Solved papers for Haryana PMT Haryana PMT Solved Paper-2001

done Haryana PMT Solved Paper-2001 Total Questions - 220

• question_answer1) The magnetic flux threading a coil change from \[24\times {{10}^{-3}}wb\] to \[18\times {{10}^{-3}}\] wb in sec. Then the induced e.m.f. is:
  A)
   0.4            
  done clear
  B)
   0.6
  done clear
  C)
   4.8                                        
  done clear
  D)
   2.4
  done clear
  View Answer play_arrow

• question_answer2) If the temperature of the sun becomes thrice, the rate of energy received on earth will be increased by a factor of :
  A)
   81              
  done clear
  B)
   27
  done clear
  C)
   \[\frac{1}{3}\]                                  
  done clear
  D)
   243
  done clear
  View Answer play_arrow

• question_answer3) What is the order of the forbidden gap in the energy bands of silicon?
  A)
   1.5 eV                                 
  done clear
  B)
   1.1 eV
  done clear
  C)
   1.4 eV                                 
  done clear
  D)
   1.0 eV
  done clear
  View Answer play_arrow

• question_answer4) The refractive index of diamond is 2.0, velocity of light in diamond in cm per second is, approximately :
  A)
   \[3\times {{10}^{8}}cm/s\]        
  done clear
  B)
   \[3\times {{10}^{12}}cm/s\]
  done clear
  C)
   \[1.5\times {{10}^{8}}cm/s\]     
  done clear
  D)
   \[1.5\times {{10}^{10}}cm/s\]
  done clear
  View Answer play_arrow

• question_answer5) Power factor of purely inductive circuit is :
  A)
  \[\frac{R}{\sqrt{{{R}^{2}}+}X_{2L}^{{}}}\]                             
  done clear
  B)
  \[\frac{{{R}^{2}}}{\sqrt{{{R}^{2}}+}{{X}^{2}}}\]
  done clear
  C)
   1                                            
  done clear
  D)
   zero
  done clear
  View Answer play_arrow

• question_answer6) Maximum penetrating power is that of :
  A)
   \[y\]-rays                                          
  done clear
  B)
   \[\beta \]-rays
  done clear
  C)
   ultraviolet rays                
  done clear
  D)
   infrared rays
  done clear
  View Answer play_arrow

• question_answer7) The masses 1 kg and 4 kg are moving with equal kinetic energy. The ratio of their momenta is :
  A)
   1:4                                        
  done clear
  B)
   2:1
  done clear
  C)
   \[\sqrt{2}:1\]                                   
  done clear
  D)
   1:2
  done clear
  View Answer play_arrow

• question_answer8) The work done by the centripetal force \[F\] when the body completes one rotation around the circle of radius R is :
  A)
   zero                                     
  done clear
  B)
   R F
  done clear
  C)
   2RF                                       
  done clear
  D)
   27\[\pi \]RF
  done clear
  View Answer play_arrow

• question_answer9) In Youngs double slits experiment, when wavelength used is \[6000\overset{\text{o}}{\mathop{\text{A}}}\,\] and the screen is 40 cm from the slits, the fringes are 0.012 cm apart. What is the distance between the slits?
  A)
   0.2 cm                                 
  done clear
  B)
   0.24 cm
  done clear
  C)
   2.4 cm                                 
  done clear
  D)
   0.024 cm
  done clear
  View Answer play_arrow

• question_answer10) Light of frequency \[5\times {{10}^{14}}Hz\]is travelling in a medium of refractive index 1.5. What is its wavelength? \[(C=3\times {{10}^{8}}m/s)\]
  A)
  \[4000\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  B)
  \[4500\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
  \[6000\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  D)
  \[9000\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer11) A body is walking away from a wall towards an observer at a speed of 1 m/s and blows a whistle whose frequency is 680 Hz. The number of beats heard by the observer per second is  (velocity of sound in air = 340 m/s)
  A)
   4                                            
  done clear
  B)
   8
  done clear
  C)
   2                                            
  done clear
  D)
   zero
  done clear
  View Answer play_arrow

• question_answer12) An X-ray tube is operated on 30 kV. What is   the minimum wavelength emitted\[(h=6.6\times {{10}^{-34}})\,\text{Js,}\,\text{c=3}\times \text{1}{{\text{0}}^{8}}\,m/s,\]\[e=1.6\times {{10}^{-19}}C):\]
  A)
  \[6.6\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  B)
  \[1.2\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
  \[0.133\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  D)
  \[0.41\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer13) In hydrogen atom,  electron  makes transition from \[n\] = 4 to \[n\]=1 level, recoil momentum of H-atom will be :
  A)
   \[6.8\times {{10}^{-}}^{24}Nm\]             
  done clear
  B)
   \[3.4\times {{10}^{-}}^{24}Nm\]
  done clear
  C)
   \[6.8\times {{10}^{-}}^{27}Nm\]             
  done clear
  D)
   \[3.4\times {{10}^{-}}^{27}Nm\]
  done clear
  View Answer play_arrow

• question_answer14) On a glass plate a light wave is incident at an angle of \[60{}^\circ \]. If the reflected and refracted waves are mutually perpendicular, the  refractive index of material is :
  A)
  \[\frac{1}{\sqrt{3}}\]                                     
  done clear
  B)
  \[\frac{3}{2}\]
  done clear
  C)
  \[\sqrt{3}\]                                        
  done clear
  D)
  \[\frac{\sqrt{3}}{2}\]
  done clear
  View Answer play_arrow

• question_answer15) The   equation   of   a   wave   is \[y\] = 3 cos \[\pi \] (100\[t\]- x) where \[y\] and \[x\] are in cm and (in second. The wavelength of this wave is :
  A)
   100 cm                                
  done clear
  B)
   5 cm
  done clear
  C)
   3 cm                                     
  done clear
  D)
   2 cm
  done clear
  View Answer play_arrow

• question_answer16) A thin circular ring of mass M and radius r is rotating about its axis with a constant angular velocity 0). Two objects each of mass muare placed gently on the opposite ends of a diameter of the ring. The ring now rotates with an angular velocity.
  A)
  \[\frac{\omega M}{M+2m}\]                     
  done clear
  B)
  \[\frac{\omega (M+2m)}{m}\]
  done clear
  C)
  \[\frac{\omega (M-2m}{m=2m}\]                           
  done clear
  D)
  \[\frac{\omega M}{M=m}\]
  done clear
  View Answer play_arrow

• question_answer17) A vacuum tube has an amplification factor of 10. If the grid voltage is decreased by 0.4 volt, by how much should the plate potential be raised to maintain the plate current constant ?
  A)
   3 volt                                   
  done clear
  B)
   1 volt
  done clear
  C)
   2 volt                                   
  done clear
  D)
   4 volt
  done clear
  View Answer play_arrow

• question_answer18) What should be the angle of projection so that the horizontal range is equal to the maximum height ?  
  A)
   tan\[^{-1}3\]                                    
  done clear
  B)
   tan\[^{-1}6\]
  done clear
  C)
   tan \[^{-1}5\]                                   
  done clear
  D)
   \[^{-1}4\]
  done clear
  View Answer play_arrow

• question_answer19) For a transistor the parameter \[\beta \] = 49 the value of the a parameter is :
  A)
   1                                            
  done clear
  B)
   98
  done clear
  C)
   0.98                                      
  done clear
  D)
   9.8
  done clear
  View Answer play_arrow

• question_answer20) For an ideal gas undergoing an adiabatic change, the equation giving the relation between its temperature T and pressure P is (where \[y\]= ratio of two specific heats \[{{C}_{p}}\] and \[{{C}_{u}}\] of the gas) :
  A)
   \[{{p}^{1-\gamma T\gamma =}}\] constant        
  done clear
  B)
   \[{{p}^{\gamma -T\gamma -1=}}\] constant
  done clear
  C)
   \[P{{T}^{y-1=}}\] constant         
  done clear
  D)
   \[P{{T}^{\gamma 1=}}\] constant
  done clear
  View Answer play_arrow

