Solved papers for BHU PMT BHU PMT (Mains) Solved Paper-2010

done BHU PMT (Mains) Solved Paper-2010 Total Questions - 200

• question_answer1) Dimensions of\[\frac{L}{RCV}\]are
  A)
  \[[{{A}^{-1}}]\]                                 
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  B)
   \[[{{A}^{-2}}]\]
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  C)
   \[[A]\]                                
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  D)
   \[[{{A}^{2}}]\]
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• question_answer2) An electric charge\[{{10}^{-3}}\mu C\]is placed at the origin (0, 0) of\[X-Y\]coordinate system. Two points A and B are situated at\[(\sqrt{2},\sqrt{2})\]and (2, 0) respectively. The potential difference between the points A and B will be
  A)
   4.5V                                     
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  B)
   9V
  done clear
  C)
   zero                                     
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  D)
   2V
  done clear
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• question_answer3) An oxide coated filament is useful in vacuum tubes because essentially
  A)
   it has high melting point
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  B)
   it can withstand high temperature
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  C)
   it has good mechanical strength
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  D)
   it can emit electrons at relatively lower temperature
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• question_answer4) A charged oil drop is suspended in a uniform electric field of\[3\times {{10}^{4}}V/m\]so that it neither falls nor rises. The charge on the drop will be (take the mass of the drop is\[9.9\times {{10}^{-15}}kg\] And\[g=10m{{s}^{-2}}\])
  A)
  \[3.3\times {{10}^{18}}C\]           
  done clear
  B)
  \[3.2\times {{10}^{-18}}C\]
  done clear
  C)
   \[1.6\times {{10}^{-18}}C\]        
  done clear
  D)
  \[4.8\times {{10}^{-18}}C\]
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• question_answer5) Calorie is defined as the amount of heat required to raise the temperature of 1 g of water by\[1{}^\circ C\]and it is defined under which of the following conditions?
  A)
   From\[14.5{}^\circ C\]to\[15.5{}^\circ C\]at 760 mm of Hg
  done clear
  B)
   From\[98.5{}^\circ C\]to\[99.5{}^\circ C\]at 760 mm of Hg
  done clear
  C)
   From\[13.5{}^\circ C\]to\[14.5{}^\circ C\]at 76 mm of Hg
  done clear
  D)
   From\[3.5{}^\circ C\]to\[4.5{}^\circ C\]at 76 mm of Hg
  done clear
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• question_answer6) Two particles having position vectors \[\overrightarrow{{{r}_{1}}}=(3\hat{i}+5\hat{j})m\]and\[\overrightarrow{{{r}_{2}}}=(-5\hat{i}-3\hat{j})m\]are moving with velocities\[\overrightarrow{{{v}_{1}}}=(4\hat{i}+3\hat{j})m{{s}^{-1}}\]and \[\overrightarrow{{{v}_{2}}}=(a\hat{i}+7\hat{j})m{{s}^{-1}}\]. If they collide after 2 s, the value of a is
  A)
   2                                            
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  B)
   4
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  C)
   6                                            
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  D)
   8
  done clear
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• question_answer7) An athlete throws a discus from rest to a final angular velocity of\[15\text{ }rad\text{ }{{s}^{-1}}\]in 0.270 s before releasing it. During acceleration, discus moves a circular arc of radius 0.810 m. Acceleration of discus before it is released is
  A)
  \[45\text{ }m{{s}^{-2}}\]              
  done clear
  B)
  \[182\text{ }m{{s}^{-2}}\]
  done clear
  C)
   \[187m{{s}^{-2}}\]         
  done clear
  D)
  \[192m{{s}^{-2}}\]
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• question_answer8) In a sample of radioactive material, what fraction of the initial number of active nuclei will remain disintegrated after half of a half-life of the sample?
  A)
   \[\frac{1}{4}\]                                  
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  B)
   \[\frac{1}{2\sqrt{2}}\]
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  C)
   \[\frac{1}{\sqrt{2}}\]                                    
  done clear
  D)
   \[\sqrt{2}-1\]
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• question_answer9) A charged capacitor discharges through a resistance R with time constant\[\tau \]. The two are now placed in series across an AC source of angular frequency\[\omega =\frac{1}{\tau }\]. The impedance of the circuit will be
  A)
   \[\frac{R}{\sqrt{2}}\]                                    
  done clear
  B)
   \[R\]
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  C)
   \[\sqrt{2}R\]
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  D)
   \[2R\]
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• question_answer10) A solid sphere of volume V and density\[\rho \]floats at the interface of two immiscible liquids of densities\[{{\rho }_{1}}\]and\[{{\rho }_{2}}\]respectively. If\[{{\rho }_{1}}<\rho <{{\rho }_{2}},\]then the ratio of volumes of the parts of the sphere in upper and lower liquids is
  A)
   \[\frac{\rho -{{\rho }_{1}}}{{{\rho }_{2}}-\rho }\]                             
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  B)
   \[\frac{{{\rho }_{2}}-\rho }{\rho -{{\rho }_{1}}}\]
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  C)
   \[\frac{\rho +{{\rho }_{1}}}{\rho +{{\rho }_{2}}}\]                           
  done clear
  D)
   \[\frac{\rho +{{\rho }_{2}}}{\rho +{{\rho }_{1}}}\]
  done clear
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• question_answer11) The equivalent resistance between points\[X\] and V in the circuit shown is
  A)
   \[10\,\Omega \]                             
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  B)
   \[5\,\Omega \]
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  C)
   \[7\,\Omega \]                               
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  D)
   \[14\,\Omega \]
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• question_answer12) At what height from the surface of the earth, the total energy of the satellite is equal to its potential energy at a height of 2R from the surface of earth? (R =radius of earth)
  A)
   \[\frac{R}{4}\]                                 
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  B)
   \[\frac{R}{2}\]
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  C)
   \[2R\]                                  
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  D)
   \[4R\]
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• question_answer13) A simple pendulum has time period\[{{T}_{1}}\]. The point of suspension is now moved upward according to the relation\[y=k{{t}^{2}}(k=1m{{s}^{-2}})\] where y is the vertical displacement. The time period now becomes\[{{T}_{2}}\]. The ratio of\[\frac{T_{1}^{2}}{T_{2}^{2}}\]is (take\[g=10m{{s}^{-2}}\])
  A)
   \[\frac{6}{5}\]                                  
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  B)
   \[\frac{5}{6}\]
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  C)
   1                                            
  done clear
  D)
   4
  done clear
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• question_answer14) A block released from rest from the top of a smooth inclined plane of angle\[{{\theta }_{1}}\]reaches the bottom in time\[{{t}_{1}}\]he same block released from rest from the top of another smooth inclined plane of angle\[{{\theta }_{2}},\]reaches the bottom in time \[{{t}_{2}}\].If the two inclined planes have the same height, the relation between\[{{t}_{1}}\]and\[{{t}_{2}}\]is
  A)
   \[\frac{{{t}_{2}}}{{{t}_{1}}}={{\left( \frac{\sin {{\theta }_{1}}}{\sin {{\theta }_{2}}} \right)}^{1/2}}\]          
  done clear
  B)
   \[\frac{{{t}_{2}}}{{{t}_{1}}}=1\]
  done clear
  C)
   \[\frac{{{t}_{2}}}{{{t}_{1}}}=\frac{\sin {{\theta }_{1}}}{\sin {{\theta }_{2}}}\]                       
  done clear
  D)
   \[\frac{{{t}_{2}}}{{{t}_{1}}}=\frac{{{\sin }^{2}}{{\theta }_{1}}}{{{\sin }^{2}}{{\theta }_{2}}}\]
  done clear
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• question_answer15) A projectile is thrown in the upward direction making an angle of\[60{}^\circ \]with the horizontal direction with a velocity of\[147\text{ }m{{s}^{-1}}\]. Then the time after which its inclination with the horizontal is\[45{}^\circ ,\]is
  A)
   15s                                       
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  B)
