Solved papers for Punjab Medical Punjab - MET Solved Paper-2005

done Punjab - MET Solved Paper-2005 Total Questions - 200

• question_answer1) An object accelerates from rest to a velocity \[27.5m/s\] in \[10\sec \] then the distance covered in next \[10\sec \] is
  A)
  \[550m\]                             
  done clear
  B)
  \[137.5m\]
  done clear
  C)
  \[412.5m\]                         
  done clear
  D)
  \[175m\]
  done clear
  View Answer play_arrow

• question_answer2) The position vector of a particle is \[\overset{\to }{\mathop{\text{j}}}\,=(a\cos \omega t)\overset{\hat{\ }}{\mathop{i}}\,\text{ + }(a\sin \omega t)\overset{\hat{\ }}{\mathop{\text{j}}}\,\] The velocity vector of the particle is
  A)
   parallel to position vector
  done clear
  B)
   perpendicular to position vector
  done clear
  C)
   directed towards the origin
  done clear
  D)
   directed away from the origin
  done clear
  View Answer play_arrow

• question_answer3) If a person sitting in a train moving with a constant velocity along a straight line, throws a ball vertically upwards then
  A)
   ball will fall onwards the train
  done clear
  B)
   ball will return to throwers hand
  done clear
  C)
   ball will not return to throwers hand
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer4) A stone thrown at an angle \[\theta \] to the horizontal reaches a maximum height\[H\]. Then the time of flight of stone will be
  A)
  \[\sqrt{\frac{2\,\,H}{g}}\]                            
  done clear
  B)
  \[2\sqrt{\frac{2\,\,H}{g}}\]
  done clear
  C)
  \[\frac{2\sqrt{2H\sin \theta }}{g}\]                         
  done clear
  D)
  \[\frac{\sqrt{2H\sin \theta }}{g}\]
  done clear
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• question_answer5) At the height\[80m\], an aeroplane is moved with\[150m/s\]. A bomb is dropped from it so as to hit a target. At what distance from the target should the bomb be dropped?\[(giveng=10m/{{s}^{2}})\].
  A)
  \[605.3m\]                         
  done clear
  B)
  \[600m\]
  done clear
  C)
  \[80m\]                                               
  done clear
  D)
  \[230m\]
  done clear
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• question_answer6) A spring has length I and spring constant\[k\]. If spring is divided in two equal parts then spring constant of each part is
  A)
  \[k\]                                     
  done clear
  B)
  \[\frac{k}{2}\]
  done clear
  C)
  \[2\,\,k\]                                            
  done clear
  D)
  \[4\,\,k\]
  done clear
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• question_answer7) A body is moving along a rough horizontal surface with an initial velocity\[6m/s\]. If the body comes to rest after travelling a distance \[9\,\,m\], then the coefficient of sliding friction will be
  A)
  \[0.4\]                                  
  done clear
  B)
  \[0.2\]
  done clear
  C)
  \[0.6\]                                  
  done clear
  D)
  \[0.8\]
  done clear
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• question_answer8) While walking on ice, one should take small steps to avoid slipping. This is because smaller steps ensure
  A)
   large friction
  done clear
  B)
   smaller friction
  done clear
  C)
   larger normal face
  done clear
  D)
   smaller normal face
  done clear
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• question_answer9) If the momentum of body is increased by \[100%\] then the percentage increase in the kinetic energy will be
  A)
  \[330%\]                             
  done clear
  B)
  \[225%\]
  done clear
  C)
  \[200%\]                             
  done clear
  D)
  \[300%\]
  done clear
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• question_answer10) A ball of mass \[m\] moves with speed \[v\] and strikes a wall having infinite mass and it returns with same speed then the work done by the ball on the wall is
  A)
  \[zero\]                                               
  done clear
  B)
  \[mv\mathbf{J}\]
  done clear
  C)
  \[m/v\mathbf{J}\]                         
  done clear
  D)
  \[v/m\mathbf{J}\]
  done clear
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• question_answer11) A bullet of mass \[0.1\,\,kg\] is fired with a speed of\[100\,\,m/s\]. The mass of gun being\[50\,\,kg\]. Then the velocity of recoil become
  A)
  \[0.05m/s\]                       
  done clear
  B)
  \[0.5m/s\]
  done clear
  C)
  \[0.1m/s\]                          
  done clear
  D)
  \[0.2m/s\]
  done clear
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• question_answer12) A body of mass \[M\] moves with velocity \[v\] and collides elastically with another body of mass \[m(M>\,\,>m)\] at rest then the velocity of body of mass \[m\] is
  A)
  \[v\]                                     
  done clear
  B)
  \[2\,\,v\]
  done clear
  C)
  \[v/2\]                                 
  done clear
  D)
  \[zero\]
  done clear
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• question_answer13) If torque is zero then
  A)
   angular momentum is conserved
  done clear
  B)
   linear momentum is conserved
  done clear
  C)
   energy is conserved
  done clear
  D)
   angular momentum is not conserved
  done clear
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• question_answer14) A solid sphere, a hollow sphere and a disc having same mass and radius roll down the same inclined plane from rest. Which one will reach the ground in least time?
  A)
   Solid sphere
  done clear
  B)
   Hollow sphere
  done clear
  C)
   Disc
  done clear
  D)
   All will reach in same time
  done clear
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• question_answer15) In simple harmonic motion maximum velocity is at
  A)
   extreme position
  done clear
  B)
   half of extreme position
  done clear
  C)
   equilibrium position
  done clear
  D)
   between extreme and equilibrium position
  done clear
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• question_answer16) Shearing stress is related to:
  A)
   length      
  done clear
  B)
   volume
  done clear
  C)
   shape                                  
  done clear
  D)
   area
  done clear
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• question_answer17) The ratio of root mean square velocities of \[{{O}_{3}}\] and \[{{O}_{2}}\] is
  A)
  \[1:1\]                                  
  done clear
  B)
  \[2:3\]
  done clear
  C)
  \[3:2\]                                  
  done clear
  D)
  \[\sqrt{2}:\sqrt{3}\]
  done clear
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• question_answer18) If mass of \[He\] is 4 times that of hydrogen then mean velocity of \[He\] is
  A)
   2 times of \[H-\]mean value
  done clear
  B)
   1/2 times of \[H\] mean value
  done clear
  C)
   4 times of \[H\] mean value
  done clear
  D)
   same as \[H-\]mean value
  done clear
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• question_answer19) The ratio of radii of two spheres of same material is\[1:4\]. Then the ratio of their heat capacities will be
  A)
  \[\frac{1}{64}\]                                
  done clear
  B)
  \[\frac{1}{32}\]
  done clear
  C)
  \[\frac{1}{2}\]                                   
  done clear
  D)
  \[\frac{1}{4}\]
  done clear
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• question_answer20) First law of thermodynamics is a consequence of the conservation of
  A)
   energy
  done clear
  B)
   charge
  done clear
  C)
   heat
  done clear
  D)
   all of these
  done clear
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• question_answer21) An ideal heat engine exhausting heat at \[{{77}^{o}}C\] is to have \[30%\] efficiency. It must take heat at
  A)
  \[{{127}^{o}}C\]                               
  done clear
  B)
  \[{{227}^{o}}C\]
  done clear
  C)
  \[{{327}^{o}}C\]                               
  done clear
  D)
  \[{{673}^{o}}C\]
  done clear
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• question_answer22)  A liquid cools from \[{{50}^{o}}C\] to \[{{45}^{o}}C\] in 5 minutes and from \[{{45}^{o}}C\] to \[{{41.5}^{o}}C\] in the nest 5 minutes. The temperature of the surrounding is
  A)
  \[{{27}^{o}}C\]                 
  done clear
  B)
  \[{{40.3}^{o}}C\]
  done clear
  C)
  \[{{23.3}^{o}}C\]                             
  done clear
  D)
  \[{{33.3}^{o}}C\]
  done clear
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• question_answer23) At\[{{127}^{o}}C\]radiated energy is\[2.7\times {{10}^{-3}}J/s\].  At what temperature radiated energy is\[4.32\times {{10}^{6}}J/s\]?
  A)
  \[400K\]                              
  done clear
  B)
  \[4000K\]
  done clear
  C)
  \[80000K\]                         
  done clear
  D)
  \[40000K\]
  done clear
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• question_answer24) If wave equation is\[y=0.08\sin \frac{2\pi }{\lambda }(200t-x)\]then the velocity of the wave will be
  A)
  \[400\sqrt{2}m/s\]
  done clear
  B)
  \[200\sqrt{2}m/s\]
  done clear
  C)
  \[400m/s\]
  done clear
  D)
  \[200m/s\]
  done clear
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• question_answer25) When a light ray incidents from air to glass and reflected, angle of incidence is\[{{57}^{o}}\]. What will be the incident angle for reflection again when it incidents from water to glass?
  A)
  \[\theta <{{57}^{o}}\]
  done clear
  B)
  \[\theta >{{57}^{o}}\]
  done clear
  C)
  \[\theta ={{57}^{o}}\]
  done clear
  D)
   Cant be determined
  done clear
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• question_answer26) A man having height \[6\,\,m\], observes image of \[2\,\,m\] height erect, then mirror used is
  A)
   concave                             
  done clear
  B)
   convex
  done clear
  C)
   plane                                   
  done clear
  D)
   none of these
  done clear
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• question_answer27) Which of the following statements is true?
  A)
   If wavelength of light increases then frequency also increases
  done clear
  B)
   If energy increases then frequency also increases
  done clear
  C)
   Frequency of red light is greater than frequency of blue light
  done clear
  D)
   If energy increases then frequency decreases
  done clear
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• question_answer28) If focal lengths of the objective and the eye piece of a telescope be \[{{f}_{o}}\] and \[{{f}_{e}}\] respectively then its magnification is
  A)
  \[\frac{1}{2}({{f}_{o}}+{{f}_{e}})\]                           
  done clear
  B)
  \[{{f}_{o}}/{{f}_{e}}\]
  done clear
  C)
  \[({{f}_{o}}+{{f}_{e}})\]                
  done clear
  D)
  \[{{f}_{o}}\times {{f}_{e}}\]
  done clear
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• question_answer29) Near and far points of human eye are
  A)
   \[25cm\] and infinite
  done clear
  B)
   \[50cm\] and \[100cm\]
  done clear
  C)
   \[25cm\] and \[50cm\]
  done clear
  D)
   \[0cm\]and \[25cm\]
  done clear
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• question_answer30) Work done in carrying a charge around an equipotential surface will
  A)
   increase                             
  done clear
  B)
   decrease
  done clear
  C)
   zero                                     
  done clear
  D)
   infinity
  done clear
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• question_answer31) An air parallel plate capactior has capacity\[C\]. When capacity and distance between plates are doubled when immersed in a liquid then dielectric constant of the liquid is
  A)
   1                                            
  done clear
  B)
   2
  done clear
  C)
   3                                            
  done clear
  D)
   4
  done clear
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• question_answer32) If the potential of a capacitor having capacity \[6\mu F\] is increased from \[10volt\] to \[20volt\] then increase \[m\] its energy is
  A)
  \[12\times {{10}^{-6}}J\]                              
  done clear
  B)
  \[9\times {{10}^{-4}}J\]
  done clear
  C)
  \[4.5\times {{10}^{-6}}J\]                            
  done clear
  D)
  \[2.25\times {{10}^{-6}}J\]
  done clear
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• question_answer33) If a rod has resistance \[4\Omega \] and if rod is turned as half cycle then the resistance along diameter is
  A)
  \[1.56\Omega \]                              
  done clear
  B)
  \[2.44\Omega \]
  done clear
  C)
  \[4\Omega \]                                    
  done clear
  D)
  \[2\Omega \]
  done clear
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• question_answer34) A galvanometer of resistance \[22.8\Omega \] measures\[1\,\,A\]. How much shunt should be used so that it can be used to measure\[20\,\,A\]?
  A)
  \[1\Omega \]                                    
  done clear
  B)
  \[2\Omega \]
  done clear
  C)
  \[1.2\Omega \]                
  done clear
  D)
  \[2.2\Omega \]
  done clear
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• question_answer35) If an ammeter is joined parallel through a circuit, it can be damaged due to excess
  A)
   resistance         
  done clear
  B)
   current
  done clear
  C)
   voltage                               
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer36) The heat produced by a 100 watt heater in 2 minutes will be equal to
  A)
  \[12\times {{10}^{3}}J\]
  done clear
  B)
  \[10\times {{10}^{3}}J\]
  done clear
  C)
  \[6\times {{10}^{3}}J\]                  
  done clear
  D)
  \[3\times {{10}^{3}}J\]
  done clear
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• question_answer37) Two wires have resistances \[R\] and \[2R\]. When both are joining in series and in parallel then ratio of heats generated in these situations on applying the same voltage, is:
  A)
  \[2:1\]                                  
  done clear
  B)
  \[1:2\]
  done clear
  C)
  \[2:9\]                                  
  done clear
  D)
  \[9:2\]
  done clear
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• question_answer38) The current in a coil decreases from \[1A\] to \[0.2A\]in\[10\sec \]. The coefficient of self-inductance, if induced emf is \[0.4volt\], is:
  A)
  \[5H\]                                  
  done clear
  B)
  \[3H\]
  done clear
  C)
  \[4H\]                                  
  done clear
  D)
  \[2H\]
  done clear
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• question_answer39) Cyclotron is a device which is used to
  A)
   measure the charge
  done clear
  B)
   measure the voltage
  done clear
  C)
   accelerating protons
  done clear
  D)
   accelerating electrons
  done clear
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• question_answer40) In \[L-R\] circuit, resistance is \[8\Omega \] and inductive   reactance is\[6\Omega \], then impedance is
  A)
  \[2\Omega \]                                    
  done clear
  B)
  \[14\Omega \]
  done clear
  C)
  \[4\Omega \]                                    
  done clear
  D)
  \[10\Omega \]
  done clear
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• question_answer41) A cylindrical bar magnet is kept along the axis of a-circular coil. If the magnet is rotated about its axis, passing through the centre, perpendicular to the face, then:
  A)
   a current will be induced in the coil
  done clear
  B)
   no current will be induced in the coil
  done clear
  C)
   an emf and a current both will be induced in the coil
  done clear
  D)
   none of these
  done clear
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• question_answer42) Dimension of Plancks constant is
  A)
  \[[M{{L}^{2}}{{T}^{-1}}]\]                            
  done clear
  B)
  \[[ML{{T}^{-2}}]\]
  done clear
  C)
  \[[M{{L}^{-2}}T]\]                           
  done clear
  D)
  \[[M{{L}^{-1}}{{T}^{2}}]\]
  done clear
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• question_answer43) The ratio of areas within the electron orbits for the first excited state to the ground state for hydrogen atom, is
  A)
  \[16:1\]                               
  done clear
  B)
  \[18:1\]
  done clear
  C)
  \[4:1\]                                  
  done clear
  D)
  \[2:1\]
  done clear
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• question_answer44) The kinetic energy of an electron revolving around a nucleus will be
  A)
   four times of its P.E.
  done clear
  B)
   twice of its P. E.
  done clear
  C)
   equal to its P. E.
  done clear
  D)
   half of its P. E.
  done clear
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• question_answer45) The X-ray cannot be diffracted by means of an ordinary grating due to
  A)
   large wavelength
  done clear
  B)
   high speed
  done clear
  C)
   short wavelength
  done clear
  D)
   all of these
  done clear
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• question_answer46) The nuclear energy produced in nuclear reactor is used to run
  A)
   a.c. motor
  done clear
  B)
   induction generator
  done clear
  C)
   electric generator
  done clear
  D)
   d.c. motor
  done clear
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• question_answer47) The dual nature of light is exhibited by
  A)
   diffraction and photoelectric effect
  done clear
  B)
   diffraction and reflection
  done clear
  C)
   refraction and interference
  done clear
  D)
   photoelectric effect
  done clear
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• question_answer48) The region of the atmosphere above troposphere is known as
  A)
   lithosphere       
  done clear
  B)
   upper sphere
  done clear
  C)
   ionosphere       
  done clear
  D)
   stratosphere
  done clear
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• question_answer49) Overlapping of the valence band and the conduction band is for
  A)
   conductor
  done clear
  B)
   insulator
  done clear
  C)
   semiconductor
  done clear
  D)
   all of the above
  done clear
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• question_answer50) The electrical conductivity of earths atmosphere increases with altitudes because of
  A)
   number of ions
  done clear
  B)
   accelerator protons
  done clear
  C)
   accelerating voltage
  done clear
  D)
   number of neutrons
  done clear
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• question_answer51) Arrange the following as increase in oxidation number:

  (i)\[M{{n}^{2+}}\]

  (ii)\[Mn{{O}_{2}}\]

  (iii)\[KMn{{O}_{4}}\]

  (iv)\[{{K}_{2}}Mn{{O}_{4}}\]

  A)
   (i) > (ii) > (iii) > (iv)
  done clear
  B)
   (i) < (ii) < (iv) < (iii)
  done clear
  C)
   (ii) < (iii) < (i) < (iv)
  done clear
  D)
   (iii) > (i) > (iv) > (ii)
  done clear
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• question_answer52) \[S-S\]bond is not present in:
  A)
  \[{{H}_{2}}{{S}_{2}}{{O}_{4}}\]                  
  done clear
  B)
  \[{{H}_{2}}{{S}_{2}}{{O}_{6}}\]
  done clear
  C)
  \[{{H}_{2}}{{S}_{2}}{{O}_{8}}\]                  
  done clear
  D)
   none of these
  done clear
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• question_answer53) A radioactive substance after 48 days remains \[25%\]of initial then find disintegration constant:
  A)
  \[2.89\times {{10}^{-2}}{{T}^{-1}}\]         
  done clear
  B)
  \[3.89\times {{10}^{-3}}{{T}^{-1}}\]
  done clear
  C)
  \[4.89\times {{10}^{-2}}{{T}^{-1}}\]         
  done clear
  D)
   none of these
  done clear
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• question_answer54) Correct order of reactivity:
  A)
  \[{{I}_{2}}>B{{r}_{2}}>C{{l}_{2}}>{{F}_{2}}\]        
  done clear
  B)
  \[B{{r}_{2}}>{{I}_{2}}>C{{l}_{2}}>{{F}_{2}}\]
  done clear
  C)
  \[C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}>{{F}_{2}}\]        
  done clear
  D)
  \[{{F}_{2}}>C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}\]
  done clear
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• question_answer55) Three  elements \[A,\,\,B\]and\[C\]having reduction potential\[-1.5\],\[-0.5\] and \[1.5\] then arrange in correct order according to reducing power:
  A)
  \[A>B>C\]                          
  done clear
  B)
  \[B>A>C\]
  done clear
  C)
  \[C>B>A\]                          
  done clear
  D)
  \[B>C>A\]
  done clear
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• question_answer56) The standard reduction potential \[E{}^\circ \] for the half reactions are as                 \[Zn\xrightarrow{{}}Z{{n}^{++}}+2{{e}^{-}},\,\,E{}^\circ =0.76V\]                 \[Cu\xrightarrow{{}}C{{u}^{++}}+2{{e}^{-}},\,\,E{}^\circ =0.34V\] The e.m.f. for the cell reaction                 \[Zn+C{{u}^{2+}}\xrightarrow{{}}Z{{n}^{2+}}+Cu\]
  A)
  \[0.42V\]                            
  done clear
  B)
  \[-0.42V\]
  done clear
  C)
  \[-1.1V\]                             
  done clear
  D)
  \[1.1V\]
  done clear
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• question_answer57) Variable oxidation state and degenerated orbital shows:
  A)
   \[s-\]block element
  done clear
  B)
   \[p-\]block element
  done clear
  C)
   \[d-\]block element
  done clear
  D)
   all of the above
  done clear
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• question_answer58) Which of the following is more acidic in nature?
  A)
  \[HClO\]                              
  done clear
  B)
  \[HCl{{O}_{2}}\]
  done clear
  C)
  \[HCl{{O}_{3}}\]                               
  done clear
  D)
  \[HCl{{O}_{4}}\]
  done clear
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• question_answer59) Unit of rate constant of zero order reaction is:
  A)
  \[tim{{e}^{-1}}\]
  done clear
  B)
  \[mol\,\,li{{t}^{-1}}{{\sec }^{-1}}\]
  done clear
  C)
  \[litre\,\,mo{{l}^{-1}}{{\sec }^{-1}}\]
  done clear
  D)
  \[litre\,\,mo{{l}^{-1}}\sec \]
  done clear
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• question_answer60) Mole fraction of a solute in benzene is 0.2 then find molality of solute:
  A)
  \[3.2\]                                  
  done clear
  B)
  \[2\]
  done clear
  C)
  \[4\]                                     
  done clear
  D)
  \[3.6\]
  done clear
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• question_answer61) What amount of water is added in \[40ml\] of \[NaOH\,\,(0.1N)\] which is neutralized by \[50ml\] of\[HCl\,\,(0.2N)\]?
  A)
  \[80ml\]                              
  done clear
  B)
  \[60ml\]
  done clear
  C)
  \[40ml\]                              
  done clear
  D)
  \[90ml\]
  done clear
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• question_answer62) Slope between \[PV\] and \[P\] at constant temperature is:
  A)
  \[zero\]                                               
  done clear
  B)
  \[1\]
  done clear
  C)
  \[\frac{1}{2}\]                                   
  done clear
  D)
  \[\frac{1}{\sqrt{2}}\]
  done clear
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• question_answer63) When pressure is applied to the equilibrium system ice \[\] water. Which of the following phenomenon will happen?
  A)
   More ice will be formed
  done clear
  B)
   Water will evaporate
  done clear
  C)
   More water will be formed
  done clear
  D)
   Equilibrium will not be formed
  done clear
  View Answer play_arrow

• question_answer64) For\[A\xrightarrow{{}}B,\,\,\Delta H=4\,\,Cal\,\,mo{{l}^{-1}}\],\[\Delta S=10\,\,Cal\,\,mo{{l}^{-1}}{{K}^{-1}}\]reaction is spontaneous when temperature can be:
  A)
  \[400K\]
  done clear
  B)
  \[300K\]
  done clear
  C)
  \[500K\]
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer65) Degree of dissociation of \[N{{H}_{4}}OH\] in water is\[1.8\times {{10}^{-5}}\], then hydrolysis constant of \[N{{H}_{4}}Cl\] is:
  A)
  \[1.8\times {{10}^{-5}}\]                              
  done clear
  B)
  \[1.8\times {{10}^{-10}}\]
  done clear
  C)
  \[5.55\times {{10}^{-5}}\]                            
  done clear
  D)
  \[5.55\times {{10}^{-10}}\]
  done clear
  View Answer play_arrow

• question_answer66) A current of strength 2.5 amp was passed through \[CuS{{O}_{4}}\] solution for 6 minutes 26 seconds. The amount of copper deposited is: (At. wt. of\[Cu=63.5,\,\,1\,\,F=96500\]coulomb)
  A)
  \[0.3175\,\,g\]
  done clear
  B)
  \[3.175\,\,g\]
  done clear
  C)
  \[0.635\,\,g\]
  done clear
  D)
  \[6.35\,\,g\]
  done clear
  View Answer play_arrow

• question_answer67) The charge on an electron was discovered by:
  A)
   J.J. Thomson
  done clear
  B)
   Neil Bohr
  done clear
  C)
   James Chadwick
  done clear
  D)
   Millikan
  done clear
  View Answer play_arrow

• question_answer68) The normality of mixture obtained by mixing \[100ml\] of \[0.2\,\,M\,\,{{H}_{2}}S{{O}_{4}}+100\,\,ml\] of\[0.2\,\,M\,\,NaOH\]is:
  A)
  \[0.2\]                                  
  done clear
  B)
  \[0.01\]
  done clear
  C)
  \[0.1\]                                  
  done clear
  D)
  \[0.3\]
  done clear
  View Answer play_arrow

• question_answer69) The Bohrs orbit radius for the hydrogen atom \[(n=1)\] is approximately\[0.53\overset{\text{o}}{\mathop{\text{A}}}\,\]. The radius for the first excited state \[(n=2)\] orbit is:
  A)
  \[0.27\overset{\text{o}}{\mathop{\text{A}}}\,\]                             
  done clear
  B)
  \[1.27\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
  \[2.12\overset{\text{o}}{\mathop{\text{A}}}\,\]                             
  done clear
  D)
  \[3.12\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer70) A gas has a vapour density\[11.2\]. The volume occupied by Ig of the gas at NTP is:
  A)
  \[1\,\,L\]                                             
  done clear
  B)
  \[11.2\,\,L\]
  done clear
  C)
  \[22.4\,\,L\]                       
  done clear
  D)
  \[4\,\,L\]
  done clear
  View Answer play_arrow

• question_answer71) If\[n=3\], \[f=0\]and\[m=0\], then atomic number is:
  A)
  \[12,\,\,13\]                      
  done clear
  B)
  \[13,\,\,14\]
  done clear
  C)
  \[10,\,\,11\]                      
  done clear
  D)
  \[11,\,\,12\]
  done clear
  View Answer play_arrow

• question_answer72) Which is not a colligative property?
  A)
   Osmotic pressure
  done clear
  B)
   Optical activity
  done clear
  C)
   Elevation in boiling point
  done clear
  D)
   Depression in freezing point
  done clear
  View Answer play_arrow

• question_answer73) The rate constant of a first order reaction is \[3\times {{10}^{-6}}\] per second and initial concentration is\[0.10\,\,M\]. Then the initial rate of reaction is:
  A)
  \[3\times {{10}^{-6}}m{{s}^{-1}}\]                           
  done clear
  B)
  \[3\times {{10}^{-8}}m{{s}^{-1}}\]
  done clear
  C)
  \[3\times {{10}^{-7}}m{{s}^{-1}}\]                           
  done clear
  D)
  \[3\times {{10}^{-9}}m{{s}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer74) \[C{{H}_{2}}=C{{H}_{2(g)}}+{{H}_{2(g)}}\to C{{H}_{3}}-C{{H}_{3(g)}}\] The heat of reaction is [bond energy of\[C-C=80\,\,Kcal,\]\[C=C=145\,\,kcal,\]\[C-H=98\,\,kcal,\,\,H-H=103\,\,kcal]\]
  A)
  \[-14\,\,kcal\]
  done clear
  B)
  \[-28\,\,kcal\]
  done clear
  C)
  \[-42\,\,kcal\]                   
  done clear
  D)
  \[-56\,\,kcal\]
  done clear
  View Answer play_arrow

• question_answer75) Tyndall effect is shown by:
  A)
   precipitate        
  done clear
  B)
   sol
  done clear
  C)
   plasma                                
  done clear
  D)
   solution
  done clear
  View Answer play_arrow

• question_answer76) If \[_{p}{{k}_{a}}\] values of four acids are given below at \[{{25}^{o}}C\] the strongest acid is:
  A)
  \[2.0\]                                  
  done clear
  B)
  \[2.5\]
  done clear
  C)
  \[3.0\]                                  
  done clear
  D)
  \[4.0\]
  done clear
  View Answer play_arrow

• question_answer77) The solubility of gas in liquid depend upon:
  A)
   the nature of gas
  done clear
  B)
   the nature of temperature
  done clear
  C)
   the nature of solvent
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer78) Write the \[IUPAC\] name of\[C{{H}_{3}}-C{{H}_{2}}-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix}  OH \\  | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{2}}-C{{H}_{3}}\]
  A)
   3-methylpentane-3-ol
  done clear
  B)
   3-hydroxyhexane
  done clear
  C)
   3-hydroxy-3-methyl pentane
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer79) Structure of natural rubber is
  A)
  \[{{H}_{2}}C=\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}\]
  done clear
  B)
  \[{{H}_{2}}C=\overset{\begin{smallmatrix}  Cl \\  | \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}\]
  done clear
  C)
  \[{{H}_{2}}C=\underset{\begin{smallmatrix}  | \\  {{C}_{6}}{{H}_{5}} \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}\]
  done clear
  D)
  \[-{{(C{{H}_{2}}-C{{H}_{2}}-)}_{n}}\]
  done clear
  View Answer play_arrow

• question_answer80) \[C{{H}_{3}}-C{{H}_{2}}-O-C{{H}_{2}}-C{{H}_{3}}\] reacts with hot and excess HI, then formed product is : \[C{{H}_{3}}-C{{H}_{2}}-I\]and\[C{{H}_{3}}C{{H}_{2}}OH\]
  A)
  \[C{{H}_{3}}-C{{H}_{2}}-OH\]
  done clear
  B)
  \[C{{H}_{3}}-C{{H}_{3}}\]
  done clear
  C)
  \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}OH\]
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer81) \[X\]compounds reacts with \[Na\] to give\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\], then compound \[X\] is
  A)
  \[C{{H}_{3}}C{{H}_{2}}OH\]
  done clear
  B)
  \[C{{H}_{3}}C{{H}_{2}}-Cl\]
  done clear
  C)
  \[C{{H}_{3}}-C{{H}_{3}}\]
  done clear
  D)
  \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}OH\]
  done clear
  View Answer play_arrow

• question_answer82) In die following compound, least number of mono chlorination is possible:
  A)
  \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\]
  done clear
  B)
  \[C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{2}}-C{{H}_{3}}\]
  done clear
  C)
  \[C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}}\,-CH\]
  done clear
  D)
  \[C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer83) \[C{{H}_{3}}C{{H}_{2}}OH\]convert into \[C{{H}_{3}}CHO\] in the presence of:
  A)
  \[N{{a}_{2}}C{{r}_{2}}{{O}_{7}}\]and\[NaOH\]
  done clear
  B)
  \[N{{a}_{2}}C{{r}_{2}}{{O}_{7}}\]and\[dil\,\,{{H}_{2}}S{{O}_{4}}\]
  done clear
  C)
  \[NaOH\]
  done clear
  D)
  \[Fe\]in presence of\[NaOH\]
  done clear
  View Answer play_arrow

• question_answer84) Which of the following reactant give Tollens reagent and Fehlings solution test?
  A)
  \[C{{H}_{3}}CHO\]
  done clear
  B)
  \[C{{H}_{3}}COOH\]
  done clear
  C)
  \[C{{H}_{3}}-\underset{\begin{smallmatrix}  |\,| \\  O \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\]
  done clear
  D)
  \[C{{H}_{3}}-C{{H}_{2}}COOH\]
  done clear
  View Answer play_arrow

• question_answer85) The alcohol manufactured from water gas is:
  A)
  \[C{{H}_{3}}OH\]                             
  done clear
  B)
  \[{{C}_{2}}{{H}_{5}}OH\]
  done clear
  C)
  \[C{{H}_{3}}C{{H}_{2}}{{C}_{2}}OH\]      
  done clear
  D)
  \[{{(C{{H}_{3}})}_{2}}CHOH\]
  done clear
  View Answer play_arrow

• question_answer86) The most stable alkene is:
  A)
  \[{{R}_{2}}C=C{{R}_{2}}\]                            
  done clear
  B)
  \[RCH=CHR\]
  done clear
  C)
  \[C{{H}_{2}}=C{{H}_{2}}\]                            
  done clear
  D)
  \[RCH=C{{R}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer87) The most favourable condition for the manufacture of \[N{{H}_{3}}\] is:
  A)
   high temperature and high pressure
  done clear
  B)
   low temperature and low pressure
  done clear
  C)
   high temperature and low pressure
  done clear
  D)
   low temperature and high pressure
  done clear
  View Answer play_arrow

• question_answer88) The conversion of benzaldehyde into benzyl alcohol takes place by:
  A)
   Fittig reaction
  done clear
  B)
   Wurtz Fitting reaction
  done clear
  C)
   Wurtz reaction
  done clear
  D)
   Cannizzaros reaction
  done clear
  View Answer play_arrow

• question_answer89) Paracetamol is an:
  A)
   antibiotic           
  done clear
  B)
   antipyretic
  done clear
  C)
   antimalarial       
  done clear
  D)
   analgesic
  done clear
  View Answer play_arrow

• question_answer90) Benzaldehyde gives a positive test with:
  A)
   Tollens reagent
  done clear
  B)
   Fehling solution
  done clear
  C)
   Benedicts solution
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer91) Which of the following is not soluble in\[NaOH?\]
  A)
  \[Fe{{(OH)}_{3}}\]                          
  done clear
  B)
  \[Zn{{(OH)}_{2}}\]
  done clear
  C)
  \[Al{{(OH)}_{3}}\]                           
  done clear
  D)
  \[Sn{{(OH)}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer92) Which of the following has least oxidation state of\[Fe\]?
  A)
  \[{{K}_{3}}[Fe{{(OH)}_{6}}]\]
  done clear
  B)
  \[{{K}_{2}}[Fe{{O}_{4}}]\]
  done clear
  C)
  \[FeS{{O}_{4}}{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\cdot 6{{H}_{2}}O\]
  done clear
  D)
  \[{{[Fe{{(CN)}_{6}}]}^{3-}}\]
  done clear
  View Answer play_arrow

• question_answer93) Green vitriol is formed by :
  A)
  \[Fe{{S}_{2}}+{{H}_{2}}O+{{O}_{2}}\]
  done clear
  B)
  \[Fe{{S}_{2}}+{{H}_{2}}O+C{{O}_{2}}\]
  done clear
  C)
  \[Fe{{S}_{2}}+CO+C{{O}_{2}}\]
  done clear
  D)
  \[Fe{{S}_{2}}+CO\]
  done clear
  View Answer play_arrow

• question_answer94) \[NaOH+{{P}_{4}}+{{H}_{2}}O\xrightarrow{{}}\]
  A)
  \[P{{H}_{3}}+Na{{H}_{2}}P{{O}_{2}}\]    
  done clear
  B)
  \[P{{H}_{3}}+N{{a}_{2}}P{{O}_{4}}\]
  done clear
  C)
  \[P{{H}_{3}}+N{{a}_{2}}HP{{O}_{2}}\]    
  done clear
  D)
  \[{{H}_{3}}P{{O}_{4}}+NaO\]
  done clear
  View Answer play_arrow

• question_answer95) Slag is represented by :
  A)
  \[CaSi{{O}_{3}}\]                             
  done clear
  B)
  \[Si{{O}_{3}}\]
  done clear
  C)
  \[Ca{{(OH)}_{2}}\]                          
  done clear
  D)
  \[CaO\]
  done clear
  View Answer play_arrow

• question_answer96) Which of the following is not a nucleophile?
  A)
  \[B{{F}_{3}}\]                                    
  done clear
  B)
  \[N{{H}_{3}}\]
  done clear
  C)
  \[C{{N}^{-}}\]                                   
  done clear
  D)
  \[O{{H}^{-}}\]
  done clear
  View Answer play_arrow

• question_answer97) Fuming sulphuric acid is:
  A)
  \[{{H}_{2}}S{{O}_{4}}+S{{O}_{3}}\]                          
  done clear
  B)
  \[{{H}_{2}}S{{O}_{4}}+S{{O}_{2}}\]
  done clear
  C)
  \[{{H}_{2}}S{{O}_{4}}\]                 
  done clear
  D)
  \[{{H}_{2}}S{{O}_{4}}+S{{O}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer98) On strong heating \[MgC{{l}_{2}}\cdot 6{{H}_{2}}O\], the product obtained is:
  A)
  \[MgC{{l}_{2}}\]                              
  done clear
  B)
  \[MgO\]
  done clear
  C)
  \[MgC{{l}_{2}}\cdot 2{{H}_{2}}O\]           
  done clear
  D)
  \[MgC{{l}_{2}}\cdot 4{{H}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer99) The highest first ionisation potential is of:
  A)
   carbon                                
  done clear
  B)
   boron
  done clear
  C)
   oxygen                               
  done clear
  D)
   nitrogen
  done clear
  View Answer play_arrow

• question_answer100) In sulphur detection of an organic compound,   sodium   nitroprusside solution is added to sodium extract. Formation of violet colour is due to :
  A)
  \[N{{a}_{3}}Fe{{(CN)}_{6}}\]
  done clear
  B)
  \[N{{a}_{3}}[Fe{{(CN)}_{5}}NOSNa]\]
  done clear
  C)
  \[Fe{{(CNS)}_{3}}\]
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer101) One of the major difficulties in the biological control of insect pest is that:
  A)
   the method is less effective as compared with the use of insecticides
  done clear
  B)
   the predator does not always survive when   transferred to a new environment
  done clear
  C)
   the predator develop a preference to other diets and may itself become a pest
  done clear
  D)
   the practical difficulty of introducing the predator to specific area
  done clear
  View Answer play_arrow

• question_answer102) The wild type E. coli cells are growing in normal medium with glucose. They are transferred to a medium containing only lactose as sugar. Which of the following changes take place?
  A)
   E. coli cells stop dividing
  done clear
  B)
   The lac operon is induced
  done clear
  C)
   The lac operon is repressed
  done clear
  D)
   All operons are induced
  done clear
  View Answer play_arrow

• question_answer103) In India, human population is heavily weighted towards the younger age group as a result of:
  A)
   short life span of many individuals and low birth rate
  done clear
  B)
   short life span of many individuals and high birth rate
  done clear
  C)
   long life span of many individuals and high birth rate
  done clear
  D)
   long life span of many individuals and low birth rate
  done clear
  View Answer play_arrow

• question_answer104) When two genetic loci produce identical phenotypes in cis and irons position they are considered to be:
  A)
   pseudoallels   
  done clear
  B)
   multiple allels
  done clear
  C)
   the part of same gene
  done clear
  D)
   different genes
  done clear
  View Answer play_arrow

• question_answer105) If the DNA codons are \[ATG\,ATG\,ATG\] and a cytosine base is inserted at the beginning, then which of the following will result?
  A)
  \[C\,ATG\,ATG\,ATG\]
  done clear
  B)
  \[CAT\,GAT\,GAT\,G\]
  done clear
  C)
   A non-sense mutation
  done clear
  D)
  \[CA\,TGA\,TGA\,TG\]
  done clear
  View Answer play_arrow

• question_answer106) If we completely remove the decomposers from an ecosystem, its functioning will be adversely affected because :
  A)
   herbivores will not receive solar energy
  done clear
  B)
   mineral movement will be blocked very high
  done clear
  C)
   the rate of decomposition will be very high
  done clear
  D)
   energy flow will be blocked
  done clear
  View Answer play_arrow

• question_answer107) According to accepted concept of hormone action, if receptor molecules are removed from target organs, then the target organ will:
  A)
   continue to respond to hormone but in opposite way
  done clear
  B)
   continue to respond to the hormone without any difference
  done clear
  C)
   continue to respond to hormone but will require higher concentration
  done clear
  D)
   not respond to the hormone
  done clear
  View Answer play_arrow

• question_answer108) Although much \[C{{O}_{2}}\] is carried in blood, yet blood does not become acidic because:
  A)
   \[C{{O}_{2}}\] is continuously diffused through the tissues and is not allowed to accumulate
  done clear
  B)
   \[C{{O}_{2}}\] combines with water to form \[{{H}_{2}}C{{O}_{3}}\] which is neutralized by \[N{{a}_{2}}C{{O}_{3}}\]
  done clear
  C)
   in \[C{{O}_{2}}\] transport, blood buffers play an important role
  done clear
  D)
   \[C{{O}_{2}}\] is absorbed by leucocytes
  done clear
  View Answer play_arrow

• question_answer109) The closely related morphologically similar sympatric population, but reproductively isolated are designated as :
  A)
   demes                                
  done clear
  B)
   clones
  done clear
  C)
   sibling species
  done clear
  D)
   dines
  done clear
  View Answer play_arrow

• question_answer110) By which nervous system and of what type the blood is supplied into visceral organs?
  A)
   Sympathetic nervous system, voluntary
  done clear
  B)
   Sympathetic nervous system, involuntary
  done clear
  C)
   Parasympathetic nervous system, involuntary
  done clear
  D)
   Both SNS and PNS involuntary
  done clear
  View Answer play_arrow

• question_answer111) Which of the following is a typical example of feed back inhibition?
  A)
   Sulpha drugs and folic acid synthesizer bacteria
  done clear
  B)
   Allosteric inhibition of hexokinase by glucose \[6-\]phosphate
  done clear
  C)
   Reaction between succinic dehydrogenase and succinic acid
  done clear
  D)
   Cyanide and cytochrome reaction
  done clear
  View Answer play_arrow

• question_answer112) Evolutionary convergence is characterized by:
  A)
   development of dissimilar characteristics in closely related groups
  done clear
  B)
   replacement of common characteristics in different groups
  done clear
  C)
   development of a common set of characteristics in groups of different ancestry
  done clear
  D)
   development of characteristics by random mating
  done clear
  View Answer play_arrow

• question_answer113) If a person shows production of inter ferons in his body, the chances are that he got an infection of:
  A)
   malaria                               
  done clear
  B)
   measles
  done clear
  C)
   typhoid                              
  done clear
  D)
   tetanus
  done clear
  View Answer play_arrow

• question_answer114) Which of the following communities is more vulnerable to invasion by outside animals and plants?
  A)
   Temperate forests
  done clear
  B)
   Tropical evergreen
  done clear
  C)
   Oceanic island communities
  done clear
  D)
   Mangroves
  done clear
  View Answer play_arrow

• question_answer115) Maurers dots are observed in the erythrocytes of man if these are infected with:
  A)
   Plasmodium malariae
  done clear
  B)
   Plasmodium vivax
  done clear
  C)
   Plasmodium falciparum
  done clear
  D)
   Plasmodium ovale
  done clear
  View Answer play_arrow

• question_answer116) Axenic culture is:
  A)
   pure culture of a microbe without any nutrient
  done clear
  B)
   pure culture without any contamination
  done clear
  C)
   culture of tissue
  done clear
  D)
   culture of gene
  done clear
  View Answer play_arrow

• question_answer117) A chemical substance when irradiated with UV rays, absorbs radiations and emits visible light is called:
  A)
   luminescent
  done clear
  B)
   flourochrome
  done clear
  C)
   bioluminescence
  done clear
  D)
   metachrome
  done clear
  View Answer play_arrow

• question_answer118) Metachromasia is:
  A)
   staining of a cell component by a stain that gives other colour
  done clear
  B)
   behaviour of a cell
  done clear
  C)
   behaviour of chromosomes at metaphase
  done clear
  D)
   development of scientific attitude
  done clear
  View Answer play_arrow

• question_answer119) Energy transfers or transformations are never 100% efficient. This is due to:
  A)
   entropy                              
  done clear
  B)
   homeostasis
  done clear
  C)
   catabolism        
  done clear
  D)
   anabolism
  done clear
  View Answer play_arrow

• question_answer120) The elongation of the leading strand during DNA synthesis:
  A)
   progresses away from the replication fork
  done clear
  B)
   occur in\[3\xrightarrow{{}}5\]direction
  done clear
  C)
   produces Okazaki fragment
  done clear
  D)
   depend on the action of DNA polymerase
  done clear
  View Answer play_arrow

• question_answer121) Why does cytosine make pair with guanine and not with adenine?
  A)
   \[C-A\] pair would be too wide to fit in the double helix
  done clear
  B)
   \[C\] and \[A\] are both polar
  done clear
  C)
   \[C-A\] pair would not reach across the double helix
  done clear
  D)
   The functional groups that form \[H-\]bond are not complementary between \[C\] and\[A\]
  done clear
  View Answer play_arrow

• question_answer122) Sperm enters from which part of egg?
  A)
   From animal pole in unfertilized egg
  done clear
  B)
   From vegetal pole in unfertilized egg
  done clear
  C)
   Anywhere in unfertilized egg except animal pole
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer123) Photorespiration involves the oxidation of:
  A)
   PGA                                     
  done clear
  B)
  \[RuBP\]
  done clear
  C)
   chlorophyll\[-a\]            
  done clear
  D)
   both \[a\] and\[b\]
  done clear
  View Answer play_arrow

• question_answer124) Sex-limited and sex linked genes are located on:
  A)
   autosomes       
  done clear
  B)
   \[X-\]chromosome
  done clear
  C)
   \[Y-\]chromosome        
  done clear
  D)
   both \[b\] and\[c\]
  done clear
  View Answer play_arrow

• question_answer125) St. Anthonys fire disease is caused by:
  A)
   bacteria                              
  done clear
  B)
   fungus
  done clear
  C)
   nematodes       
  done clear
  D)
   polychaete
  done clear
  View Answer play_arrow

• question_answer126) All monerans:
  A)
   contain DNA and RNA
  done clear
  B)
   demonstrate a long circular strand of DNA not found enclosed in a nuclear membrane
  done clear
  C)
   are bacteria    
  done clear
  D)
   all of these
  done clear
  View Answer play_arrow

• question_answer127) Most animals are :
  A)
   diploid                                
  done clear
  B)
   haploid
  done clear
  C)
   heterotrophic                  
  done clear
  D)
   both \[a\] and \[c\]
  done clear
  View Answer play_arrow

• question_answer128) In bony vertebrates, the laying down of bone is often preceded by the presence of:
  A)
   chitin                                   
  done clear
  B)
   starch
  done clear
  C)
   cartilage             
  done clear
  D)
   platelets
  done clear
  View Answer play_arrow

• question_answer129) The movement of the nerve impulse across synaptic cleft is primarily:
  A)
   a chemical event
  done clear
  B)
   a physical event
  done clear
  C)
   an electrical event
  done clear
  D)
   a biological event
  done clear
  View Answer play_arrow

• question_answer130) Acetylchol in esterase enzyme splits acetylcholine into:
  A)
   acetone and choline
  done clear
  B)
   acetic acid arid choline
  done clear
  C)
   aspartic acid and actylcho line
  done clear
  D)
   ammo acid and choline
  done clear
  View Answer play_arrow

• question_answer131) he nerve net of Hydra lacks :
  A)
   neurons
  done clear
  B)
   connections
  done clear
  C)
   dendrites
  done clear
  D)
   directions in impulse
  done clear
  View Answer play_arrow

• question_answer132) Annelids have a central nerve cord that is:
  A)
   impermeable to\[{{K}^{+}}\]
  done clear
  B)
   hollow
  done clear
  C)
   dorsal         
  done clear
  D)
   ventral
  done clear
  View Answer play_arrow

• question_answer133) The main component of photochemical smog is:
  A)
  \[S{{O}_{2}}\]                                   
  done clear
  B)
  \[PAN\]
  done clear
  C)
  \[{{O}_{3}}\]                                     
  done clear
  D)
   both\[b\]and\[c\]
  done clear
  View Answer play_arrow

• question_answer134) Geotrophic response is perceived by:
  A)
   mature roots  
  done clear
  B)
   elongating roots
  done clear
  C)
   root cap                             
  done clear
  D)
   root hairs
  done clear
  View Answer play_arrow

• question_answer135) Which of the following toxic material was present in Minimata bay of Japan?
  A)
  \[Cd\]                                  
  done clear
  B)
  \[Pb\]
  done clear
  C)
  \[Mg\]                                 
  done clear
  D)
  \[Hg\]
  done clear
  View Answer play_arrow

• question_answer136) Excess atmospheric \[C{{O}_{2}}\] increases greenhouse effect as\[C{{O}_{2}}\]:
  A)
   precipitates dust in the atmosphere
  done clear
  B)
   reduces atmospheric pressure
  done clear
  C)
   is opaque to infra red rays
  done clear
  D)
   is not opaque to infra red rays
  done clear
  View Answer play_arrow

• question_answer137) A mutagen pollutant is:
  A)
   organophosphates
  done clear
  B)
   resins
  done clear
  C)
   chlorinated hydrocarbons
  done clear
  D)
   nitrogen oxides
  done clear
  View Answer play_arrow

• question_answer138) Photophosphorylation differs from oxidative phosphorylation in requiring:
  A)
   input of energy in the form of light
  done clear
  B)
   input of energy in the form of heat
  done clear
  C)
   input of energy in the form of AMP
  done clear
  D)
   input of energy in the form of NAD
  done clear
  View Answer play_arrow

• question_answer139) Halophilic archae bacterium e.g. Halo bacterium salinarum found in great salt lake and dead sea cannot live in:
  A)
   less than \[3\,M\,NaCl\] concentration
  done clear
  B)
   less than \[5M\,NaCl\] concentration
  done clear
  C)
   more than\[4M\,NaCl\] concentration
  done clear
  D)
   more than \[3M\,NaCl\] concentration
  done clear
  View Answer play_arrow

• question_answer140) The ATP synthase of chloroplasts is like that of:
  A)
   peroxisomes    
  done clear
  B)
   golgi body
  done clear
  C)
   micro somes   
  done clear
  D)
   mitochondria
  done clear
  View Answer play_arrow

• question_answer141) An orchid resembling the female of an insect so as to be able to get pollinated, is due to a phenomenon of:
  A)
   mimicry
  done clear
  B)
   pseudo copulation
  done clear
  C)
   pseudo pollination
  done clear
  D)
   pseudoparthenocarpy
  done clear
  View Answer play_arrow

• question_answer142) The first life on earth consisted of:
  A)
   provirus                             
  done clear
  B)
   protovirus
  done clear
  C)
   virus                                    
  done clear
  D)
   bacteria
  done clear
  View Answer play_arrow

• question_answer143) Coacervates belongs to category of:
  A)
   cyanobacteria
  done clear
  B)
   protozoans
  done clear
  C)
   molecular aggregates
  done clear
  D)
   molecular aggregates surrounded by lipid membrane
  done clear
  View Answer play_arrow

• question_answer144) The oldest fossil record from India is of a blue-green alga which is 2.9 billion years old. It is:
  A)
   Archaeospheroides
  done clear
  B)
   Archaeoptenyx
  done clear
  C)
   Chlamydomonas
  done clear
  D)
   Stromatolites
  done clear
  View Answer play_arrow

• question_answer145) Kingdom Protista includes:
  A)
   life cycle showing sporic meiosis
  done clear
  B)
   life cycle showing zygotic meiosis
  done clear
  C)
   life cycle showing gametic meiosis
  done clear
  D)
   both \[b\] and \[c\]
  done clear
  View Answer play_arrow

• question_answer146) Euglenoid species that have chlorophyll are:
  A)
   facultative autotrophs
  done clear
  B)
   facultative heterotrophs
  done clear
  C)
   obligate heterotrophs
  done clear
  D)
   obligate autotrophs
  done clear
  View Answer play_arrow

• question_answer147) Which creatures are direct or indirect food of all creatures on the oceans surface?
  A)
   Protozoans       
  done clear
  B)
   Phytoplankton
  done clear
  C)
   Fish                                      
  done clear
  D)
   Aquatic insects
  done clear
  View Answer play_arrow

• question_answer148) Cellulose digestion in termites is carried out by:
  A)
   Monocystis       
  done clear
  B)
   Trichomonas
  done clear
  C)
   Trichonympha                 
  done clear
  D)
   Lophomonas
  done clear
  View Answer play_arrow

• question_answer149) Cellulose digesting zooflagellate found in wood cockroaches is:
  A)
   Lophomonas                    
  done clear
  B)
   Trichomonas
  done clear
  C)
   Trichonympha                 
  done clear
  D)
   Leishmania
  done clear
  View Answer play_arrow

• question_answer150) The fluidity of membranes in a plant in cold weather may be maintained by:
  A)
   increasing the number of phospholipids   with unsaturated hydrocarbon tails
  done clear
  B)
   increasing the proportion of integral proteins
  done clear
  C)
   increasing concentration of cholesterol in membrane
  done clear
  D)
   increasing the number of phospholipids    with saturated hydrocarbon tail
  done clear
  View Answer play_arrow

• question_answer151) The membrane potential of a cell favours the:
  A)
   movement of cations into the cell
  done clear
  B)
   movement of anions into the cell
  done clear
  C)
   action of a proton pump
  done clear
  D)
   action of an electrogenic pump
  done clear
  View Answer play_arrow

• question_answer152) A plant cell has 12 chromosomes at the end of mitosis. How many chromosomes would it have in the \[{{G}_{2}}\] phase of its next cell cycle?
  A)
   6                                            
  done clear
  B)
   8    
  done clear
  C)
   12                                         
  done clear
  D)
   24
  done clear
  View Answer play_arrow

• question_answer153) In animal cells, cytokinesis involves:
  A)
   the separation of sister chromatids
  done clear
  B)
   the contraction of the contractile ring of micro filaments
  done clear
  C)
   depolymerization of kinetochore microtubules
  done clear
  D)
   a protein kinase that phosphorylates other enzymes
  done clear
  View Answer play_arrow

• question_answer154) To cuvier, the differences in fossils from different strata were evidences for:
  A)
   divine creation
  done clear
  B)
   evolution by natural selection
  done clear
  C)
   continental drift
  done clear
  D)
   local catastrophic events such as droughts or floods
  done clear
  View Answer play_arrow

• question_answer155) Darwin proposed that new species evolve from ancestral forms by:
  A)
   the gradual accumulation of adaptations to changing environment
  done clear
  B)
   the inheritance of acquired adaptation to the environment
  done clear
  C)
   the struggle for limited resources
  done clear
  D)
   the accumulation of mutations
  done clear
  View Answer play_arrow

• question_answer156) The best description of natural selection is:
  A)
   the survival of the fittest
  done clear
  B)
   the struggle for existence
  done clear
  C)
   the reproductive success of the members of a population best adapted to the environment
  done clear
  D)
   a change in the proportion of variation within a population
  done clear
  View Answer play_arrow

• question_answer157) Which of the following gene is responsible for biological nitrogen fixation?
  A)
   Nitrogenase     
  done clear
  B)
   Nif gene
  done clear
  C)
   Yeast alanine \[t-\]RNA synthetase
  done clear
  D)
   RNA synthetase
  done clear
  View Answer play_arrow

• question_answer158) Carrageen, a jelly-like substance is obtained from:
  A)
   Chondrus          
  done clear
  B)
   Fucus
  done clear
  C)
   Sargassum        
  done clear
  D)
   Ulothrix
  done clear
  View Answer play_arrow

• question_answer159) In Amorphophalhis, vegetative reproduction occurs through:
  A)
   rhizome                             
  done clear
  B)
   corm
  done clear
  C)
   spores                                
  done clear
  D)
   conidia
  done clear
  View Answer play_arrow

• question_answer160) Haploid (n) plants are preferred over diploid plants for the study of mutation because:
  A)
   in haploids culturing is easy
  done clear
  B)
   in haploids only dominant mutation expresses
  done clear
  C)
   in haploid only recessive mutation expresses
  done clear
  D)
   all the mutations express
  done clear
  View Answer play_arrow

• question_answer161) Which of the following algae are suitable for human consumption?
  A)
   Laminaria and Fucus
  done clear
  B)
   Gracilaria and Chondrus
  done clear
  C)
   Porphyra and Spirogyra
  done clear
  D)
   Rhodymania and Porphyra
  done clear
  View Answer play_arrow

• question_answer162) Chemicals which are synthesised by one organism and affect the behaviour of another member of the same species are called?
  A)
   Enzymes                            
  done clear
  B)
   Hormones
  done clear
  C)
   Flavoids                              
  done clear
  D)
   Pheromones
  done clear
  View Answer play_arrow

• question_answer163) Encysted, non-motile and non-feeding infectious stage of Entamoeba histolytica is called:
  A)
   schizont                             
  done clear
  B)
   zygote
  done clear
  C)
   minutaform      
  done clear
  D)
   abiotic form
  done clear
  View Answer play_arrow

• question_answer164) Monoclonal antibodies are used for :
  A)
   immune suppression for kidney transplantation
  done clear
  B)
   growth induction
  done clear
  C)
   suppression of symptoms of rabies
  done clear
  D)
   treatment of breast cancer
  done clear
  View Answer play_arrow

• question_answer165) The band of fibres which join corpora quadrigemina to cerebellum is called:
  A)
   pons varolii   
  done clear
  B)
   valve of vieussens
  done clear
  C)
   corpus callosum
  done clear
  D)
   corpus striatum
  done clear
  View Answer play_arrow

• question_answer166) Which of the following flower shows nyctinastic movement?
  A)
   Pentapetes     
  done clear
  B)
   Albizzia lebbek
  done clear
  C)
   Mimosa pudica               
  done clear
  D)
   Bryophyllum
  done clear
  View Answer play_arrow

• question_answer167) Ephemerals are xerophytes that are:
  A)
   drought resisting
  done clear
  B)
   drought enduring
  done clear
  C)
   drought escaping
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer168) Which of the following have succulent root?
  A)
   Opuntia              
  done clear
  B)
   Aloe
  done clear
  C)
   Agave                                 
  done clear
  D)
   Asparagus
  done clear
  View Answer play_arrow

• question_answer169) Plants which behave as mesophytes in rainy season and as xerophytes in summers are called?
  A)
   Xerophytes      
  done clear
  B)
   Mesophytes
  done clear
  C)
   Trophophytes 
  done clear
  D)
   Phreatophytes
  done clear
  View Answer play_arrow

• question_answer170) In the initial stages of protoplast culture sorbitol/mannitol is added:
  A)
   as an additional source of carbon
  done clear
  B)
   as an additional source of energy
  done clear
  C)
   to keep cells alive after the removal of cell wall
  done clear
  D)
   as an osmotic stabilizer
  done clear
  View Answer play_arrow

• question_answer171) The effect of todays radioactive fallout will probably be more harmful to children of future generation than to children now living because:
  A)
   infants are more susceptible to radiations
  done clear
  B)
   susceptibility to radiation increase with age
  done clear
  C)
   mutated genes are frequently recessive
  done clear
  D)
   contamination of milk supply is not cumulative
  done clear
  View Answer play_arrow

• question_answer172) The molecular action of UV light is mainly reflected through:
  A)
   photodynamic action
  done clear
  B)
   formation of pyrimidine
  done clear
  C)
   formation of sticky metaphases
  done clear
  D)
   destruction of hydrogen bonds between DNA strands
  done clear
  View Answer play_arrow

• question_answer173) In crop improvement programme haploids are of great importance because they:
  A)
   grow better under adverse conditions
  done clear
  B)
   are useful in the study of meiosis
  done clear
  C)
   requires only about half the amount of chemical fertilizers compared to diploids
  done clear
  D)
   give homozygous lines
  done clear
  View Answer play_arrow

• question_answer174) The method of growing micro-organisms as a thin layer on nutrient medium is known as:
  A)
   suspended growth system
  done clear
  B)
   support growth system
  done clear
  C)
   thin layer growth system
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer175) Galic acid used in making ink is obtained with the help of:
  A)
   Aspergillus niger
  done clear
  B)
   Penicillium purpurogenum
  done clear
  C)
   Streptococcus lactis
  done clear
  D)
   Lactobacillus bulgaricus
  done clear
  View Answer play_arrow

• question_answer176) First vitamin to be produced through fermentation process using a wild bacterium was:
  A)
   vitamin\[D\]                     
  done clear
  B)
   vitamin\[C\]
  done clear
  C)
   vitamin\[{{B}_{12}}\]   
  done clear
  D)
   vitamin\[{{B}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer177) Which enzyme is useful as colour brightening agent in detergent industry?
  A)
   Amylase                             
  done clear
  B)
   Lipase
  done clear
  C)
   Protease            
  done clear
  D)
   Cellulase
  done clear
  View Answer play_arrow

• question_answer178) Which one of the following combinations of organisms are responsible for the formation and flavour of yoghurt?
  A)
   Lactobacillus casei and Streptococcus thermophiles
  done clear
  B)
   Rhizobium meliloti and Azotobacter
  done clear
  C)
   Bacillus subtilis and E. coli
  done clear
  D)
   Bacillus megathermus and Xanthomonas sp
  done clear
  View Answer play_arrow

• question_answer179) Hybridomas are result of the fusion of:
  A)
   normal antibody producing cell with myeloma
  done clear
  B)
   abnormal antibody producing cell with myeloma
  done clear
  C)
   male reproductive cell with myeloma
  done clear
  D)
   female reproductive cell with myeloma
  done clear
  View Answer play_arrow

• question_answer180) Morphactins are derivatives of:
  A)
   fluorene carboxylic acid
  done clear
  B)
   fluoro-malic acid
  done clear
  C)
   chlorofluoro carbons
  done clear
  D)
   methanogens
  done clear
  View Answer play_arrow

• question_answer181) Which of the following types of leucocytes secretes heparin and histamine?
  A)
   Acidophils         
  done clear
  B)
   Monocytes
  done clear
  C)
   Basophils           
  done clear
  D)
   Neutrophils
  done clear
  View Answer play_arrow

• question_answer182) Which of the following coagulating factor of blood is hypothetical?
  A)
   Christmas factor (IX)
  done clear
  B)
   Accelerin (VI)
  done clear
  C)
   Laki lovand factor (XIII)
  done clear
  D)
   Stuart power factor (X)
  done clear
  View Answer play_arrow

• question_answer183) Wolffian body also known as :
  A)
   pronephros      
  done clear
  B)
   mesonephros
  done clear
  C)
   metanephros  
  done clear
  D)
   abnormal heart
  done clear
  View Answer play_arrow

• question_answer184) Neopallium is found in the brain of :
  A)
   amphibia                           
  done clear
  B)
   advanced reptiles
  done clear
  C)
   mammals          
  done clear
  D)
   both \[b\] and \[c\]
  done clear
  View Answer play_arrow

• question_answer185) Tyioses are balloon like ingrowths in vessels developing from the adjoining:
  A)
   fibres through pits on vessel wall
  done clear
  B)
   fibres through the general surface of vessel wall
  done clear
  C)
   parenchyma through pits on vessel wall
  done clear
  D)
   parenchyma through the general surface of vessel wall
  done clear
  View Answer play_arrow

• question_answer186) The latest view for the origin of viruses is:
  A)
   these have arisen from nucleic acid and protein found in primitive soup
  done clear
  B)
   these arose from bacteria as a result of the loss of cell wall, ribosome etc.
  done clear
  C)
   these arose from some bacteria which had developed a nucleus only
  done clear
  D)
   these are modified plasmids which are in fact the fragments of the nucleic acids of the host
  done clear
  View Answer play_arrow

• question_answer187) Within the nucleus, DNA is organized along with proteins into material called:
  A)
   nuclear lamina
  done clear
  B)
   chromatin
  done clear
  C)
   chromosome                   
  done clear
  D)
   chromatid
  done clear
  View Answer play_arrow

• question_answer188) Which of the following is not a function of vacuole in plant cell?
  A)
   Storage                              
  done clear
  B)
   Waste disposal
  done clear
  C)
   Cell elongation and protection
  done clear
  D)
   Production of hydrogen peroxide
  done clear
  View Answer play_arrow

• question_answer189) Which statement regarding coenzyme is incorrect?
  A)
   Every coenzyme is a cofactor and every cofactor is a coenzyme
  done clear
  B)
   Every coenzyme is a cofactor but every cofactor is not a coenzyme
  done clear
  C)
   Most of the coenzymes are nucleotides and are composed of vitamins
  done clear
  D)
   Coenzymes are the active constituents of enzymes
  done clear
  View Answer play_arrow

• question_answer190) Ethylene is connected with:
  A)
   aerobic respiration
  done clear
  B)
   climacteric
  done clear
  C)
   anaerobic
  done clear
  D)
   fermentation
  done clear
  View Answer play_arrow

• question_answer191) Melanuria is caused by the abnormal catabolism of:
  A)
   alanine                               
  done clear
  B)
   tyrosine
  done clear
  C)
   proline                                
  done clear
  D)
   tryptophan
  done clear
  View Answer play_arrow

• question_answer192) During oxidation long chain fatty acids are first converted to acyl \[CoA\] in the:
  A)
   cytosol                                
  done clear
  B)
   mitochondria
  done clear
  C)
   lysosomes         
  done clear
  D)
   microsomes
  done clear
  View Answer play_arrow

• question_answer193) Under prolonged starvation, brain received energy from:
  A)
   carbohydrates                 
  done clear
  B)
   fats
  done clear
  C)
   proteins                             
  done clear
  D)
   acetoacetate
  done clear
  View Answer play_arrow

• question_answer194) Condensation product of adenine, ribose and phosphoric acid is named as:
  A)
   adenosine
  done clear
  B)
   adenylic acid
  done clear
  C)
   adenine phosphate
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer195) Synthesis of RNA molecule is terminated by a signal which is recognised by:
  A)
   \[\alpha \](alpha) factor
  done clear
  B)
   \[\gamma \](gamma) factor
  done clear
  C)
   \[\rho \](rho) factor
  done clear
  D)
   \[\delta \](delta) factor
  done clear
  View Answer play_arrow

• question_answer196) A portion of uric acid is converted to urea and ammonia by intestinal:
  A)
   urogenolysis   
  done clear
  B)
   ureolysis
  done clear
  C)
   uricolysis            
  done clear
  D)
   ureotolysis
  done clear
  View Answer play_arrow

• question_answer197) DNA is denatured by :
  A)
   lieat            
  done clear
  B)
   acid
  done clear
  C)
   DNA polymerase
  done clear
  D)
   both \[a\] and \[b\]
  done clear
  View Answer play_arrow

• question_answer198) Gout is a disease that affects the joints and leads to arthritis. It is associated with an abnormality of:
  A)
   pyrimidine metabolism
  done clear
  B)
   purine metabolism
  done clear
  C)
   fat metabolism
  done clear
  D)
   protein metabolism
  done clear
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• question_answer199) Calcium is required for the activation of the enzyme:
  A)
   isocitrate dehydrogenase
  done clear
  B)
   ATPase
  done clear
  C)
   fummarase
  done clear
  D)
   succinate thiokinase
  done clear
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• question_answer200) Wilsons disease is associated with the abnormal metabolism of:
  A)
   iron                                      
  done clear
  B)
   potassium
  done clear
  C)
   iodine                                 
  done clear
  D)
   copper
  done clear
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