• question_answer21) At the same temperature the ratio of the root mean square speeds of the molecules of hydrogen and oxygen (Crms(H)/crms (0) is equal to :
  A)
   4                                            
  done clear
  B)
   8
  done clear
  C)
   16                                         
  done clear
  D)
   32
  done clear
  View Answer play_arrow

• question_answer22) The dimension of magnetic flux are :
  A)
   \[[M{{L}^{2}}{{T}^{2}}{{A}^{-1}}]\]                         
  done clear
  B)
   \[[M{{L}^{2}}{{T}^{-1}}{{A}^{-2}}]\]
  done clear
  C)
   \[[M{{L}^{2}}{{T}^{2}}{{A}^{-}}^{2}]\]                                   
  done clear
  D)
   \[[ML{{T}^{-2}}{{A}^{-2}}]\]
  done clear
  View Answer play_arrow

• question_answer23) In a step up transformer, the turn ratio is 1:20. A Laclanche cell (e.m.f. 1.5 V) has been connected across the primary, me voltage across secondary will be :
  A)
   zero                                     
  done clear
  B)
   75 V
  done clear
  C)
   0.75 V                                  
  done clear
  D)
   30 V
  done clear
  View Answer play_arrow

• question_answer24) Yellow light is used in a single slit diffraction experiment with slit width 6 mm. If yellow light is replaced by X-rays, then the observed pattern will reveal :
  A)
   no diffraction pattern
  done clear
  B)
   less number of fringes
  done clear
  C)
   more number of fringes
  done clear
  D)
  central maxima is narrower
  done clear
  View Answer play_arrow

• question_answer25) 1 a.m.u. in terms of energy is :
  A)
   93.1 V                                  
  done clear
  B)
   931 eV
  done clear
  C)
   9.31 MeV                           
  done clear
  D)
   931 MeV
  done clear
  View Answer play_arrow

• question_answer26) According to Keplers second law, how the radius vector of a planet relative to sun sweeps out equal areas in equal interval of time The law is a consequence of conservation of:
  A)
   Newtons law of gravitation
  done clear
  B)
   Angular momentum
  done clear
  C)
   Law of conservation of energy
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer27) L, R represents inductance and resistance respectively, which of the following has the dimension of frequency?
  A)
   \[\sqrt{L/R}\]                                   
  done clear
  B)
   \[\sqrt{R/L}\]
  done clear
  C)
   \[R/L\]                                
  done clear
  D)
   \[\sqrt{L/R}\]
  done clear
  View Answer play_arrow

• question_answer28) The radioactive decay of uranium into thorium is given by the equation\[_{92}{{U}^{238}}\xrightarrow{{}}_{90}^{{}}T{{h}^{234}}+X,\]?
  A)
   A neutron                         
  done clear
  B)
   An \[\alpha \]-particle
  done clear
  C)
   Electron                             
  done clear
  D)
   Proton
  done clear
  View Answer play_arrow

• question_answer29) 300 joule of work is done in sliding a 2 kg block up an inclined plane to a height of 10 m. Taking the value of acceleration due r\ to gravity g to be 10 m/s , work done against friction is :
  A)
   zero                                     
  done clear
  B)
   300 joule
  done clear
  C)
   200 joule                            
  done clear
  D)
   100 joule
  done clear
  View Answer play_arrow

• question_answer30) The equivalent resistance between X and Y in circuit given, is :
  A)
   5\[\Omega \]                                   
  done clear
  B)
   7.5\[\Omega \]
  done clear
  C)
   20\[\Omega \]                                
  done clear
  D)
   10\[\Omega \]
  done clear
  View Answer play_arrow

• question_answer31) Three capacitors of capacitance 2\[\mu \]F, 3\[\mu \]F and 6\[\mu \]F are connected in series and the combination is charged by means of a 24 volt battery. The potential difference between the plates of the 6\[\mu \]F capacitor will be :     
  A)
   10V                                      
  done clear
  B)
   8V
  done clear
  C)
   4 V                                        
  done clear
  D)
   6 V
  done clear
  View Answer play_arrow

• question_answer32) Five capacitors are connected as shown in the figure. The equivalent capacitance between A and B is :                    
  A)
   4\[\mu \]F                                        
  done clear
  B)
   3\[\mu \]F
  done clear
  C)
   2\[\mu \]F                                        
  done clear
  D)
   1\[\mu \]F
  done clear
  View Answer play_arrow

• question_answer33) The ratio of peak value and rms value of an alternating current is :
  A)
   \[\frac{1}{\sqrt{2}}\]                                    
  done clear
  B)
  \[\sqrt{2}\]
  done clear
  C)
   \[\frac{1}{2}\]                                  
  done clear
  D)
   1
  done clear
  View Answer play_arrow

• question_answer34) Two soap bubbles of radii r1 and r2 equal to 4 cm and 5 cm are touching each other over a common surface S1 and S2 shown in figure. Its radius will be :
  A)
   4.5 cm                                 
  done clear
  B)
   25 cm
  done clear
  C)
   20 cm                                  
  done clear
  D)
   40 cm
  done clear
  View Answer play_arrow

• question_answer35) The electric potential at a point distant r due to an electric dipole is proportional to:
  A)
   \[{{r}^{2}}\]                                      
  done clear
  B)
   r
  done clear
  C)
  \[\frac{1}{{{r}^{2}}}\]                                    
  done clear
  D)
  \[\frac{1}{r}\]
  done clear
  View Answer play_arrow

• question_answer36) A body falling from a high minar travels 40 m in the last 2 seconds of its fall to ground. Height of minar in metre is :
  A)
   50                                         
  done clear
  B)
   80
  done clear
  C)
   45                                         
  done clear
  D)
   60
  done clear
  View Answer play_arrow

• question_answer37) A bulb has specifications of 1 kW and 250 volt, the resistance of bulb is :
  A)
   625 \[\Omega \]                             
  done clear
  B)
   0.25 \[\Omega \]
  done clear
  C)
   6.25 \[\Omega \]                            
  done clear
  D)
   62.5 \[\Omega \]
  done clear
  View Answer play_arrow

• question_answer38) The decay constant of a radioactive element is \[\lambda \] The half life and mean life of a sample are respectively, given by :
  A)
  \[\frac{\lambda }{{{\log }_{e}}2}and\frac{1}{\lambda }\]                              
  done clear
  B)
  \[\lambda ({{\log }_{e}}2)and\frac{1}{\lambda }\]
  done clear
  C)
  \[\frac{{{\log }_{e}}2}{\lambda }and\frac{1}{\lambda }\]                              
  done clear
  D)
  \[\frac{1}{\lambda }and{{\log }_{e}}2/\lambda \]
  done clear
  View Answer play_arrow

• question_answer39)                                                 Energy in the sun is produced by :
  A)
   radioactive process       
  done clear
  B)
   chemical process
  done clear
  C)
   fission process
  done clear
  D)
   fusion process
  done clear
  View Answer play_arrow

• question_answer40) The slope of a graph between threshold frequency and stopping potential is :
  A)
  \[\frac{h}{{{v}_{0}}}\]                                   
  done clear
  B)
  \[h{{v}_{0}}\]
  done clear
  C)
   \[{{v}_{0}}\]                                     
  done clear
  D)
   \[h\]
  done clear
  View Answer play_arrow

• question_answer41) One feels hotter at the top of the flame than the sides of flame because of :
  A)
   radiation   
  done clear
  B)
   conduction
  done clear
  C)
   convection                        
  done clear
  D)
   both (a) and (b)
  done clear
  View Answer play_arrow

• question_answer42) Relation between critical angles of water and glass is :
  A)
  \[{{C}_{\omega }}<{{C}_{g}}=0\]              
  done clear
  B)
  \[{{C}_{\omega }}={{C}_{g}}\]
  done clear
  C)
  \[{{C}_{\omega }}<{{C}_{g}}\]                                   
  done clear
  D)
  \[{{C}_{\omega }}>{{C}_{g}}\]
  done clear
  View Answer play_arrow

• question_answer43) A man is standing on a spring platform. The reading of spring balance is 60 kg weight. If the man jumps outside from the platform, the reading of spring balance :
  A)
   becomes zero                 
  done clear
  B)
   increases
  done clear
  C)
   remains same                  
  done clear
  D)
   first (b) then (c)
  done clear
  View Answer play_arrow