   10.98s
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  C)
   5.49s                                    
  done clear
  D)
   2.745s
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• question_answer16) A metal wire of linear mass density 9.8 g/m is stretched with a tension of 10 kg-wt between two rigid supports 1 m apart. The wire passes at its middle point between the poles of a permanent magnet and it vibrates in resonance when carrying an alternating current of frequency v. The frequency v of alternating source is
  A)
   50 Hz                                   
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  B)
   100 Hz
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  C)
   200 Hz                                 
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  D)
   25 Hz
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• question_answer17) A circular disc X of radius R is made from an iron plate of thickness t, and another plate Y of radius 4R is made from an iron plate of thickness t/ 4. The ratio of moments of inertia \[{{I}_{Y}}/{{I}_{X}}\]is
  A)
   32                                         
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  B)
   16
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  C)
   1                                            
  done clear
  D)
    64
  done clear
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• question_answer18) A Carnot engine whose sink is at 300 K has an efficiency of 40%. By how much should the temperature of source be increased as to increase its efficiency by 50% of original efficiency?
  A)
   380 K                                   
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  B)
   275 K
  done clear
  C)
   325 K                                   
  done clear
  D)
   250 K
  done clear
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• question_answer19) A large open tank has two holes in the wall. One is a square hole of side L at a depth y from the top and the other is a circular hole of radius R at a depth 4y from the top. When the tank is completely filled with water, the quantities of water flowing out per second from both holes are the same. Then, R is equal to
  A)
   \[\frac{L}{\sqrt{2\pi }}\]                              
  done clear
  B)
   \[2\pi L\]
  done clear
  C)
   \[L\]                                     
  done clear
  D)
   \[\frac{L}{2\pi }\]
  done clear
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• question_answer20) The angle of minimum deviation for a glass prism is equal to its refracting angle. The refractive index of glass is 1.5. Then the angle of prism is
  A)
   \[2{{\cos }^{-1}}(3/4)\]
  done clear
  B)
   \[{{\sin }^{-1}}(3/4)\]
  done clear
  C)
   \[2{{\sin }^{-1}}(3/2)\]                 
  done clear
  D)
   \[{{\cos }^{-1}}(3/2)\]
  done clear
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• question_answer21) Two periodic waves of intensities\[{{I}_{1}}\]and\[{{I}_{2}}\]pass through a region at the same time in the same direction. The sum of the maximum and minimum intensities is
  A)
   \[2({{I}_{1}}+{{I}_{2}})\]                              
  done clear
  B)
   \[{{I}_{1}}+{{I}_{2}}\]
  done clear
  C)
   \[{{(\sqrt{{{I}_{1}}}+\sqrt{{{I}_{2}}})}^{2}}\]      
  done clear
  D)
   \[{{(\sqrt{{{I}_{1}}}-\sqrt{{{I}_{2}}})}^{2}}\]
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• question_answer22) In a hydrogen atom, the electron in a given orbit has total energy\[-1.5\text{ }eV\]. The potential energy is
  A)
   1.5 eV                 
  done clear
  B)
  \[-1.5\text{ }eV\]
  done clear
  C)
   3.0 eV                                 
  done clear
  D)
  \[-3.0\text{ }eV\]
  done clear
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• question_answer23) A long straight wire carrying a current of 30 A is placed in an external uniform magnetic field of induction\[4\times {{10}^{-4}}T\]. The magnetic field is acting parallel to the direction of current. The magnitude of the resultant magnetic induction in tesla at a point 2.0 cm away from the wire is\[({{\mu }_{0}}=4\pi \times {{10}^{-7}}H{{m}^{-1}})\]
  A)
   \[{{10}^{-4}}\]                                 
  done clear
  B)
   \[3\times {{10}^{-4}}\]
  done clear
  C)
   \[5\times {{10}^{-4}}\]                                 
  done clear
  D)
   \[6\times {{10}^{-4}}\]
  done clear
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• question_answer24) Copper has face centred cubic (fee) lattice with interatomic spacing equals to \[2.54\,\overset{\text{o}}{\mathop{\text{A}}}\,\]. The value of lattice constant for this lattice is
  A)
  \[3.59\,\overset{\text{o}}{\mathop{\text{A}}}\,\]       
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  B)
  \[2.54\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
  \[1.27\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
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  D)
  \[5.08\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
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• question_answer25) A block of mass 10 kg is moving in x-direction with a constant speed of\[10m{{s}^{-1}}\]. It is subjected    to    a    retarding    force\[F=-\text{ }0.1\text{ }x\,J\,{{m}^{-1}}\]during its travel from\[x=20\]m to\[x=30\text{ }m\]. Its final kinetic energy will be
  A)
   475 J                                    
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  B)
   450 J
  done clear
  C)
   275 J                                    
  done clear
  D)
   250 J
  done clear
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• question_answer26) Which of the following pairs have same dimensions? (1) Angular momentum and work (2) Torque and work (3) Energy and Young's modulus (4) Light-year and wavelength
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer27) Two particles are projected from the same point with the same speed, at different angles \[{{\theta }_{1}}\]and \[{{\theta }_{2}}\]to the horizontal. They have the same horizontal range. Their times of flights are\[{{t}_{1}}\]and\[{{t}_{2}}\]respectively. Then (1) \[{{\theta }_{1}}+{{\theta }_{2}}={{90}^{o}}\]               (2) \[\frac{{{t}_{1}}}{\sin {{\theta }_{1}}}=\frac{{{t}_{2}}}{\sin {{\theta }_{2}}}\] (3) \[\frac{{{t}_{1}}}{{{t}_{2}}}=\tan {{\theta }_{1}}\]                       (4) \[\frac{{{t}_{1}}}{{{t}_{2}}}=\tan {{\theta }_{2}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer28) The displacement of a particle of mass 200 g from its mean position is given by \[y=0.05\text{ }\sin \text{ }(20\text{ }\pi t+1.6\pi )m\] (1) The period of motion is 0.1 s (2) The maximum acceleration is\[20{{\pi }^{2}}m{{s}^{-2}}\] (3) The energy of the particle is\[0.10{{\pi }^{2}}J\] (4) The energy of the particle is\[{{\pi }^{2}}J\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
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• question_answer29) When   some   potential   difference   is maintained between A and B, current i enters the network at A and leaves at B as shown in the figure. Then (1) The equivalent resistance between A and B is\[8\,\Omega \]. (2) C and D are at the same potential (3) Current\[\frac{3i}{5}\]flows from D to C (4) No current flows between C and D
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer30) A satellite close to the earth is in orbit above the equator with a period of rotation of 1.5 h. If it is above a point P on the equator at some time, it will be above P again after time (1) 1.5 h (2) 1.6 h if it is rotating from west to east (3)\[\frac{24}{17}\]h if it is rotating from west to east (4)\[\frac{24}{17}\]h if it is rotating from east to west
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer31) The electron in a hydrogen atom makes a transition\[{{n}_{1}}\to {{n}_{2}},\]where\[{{n}_{1}}\]and\[{{n}_{2}}\]are the principal quantum numbers of the two states. Assume the Bohr model to be valid. The time period of the electron in the initial state is eight times that in the final state. The possible values of\[{{n}_{1}}\]and\[{{n}_{2}}\]are (1) \[{{n}_{1}}=4;{{n}_{2}}=2\]                   (2) \[{{n}_{1}}=6,\,{{n}_{2}}=3\] (3) \[{{n}_{1}}=8,{{n}_{2}}=2\]                   (4)\[{{n}_{1}}=8,{{n}_{2}}=1\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
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• question_answer32) A simple pendulum with a bob of mass m is suspended from the roof of a car moving with a horizontal acceleration a. Then (1) the string makes an angle of\[{{\tan }^{-1}}\left( \frac{a}{g} \right)\] with the vertical (2) the string makes an angle of\[{{\tan }^{-1}}\left( 1-\frac{a}{g} \right)\] with the vertical     (3) the tension in the string is\[\sqrt{{{a}^{2}}+{{g}^{2}}}\] (4) The tension in the string is\[\sqrt{{{g}^{2}}-{{a}^{2}}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
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• question_answer33) The vessel shown in figure has two sections of areas of cross-section\[{{A}_{1}}\]and\[{{A}_{2}}\]. A liquid of density p fills both the sections, up to height h in each neglecting atmospheric pressure. (1) The pressure at the base of the vessel is\[2h\rho g\] (2) The force exerted by the liquid on the base of vessel is\[2h\rho g{{A}_{2}}\] (3) The walls of the vessel at the level\[X\]exert a force\[h\rho g({{A}_{2}}-{{A}_{1}})\]downwards on the liquid (4) The weight of the liquid in vessel is equal to\[2h\rho g{{A}_{2}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
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• question_answer34) Which of the following are paramagnetic substances? (1) Calcium         (2) Aluminium (3) Copper chloride         (4) Water
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
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• question_answer35) The displacement\[(x)\]of a particle depends on time\[(t)\,as\,x=\alpha {{t}^{2}}-\beta {{t}^{3}}\]. (1) The particle will come to rest after time\[\frac{2\alpha }{3\beta }\]. (2) The partice will return to its starting point after time\[\frac{\alpha }{\beta }\] (3) No net force will act on the particle at\[t=\frac{\alpha }{3\beta }\] (4) The initial velocity of the particle is not zero
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
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• question_answer36) Two electric bulbs rated at 25 W, 220 V and 100 W, 220 V are connected in series across a 220 V source. The 25 W and 100 W bulbs now draw powers\[{{p}_{1}}\]and\[{{p}_{2}}\]respectively. Then (1) \[{{P}_{1}}=4W\]                       (2) \[{{P}_{1}}=16W\] (3) \[{{P}_{2}}=16W\]                     (4) \[{{P}_{2}}=4W\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
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• question_answer37) The solar constant for the earth is S. The surface temperature of the sun is T K. The sun subtends an angle\[\theta \]at the earth. (1) \[S\propto {{T}^{4}}\]                             (2) \[S\propto {{T}^{2}}\] (3) \[S\propto {{\theta }^{2}}\]                  (4) \[S\propto \theta \]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
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• question_answer38) Photoelectric effect supports quantum nature of light because (1) there is minimum frequency of light below which no photoelectrons are emitted (2) the maximum kinetic  energy of photoelectrons depends only on the frequency of light and not on its intensity (3) even when the metal surface is faintly illuminated, the photoelectrons leave the surface immediately (4) electric charge of photoelectron is quantized
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer39) A particle P of mass m is attached to a vertical axis by two strings AP and BP of length I each as shown in the figure. The separation AB rotates around the axis with an angular velocity\[\omega \]. The tension in the two strings are \[{{T}_{1}}\]and\[{{T}_{2}}\]. Then (1) \[{{T}_{1}}-{{T}_{2}}=2mg\] (2) \[{{T}_{1}}+{{T}_{2}}=m{{\omega }^{2}}l\] (3) \[{{T}_{1}}={{T}_{2}}\] (4) \[{{T}_{1}}+{{T}_{2}}=mg\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer40) To convert mechanical energy into electrical energy, one can use (1) DC dynamo (2) Transformer (3) AC dynamo (4) Electric motor
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer41) In a plane electromagnetic wave, the electric field oscillates sinusoidally at a frequency of \[2\times {{10}^{10}}Hz\] and amplitude 54 V. (1) The amplitude of oscillating magnetic field will be\[18\times {{10}^{-8}}Wb\text{ }{{m}^{-2}}\] (2) The amplitude of oscillating magnetic field will be\[18\times {{10}^{-7}}Wb\text{ }{{m}^{-2}}\] (3) The wavelength of electromagnetic wave is 1.5 cm (4) The wavelength of electromagnetic wave is 1.5 m
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer42) A ray of light travelling in a transparent medium falls on a surface separating the medium from air, at an angle of incidence of\[45{}^\circ \]. The ray undergoes total internal reflection. If |li is the refractive index of the medium with respect to air, select the possible values of [i from the following (1) 1.3                                   (2) 1.5 (3) 1.4                                   (4) 1.6
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
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• question_answer43) You lift a suitcase from the floor and keep it on a table. The work done by you on the suitcase does not depend on (1) initial and final positions (2) path taken by suitcase (3) weight of suitcase (4) time taken in doing the work
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
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• question_answer44) Which of the following properties support wave theory of light? (1) Light shows Compton effect (2) Light shows interference (3) Light shows photoelectric effect (4) Velocity of light in glass is smaller than velocity of light in water
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer45) A string of length L is stretched along the\[x-\]axis and is rigidly clamped at its two ends. It undergoes transverse vibrations. If n is an integer, which of the following relations may represent the shape of the string at any time t? (1) \[y=A\sin \left( \frac{n\pi x}{L} \right)\cos \omega t\] (2) \[y=A\sin \left( \frac{n\pi x}{L} \right)\sin \omega t\] (3) \[y=A\cos \left( \frac{n\pi x}{L} \right)\cos \omega t\] (4) \[y=A\cos \left( \frac{n\pi x}{L} \right)\sin \omega t\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer46) Two large, parallel conducting plates\[X\]and Y, kept close to each other, are given charges\[{{Q}_{1}}\] and \[{{Q}_{2}}({{Q}_{1}}>{{Q}_{2}}).\]The four surfaces of the plates are A, B, C and D, as shown in the figure, (1) The charge on A is \[\frac{1}{2}({{Q}_{1}}+{{Q}_{2}})\] (2) The charge on B is\[\frac{1}{2}({{Q}_{1}}-{{Q}_{2}})\] (3) The charge on C is \[\frac{1}{2}({{Q}_{2}}-{{Q}_{1}})\] (4) The charge on D is\[\frac{1}{2}({{Q}_{1}}-{{Q}_{2}})\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer47) In the circuit shown, which of the following statements is/are correct? (1) When S is open, charge on\[{{C}_{1}}\]is\[36\mu C\] (2) When S is open, charge on\[{{C}_{2}}\]is\[36\mu C\] (3) When S is closed, charges on both\[{{C}_{1}}\]and \[{{C}_{2}}\]change (4) When S is closed, charges on\[{{C}_{1}}\]and\[{{C}_{2}}\]do not change
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer48) When photons of energy 4.25 eV strike the surface of a metal A the ejected photoelectrons have a maximum kinetic energy\[{{E}_{A}}\,eV\]and de-Broglie wavelength\[{{\lambda }_{A}}\]. The   maximum   kinetic   energy   of photoelectrons liberated from another metal B by photons of energy 4.70 eV is\[{{E}_{B}}=({{E}_{A}}-1.50)eV\]. If the de-Broglie wavelength of these photoelectrons is\[{{\lambda }_{B}}=2{{\lambda }_{A}},\]then (1) the work function of A is 2.25 eV (2) the work function of B is 4.20 eV (3) \[{{E}_{A}}=2.0\,eV\] (4) \[{{E}_{B}}=2.75\,eV\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer49) The wavelengths and frequencies of photons in transitions 1, 2 and 3 for hydrogen like atom are\[{{\lambda }_{1}},{{\lambda }_{2}},{{\lambda }_{3}};{{v}_{1}},{{v}_{2}}\]and\[{{v}_{3}}\]respectively. Then (1) \[{{v}_{3}}={{v}_{1}}+{{v}_{2}}\]                         (2) \[{{\lambda }_{3}}={{\lambda }_{1}}+{{\lambda }_{2}}\] (3) \[{{\lambda }_{3}}=\frac{{{\lambda }_{1}}{{\lambda }_{2}}}{{{\lambda }_{1}}+{{\lambda }_{2}}}\]                       (4) \[{{v}_{3}}=\frac{{{v}_{1}}{{v}_{2}}}{{{v}_{1}}+{{v}_{2}}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer50) Which of the following is/are not equal to 1 in Boolean algebra?           (1) \[A+1\]                                          (2) \[A\,.\,\overline{A}\] (3) \[A+\overline{A}\]                   (4) \[\overline{A+\overline{A}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer51) What are the products obtained when ammonia is reacted with excess chlorine?
  A)
  \[{{N}_{3}}\]and\[NC{{l}_{3}}\]                
  done clear
  B)
  \[{{N}_{2}}\]and\[HCl\]
  done clear
  C)
   \[{{N}_{3}}\]and\[N{{H}_{4}}Cl\]            
  done clear
  D)
  \[NC{{l}_{3}}\]and\[HCl\]
  done clear
  View Answer play_arrow

• question_answer52) What is not produced when sulphur reacts with boiling\[NaOH\]?
  A)
   \[N{{a}_{2}}S\]                                
  done clear
  B)
  \[S{{O}_{2}}\]
  done clear
  C)
  \[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\]               
  done clear
  D)
  \[{{H}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer53) Which of the following is free radical substitution reaction?
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   \[C{{H}_{3}}CHO+HCN\xrightarrow{{}}C{{H}_{3}}CH(OH)CN\]
  done clear
  View Answer play_arrow

• question_answer54) The   most   stable   conformation   of chlorohydrin at room temperature is
  A)
   fully eclipsed
  done clear
  B)
   partially eclipsed
  done clear
  C)
    gauche
  done clear
  D)
   staggered
  done clear
  View Answer play_arrow

• question_answer55) If\[\Delta G=\Delta H-T\Delta S\]and\[\Delta G=\Delta H-T{{\left[ \frac{d(\Delta G)}{dT} \right]}_{p}},\] then variation of emf of a cell, E with temperature, T is given by
  A)
   \[\frac{\Delta H}{nF}\]                 
  done clear
  B)
   \[\frac{\Delta G}{nF}\]
  done clear
  C)
    \[\frac{\Delta S}{nF}\]                                
  done clear
  D)
  \[\frac{-\Delta S}{nF}\]
  done clear
  View Answer play_arrow

• question_answer56) 3.92 g/L of a sample of ferrous ammonium sulphate reacts completely with 50 mL \[\frac{N}{10}KMn{{O}_{4}}\]solution. The percentage purity of the sample is
  A)
   50                                         
  done clear
  B)
   78.4
  done clear
  C)
   80.0                                      
  done clear
  D)
   39.2
  done clear
  View Answer play_arrow

• question_answer57) In hydrogen atom, energy of first excited state is\[-3.4\text{ }eV\]. Then find out the KE of the same orbit of hydrogen atom.
  A)
   +3.4eV                                
  done clear
  B)
   +6.8eV
  done clear
  C)
   -13.6eV                              
  done clear
  D)
   +13.6eV
  done clear
  View Answer play_arrow

• question_answer58) If an iodized salt contains 1% of\[KI\]and a person takes 2g of the salt every day, the iodide ions going into his body everyday would be approx.
  A)
  \[7.2\times {{10}^{21}}\]             
  done clear
  B)
   \[7.2\times {{10}^{19}}\]
  done clear
  C)
   \[3.6\times {{10}^{21}}\]            
  done clear
  D)
  \[9.5\times {{10}^{19}}\]
  done clear
  View Answer play_arrow

• question_answer59) In a metal oxide, the oxide ions are arranged in hexagonal close packing and metal ion occupy two-third of the octahedral voids. The formula of the oxide is
  A)
  \[MO\]                                
  done clear
  B)
  \[{{M}_{2}}{{O}_{3}}\]
  done clear
  C)
   \[M{{O}_{2}}\]                                
  done clear
  D)
  \[{{M}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer60) The vapour pressure of a solvent A is 0.80 atm. When a non-volatile substance B is added to this solvent, its vapour pressure drops to 0.60 atm. The mole fraction of A in the solution is
  A)
   0.25                                      
  done clear
  B)
   0.50
  done clear
  C)
   0.75                                      
  done clear
  D)
   0.90
  done clear
  View Answer play_arrow

• question_answer61) A first order reaction is 50% completed in 30 min at\[27{}^\circ C\]and in 10 min at\[47{}^\circ C\]. The energy of activation of the reaction is
  A)
  \[43.84\text{ }kJmo{{l}^{-1}}\]                  
  done clear
  B)
  \[34.84\text{ }kJmo{{l}^{-1}}\]
  done clear
  C)
   \[84.00\text{ }kJ\text{ }mo{{l}^{-1}}\]  
  done clear
  D)
  \[30.00\text{ }kJmo{{l}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer62) The IUPAC name of\[[Ni{{(N{{H}_{3}})}_{4}}][NiC{{l}_{4}}]\]is
  A)
   tetrachloronickel (II)- tetraamminenickel (II)
  done clear
  B)
   tetraamminenickel (II)- tetrachloronickel (II)
  done clear
  C)
   tetraamminenickel (II)-tetrachloronickelate (II)
  done clear
  D)
   tetrachloronickel (II)-tetraamminenickelate (0)
  done clear
  View Answer play_arrow

• question_answer63) \[{{C}_{7}}{{H}_{8}}\xrightarrow{3C{{l}_{2}},Heat}A\xrightarrow{Fe/B{{r}_{2}}}B\]\[\xrightarrow[{}]{Zn/HCl}C\] Here, the compound C is
  A)
   3-bromo-2, 4, 6-trichlorotoluene
  done clear
  B)
   o-bromotoluene
  done clear
  C)
    p-bromotoluene
  done clear
  D)
   m-bromotoluene
  done clear
  View Answer play_arrow

• question_answer64) The reaction of\[{{C}_{6}}{{H}_{5}}CH=CHCHO\]with \[NaB{{H}_{4}}\]gives
  A)
  \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}OH\]
  done clear
  B)
  \[{{C}_{6}}{{H}_{5}}CH=CHC{{H}_{2}}OH\]
  done clear
  C)
  \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}C{{H}_{2}}CHO\]
  done clear
  D)
  \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}CHOHC{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer65) Which of the following hydroxy carboxylic acids undergoes dehydration easily?
  A)
  \[C{{H}_{2}}OHC{{H}_{2}}C{{H}_{2}}C{{H}_{2}}COOH\]
  done clear
  B)
   \[C{{H}_{3}}CH(OH)C{{H}_{2}}COOH\]
  done clear
  C)
    \[{{C}_{6}}{{H}_{5}}-\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{CH}}\,-COOH\]
  done clear
  D)
   \[C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{CH}}\,-COOH\]
  done clear
  View Answer play_arrow

• question_answer66) The standard reduction potentials of Ag, Cu, Co and Zn are 0.799, 0.337, -0.277, -0.762 V respectively. Which of the following cells will have maximum cell emf?
  A)
  \[Zn|Z{{n}^{2+}}(1M)||C{{u}^{2+}}(1M)|Cu\]
  done clear
  B)
  \[Zn|Z{{n}^{2+}}(1M)||A{{g}^{+}}(1M)|Ag\]
  done clear
  C)
   \[Cu|C{{u}^{2+}}(1M)||A{{g}^{+}}(1M)|Ag\]
  done clear
  D)
  \[Zn|Z{{n}^{2+}}(1M)||C{{o}^{2+}}(1M)|Co\]
  done clear
  View Answer play_arrow

• question_answer67) Gold number is minimum in case of
  A)
   gelatin                
  done clear
  B)
   egg albumin
  done clear
  C)
    gum arable     
  done clear
  D)
   starch
  done clear
  View Answer play_arrow

• question_answer68) Which of the following has the highest electron affinity?
  A)
  \[{{O}^{-}}\]                                      
  done clear
  B)
  \[{{F}^{-}}\]
  done clear
  C)
   \[{{F}_{2}}\]                                     
  done clear
  D)
  \[C{{l}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer69) Which of the following is the weakest base in aqueous solution?
  A)
   Diisopropylamine
  done clear
  B)
   Benzylamine
  done clear
  C)
    Aniline
  done clear
  D)
    Cyclohexylamine
  done clear
  View Answer play_arrow

• question_answer70) The compound which, on reaction with aqueous nitrous acid at low temperature produces an oily nitrosoamine is
  A)
   diethylamine                   
  done clear
  B)
   ethylamine
  done clear
  C)
    aniline                                
  done clear
  D)
   methylamine
  done clear
  View Answer play_arrow

• question_answer71) An electron moving with velocity V is found to have a certain value of de-Broglie wavelength. The velocity to be possessed by the neutron to have the same de-Broglie wavelength is
  A)
   \[\frac{1840}{v}\]                           
  done clear
  B)
   \[1840\,v\]
  done clear
  C)
    \[\frac{v}{1840}\]                          
  done clear
  D)
   \[v\]
  done clear
  View Answer play_arrow

• question_answer72) A sample of rock from the moon contains equal number of atoms of uranium and lead (\[{{t}_{1/2}}\]for\[U=4.5\times {{10}^{9}}yr\]). The age of the rock would be
  A)
   \[4.5\times {{10}^{9}}yr\]                           
  done clear
  B)
  \[9.0\times {{10}^{9}}yr\]
  done clear
  C)
   \[13.5\times {{10}^{9}}yr\]        
  done clear
  D)
  \[2.25\times {{10}^{9}}yr\]
  done clear
  View Answer play_arrow

• question_answer73) A semiconductor of Ge can be made p-type by adding
  A)
   trivalent impurity
  done clear
  B)
   tetravalent impurity
  done clear
  C)
   pentavalent impurity
  done clear
  D)
   divalent impurity
  done clear
  View Answer play_arrow

• question_answer74) A solution contains 10 mL of\[0.1\text{ }N\text{ }NaOH\]and 10 mL of\[0.05\text{ }N{{a}_{2}}S{{O}_{4}}\]. pH of this solution is
  A)
   7                                            
  done clear
  B)
   less than 7
  done clear
  C)
   greater than 7                 
  done clear
  D)
   zero
  done clear
  View Answer play_arrow

• question_answer75) What will be the pH of a solution formed by mixing 40 mL of\[0.10\text{ }M\text{ }HCl\]with 10 mL of\[0.45\text{ }M\text{ }NaOH\]?
  A)
   12                                         
  done clear
  B)
   10
  done clear
  C)
    8                                           
  done clear
  D)
   6
  done clear
  View Answer play_arrow

• question_answer76) Indicate which of the following species have the same bond order? (1)\[N{{O}^{+}}\]                             (2)\[NO\] (3)\[C{{N}^{-}}\]                               (4)\[O{{F}^{-}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer77) For resonance structure, a molecule should have (1) identical arrangement of atoms (2) nearly same energy content (3) the same number of paired electrons (4) identical bonding
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer78) The intensive property/properties is/are (1) temperature               (2) pressure (3) internal energy          (4) heat capacity
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer79) Which of the following contain same number of molecules?  0.1 mol of\[C{{O}_{2}}\]  3.2g of\[{{O}_{2}}\]  0.1 g-atom of helium gas  11.2L of\[S{{O}_{2}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer80) Aqueous solution of following compounds are electrolyzed. Acetylene gas is obtained from (1) sodium acetate          (2) sodium maleate (3) sodium succinate      (4) sodium fumarate
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer81) Which of the following can be used to distinguish between 1-butyne and 2-butyne? (1) Grignard reagent (2) Ammoniacal\[AgN{{O}_{3}}\] (3) Ammoniacal\[C{{u}_{2}}C{{l}_{2}}\] (4) Baeyefs reagent
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer82) Which of the following fibres are made of polyamides? (1) Wool                               (2) Natural silk (3) Artificial silk                  (4) Terylene
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer83) Which of the following statements are true? (1) Maltose forms an osazone (2) Lactose undergoes mutarotation (3) Galactose is a\[{{C}_{4}}-\]epimer of glucose (4) In starch, the glucose units are linked by \[\beta -\]linkages
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer84) Nitrogen (I) oxide is produced by (1) thermal decomposition of ammonium nitrate (2) disproportionation of\[{{N}_{2}}{{O}_{4}}\] (3) interaction of hydroxyl amine and nitrous acid (4) thermal decomposition of ammonium nitrite
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer85) Which of the following are outer orbital octahedral complexes? (1) \[{{[Fe{{F}_{6}}]}^{3-}}\]                        \[{{[Fe{{(CN)}_{6}}]}^{4-}}\]  \[{{[Fe{{({{H}_{2}}O)}_{6}}]}^{2+}}\]      \[{{[Fe{{(CN)}_{6}}]}^{3-}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer86) Which of the following undergoes aldol condensation? (1) Acetaldehyde (2) Propionaldehyde (3) Trideuteroacetaldehyde (4) Benzaldehyde
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer87) Addition of high proportions of manganese makes steel useful in making rails of rail roads, because manganese (1) gives hardness to steel (2) helps the formation of oxides of iron (3) can remove oxygen and sulphur (4) can show highest oxidation state of +7
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer88) The metals which are much more noble than Au and Pt and are insoluble in aqua regia are (1)\[Ir\]                                (2)\[Os\] (3) \[Rh\]                                             (4)\[Pd\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer89) Zn and Ag can be separated from each other by (1) distillation (2) heating with cone.\[NaOH\] (3) fractional distillation (4) treating with dil.\[HN{{O}_{3}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer90) Which of the following correctly represent/s the units of rate of reaction? (1)\[mol\,{{L}^{-1}}{{s}^{-1}}\]                   (2) \[L\,mol\text{ }{{s}^{-1}}\] (3) \[atm\text{ }{{s}^{-1}}\]                         (4)\[atm\,\,mo{{l}^{-1}}\text{ }{{s}^{-1}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer91) The electrolysis of aqueous solution of\[CuB{{r}_{2}}\] using platinum electrode would lead to the evolving of (1)\[B{{r}_{2}}\]gas at anode (2) \[B{{r}_{2}}\]gas at anode and\[{{O}_{2}}\]gas at cathode (3) copper (s) at cathode (4)\[{{H}_{2}}\]gas at cathode
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer92) For a binary solution of\[{{H}_{2}}O\]and\[C{{H}_{3}}C{{H}_{2}}OH,\] deviation from Raoult's law is observed. Which of the following is/are incorrect? (1) \[\Delta {{H}_{mixing}}<0\]                  (2) \[{{p}_{{{H}_{2}}O}}<p_{{{H}_{2}}O}^{o}{{\chi }_{{{H}_{2}}O}}\] (3) \[{{p}_{{{H}_{2}}O}}>p_{{{H}_{2}}O}^{o}{{\chi }_{{{H}_{2}}O}}\]         (4) \[\Delta {{V}_{mixing}}>0\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer93) Which of the following will function as buffer? (1)\[NaCl+NaOH\] (2) Borax + Boric acid (3)\[Na{{H}_{2}}P{{O}_{4}}+NaHP{{O}_{4}}\] (4)\[N{{H}_{4}}Cl+N{{H}_{4}}OH\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer94) Select the correct statement(s). (1) If the shortest wavelength of H-atom in Lyman series is x, then the longest wavelength in Balmer series of\[H{{e}^{+}}\]ion is\[\frac{9x}{5}\] (2) When an electron jumps from 4th excited state to ground state, maximum number of photons that may be emitted are 4 (3) Number of nodal planes and radial nodes in\[4{{d}_{{{x}^{2}}-{{y}^{2}}}}\]orbital are 2 and 1 respectively (4) All four quantum numbers are obtained from Schrodinger wave equation when applied on atom
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer95) Which of the following compounds will show geometrical isomerism? (1) 2-butene (2) Propene (3) 1-phenylpropene (4) 2-methyl-2-butene
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer96) Which of the following molecules contain (s) only primary hydrogen atoms? (1) Neo-pentane (2) Neo-hexane (3) 2, 2, 3, 3-tetramethylbutane (4) 2, 2, 3-trimethylpentane
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer97) The oxy acid(s) of S having\[SS\]bond are/is (1)\[{{H}_{2}}{{S}_{2}}{{O}_{3}}\]                             (2)\[{{H}_{2}}{{S}_{2}}{{O}_{4}}\] (3) \[{{H}_{2}}{{S}_{2}}{{O}_{7}}\]            (4)\[{{H}_{2}}{{S}_{2}}{{O}_{6}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer98) Which of the following statements are correct? (1) A triplet carbene is more stable than a singlet carbene (2) The carbocation,\[{{F}_{3}}C\overset{+}{\mathop{C}}\,\] is less stable than the carbocation,\[{{F}_{3}}\overset{+}{\mathop{C}}\,\] (3) Methyl carbanion is both isostructural and isoelectronic with ammonia (4) A singlet carbene is a paramagnetic species
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer99) The important tertiary structures of proteins are (1) a-helix (2) globular (3) \[\beta -\] pleated (4) fibrous
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer100) Which of the following statements about \[{{[Fe{{({{H}_{2}}O)}_{5}}NO]}^{2+}}\]are correct? (1) O.S. of Fe is +1 (2) C.N. of Fe is  6 (3) Charge on NO is +1 (4) O.S. of Fe is +2
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer101) Which one of the following is a matching set of a phylum and its three examples?
  A)
   Cnidaria ?Bonellia, Physalia, Aurelia
  done clear
  B)
   Platyhelminthes ?Planaria, Schistosoma, Ent-erobius
  done clear
  C)
   Mollusca?Loligo, Teredo, Octopus
  done clear
  D)
   Porifera? Spongilla, Euplectella, pennatula
  done clear
  View Answer play_arrow

• question_answer102) Metameric segmentation is the charactersiric of
  A)
   Platyhelminthes and Arthropoda
  done clear
  B)
   Echinodennata and Annelida
  done clear
  C)
   Annelida and Arthropoda
  done clear
  D)
   Mollusca and Chordata
  done clear
  View Answer play_arrow

• question_answer103) Which of the following statements regarding cilia is not correct?
  A)
   The organised beating of cilia is controlled by fluxes of \[C{{a}^{2+}}\]across the membrane
  done clear
  B)
   Cilia are hair-like cellular appendages
  done clear
  C)
   Microtubules of cilia are composed of tubulin
  done clear
  D)
   Cilia contain an outer ring of nine doublet microtubules surrounding two single microtubules
  done clear
  View Answer play_arrow

• question_answer104) A person showing upredictable moods, outbursts of emotion, quarrelsome behavior and conflicts with others is suffering from
  A)
   schizophrenia
  done clear
  B)
   Borderline Personality Disorder (BPD)
  done clear
  C)
   mood disorders
  done clear
  D)
   addictive disorders
  done clear
  View Answer play_arrow

• question_answer105) People living at sea level have around 5 million RBC per cubic millimetre of their blood whereas those living at an altitude of 5,400 metres have around 8 million. This is becuase at high altitude
  A)
   people get pollution-free air to breathe and more oxygen is available
  done clear
  B)
   atmospheric oxygen level is less and hence, more RBCs are needed to absorb the required amount of oxygen to survive
  done clear
  C)
   there is more UV radiation which enhances RBC production
  done clear
  D)
   people eat more nutritive food, therefore more RBCs are formed
  done clear
  View Answer play_arrow

• question_answer106) Biradial symmetry and lack of cnidoblasts are the characteristics of
  A)
   starfish and sea anemone
  done clear
  B)
   Ctenoplana and Beroe
  done clear
  C)
   Aurelia and Paramecium
  done clear
  D)
   Hydra and starfish
  done clear
  View Answer play_arrow

• question_answer107) Which of the following is an accumulation and release centre of neurohormones?
  A)
   Posterior pituitary lobe
  done clear
  B)
   Intermediate lobe of the pituitary
  done clear
  C)
   Hypothalamus
  done clear
  D)
   Anterior pituitary lobe
  done clear
  View Answer play_arrow

• question_answer108) Earthworms are
  A)
   ureotelic when plenty of water is available
  done clear
  B)
   uricotelic when plenty of water is available
  done clear
  C)
    uricotelic under conditions of water scarcity
  done clear
  D)
   ammonotelic when plenty of water is available
  done clear
  View Answer play_arrow

• question_answer109) What is common about Trypanosoma, Noctiluca, Monocystis and Giardia?
  A)
   These are all unicellular protists
  done clear
  B)
   They have flagella
  done clear
  C)
   They produce spores
  done clear
  D)
   These are all parasites
  done clear
  View Answer play_arrow

• question_answer110) The bacterium (Clostridium botulinum) that causes botulism is
  A)
   a facultative anaerobe
  done clear
  B)
   an obligate anaerobe
  done clear
  C)
    a facultative aerobe
  done clear
  D)
   an obligate aerobe
  done clear
  View Answer play_arrow

• question_answer111) Bowman's glands are found in
  A)
   olfactory epithelium
  done clear
  B)
   external auditory canal
  done clear
  C)
   cortical nephrons only
  done clear
  D)
   juxta medullary nephrons
  done clear
  View Answer play_arrow

• question_answer112) Which one of the following is not a second messenger in hormone action?
  A)
   cGMP                                  
  done clear
  B)
   Calcium
  done clear
  C)
   Sodium                               
  done clear
  D)
   cAMP
  done clear
  View Answer play_arrow

• question_answer113) Sertoli cells are regulated by the pituitary hormone known as
  A)
   FSH                                      
  done clear
  B)
   GH
  done clear
  C)
   prolactin                            
  done clear
  D)
   LH
  done clear
  View Answer play_arrow

• question_answer114) A steroid hormone which regulates glucose metabolism is
  A)
   cortisol
  done clear
  B)
   corticosterone
  done clear
  C)
    11-deoxycorticosterone
  done clear
  D)
   cortisone
  done clear
  View Answer play_arrow

• question_answer115) Cri-du-chat syndrome in humans is caused by the
  A)
   fertilisation of an \[\text{XX}\] egg by a normal \[\text{Y-}\]bearing sperm
  done clear
  B)
    loss of half of the short arm of hromosome5
  done clear
  C)
    loss of half of the long aim of chromosome 5
  done clear
  D)
   trisomy of 21st chromosome
  done clear
  View Answer play_arrow

• question_answer116) Which one of the following not act as a neurotransmitter?
  A)
   Acetylcholine                   
  done clear
  B)
   Epinephrine
  done clear
  C)
   Norepinephrine             
  done clear
  D)
   Cortisone
  done clear
  View Answer play_arrow

• question_answer117) The contractile protein of skeletal muscle involving ATP ase activity is          
  A)
   tropomyosin                    
  done clear
  B)
   myosin
  done clear
  C)
    \[\text{ }\!\!\alpha\!\!\text{ -}\]actinin                              
  done clear
  D)
   troponin
  done clear
  View Answer play_arrow

• question_answer118) Which one of the following has an open circulatory system?
  A)
   Pheretima                         
  done clear
  B)
   Periplaneta
  done clear
  C)
   Hirudinaria        
  done clear
  D)
   Octopus
  done clear
  View Answer play_arrow

• question_answer119) In which one of the following sets of animals do all the four give birth to young ones?
  A)
   Lion, bat, whale, ostrich
  done clear
  B)
   Platypus, penguin, bat, hippopotamus
  done clear
  C)
   Shrew, bat, cat, kiwi
  done clear
  D)
   Kangaroo, hedgehog, dolphin, loris
  done clear
  View Answer play_arrow

• question_answer120) Which one of the following statements is incorrect?
  A)
   The residual air in lungs slightly decreases the efficiency of respiration in mammals
  done clear
  B)
   The presence of non-respirtory air sacs, increases the efficiency of respiration in birds
  done clear
  C)
   In insects, circulating body fluids serve to distribute oxygen to tissues
  done clear
  D)
   The principle of countercurrent flow facilitates efficient respiration in gills of fishes
  done clear
  View Answer play_arrow

• question_answer121) Angiotensinogen is a protein produced and  secreted by
  A)
   macula densa cells
  done clear
  B)
   endothelial cells (cells lining the blood vessels)
  done clear
  C)
   liver cells
  done clear
  D)
   juxtaglomerular (JG) cells
  done clear
  View Answer play_arrow

• question_answer122) Examination of blood of a person supsected of having anaemia, shows large, immature, nucleated erythrocytes without haemoglobin. Supplementing his diet with which of the following, is likely to alleviate his symptoms?
  A)
   Thiamine
  done clear
  B)
   Folic acid and cobalamine
  done clear
  C)
   Riboflavin
  done clear
  D)
   Iron compounds
  done clear
  View Answer play_arrow

• question_answer123) Both sickle cell anaemia and Huntington's chorea are
  A)
   bacteria-related diseases
  done clear
  B)
   congenital disorders
  done clear
  C)
    pollutant-induced disorders
  done clear
  D)
   virus-related diseases
  done clear
  View Answer play_arrow

• question_answer124) Areolar connective tissue joins
  A)
   fat body with muscles
  done clear
  B)
   integument with muscles
  done clear
  C)
    bones with muscles
  done clear
  D)
   bones with bones
  done clear
  View Answer play_arrow

• question_answer125) Mast cells secrete
  A)
   hippurin                             
  done clear
  B)
   myoglobin
  done clear
  C)
    histamine                         
  done clear
  D)
   haemoglobin
  done clear
  View Answer play_arrow

• question_answer126) In class-Chondrichthyes (1) notochord is persistent through life (2) gill slits are separate and without operculum (3) skin is tough, containing minute placoid scales (4) tympanum represents ear
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer127) In the case of humans, the placenta comprises which of the following? (1) Endothelium of maternal blood capillaries (2) Endothelium of foetal blood capillaries (3) Foetal epithelium (4) Connective tissue surrounding foetal blood capillaries
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer128) Which of the following statements are correct? (1) Wings of insects and bats are analogous organs (2) Wings of insects and birds are analogous organs (3) Wings of birds and bats are homologous organs (4) Wings of insects and birds are homologous organs
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer129) In Cetacea, due to aquatic mode of life, which of the following characteristics are the adaptations that have taken place? (1) Loss of hair on the skin (2) Loss of sweat glands (3) Presence of thick blubber (4) Presence of swim bladder
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer130) Which of the following are tiger reserves under the project tiger? (1) Bandipur wildlife sanctuary (2) Manas wildlife sanctuary (3) Simlipal wildlife sanctuary (4) Keibaul Lamjao National Park
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer131) Identify the correctly matched pairs.

  List\[\text{-I}\]	List\[\text{-II}\]
  (Animal)	(Organ of locomotion)
  (1) Pila	(1) Cilia
  (2) Asterias	(2) Tube feet
  (3) Euglena	(3) Seta
  (4) Paramecium	(4) Flagellum

  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer132) Which of the following statements are correct? (1) The classification of Protozoa is based on type of locomotory organelle (2)  Tapeworm belongs to the phylum Platyhelminthes because it is triploblasdc and acoelomate (3)  Tapeworm belongs to class-Cestoidea because its body consists of metameres (4) The protozoans of the class-Sarcodina possesses flagellum as the locomotory organelle
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer133) Which of the following statements are correct? (1) Dicondylic skull is charactersitic of all anamniotes (2) The jaw of placental mammal is formed by a single bone called dentary (3) Sweat glands are absent in Cetacea and Sirenict (4) The horn of Indian Rhinoceros is formed by gluing of epidermal keratin fibres
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer134) Placenta present in mammals acts as an endocrine tissue and produces (1) human chorionic gonadotropin (2) oestrogen (3) progesterone (4) testosterone
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer135) Select the correct statements about \[lac\] operon. (1) Glucose or galactose may bind with the represser and inactivate it (2) In the absence of lactose, the represser binds with the operator region (3) The Z-gene codes for permease (4) This was elucidated by Francois Jacob and Jacques Monod
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer136) Study the four statements given below and select the two correct ones out of them. (1) A lion eating a deer and sparrow feeding on grain are ecologically similar in being consumers (2) Predator star fish Pisaster helps in maintaining species diversity of some invertebrates (3) Predators  ultimately  lead  to  the extinction of prey species (4) Production of chemicals such as nicotine, strychnine by the plants are metabolic disorders
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer137) Which of the following statements about biomedical technologies are correct? (1) During open heart surgery, blood is circulated in the heart-lung machine (2) Blockage in coronary arteries is removed by angiography (3) Computerised Axial Tomography (CAT shows detailed internal structure as see- in a section of body (4) X-ray provides clear and detailed images of organs like prostate glands and lungs
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer138) Which of the following statements about certain desert animals such as kangaroo rat are true? (1) They have dark colour and high rate of reproduction and excrete solid urine (2) They feed on dry seeds and do not require drinking water (3) They do not drink water, breathe at a slow rate to conserve water and haw their body covered with thick hairs (4) They excrete very concentrated urine and do not use water to regulate body, temperature
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer139) Which of the following statements regarding a DNA segment 1,000 base pair long are correct? (1) It measures 3,400Å (2) It has 10 complete turns (3) The RNA synthesised from it carries nucleotides (4) It has 100 nucleotides
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer140) Which of the following sets of dental formulae have been correctly matched?

  	Animal	Incisor	Canine	Premolar	Molar
  (1)	Rabbit	3/3	1/1	4/4	3/2
  (2)	Cat	2/1	0/0	3/2	3/3
  (3)	Man	3/3	1/2	2/2	1/1
  (4)	Dog	2/2	1/1	2/2	3/3

  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer141) Which of the following statements are correct? (1) Grey matter surrounds the white matter in the spinal cord (2) Grey matter surrounds the white matter in the brain (3) White matter surrounds the grey matter in the spinal cord (4) White matter surrounds the grey matter in the brain
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer142) Which of the following pairs are correctly matched? (1) Poikilo-osmotic ?Animals show osmotic dependence with respect to the environment (2) Homio-osmodc?Animals maintain body          fluid concentrations constant irrespective (of fluctuation in the environmental concentrations (3) Euryhaline?Animals with stand aquatic media of a wide   range    of concentrations (4) Stenohaline ?Animals     survive within a wide range of salinities
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer143) Which of the following statements are correct? A marathon runner is likely to show (1) reduced heart rate (2) enlarged heart (3) larger stroke volume (4) decreased arterial blood pressure
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer144) D-glucose, D-galactose and D-fructose are all (1) isomers                         (2) epimers (3) monosaccharides      (4) aldohexoses
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer145) Those attribute to recessive mutations in human beings include (1) phenylketonuria (2) galactosemia (3) duchenne muscular dystrophy (4) huntington's cholera
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer146) Which of the following statements are correct? (1) Histones are found in all organisms that have nuclei (2) Histones are remvoed temporarily during transcription (3) Any change in the amino acid sequenced of histone proteins is harmless for organism (4) There are eleven types of histones
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer147) Uremia (1) is the inflammation of glomeruli in kidney (2) is the accumulation of urea in blood (3) stone or insoluble mass of crystallized salts formed within the kidney (4) may lead to kidney failure
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer148) Myasthenia gravis (1) rapid spasms in muscle due to low \[C{{a}^{2+}}\]in body fluid (2) auto-immune disorder (3) inflammation of joints (4) affect neuromuscular junction
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer149) Cranial meninges consists of (1) duramater                    (2) arachnoid (3) piamater                       (4)corpus callosum
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer150) Aqueous chamber (1) space between the lens and the retina (2) space between cornea and the lens (3) contains a thin watery fluid (4) contains a transparent gel
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer151) In nucleoplasm, a spherical body attached to particular chromosome on a definite position is called
  A)
   nucleolus                           
  done clear
  B)
   karyolymph
  done clear
  C)
    plasmid                             
  done clear
  D)
   reticulum
  done clear
  View Answer play_arrow

• question_answer152) Single filament of Nostoc without mucilage sheath is called as
  A)
   colony                                 
  done clear
  B)
   mycelium
  done clear
  C)
   trichome                            
  done clear
  D)
   hyphae
  done clear
  View Answer play_arrow

• question_answer153) Pollination by snail and slug is called as
  A)
   entomophilous                               
  done clear
  B)
   malacophilous
  done clear
  C)
    omithophilous                                
  done clear
  D)
   chiropterophilous
  done clear
  View Answer play_arrow

• question_answer154) A mature ligule having a prominent basal portion, is called
  A)
   glossopodium                                  
  done clear
  B)
   rhizophore
  done clear
  C)
    trichome                           
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer155) The formation of multivalents at meiosis in dipioid organism is due to
  A)
   monosomy                       
  done clear
  B)
   deletion
  done clear
  C)
    inversion
  done clear
  D)
   reciprocal translocation
  done clear
  View Answer play_arrow

• question_answer156) In photosynthesis, splitting of water and release of oxygen occur during
  A)
   photolysis                         
  done clear
  B)
   red drop
  done clear
  C)
    Pasteur effect                                
  done clear
  D)
   Calvin cycle
  done clear
  View Answer play_arrow

• question_answer157) Which of the following is gaseous hormone?
  A)
   Auxin                                  
  done clear
  B)
   Ethylene
  done clear
  C)
    Cytokinin                          
  done clear
  D)
   GA
  done clear
  View Answer play_arrow

• question_answer158) Largest ovule in plant kingdom are found in
  A)
   Pinus                                   
  done clear
  B)
   Cycas
  done clear
  C)
    Thuja                                  
  done clear
  D)
   Gnetum
  done clear
  View Answer play_arrow

• question_answer159) In angiosperms, the endosperm is        
  A)
   dipioid                                
  done clear
  B)
   triploid      
  done clear
  C)
   haploid                               
  done clear
  D)
   polyploid    
  done clear
  View Answer play_arrow

• question_answer160) Hormogonia are vegetative reproductive structure of
  A)
   Spirogyra                           
  done clear
  B)
   Ulothrix
  done clear
  C)
   Oscillatoria                        
  done clear
  D)
    yeast        
  done clear
  View Answer play_arrow

• question_answer161) Which is unicellular fungus?             
  A)
   Yeast                                   
  done clear
  B)
   E. coli       
  done clear
  C)
   Nostoc                                
  done clear
  D)
   Albugo     
  done clear
  View Answer play_arrow

• question_answer162) In which group of the following would you place the plant having vascular tissue and lacking seeds?
  A)
   Algae                                   
  done clear
  B)
   Fungi
  done clear
  C)
   Bryophytes                      
  done clear
  D)
   Pteridophyies
  done clear
  View Answer play_arrow

• question_answer163) The main function of phloem is translocation of:                                     
  A)
   food                                    
  done clear
  B)
   water        
  done clear
  C)
   mineral                               
  done clear
  D)
   air
  done clear
  View Answer play_arrow

• question_answer164) National Botanical Research Institute is situated at
  A)
   Delhi                                    
  done clear
  B)
   Lucknow
  done clear
  C)
   Kolkata                               
  done clear
  D)
   Dehradun
  done clear
  View Answer play_arrow

• question_answer165) Which is weedicide?
  A)
   \[\text{IAA}\]                                  
  done clear
  B)
   2,4-D
  done clear
  C)
   \[\text{IBA}\]                                  
  done clear
  D)
   \[\text{NNA}\]
  done clear
  View Answer play_arrow

• question_answer166) Plant material, which is used in culture medium is obtained from
  A)
   Cycos                                  
  done clear
  B)
   loconut milk
  done clear
  C)
    Pinus                                  
  done clear
  D)
   mango
  done clear
  View Answer play_arrow

• question_answer167) Auxanometer is used to measure
  A)
   length                                 
  done clear
  B)
   respiration
  done clear
  C)
   transpiration                                    
  done clear
  D)
   ascent of sap
  done clear
  View Answer play_arrow

• question_answer168) Which is a saprophytic angiosperm?
  A)
   Cuscuta                              
  done clear
  B)
   Neottia
  done clear
  C)
    Agaricus                            
  done clear
  D)
   Yeast
  done clear
  View Answer play_arrow

• question_answer169) Cristae help in
  A)
   respiration                        
  done clear
  B)
   photosynthesis
  done clear
  C)
   transpiration                                    
  done clear
  D)
    guttation
  done clear
  View Answer play_arrow

• question_answer170) Theory of pangenesis was given by
  A)
   Lamarck                             
  done clear
  B)
   Oparin
  done clear
  C)
   Darwin                                
  done clear
  D)
   de Vries
  done clear
  View Answer play_arrow

• question_answer171) Sometime a ladder like structure in Spirogyra is formed due to
  A)
   lateral conjugation
  done clear
  B)
   asexual reproduction
  done clear
  C)
   scalar form conjugation
  done clear
  D)
   direct conjugation
  done clear
  View Answer play_arrow

• question_answer172) In moss capsule, the number of peristome whorls are
  A)
   one                                      
  done clear
  B)
   two
  done clear
  C)
   three                                   
  done clear
  D)
   four
  done clear
  View Answer play_arrow

• question_answer173) The trees occurring in two stories is the charactersitic feature of
  A)
   temperate deciduous forest
  done clear
  B)
   tropical savanna
  done clear
  C)
   grassland
  done clear
  D)
   coniferous forest
  done clear
  View Answer play_arrow

• question_answer174) What would be the number of chromosomes in the cells of the aleurone layer in a plant species with eight chromosomes in its synergids?
  A)
   16                                         
  done clear
  B)
   24
  done clear
  C)
   32                                         
  done clear
  D)
   8
  done clear
  View Answer play_arrow

• question_answer175) Pineapple (ananas) fruit develops from                
  A)
   a unilocular polycarpellary flower
  done clear
  B)
   a multipistillate syncarpous flower
  done clear
  C)
   a cluster of compactly borne flowers on a common axis
  done clear
  D)
   a multilocular monocarpellary flower
  done clear
  View Answer play_arrow

• question_answer176) Segmental allopolyploids are the polyploids in which (1)the chromosomes are derived from different genomes (2) the chromosomes for multivalents during meiosis (3) the genomes involved are not quite different from one another (4) they carry markers
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer177) Which of the following are generated from genetically engineered microbes? (1) Insulin (2) Human growth hormone (3) Interferons (4) \[\text{HIV}\] surface antigens
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer178) Which of the following are carnivorous? (1) Darlingtonia                                 (2) Dionaea (3) Arabidopsis                  (4) Sarracenia
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer179) Identify the correctly matched pairs.

  \[\text{List}\,\text{I}\] (Plant)	\[\text{List}\,\text{II}\] (Phenomena)
  (1) Sinapis alba	(1) Control of gene expression
  (2) Barley roots	(2) Tanada effect
  (3) Mougeotia	(3) Chloroplast movement
  (4) Arabidopsis	(4) Vernalisation

  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer180) Which of the following diseases are caused by fungi?                        (1) Root knot of sugar cane (2) Root rot of wheat (3) Angular leaf spot of cotton (4) Wilt of cotton
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer181) Tissue culture is recommended for (1) multiplication of elite genotypes of userultrees (2) developing virus free plants (3) production of secondary metabolites (4) induction of polyploidy
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer182) Which of the following pairs are correctly matched? (1) DNP?Respiratory uncoupler (2) Kranz anatomy?C4 plants (3)TCA cycle?Metabolic mill (4) Antimycin-A?Inhibitor   of   protein synthesis
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer183) Which of the following produce starch? (1) Chlorophyceae                           (2) Dinophyceae (3) Cyanophyceae                           (4) Chrysophyceae
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer184) Which of the following belong to the coenzymes of pyruvate dehydrogenase complex? (1) Pyridoxal phosphate (2) Thiamine pyrophosphate (3) Tetrahydrophoiate (4) Lipoic acid
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer185) The modern synthetic theory of evolution assumes a positive role of which of the following in evolution? (1) Natural selection       (2) Acquired characters (3) Mutations (4) Artificial selection
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer186) The microalgae of commercial interest would include (1) Spimlina                                        (2) Spirogyra (3) Botryococcus                              (4) Dunaleilla
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer187) Which of the following angiosperm families possess vessels in the wood? (1) Magnoliaceae                             (2) Degeneriaceae (3) Annonaceae                                (4) Winteraceae
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer188) The fungal element of which of these classes are involved in forming lichens? (1) Ascomycetes                              (2) Zygomycetes (3) Basidiomycetes                          (4) Deuteromycetes
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer189) Which of the following are present in the caw of gymnosperms? (1) Naked ovules                              (2) Haploid endosperm (3) Double fertilisation (4) Absence of tracheids
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer190) Which of the following statements are correct? (1) Orchids are monocotyledonous plants (2) Orchids have ornamental values (3) Some orchids are epiphytes (4) All orchids are autotrophs
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer191) The ex situ conservation of generic resources can be done through (1) tissue culture practices (2) maintenance of sanctuaries (3) the establishment of germplasm banks (4) the establishment of national parks
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer192) Which of the following regions of India are designated as biodiversity hot spots in India? (1)Western Himalaya     (2) Eastern Himalaya (3) Eastern Ghats                             (4) Western Ghats                   
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer193) Which of these are secretory structures?   (1) Hydathodes                    (2) Salt glands                       (3) Nectaries                         (4) Lenticles
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer194) Which of the following codons are considered to be the termination codons in protein synthesis? (1) \[\text{UAA}\]                           (2) \[\text{UAC}\]        (3) \[\text{UAG}\]                           (4) \[\text{AUC}\]        
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer195) In case of double-stranded DNA, which of die following base ratios are equal to one ? (1) \[\text{(G+T)}\,\text{/(A}\,\text{+C)}\]                         (2) \[\text{(A+G)}\,\text{/(C}\,\text{+T)}\] (3) \[C\,\text{/G}\,\]                                      (4) \[\text{(A+T)}\,\text{/(G}\,\text{+C)}\]
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer196) Which of the following measures could be taken to successfully grow chick pea in an area where bacterial blight disease is common? (1) Spray with Bordeaux mixture (2) Use of only disease free seeds (3) Control of the insect vector of the disease pathogen                             (4) Use of varieties resistant to the disease  
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer197) Which of the following statements regarding the maintenance of carbon cycle in the biosphere are correct? (1) Plants utilise solar energy to convert CO2 and water into cellular materials and produce oxygen that animals consume (2) Energy used by an animal comes from the oxidation of plant material releasing CO2 and water (3) All decaying organic matter on the earth is ultimately degraded by moulds and bacteria to yield CO2 that escapes into the atmosphere (4) Oxygen produced by the plants during carbon assimilation is not a by-product
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer198) Conservation, preservation and further enhancement of vegetation cover on the earth would (1) reduce the green house effect (2) save valuable gene pools (3) reduce ecological backlashes (4) check thickening of the ozone layer
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer199) Which of the following pairs are correctly matched? (1) Assimilatory root?Photosynthesis (2) Fasciculated root? Food storage (3) Stilt root ?Mechanical support (4) Sucking root  ? Absorption of moisture from the air
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer200) Which of these do not occur in thylakoids? (1) Oxygen evolution     (2) Carbon dioxide fixation (3) NADPH formation (4) Chlorophyll biosynthesis
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow