D)
   gastrovascular cavity
  done clear
  View Answer play_arrow

• question_answer234) In mammals the digestion of starch starts from
  A)
   mouth                                
  done clear
  B)
   stomach
  done clear
  C)
   oesophagus  
  done clear
  D)
          duodenum
  done clear
  View Answer play_arrow

• question_answer235) In which of the following, Nissls granules are found?
  A)
   liver cells                            
  done clear
  B)
   nerve cells
  done clear
  C)
   intestinal cells  
  done clear
  D)
   uriniferous tubules
  done clear
  View Answer play_arrow

• question_answer236) In sponges, food is stored in
  A)
   porocytes          
  done clear
  B)
   choanocytes
  done clear
  C)
   amoebocytes  
  done clear
  D)
          thesocytes
  done clear
  View Answer play_arrow

• question_answer237) Largest egg is of
  A)
   PPLO                   
  done clear
  B)
   Ostrich
  done clear
  C)
   Hydra  
  done clear
  D)
          Periplanata Americana
  done clear
  View Answer play_arrow

• question_answer238) Which one of the following is common in annelida and arthropods?
  A)
   basal nerve cord
  done clear
  B)
   ventral nerve cord
  done clear
  C)
   dorsal nerve cord
  done clear
  D)
   anterior nerve cord
  done clear
  View Answer play_arrow

• question_answer239) When bath-sponges dries up, which of the following is left?
  A)
   spicules                              
  done clear
  B)
   tentacles
  done clear
  C)
   spongin fibres
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer240) Digestion of cellulose in non-ruminants takes place in
  A)
   caecum                              
  done clear
  B)
   colon
  done clear
  C)
   small intestine
  done clear
  D)
   large intestine
  done clear
  View Answer play_arrow

• question_answer241) DNA is found in
  A)
   nucleus only
  done clear
  B)
   cytoplasm only
  done clear
  C)
   nucleus and cytoplasm
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer242) Cellular respiration occurs in
  A)
   nucleus                              
  done clear
  B)
   ribosomes
  done clear
  C)
   golgi body    
  done clear
  D)
          mitochondria
  done clear
  View Answer play_arrow

• question_answer243) Joint between humerus and ulna is
  A)
   saddle joint      
  done clear
  B)
   hinge joint
  done clear
  C)
   fibrous joint   
  done clear
  D)
          ball and socket
  done clear
  View Answer play_arrow

• question_answer244) Who discovered that malaria is transmitted by mosquitoes?
  A)
   Grassi                                  
  done clear
  B)
   Laveron
  done clear
  C)
   Lancisi                 
  done clear
  D)
          Ronald Ross
  done clear
  View Answer play_arrow

• question_answer245) Which one of the following is a source of energy for muscle contraction
  A)
   actin                                    
  done clear
  B)
   myosin
  done clear
  C)
   ATP                                      
  done clear
  D)
   actomyosin
  done clear
  View Answer play_arrow

• question_answer246) Tube feet are locomotary organs found in
  A)
   annelids                             
  done clear
  B)
   Mollusca
  done clear
  C)
   arthropods   
  done clear
  D)
          echinoderms
  done clear
  View Answer play_arrow

• question_answer247) Anti-A and Anti-B antibodies are not found in which of the following blood group?
  A)
   AB                                        
  done clear
  B)
   O
  done clear
  C)
   A                           
  done clear
  D)
          B
  done clear
  View Answer play_arrow

• question_answer248) Incubation period of Plasmodium vivax is
  A)
   4 days                                 
  done clear
  B)
   6 days
  done clear
  C)
   14 days               
  done clear
  D)
          30 days
  done clear
  View Answer play_arrow

• question_answer249) Sympathetic nervous system induces
  A)
   heartbeat
  done clear
  B)
   secretion of semen
  done clear
  C)
   secretion of saliva
  done clear
  D)
   secretion of digestive juices
  done clear
  View Answer play_arrow

• question_answer250) Organ of Corti is found in
  A)
   heart                                   
  done clear
  B)
   kidneys
  done clear
  C)
   inner ear            
  done clear
  D)
          nasal chamber
  done clear
  View Answer play_arrow

• question_answer251) Apical dominance is caused by
  A)
   \[\text{I}\]AA                                  
  done clear
  B)
   \[\text{I}\]BA
  done clear
  C)
   2, 4-D                  
  done clear
  D)
          2, 4, 5-T
  done clear
  View Answer play_arrow

• question_answer252) Spore of Funnria, on germination, produces
  A)
   protonema       
  done clear
  B)
   antheridia
  done clear
  C)
   archegonia        
  done clear
  D)
   vegetative body
  done clear
  View Answer play_arrow

• question_answer253) Plasmids are
  A)
   viral RNA in host cells
  done clear
  B)
   viral DNA in host cells
  done clear
  C)
   extra non-genetic element
  done clear
  D)
   extrachromosomal material of E.coli
  done clear
  View Answer play_arrow

• question_answer254) During food chain, maximum energy is stored in
  A)
   producer
  done clear
  B)
   primary consumer
  done clear
  C)
   secondary consumer
  done clear
  D)
   decomposer
  done clear
  View Answer play_arrow

• question_answer255) Cold treatment of seeds is called
  A)
   vernalization
  done clear
  B)
   stratification
  done clear
  C)
   devernalization
  done clear
  D)
   photophosphorylation       
  done clear
  View Answer play_arrow

• question_answer256) Bordered pits are generally found in
  A)
   dicots                                  
  done clear
  B)
   monocots      
  done clear
  C)
   gymnosperms
  done clear
  D)
          bryophytes    
  done clear
  View Answer play_arrow

• question_answer257) One gene-one enzyme hypothesis was given by                          
  A)
   Mendel      
  done clear
  B)
   Darwin      
  done clear
  C)
   Robert Hook  
  done clear
  D)
   Beadle and Tatum
  done clear
  View Answer play_arrow

• question_answer258) Cell wall of gram positive bacteria is made up of                       
  A)
   murein                               
  done clear
  B)
   cellulose             
  done clear
  C)
                lipid and protein
  done clear
  D)
          cellulose and lipid                 
  done clear
  View Answer play_arrow

• question_answer259) Which one of the following is a monocarpic plant?                
  A)
   Pear                                     
  done clear
  B)
   Citrus        
  done clear
  C)
   Mango                
  done clear
  D)
          Bambusa       
  done clear
  View Answer play_arrow

• question_answer260) Megasporophyll of Cycas is equivalent to
  A)
   stamen                               
  done clear
  B)
   sepal          
  done clear
  C)
   petal                    
  done clear
  D)
          carpel        
  done clear
  View Answer play_arrow

• question_answer261) The term leptome is used for        
  A)
   xylem                                  
  done clear
  B)
   phloem      
  done clear
  C)
   endodermis   
  done clear
  D)
          pericycle    
  done clear
  View Answer play_arrow

• question_answer262) The formation of fruits without                 fertilization is called
  A)
   polyspory                          
  done clear
  B)
   parthenogenesis
  done clear
  C)
   polyembryony
  done clear
  D)
   parthenocarpy
  done clear
  View Answer play_arrow

• question_answer263) An alga which is rich in proteins is    
  A)
   Ulothrix                              
  done clear
  B)
   Spirogyra     
  done clear
  C)
   Nostoc                                
  done clear
  D)
   Chlorella
  done clear
  View Answer play_arrow

• question_answer264)      Vivipary is seen in              
  A)
   mangroves       
  done clear
  B)
   xerophytes    
  done clear
  C)
   hydrophytes  
  done clear
  D)
          mesophytes   
  done clear
  View Answer play_arrow

• question_answer265) Which one of the following is a gymnosperm                    
  A)
   Mango                                
  done clear
  B)
   Walnut     
  done clear
  C)
   Funaria              
  done clear
  D)
          Chilgoza     
  done clear
  View Answer play_arrow

• question_answer266) Mycorrhiza helps in
  A)
   respiration
  done clear
  B)
   water absorption
  done clear
  C)
   nutrient absorption
  done clear
  D)
   phosphate absorption
  done clear
  View Answer play_arrow

• question_answer267) Bracts enclosing a cluster of flowers are                known as
  A)
   bracteate          
  done clear
  B)
   involucre
  done clear
  C)
   petaloid             
  done clear
  D)
          polysepalous
  done clear
  View Answer play_arrow

• question_answer268) In Funaria, the number of peristomial teeth is
  A)
   6                                            
  done clear
  B)
   10
  done clear
  C)
   16                         
  done clear
  D)
          32
  done clear
  View Answer play_arrow

• question_answer269) The lateral roots originate from
  A)
   exodermis        
  done clear
  B)
   endodermis
  done clear
  C)
   pericycle            
  done clear
  D)
          vascular bundles
  done clear
  View Answer play_arrow

• question_answer270) Role of calyx and corolla in fruit formation is
  A)
   promotory        
  done clear
  B)
   ineffective
  done clear
  C)
   essential       
  done clear
  D)
          all of these
  done clear
  View Answer play_arrow

• question_answer271) Separation of linked genes is called
  A)
   linkage                                
  done clear
  B)
   segregation
  done clear
  C)
   crossing over  
  done clear
  D)
   genetic mutation
  done clear
  View Answer play_arrow

• question_answer272) Anti-viral substance is
  A)
   bacteria                              
  done clear
  B)
   antibody
  done clear
  C)
   antigen               
  done clear
  D)
          interferon
  done clear
  View Answer play_arrow

• question_answer273) The enzyme which is used for replication is
  A)
   DNA ase                             
  done clear
  B)
   aldol ase
  done clear
  C)
   RNA polymerase            
  done clear
  D)
   DNA polymerase
  done clear
  View Answer play_arrow

• question_answer274) \[{{C}_{4}}\]-cycle is found in
  A)
   fir                                          
  done clear
  B)
   mango
  done clear
  C)
   sugarcane    
  done clear
  D)
          none of these
  done clear
  View Answer play_arrow

• question_answer275) RuBP is found in
  A)
   ETS                                       
  done clear
  B)
   Calvin cycle
  done clear
  C)
   \[{{C}_{4}}\] plants      
  done clear
  D)
                          Krebs cycle
  done clear
  View Answer play_arrow

• question_answer276) Incipient nucleus is found in
  A)
   myxophyceae
  done clear
  B)
   phaeophyceae
  done clear
  C)
   rhodophyceae
  done clear
  D)
          chlorophyceae
  done clear
  View Answer play_arrow

• question_answer277) Last electron receptor in respiration is
  A)
   \[C{{O}_{2}}\]                                  
  done clear
  B)
   \[{{O}_{2}}\]
  done clear
  C)
   \[{{H}_{2}}\]                     
  done clear
  D)
          NADH
  done clear
  View Answer play_arrow

• question_answer278) Diadelphous condition is found in
  A)
   rosaceae            
  done clear
  B)
          papilionaceae
  done clear
  C)
   leguminosae    
  done clear
  D)
   cucurbitaceae
  done clear
  View Answer play_arrow

• question_answer279) Which of the following algae is parasitic?
  A)
   Nostoc                                
  done clear
  B)
   Rhodomenia
  done clear
  C)
   Cephaleuros    
  done clear
  D)
          Polysiphonia
  done clear
  View Answer play_arrow

• question_answer280) Glycolysis occurs in
  A)
   grana                                   
  done clear
  B)
   stroma
  done clear
  C)
   cytosol                
  done clear
  D)
          mitochondria
  done clear
  View Answer play_arrow

• question_answer281) Nucleosides have
  A)
   purine + pyrimidine
  done clear
  B)
   purine or pyrimidine + sugar
  done clear
  C)
   purine + sugar + phosphate
  done clear
  D)
   purine + pyrimidine + phosphate
  done clear
  View Answer play_arrow

• question_answer282) Cladodes are found in
  A)
   Asparagus        
  done clear
  B)
   Opuntia
  done clear
  C)
   Parkmsonia    
  done clear
  D)
          Psidium guajava
  done clear
  View Answer play_arrow

• question_answer283) R.Q. (respiratory quotient) is less than 1 in
  A)
   fat                                        
  done clear
  B)
   glucose
  done clear
  C)
   fructose             
  done clear
  D)
          organic acid
  done clear
  View Answer play_arrow

• question_answer284) Blue-green algae has
  A)
   chlorophyll b    
  done clear
  B)
   xanthophyll
  done clear
  C)
   phycocyanin
  done clear
  D)
          fucoxanthin
  done clear
  View Answer play_arrow

• question_answer285) Connecting link between glycolysis and Krebs cycle is
  A)
   PGA                     
  done clear
  B)
          ketone
  done clear
  C)
   aldehyde           
  done clear
  D)
          acetyl-Co A
  done clear
  View Answer play_arrow

• question_answer286) Which of the following fibres is not a plant product?
  A)
   flax                                       
  done clear
  B)
   cotton
  done clear
  C)
   hemp                  
  done clear
  D)
          silk
  done clear
  View Answer play_arrow

• question_answer287) Which one of the following is not commercially produced by yeast?
  A)
   enzyme                              
  done clear
  B)
   vitamin
  done clear
  C)
   hormone           
  done clear
  D)
          riboflavin
  done clear
  View Answer play_arrow

• question_answer288) Alcoholic fermentation takes place in the presence of
  A)
   maltase                              
  done clear
  B)
   zymnse
  done clear
  C)
   amylase             
  done clear
  D)
          invertase
  done clear
  View Answer play_arrow

• question_answer289) Which one of the following does not grow in artificial media?
  A)
   TMV                                    
  done clear
  B)
   bacteria
  done clear
  C)
   yeast                   
  done clear
  D)
          Rhizopus
  done clear
  View Answer play_arrow

• question_answer290) The RNA like particle, which causes disease is
  A)
   virion                                   
  done clear
  B)
   viroid
  done clear
  C)
   prion                   
  done clear
  D)
          mycoplasma
  done clear
  View Answer play_arrow

• question_answer291) Phytochrome is found in
  A)
   algae                   
  done clear
  B)
   flowering plants
  done clear
  C)
   fungi    
  done clear
  D)
                          vascular cryptogams
  done clear
  View Answer play_arrow

• question_answer292) Replication of DNA takes place during
  A)
   S-phase                              
  done clear
  B)
   prophase
  done clear
  C)
   metaphase       
  done clear
  D)
          anaphase
  done clear
  View Answer play_arrow

• question_answer293) Ribosomes are particles about \[200\overset{\text{o}}{\mathop{\text{A}}}\,\] units in diameter consisting of protein and RNA. The percentage of protein and RNA respectively is:
  A)
   60% and 40%    
  done clear
  B)
   40% and 60%
  done clear
  C)
   80% and 20%    
  done clear
  D)
   50% and 50%
  done clear
  View Answer play_arrow

• question_answer294) Which of the following process takes place in mitochondria?
  A)
   photolysis                    
  done clear
  B)
   photophosphorylation       
  done clear
  C)
   carboxylation
  done clear
  D)
   oxidative phosphorylation    
  done clear
  View Answer play_arrow

• question_answer295) Fluid mosaic model of cell membrane was given by
  A)
   Beadle and Tatum
  done clear
  B)
   Singer and Nicolson
  done clear
  C)
   Watson and Crick
  done clear
  D)
   Robertson and Miller
  done clear
  View Answer play_arrow

• question_answer296) Late blight of potato is caused by
  A)
   Rhizopus
  done clear
  B)
   Ustilago
  done clear
  C)
   Altemnria solani               
  done clear
  D)
   Phytopthorn infestens          
  done clear
  View Answer play_arrow

• question_answer297) Cell membrane is composed of
  A)
   protein                               
  done clear
  B)
   phospholipid
  done clear
  C)
   carbohydrate  
  done clear
  D)
          lipid and potein
  done clear
  View Answer play_arrow

• question_answer298) Binomial nomenclature was given by
  A)
   Darwin                                
  done clear
  B)
   Lamarck
  done clear
  C)
   Linnaeus                            
  done clear
  D)
   Theophrastus
  done clear
  View Answer play_arrow

• question_answer299) Genetic material of virus is
  A)
   RNA                             
  done clear
  B)
   DNA                     
  done clear
  C)
        carbohydrate     
  done clear
  D)
             either RNA or DNA          
  done clear
  View Answer play_arrow

• question_answer300) Suicidal bags are                
  A)
   lysosomes         
  done clear
  B)
   golgi bodies
  done clear
  C)
   ribosomes     
  done clear
  D)
          chloroplast
  done clear
  View Answer play_arrow