• question_answer44) Direction: In the question Assertion (A) and Reason (R) are given then the correct answers will be as: (A) particle moving on a circular path with constant speed: (R) It possesses radial velocity
  A)
  If both (A) and (R) are true and (R) is the correct explanation of the (A)
  done clear
  B)
  If both (A) and (R) are true but (R) is not the explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If (A) is false but (R) is true
  done clear
  E)
  Both (A) and (R) are false
  done clear
  View Answer play_arrow

• question_answer45) Direction: In the question Assertion (A) and Reason (R) are given then the correct answers will be as: (A) We prefer water as the coolant in the radiators of engines in motor vehicles (R) Due to high thermal capacity, the water absorbs large amount of heat and the cooling is faster
  A)
  If both (A) and (R) are true and (R) is the correct explanation of the (A)
  done clear
  B)
  If both (A) and (R) are true but (R) is not the explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If (A) is false but (R) is true
  done clear
  E)
  Both (A) and (R) are false
  done clear
  View Answer play_arrow

• question_answer46) Direction: In the question Assertion (A) and Reason (R) are given then the correct answers will be as: (A) Cloudy nights are usually warmer (R) Clouds have low thermal conductivity
  A)
  If both (A) and (R) are true and (R) is the correct explanation of the (A)
  done clear
  B)
  If both (A) and (R) are true but (R) is not the explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If (A) is false but (R) is true
  done clear
  E)
  Both (A) and (R) are false
  done clear
  View Answer play_arrow

• question_answer47) Direction: In the question Assertion (A) and Reason (R) are given then the correct answers will be as: (A) Metals are good conductors of heat (R) Their surfaces are good reflector of heat.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of the (A)
  done clear
  B)
  If both (A) and (R) are true but (R) is not the explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If (A) is false but (R) is true
  done clear
  E)
  Both (A) and (R) are false
  done clear
  View Answer play_arrow

• question_answer48) Direction: In the question Assertion (A) and Reason (R) are given then the correct answers will be as: (A) Escape velocity on earth depends upon the mass of a projected body. (R) Escape   velocity   on   the   earth \[_{ues}=\sqrt{\frac{gm}{R}}\]where m is the mass of the body?
  A)
  If both (A) and (R) are true and (R) is the correct explanation of the (A)
  done clear
  B)
  If both (A) and (R) are true but (R) is not the explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If (A) is false but (R) is true
  done clear
  E)
  Both (A) and (R) are false
  done clear
  View Answer play_arrow

• question_answer49) Direction: In the question Assertion (A) and Reason (R) are given then the correct answers will be as: (A) Rubber is a more elastic than glass (R) The rubber has higher modulus of elasticity than glass
  A)
  If both (A) and (R) are true and (R) is the correct explanation of the (A)
  done clear
  B)
  If both (A) and (R) are true but (R) is not the explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If (A) is false but (R) is true
  done clear
  E)
  Both (A) and (R) are false
  done clear
  View Answer play_arrow

• question_answer50) Direction: In the question Assertion (A) and Reason (R) are given then the correct answers will be as: (A) Refractive index of prism depends only on the kind of glass of which it is made of and the colour of light (R) The refractive index of prism depends upon he refracting angle of the prism and the angle of minimum deviation:
  A)
  If both (A) and (R) are true and (R) is the correct explanation of the (A)
  done clear
  B)
  If both (A) and (R) are true but (R) is not the explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If (A) is false but (R) is true
  done clear
  E)
  Both (A) and (R) are false
  done clear
  View Answer play_arrow

• question_answer51) Consider the reaction, \[CaC{{O}_{3}}(s)CaO(s)+C{{O}_{2}}(g)\]in closed container at equilibrium. What would be the, effect of adding \[CaC{{O}_{3}}\] on the equilibrium concentration of \[C{{O}_{2}}\]?
  A)
   Increases
  done clear
  B)
   Decreases
  done clear
  C)
   Remains constant
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer52) Which is not a colloid?
  A)
   Egg                                       
  done clear
  B)
   Milk
  done clear
  C)
   Ruby glass         
  done clear
  D)
   Chlorophyll
  done clear
  View Answer play_arrow

• question_answer53) Electric refining is used for refining of :
  A)
   \[Cu\]                                 
  done clear
  B)
   \[Fe\]
  done clear
  C)
   \[Pb\]                                 
  done clear
  D)
   \[Al\]
  done clear
  View Answer play_arrow

• question_answer54) Ionisation energy of hydrogen is:
  A)
   much higher than that of chlorine
  done clear
  B)
   slightly higher than that of chlorine
  done clear
  C)
   smaller than that of chlorine
  done clear
  D)
   equal to that of chlorine
  done clear
  View Answer play_arrow

• question_answer55) The half-life of 4 isotopes are:

  (I) \[6.7year\]

  (II) \[8\times {{10}^{3}}year\]

  (III) \[5760\text{ }year\]

  (IV) \[2.35\times {{10}^{5}}year\]

  The most stable isotope is:
  A)
   \[IV\]                                  
  done clear
  B)
   \[III\]   
  done clear
  C)
   \[II\]                                    
  done clear
  D)
   \[I\]
  done clear
  View Answer play_arrow

• question_answer56) The composition of mica is:
  A)
   \[NaK.Si{{O}_{4}}.10{{H}_{2}}O\]
  done clear
  B)
   \[{{K}_{2}}HAl{{(Si{{O}_{4}})}_{3}}\]
  done clear
  C)
   \[{{K}_{2}}O.3A{{l}_{2}}{{O}_{3}}.6Si{{O}_{2}}.2{{H}_{2}}O\]
  done clear
  D)
   \[NaAlSi{{O}_{4}}.3{{H}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer57) Which one is a good solvent for ionic and polar covalent compounds?
  A)
   Liquid \[N{{H}_{3}}\]  
  done clear
  B)
  \[C{{H}_{3}}OH\]
  done clear
  C)
  \[C{{H}_{3}}COOH\]    
  done clear
  D)
   \[{{H}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer58) The coupling between base units of DNA is through:
  A)
   van der Waals forces
  done clear
  B)
   hydrogen bonding
  done clear
  C)
   electrostatic bonding
  done clear
  D)
   covalent bonding
  done clear
  View Answer play_arrow

• question_answer59) The energy of an electron in the first Bohr orbit of H-atom is\[-13.6eV\]. The possible energy value(s) of the excited state(s) for electron in Bohr orbits of hydrogen is(are):
  A)
   \[-6.8eV\]                         
  done clear
  B)
   \[-4.2eV\]
  done clear
  C)
   \[-3.4eV\]         
  done clear
  D)
   \[+6.8eV\]
  done clear
  View Answer play_arrow

• question_answer60) In a compound \[C=40%\]and \[H=6.66%,\] what is the empirical formula of the compound?
  A)
                 
  done clear
  B)
   \[{{C}_{4}}H{{O}_{4}}\]
  done clear
  C)
   CHO                     
  done clear
  D)
   \[C{{H}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer61) The best method to separate the mixture of ortho and para nitrophenol \[(1:1)\]is:   
  A)
   vaporisation    
  done clear
  B)
   colour spectrum
  done clear
  C)
   distillation      
  done clear
  D)
   crystallization
  done clear
  View Answer play_arrow

• question_answer62) I.U.P.A.C. name of \[{{(C{{H}_{3}})}_{3}}-C-CH=C{{H}_{2}}\]is:
  A)
   2,2-dimethyl-3-butene
  done clear
  B)
   3,3-dimethyl-l-butene
  done clear
  C)
   3,3,3-trimethyl-l-propene
  done clear
  D)
   1,1,1-trimethyl-2-butene
  done clear
  View Answer play_arrow

• question_answer63) Which of the following compound could be optically active?
  A)
   2,3-diinethyl pentane
  done clear
  B)
   2-methyl pentane
  done clear
  C)
   Isopropyl bromide
  done clear
  D)
   Isoethyl alcohol
  done clear
  View Answer play_arrow

• question_answer64) The number of \[s{{p}^{3}}\]-hybrid carbons in 2-buttyne:
  A)
   \[1\]                                    
  done clear
  B)
   \[2\]
  done clear
  C)
   \[3\]                                    
  done clear
  D)
   \[4\]
  done clear
  View Answer play_arrow

• question_answer65) Excess of \[NaOH\] solution reacts with zinc to form:
  A)
   disodium zinc
  done clear
  B)
   sodium zincate
  done clear
  C)
   zinc oxide
  done clear
  D)
   zinc hydroxide
  done clear
  View Answer play_arrow

• question_answer66) The most acidic among the following is:    
  A)
   \[{{B}_{2}}{{O}_{3}}\]                   
  done clear
  B)
   \[A{{s}_{2}}{{O}_{3}}\]
  done clear
  C)
   \[S{{b}_{2}}{{O}_{3}}\]                
  done clear
  D)
   \[{{P}_{2}}{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer67) Gibbs free energy G, enthalpy, H and entropy are related as:
  A)
   \[G=H-TS\]      
  done clear
  B)
   \[G=H+TS\]
  done clear
  C)
   \[H=G-TS\]       
  done clear
  D)
   \[S=H-G\]
  done clear
  View Answer play_arrow

• question_answer68) The \[H-H\] bond energy is \[430\text{ }kJ\text{ }mol{{e}^{-1}}\] and \[Cl-Cl\] bond energy is \[240\text{ }kJ\text{ }mol{{e}^{-1}}\], \[\Delta H\] for \[HCl\] is \[-90kJ\]. The \[H-Cl\] bond energy is about:
  A)
   \[180kJ\text{ }mol{{e}^{-1}}\]
  done clear
  B)
   \[360kJ\text{ }mol{{e}^{-1}}\]
  done clear
  C)
   \[213kJ\text{ }mol{{e}^{-1}}\]
  done clear
  D)
   \[425kJ\text{ }mol{{e}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer69) What is the amount of urea dissolved perlitre, if aqueous solution is isotonic with 10% cane sugar solution? (Mol. wt. of urea =60)
  A)
   \[200g/lit\]
  done clear
  B)
   \[19.2g/lit\]
  done clear
  C)
   \[17.54g/lit\]
  done clear
  D)
   \[16.7g/lit\]
  done clear
  View Answer play_arrow

• question_answer70) The reduction electrode potential, E of \[0.1M\]solution of \[{{M}^{+}}\] ions \[({{E}_{RP}}=-2.36V)\] is:
  A)
   \[-4.82V\]         
  done clear
  B)
   \[-4.82V\]
  done clear
  C)
   \[+2.41V\]        
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer71) pH of solution whose \[[{{H}^{+}}]\] is 1 mole per litre is:
  A)
   \[1.5\]                                 
  done clear
  B)
   \[1.0\]    
  done clear
  C)
   \[0.1\]                                 
  done clear
  D)
   \[0\]
  done clear
  View Answer play_arrow

• question_answer72) Identify the element which can have highest oxidation number.
  A)
   \[Cl\]                                   
  done clear
  B)
   \[0\]   
  done clear
  C)
   \[C\]                                    
  done clear
  D)
   \[N\]
  done clear
  View Answer play_arrow

• question_answer73) Oxidation number of \[Fe\] in \[F{{e}_{3}}{{O}_{4}}\]are:
  A)
   \[+1\]and \[+2\]     
  done clear
  B)
   \[+1\]and \[+3\]
  done clear
  C)
   \[+2\]and \[+3\]
  done clear
  D)
  \[+2\] and \[+4\]
  done clear
  View Answer play_arrow

• question_answer74) Number of unpaired electrons in the electronic configuration is:
  A)
   \[6\]                                    
  done clear
  B)
   \[4\]
  done clear
  C)
   \[3\]                                    
  done clear
  D)
   \[2\]
  done clear
  View Answer play_arrow

• question_answer75) Which of-the following sets of quantum number is wrong?
  A)
   \[n=3,l=2,m=1,s=+\frac{1}{2}\]
  done clear
  B)
   \[n=3,l=2,m=1,s=+\frac{1}{2}\]
  done clear
  C)
   \[n=2,l=2,m=0,s=+\frac{1}{2}\]
  done clear
  D)
   \[n=2,l=1,m=0,s=+\frac{1}{2}\]
  done clear
  View Answer play_arrow

• question_answer76) From   the   ground   state   electronic configuration of the elements given below, pick up the one with highest value of IInd iomisation energy :
  A)
   \[1{{s}^{2}},2{{s}^{2}}2{{p}^{5}}\]
  done clear
  B)
   \[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}\]
  done clear
  C)
   \[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{1}}\]
  done clear
  D)
   \[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer77) Which one of the following gases contains least number of molecules?
  A)
   \[{{H}_{2}}\text{O}\,\text{(4g)}\]
  done clear
  B)
   Marsh gas \[\text{(2g)}\]
  done clear
  C)
   \[\text{PC}{{\text{l}}_{5}}\text{(4g)}\]
  done clear
  D)
   Phosgene \[\text{(2g)}\]
  done clear
  View Answer play_arrow

• question_answer78) In crystal structure, of rock salt \[(NaCl)\], the arrangement of \[C{{l}^{-}}\] ion is:
  A)
   fee              
  done clear
  B)
   bcc
  done clear
  C)
   both (a) and (b)
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer79) Chlorophyll is the complex of:
  A)
   \[C{{o}^{2+}}\]                                
  done clear
  B)
   \[F{{e}^{3+}}\]  
  done clear
  C)
   \[F{{e}^{2+}}\]                                
  done clear
  D)
   \[M{{g}^{2+}}\]
  done clear
  View Answer play_arrow

• question_answer80) Purest form of iron is:
  A)
   steel            
  done clear
  B)
   wrought iron
  done clear
  C)
   grey cast iron   
  done clear
  D)
   white cast iron
  done clear
  View Answer play_arrow

• question_answer81) A gas decolourises bromine in \[CC{{l}_{4}}\] and forms a precipitate with ammonical silver nitrate. The  gas is:
  A)
   \[C{{H}_{4}}\]                  
  done clear
  B)
   \[{{C}_{2}}{{H}_{6}}\]
  done clear
  C)
   \[{{C}_{2}}{{H}_{4}}\]                   
  done clear
  D)
   \[{{C}_{2}}{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer82) The reaction,\[{{C}_{6}}{{H}_{5}}OH\xrightarrow[2{{H}^{+}}]{CHC{{l}_{3}}+NaOH}Salicyldehyde\]is known as:
  A)
   Reimer Tiemann reaction
  done clear
  B)
   Gattermann aldehyde synthesis
  done clear
  C)
   Duffs reaction
  done clear
  D)
   Perkin reaction
  done clear
  View Answer play_arrow

• question_answer83) \[HN{{O}_{2}}\] forms an alcohol on reaction with:
  A)
   \[{{(C{{H}_{3}})}_{2}}NH\]
  done clear
  B)
   \[C{{H}_{3}}N{{H}_{2}}\]
  done clear
  C)
   \[{{C}_{6}}{{H}_{5}}NHC{{H}_{3}}\]
  done clear
  D)
   \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer84) Hydrolysis of esters in alkaline medium is called:
  A)
   esterification    
  done clear
  B)
   alkalization
  done clear
  C)
   saponification   
  done clear
  D)
   hydration
  done clear
  View Answer play_arrow

• question_answer85) The solubility of \[AgCl({{K}_{sp}}=1.2\times {{10}^{-10}})\]in a\[0.1M\text{ }NaCl\]solution is:
  A)
   \[1.2\times {{10}^{-10}}M\]    
  done clear
  B)
   \[1.2\times {{10}^{-9}}M\]
  done clear
  C)
   \[1.2\times {{10}^{-6}}M\]
  done clear
  D)
   \[0.1M\]
  done clear
  View Answer play_arrow

• question_answer86) The pH of \[0.1M\,N{{H}_{4}}Cl\]is:
  A)
   \[>7\]                  
  done clear
  B)
   \[<7\]
  done clear
  C)
   \[=7\]                                  
  done clear
  D)
   highly basic
  done clear
  View Answer play_arrow

• question_answer87) The reaction,\[{{C}_{6}}{{H}_{5}}CHO+C{{H}_{3}}CHO\xrightarrow{{}}\]\[{{C}_{6}}{{H}_{5}}CH=CHCHO\]is called:
  A)
   Benzoin condensation .
  done clear
  B)
   Claisen condensation
  done clear
  C)
   Cannizzaros reaction
  done clear
  D)
   Perkin reaction
  done clear
  View Answer play_arrow

• question_answer88) Which of the following amine will not give carbylamine reaction?
  A)
   Methyl amine  
  done clear
  B)
   Ethyl amine
  done clear
  C)
   Dimethyl amine
  done clear
  D)
   Phenyl amine
  done clear
  View Answer play_arrow

• question_answer89) Teflon is a polymer of which of the following?
  A)
   Tetrafluoroethene
  done clear
  B)
   Tetrafluoromethane
  done clear
  C)
   Difluoroethane
  done clear
  D)
   Monofluoroethane
  done clear
  View Answer play_arrow

• question_answer90) Most electropositive halogen is:
  A)
   \[Cl\]                                   
  done clear
  B)
   \[Br\]    
  done clear
  C)
   \[I\]                     
  done clear
  D)
   \[F\]
  done clear
  View Answer play_arrow

• question_answer91) Orthophosphoric acid is:
  A)
   tetrabasic          
  done clear
  B)
   tribasic
  done clear
  C)
   dibasic                                
  done clear
  D)
   monobasic
  done clear
  View Answer play_arrow

• question_answer92) Plaster of Paris is hardened by:
  A)
   giving out water
  done clear
  B)
   uniting with water
  done clear
  C)
   changing in to \[CaC{{O}_{3}}\]
  done clear
  D)
   liberating \[C{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer93) Increasing order of acidic character of the following is:
  A)
   \[{{H}_{3}}P{{O}_{4}}<{{H}_{2}}C{{O}_{3}}<{{H}_{2}}S{{O}_{4}}\]
  done clear
  B)
   \[{{H}_{2}}S{{O}_{4}}<{{H}_{2}}C{{O}_{3}}<{{H}_{3}}P{{O}_{4}}\]
  done clear
  C)
   \[{{H}_{3}}P{{O}_{4}}\text{ }{{H}_{2}}S{{O}_{4}}<{{H}_{2}}C{{O}_{3}}\]
  done clear
  D)
   \[{{H}_{2}}C{{O}_{3}}<{{H}_{3}}P{{O}_{4}}<{{H}_{2}}S{{O}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer94) A catalyst increases the rate of reaction because it:
  A)
   increases the temperature coefficient
  done clear
  B)
   increases the activation energy
  done clear
  C)
   decreases the energy barrier for reaction
  done clear
  D)
   decreases the collision diameter
  done clear
  View Answer play_arrow

• question_answer95) The rate constant is given by the equation  which factor should register a decrease for the reaction to proceed more rapidly:                
  A)
   \[E\]                    
  done clear
  B)
   \[P\]   
  done clear
  C)
   \[T\]                                    
  done clear
  D)
   \[Z\]
  done clear
  View Answer play_arrow

• question_answer96) A radioactive element has a half-life of one day. After three days the amount of the element left will be:
  A)
   \[\frac{1}{16}\]of the original
  done clear
  B)
   \[\frac{1}{8}\] of the original
  done clear
  C)
   \[\frac{1}{4}\] of the original
  done clear
  D)
   \[\frac{1}{2}\] of the original
  done clear
  View Answer play_arrow

• question_answer97) Which of the following has more unpaired electrons?
  A)
   \[C{{u}^{+}}\]                  
  done clear
  B)
   \[F{{e}^{2+}}\]
  done clear
  C)
   \[Zn\]                                  
  done clear
  D)
   \[Ne\]
  done clear
  View Answer play_arrow

• question_answer98) Ionisation potential in a period is maximum in the case of:
  A)
   representative element
  done clear
  B)
   halogens
  done clear
  C)
   alkali metals
  done clear
  D)
   inert gas
  done clear
  View Answer play_arrow

• question_answer99) If the Plancks constant, \[h=6.6\times {{10}^{-34}}Js,\] the de-Broglies wavelength of a particle having moment of \[3.3\times {{10}^{-24}}kg\text{ }m{{s}^{-1}}\] will be:
  A)
   \[500\overset{\text{o}}{\mathop{\text{A}}}\,\]                              
  done clear
  B)
   \[2\overset{\text{o}}{\mathop{\text{A}}}\,\]  
  done clear
  C)
   \[0.5\overset{\text{o}}{\mathop{\text{A}}}\,\]                               
  done clear
  D)
   \[0.02\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer100) Methanal and phenol react in presence of base to give:
  A)
   bakelite         
  done clear
  B)
   polyethylene
  done clear
  C)
   dacron          
  done clear
  D)
   nylon-66
  done clear
  View Answer play_arrow

• question_answer101) The water vascular system performs all but not one function which is that :
  A)
   excretion                           
  done clear
  B)
   respiration
  done clear
  C)
   food capturing                
  done clear
  D)
   hormone secretion
  done clear
  View Answer play_arrow

• question_answer102) Which is not a fish?
  A)
   Scoliodon                          
  done clear
  B)
   Electric ray
  done clear
  C)
   Whale                                 
  done clear
  D)
   Sea horse
  done clear
  View Answer play_arrow

• question_answer103) Which of the following secrets a horny exoskeleton ?
  A)
   Hydrn                                  
  done clear
  B)
   Sea anemone
  done clear
  C)
   Obelia                                 
  done clear
  D)
   Jelly fish
  done clear
  View Answer play_arrow

• question_answer104) Pearls is secreted by :
  A)
   edge of mantle
  done clear
  B)
   inner lining of mantle
  done clear
  C)
   outer lining of mantle
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer105) One of the following is not a .nematode parasite?
  A)
   Trichinella          
  done clear
  B)
   Ascaris
  done clear
  C)
   Dracunculus                     
  done clear
  D)
   Schistosoma
  done clear
  View Answer play_arrow

• question_answer106) Hydra does not perform locomotion by :
  A)
   looping                               
  done clear
  B)
   somer saulting
  done clear
  C)
   jet propulsion                  
  done clear
  D)
   walking
  done clear
  View Answer play_arrow

• question_answer107) Which one is not the larval stage of Fasciola ?
  A)
   Cercaria                              
  done clear
  B)
   Miracidium
  done clear
  C)
   Cysticercus                       
  done clear
  D)
   Redia
  done clear
  View Answer play_arrow

• question_answer108) The primary function of flame cells is :
  A)
   excretion                           
  done clear
  B)
   osmoregulation
  done clear
  C)
   secretion of toxins        
  done clear
  D)
   all of these
  done clear
  View Answer play_arrow

• question_answer109) Enzyme carbonic an hydrase is present in :
  A)
   blood plasma  
  done clear
  B)
   WBC
  done clear
  C)
   RBC                                      
  done clear
  D)
   lymph
  done clear
  View Answer play_arrow

• question_answer110) Secretion of digestive juice in stomach is form :
  A)
  Brunners gland
  done clear
  B)
   gastric gland
  done clear
  C)
   foveola                               
  done clear
  D)
   sub mucosal gland
  done clear
  View Answer play_arrow

• question_answer111) Which one is not involved in the immune system?
  A)
   B-cells                                 
  done clear
  B)
   T-cells
  done clear
  C)
   Macrophage    
  done clear
  D)
   Granulocyte
  done clear
  View Answer play_arrow

• question_answer112) In man yellow colour of faeces is due to :
  A)
  pigments produced by the breakdown of hemoglobin
  done clear
  B)
   undigested fat which is yellow coloured
  done clear
  C)
   bile juice
  done clear
  D)
   pancreatic juice
  done clear
  View Answer play_arrow

• question_answer113) Peyers patches are :
  A)
   group of lymph nodules
  done clear
  B)
   group of arteries
  done clear
  C)
   group of ganglia     
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer114) Which of the following is not a function of erythrocyte ?
  A)
   Oxygen transport          
  done clear
  B)
   \[C{{O}_{2}}\] transport
  done clear
  C)
   Carriers of antigen         
  done clear
  D)
   Phagocytosis
  done clear
  View Answer play_arrow

• question_answer115) Spleen participates in the :
  A)
   production of antibodies
  done clear
  B)
   filtration of blood
  done clear
  C)
   store house of worn out RBC
  done clear
  D)
   all of these
  done clear
  View Answer play_arrow

• question_answer116) Colour of oxyhaemoglobin molecule is :
  A)
   bright red                          
  done clear
  B)
   bright blue
  done clear
  C)
   whitish blue                     
  done clear
  D)
   orange white
  done clear
  View Answer play_arrow

• question_answer117) In origin the RBC are :
  A)
   cytoplasmic                      
  done clear
  B)
   endothelial
  done clear
  C)
   mesothelial                      
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer118) As compared with blood, urine in mammals is :
  A)
   hypotonic
  done clear
  B)
   hypertonic
  done clear
  C)
   isotonic
  done clear
  D)
   difference between a and b
  done clear
  View Answer play_arrow

• question_answer119) The development of unfertilized eggs produced by larvae is called :
  A)
   paedogenesis                  
  done clear
  B)
   parthenogenesis
  done clear
  C)
   neoteny                             
  done clear
  D)
   polyembryony
  done clear
  View Answer play_arrow

• question_answer120) Relaxin hormone in mammals is secreted by:
  A)
   placenta                             
  done clear
  B)
   follicle
  done clear
  C)
   ovary                                   
  done clear
  D)
   testis
  done clear
  View Answer play_arrow

• question_answer121) Motile sperms are absent in :
  A)
   Mucor                                 
  done clear
  B)
   Cycas
  done clear
  C)
   Tomato                              
  done clear
  D)
   Funaria
  done clear
  View Answer play_arrow

• question_answer122) Lomasomes are present in :
  A)
   protozoan                         
  done clear
  B)
   fungi
  done clear
  C)
   bacteria              
  done clear
  D)
   virus
  done clear
  View Answer play_arrow

• question_answer123) Tungro disease affects :
  A)
   Wheat                                
  done clear
  B)
   Barley
  done clear
  C)
   Rice                                      
  done clear
  D)
   Sorghum
  done clear
  View Answer play_arrow

• question_answer124) Mycorrhizae is a good example of :
  A)
   symbiosis                          
  done clear
  B)
   commensalism
  done clear
  C)
   proto cooperation         
  done clear
  D)
   competition
  done clear
  View Answer play_arrow

• question_answer125) Imperfect fungi are known as :
  A)
   Ascomycetes                   
  done clear
  B)
   Deutcromycetes
  done clear
  C)
   Basidiomycetes              
  done clear
  D)
   Phycomycetes
  done clear
  View Answer play_arrow

• question_answer126) Which acid is not produced by various species of fungi ?
  A)
   Gluconic acid   
  done clear
  B)
   Acetic acid
  done clear
  C)
   Sulfuric acid                      
  done clear
  D)
   Succinic acid
  done clear
  View Answer play_arrow

• question_answer127) FAD coenzyme is made from :
  A)
   pantothenic acid            
  done clear
  B)
   thymine
  done clear
  C)
   riboflavin                           
  done clear
  D)
   folic acid
  done clear
  View Answer play_arrow

• question_answer128) Name of the substance often found in bacteria:
  A)
   PHB                                      
  done clear
  B)
   BPH
  done clear
  C)
   HBP                                      
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer129) Which   of   the   following   is   not photoautotroph ?
  A)
   Purple sulfur bacteria
  done clear
  B)
   Purple none sulfur bacteria
  done clear
  C)
   Green sulfur bacteria
  done clear
  D)
   Cyanobacteria
  done clear
  View Answer play_arrow

• question_answer130) Bacterial chlorophyll absorbs mainly :
  A)
   infra-red light  
  done clear
  B)
   visible light
  done clear
  C)
   UV rays                              
  done clear
  D)
   X-rays
  done clear
  View Answer play_arrow

• question_answer131) Cell wall of red algae contains :
  A)
   cellulose                            
  done clear
  B)
   cellulose + alginic acid
  done clear
  C)
   cellulose + pectin
  done clear
  D)
   no cell wall
  done clear
  View Answer play_arrow

• question_answer132) Process in which the phosphate group of a compound is removed and directly added to ADP is :
  A)
   substrate level phosphorylation
  done clear
  B)
   photophosphorylation
  done clear
  C)
   oxidative phosphorylation
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer133) AIDS is confirmed by :
  A)
   ELISA                                   
  done clear
  B)
   Western blot
  done clear
  C)
   Northern blot                  
  done clear
  D)
   Southern blot
  done clear
  View Answer play_arrow

• question_answer134) The vitamin responsible for antisterile activity is:
  A)
   Vitamin B                           
  done clear
  B)
   Vitamin E
  done clear
  C)
   Vitamin K                           
  done clear
  D)
   Vitamin H
  done clear
  View Answer play_arrow

• question_answer135) EEC is done to detect :
  A)
   heart disorders               
  done clear
  B)
   brain disorders
  done clear
  C)
   liver disorders                 
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer136) The image of an object produced on the retina is :
  A)
   real and inverted
  done clear
  B)
   virtual and enlarged
  done clear
  C)
   virtual and inverted
  done clear
  D)
   real and enlarged
  done clear
  View Answer play_arrow

• question_answer137) Brain receives and sends signals in the form of:
  A)
   electrical impulses         
  done clear
  B)
   chemical impulses
  done clear
  C)
   magnetic impulses        
  done clear
  D)
   electromagnetic impulses
  done clear
  View Answer play_arrow

• question_answer138) Turmeric a commonly used colorant and antiseptic is taken from which part of the plant?
  A)
  Stem                                    
  done clear
  B)
   Root
  done clear
  C)
   Flower                                
  done clear
  D)
   Fruit
  done clear
  View Answer play_arrow

• question_answer139) Pheromones help in :
  A)
   flying
  done clear
  B)
   courtship and mating
  done clear
  C)
   eating
  done clear
  D)
   walking
  done clear
  View Answer play_arrow

• question_answer140) The organ which is affected by diphtheria is :
  A)
   liver                                     
  done clear
  B)
   lungs
  done clear
  C)
   throat                                 
  done clear
  D)
   skin
  done clear
  View Answer play_arrow

• question_answer141) Which of the following is a banned pesticide ?
  A)
  DDT                                       
  done clear
  B)
   CAN
  done clear
  C)
   EDB                                      
  done clear
  D)
   DNB
  done clear
  View Answer play_arrow

• question_answer142) Leaf lamina is modified into two toothed jaws in:
  A)
   Nepenthes                       
  done clear
  B)
   Dionea
  done clear
  C)
   Drosera                              
  done clear
  D)
   Utricularia
  done clear
  View Answer play_arrow

• question_answer143) Name the hydrophyte which is not free floating?
  A)
   Wolffia                               
  done clear
  B)
   Lemna
  done clear
  C)
   Utricularia        
  done clear
  D)
   Eichhornia
  done clear
  View Answer play_arrow

• question_answer144) Root cap is not generally present in :
  A)
   mesophytes    
  done clear
  B)
   halophytes
  done clear
  C)
   hydrophytes                    
  done clear
  D)
   xerophytes
  done clear
  View Answer play_arrow

• question_answer145) Which is not a flightless bird ?
  A)
   Rhea                                    
  done clear
  B)
   Dromeaus
  done clear
  C)
   Apteryx                              
  done clear
  D)
   Columba
  done clear
  View Answer play_arrow

• question_answer146) When the sepals or petals meet by their edges without overlaping the aestivation is :
  A)
   Imbricate                           
  done clear
  B)
   valvate
  done clear
  C)
   twisted                               
  done clear
  D)
   axillary
  done clear
  View Answer play_arrow

• question_answer147) Boat shaped anterior petal in garden pea is called :           
  A)
   wing                                    
  done clear
  B)
   alae  
  done clear
  C)
   keel                                     
  done clear
  D)
   ship
  done clear
  View Answer play_arrow

• question_answer148) The process of formation of glucose from non-carbohydrate sources is called :
  A)
   glycogenesis    
  done clear
  B)
   glycogenolysis
  done clear
  C)
   glyconeogenesis            
  done clear
  D)
   glycolysis
  done clear
  View Answer play_arrow

• question_answer149) Northern blotting is used for :
  A)
   DNA transfer   
  done clear
  B)
   RNA transfer
  done clear
  C)
   protein transfer              
  done clear
  D)
   all of these
  done clear
  View Answer play_arrow

• question_answer150) Kogi and Haggen Smit (1931) isolated which plant growth regulator from human urine :
  A)
   ethylene                            
  done clear
  B)
   auxins
  done clear
  C)
   gibberellins                       
  done clear
  D)
   ABA
  done clear
  View Answer play_arrow

• question_answer151) Learning is related to :
  A)
   hypothalamus                 
  done clear
  B)
   cerebellum
  done clear
  C)
   cerebrum                          
  done clear
  D)
   pineal body
  done clear
  View Answer play_arrow

• question_answer152) Heterocysts are found in :
  A)
   Aspergillus       
  done clear
  B)
   Nostoc
  done clear
  C)
   Cystupus                           
  done clear
  D)
   Ulothrix
  done clear
  View Answer play_arrow

• question_answer153) F plasmid is :
  A)
   a slime mould                  
  done clear
  B)
   virus
  done clear
  C)
   extra nucleoid DNA       
  done clear
  D)
   yeast
  done clear
  View Answer play_arrow

• question_answer154) The offsprings of better individuals are expected to make up a large portion of the next generation this involves which process :
  A)
   mutation                           
  done clear
  B)
   genetic drift
  done clear
  C)
   genetic pool                     
  done clear
  D)
   natural selection
  done clear
  View Answer play_arrow

• question_answer155) The source of energy in muscle contraction is :
  A)
   ADP                     
  done clear
  B)
   GTP
  done clear
  C)
   ATP                                      
  done clear
  D)
   creatine phosphate
  done clear
  View Answer play_arrow

• question_answer156) The principal cereal crop of India is :
  A)
  Wheat                                 
  done clear
  B)
   Rice
  done clear
  C)
   Cotton                                
  done clear
  D)
   Maize
  done clear
  View Answer play_arrow

• question_answer157) Synthetic vaccines are called :
  A)
   first generation               
  done clear
  B)
   second generation
  done clear
  C)
   third generation             
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer158) Dolly-a sheep was cloned in :
  A)
   USA                                     
  done clear
  B)
   UK  
  done clear
  C)
   UAE                                     
  done clear
  D)
   Canada
  done clear
  View Answer play_arrow

• question_answer159) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: Insects usually develop resistance to insecticides. Reason: Natural selection is a phenomenon that is generally exhibited by organisms.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A).
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer160) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: Bladder worm is a state in the life history of a Tapeworm. Reason: Tapeworms are flattened organisms:
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A).
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer161) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: Birds can make sudden and swift changes in their direction during flight. Reason: Because of their sharp eye sight:
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A).
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer162) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: Trygon, a cartilagenous fish, is a good source of commercial fish food. Reason: Cartilagenous fish can be eaten without any left over.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A).
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer163) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: The disposition of the internal organs of the Snail show asymmetry. Reason: Because of torsion of visceral components.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A).
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer164) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: Evolution of sex has been necessary for the sake of continuance of species. Reason: Organisms can also continue through asexual means.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A).
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer165) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: Meiosis is a reductional division where gametes are formed. Reason: Meiosis is also a means of genetic recombination.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer166) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : The action of a competitive enzyme can be reversed by increasing the substrate concentration. Reason : Competitive enzymes inhibitors compete with the substrate reacting reversibly with the enzyme.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer167) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: The gene may undergo a sudden change in expression due to change in composition called mutation. Reason: Some genes mutate more than once and have more than two alleles.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer168) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : Natural selection produces the variations favourable to a particular environment. Reason : Accumulation of these variation could not lead to origin of new species.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer169) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : Biological clocks of living organisms oscillate continuously. Reason : Biological clocks of living organisms are independent of changes in environment:
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer170) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : In a monohybrid cross we study two characters. Reason : Where alleles exhibit dominant recessive relationship.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer171) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: Cyanide is a metabolic poison. Reason: As it inhibits the enzyme cytochrome oxidase and blocks tissue respiration.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer172) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: Grey matter surrounds the white matter in the brain. Reason: White matter surrounds the grey matter in the spinal cord.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer173) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : Microsome is the collective name  for cytoplasmic cell organelle obtained after centrifugation of the cell. Reason : These are present in all normal cells.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer174) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : Haemocoelomic fluid of Leech has a red colour. Reason : The coelomic fluid of Leech contains floating red blood corpuscles.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer175) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: The birds have large, light spongy bones with air sacs. Reason: These adaptation help them during flight.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer176) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: Ingested alcohol suppresses ADH. Reason: Suppression of ADH causes increased urine flow.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer177) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : The phenomenon of spontaneons speciation is incommon in animals. Reason: Polyploidy is rare in animals.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer178) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion:  ADH is also called vasopressin and is secreted by anterior lobe of pituitary. Reason: As it plays an important role in osmatic and ionic balance in vertebrate animals.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer179) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: Plasmolysis occurs when plant cells are placed in concentrated salt solution. Reason :  Concentrated salt solution is a hypotonic solution.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer180) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: Mn is not needed for light reaction of photosynthesis. Reason: It is constituent of chlorophyll.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer181) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : Flower is a modified shoot. Reason : All the floral parts are borne on thalamus.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer182) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion: Axillary buds, in actively growing herbaceous plants, generally remain dormant. Reason : This is due to apical dominance which is under the influence of auxins.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer183) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : Connective tissue contains a large amount of non-living intercellular or extracellular matrix. Reason : Intercellular substance is usually made up of protein fibres.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer184) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : Alimentary canal of Prawn is divisible into fore gut, mid gut and hind gut. Reason : It does not contain any digestive gland.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer185) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : Vitamin B; is chemically called thiamine. Reason : It is also called vitamin G.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer186) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : Liver is an endocrine gland. Reason : It secrets many enzymes in bile juice.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer187) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : Compound eyes are found in many Arthropods. Reason : Each compound eye consists of a large number of visual structures called ommatidia.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer188) Direction: In the given questions a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it of the statement, mark the correct answer as: Assertion : The copulatory orangs of Sharks and Rays are called claspers. Reason : Uterus is also called womb.
  A)
  If both (A) and (R) are true and (R) is the correct explanation of (A)
  done clear
  B)
  If both (A) and (E) are true but (E) is not correct explanation of (A)
  done clear
  C)
  If (A) is true but (R) is false
  done clear
  D)
  If both (A) and (R) are false
  done clear
  E)
  If (A) is false but (R) is true
  done clear
  View Answer play_arrow

• question_answer189) Model for DNA structure was proposed by:
  A)
   Beadle and Tatum         
  done clear
  B)
   M.C. Chung
  done clear
  C)
   Purkinje                             
  done clear
  D)
   Watson and Crick  
  done clear
  View Answer play_arrow

• question_answer190)                Cell wall is outer covering of plant cell made up of cellulose it is :
  A)
   semipermeable              
  done clear
  B)
   permeable
  done clear
  C)
  non permeable                
  done clear
  D)
  all of these
  done clear
  View Answer play_arrow

• question_answer191) Protein is the body building material of animals it is the polymer of :
  A)
   glucose                               
  done clear
  B)
   nucleotides
  done clear
  C)
   amino acids                      
  done clear
  D)
   fatty acids
  done clear
  View Answer play_arrow

• question_answer192) A molecule of sedoheptulose has carbon atoms numbering :
  A)
   3                                            
  done clear
  B)
   4     
  done clear
  C)
   5                                            
  done clear
  D)
   7
  done clear
  View Answer play_arrow

• question_answer193) Which of the following disease is the result of thiamine deficiency ?
  A)
   Marasmus                         
  done clear
  B)
   Beri-beri
  done clear
  C)
   Rickets                                
  done clear
  D)
   Kwashiorkor
  done clear
  View Answer play_arrow

• question_answer194) Chemically wax is :
  A)
   a protein                            
  done clear
  B)
   a lipid
  done clear
  C)
   a carbohydrate               
  done clear
  D)
   an amino acid
  done clear
  View Answer play_arrow

• question_answer195) The chemical formula of chlorophyll-b is:
  A)
   \[{{C}_{55}}{{H}_{72}}{{O}_{5}}{{N}_{5}}Mg\]   
  done clear
  B)
   \[{{C}_{55}}{{H}_{72}}{{O}_{5}}{{N}_{4}}Mg\]
  done clear
  C)
   \[{{C}_{55}}{{H}_{70}}{{O}_{6}}{{N}_{4}}Mg\]                   
  done clear
  D)
   \[{{C}_{55}}{{H}_{72}}{{O}_{5}}{{N}_{5}}Mg\]
  done clear
  View Answer play_arrow

• question_answer196) The reaction of glycolysis occurs in :
  A)
   mitochondria                   
  done clear
  B)
   ribosome
  done clear
  C)
   cytoplasm                         
  done clear
  D)
   golgi complex
  done clear
  View Answer play_arrow

• question_answer197) In a human being the number of cranial nerves are :
  A)
   10 pairs                               
  done clear
  B)
   12 pairs
  done clear
  C)
   6 pairs                                 
  done clear
  D)
   20 pairs
  done clear
  View Answer play_arrow

• question_answer198) The plants respond to photo-periods due to the presence of :
  A)
   phytochromes                
  done clear
  B)
   stomata                          
  done clear
  C)
   enzymes                            
  done clear
  D)
   phytohormones  
  done clear
  View Answer play_arrow

• question_answer199)            The pioneers in the field of organic evolution are :
  A)
  Darwin, Hugo de Vries, Lamarck, Huxley
  done clear
  B)
   Karl Landsteiner, Hugo de Vries, Malthus, Darwin
  done clear
  C)
   Lamarck, Karl Landsteiner, Malthus, de Vries
  done clear
  D)
   Darwin, Lamarck, Karl Landsteiner, de Vries
  done clear
  View Answer play_arrow

• question_answer200) The cell wall of bacteria is composed of :
  A)
   murein                               
  done clear
  B)
   chitin
  done clear
  C)
   cellulose                            
  done clear
  D)
   suberin
  done clear
  View Answer play_arrow

• question_answer201) The phenomenon, in which an allele of one gene suppresses the activity of an allele of another gene, is known as :
  A)
   suppression                     
  done clear
  B)
   inactivation
  done clear
  C)
   epistasis                             
  done clear
  D)
   dominance
  done clear
  View Answer play_arrow

• question_answer202) What is common among amylase, rennin .and trypsin ?
  A)
   These all are proteins
  done clear
  B)
   These all are proteolytic enzymes
  done clear
  C)
   These are produced in stomach
  done clear
  D)
   These are all hormone
  done clear
  View Answer play_arrow

• question_answer203) The vagus nerve is the cranial nerve numbering :
  A)
   10th                                     
  done clear
  B)
   9th   
  done clear
  C)
   7th                                       
  done clear
  D)
   5th
  done clear
  View Answer play_arrow

• question_answer204) The kidney of an adult Frog is :
  A)
   pronephros     
  done clear
  B)
   mesonephros
  done clear
  C)
   metanephros                  
  done clear
  D)
   opisthonephros
  done clear
  View Answer play_arrow

• question_answer205) Which of the following is free living aerobic non-photosynthetic    nitrogen    fixing bacterium ?
  A)
   Rhizobium                         
  done clear
  B)
   Azotobacter
  done clear
  C)
   Nostoc                                
  done clear
  D)
   Azospirillium
  done clear
  View Answer play_arrow

• question_answer206) If a person shows production of in terferons in his body the chances are that he has got an infection of :
  A)
   typhoid                              
  done clear
  B)
   measles
  done clear
  C)
   tetanus                              
  done clear
  D)
   malaria
  done clear
  View Answer play_arrow

• question_answer207) Centromere is a part of :
  A)
   ribosomes
  done clear
  B)
   mitochondria
  done clear
  C)
   chromosome
  done clear
  D)
   endoplasmic reticulum
  done clear
  View Answer play_arrow

• question_answer208) \[NADP{{H}_{2}}\] is generated through :
  A)
   photosystem I
  done clear
  B)
   photosystem II
  done clear
  C)
   anaerobic respiration
  done clear
  D)
   glycolysis
  done clear
  View Answer play_arrow

• question_answer209) If an angiospcrmic male plant is diploid and female plant tetraploid the ploidy level of endosperm will be :
  A)
   haploid                               
  done clear
  B)
   triploid
  done clear
  C)
   tetraploid                          
  done clear
  D)
   pentaploid
  done clear
  View Answer play_arrow

• question_answer210) Heterospory and seed habit are often exhibited by a plant possessing :
  A)
   bract                                   
  done clear
  B)
   spathe
  done clear
  C)
   petiole                                
  done clear
  D)
   ligule
  done clear
  View Answer play_arrow

• question_answer211) Bryophytes can be seperated from algae because they :
  A)
   are thalloid forms
  done clear
  B)
   have no conducting tissue
  done clear
  C)
   possess archegonia
  done clear
  D)
   contain chloroplast
  done clear
  View Answer play_arrow

• question_answer212) Brown algae is characterised by the presence of:
  A)
   phycocyanin    
  done clear
  B)
   phycoerythrin
  done clear
  C)
   fucoxanthin                      
  done clear
  D)
   haematochrome
  done clear
  View Answer play_arrow

• question_answer213) Biofertilizers are :
  A)
   cow dung manure and farmyard waste
  done clear
  B)
   quick growing crop ploughed under soil
  done clear
  C)
   Anabaena and Azolla
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer214) The end product of fermentation are :
  A)
   \[{{O}_{2}}\] and \[{{C}_{2}}{{H}_{5}}OH\]
  done clear
  B)
   \[C{{O}_{2}}\] and \[{{C}_{2}}{{H}_{5}}OH\]
  done clear
  C)
   \[C{{O}_{2}}\]and\[{{O}_{2}}\]
  done clear
  D)
   \[C{{O}_{2}}\]and acetaldehyde
  done clear
  View Answer play_arrow

• question_answer215) The Nissls granules of nerves cell are made up of :
  A)
   ribosome                           
  done clear
  B)
   protein
  done clear
  C)
   DNA                                     
  done clear
  D)
   RNA
  done clear
  View Answer play_arrow

• question_answer216) In ureotelic animals urea is formed by :
  A)
  Ornithine cycle                 
  done clear
  B)
   Coris cycle
  done clear
  C)
   Krebs cycle                       
  done clear
  D)
   EMP pathway
  done clear
  View Answer play_arrow

• question_answer217) Stratum germinativam is an example of which kind of epithelium ?
  A)
   Cuboidal                            
  done clear
  B)
   Ciliated
  done clear
  C)
   Columnar                          
  done clear
  D)
   Squamous
  done clear
  View Answer play_arrow

• question_answer218) Which one of the following vitamins can be synthesized by bacteria inside the gut ?
  A)
   B                                           
  done clear
  B)
   C    
  done clear
  C)
   D                                           
  done clear
  D)
   K
  done clear
  View Answer play_arrow

• question_answer219) Hormones thyroxine adrenaline and the pigment melanin are iormed from :.
  A)
   tryptophan                       
  done clear
  B)
   glycine
  done clear
  C)
   tyrosine                             
  done clear
  D)
   proline
  done clear
  View Answer play_arrow

• question_answer220) Which one of the following statements is correct regarding evolution of mankind ?
  A)
   Neanderthal man and cro-magnon man were living at the same time
  done clear
  B)
   Australopithecus   was living in Australia
  done clear
  C)
   Homo erectus is preceded by Homo habilis
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow