Solved papers for CET Karnataka Medical CET - Karnataka Medical Solved Paper-2009

done CET - Karnataka Medical Solved Paper-2009 Total Questions - 180

• question_answer1) ­­In ruby laser, the stimulated emission is due to transition from
  A)
   metastable state to any lower state
  done clear
  B)
   any higher state to lower state
  done clear
  C)
   metastable state to ground state
  done clear
  D)
   any higher state to ground state
  done clear
  View Answer play_arrow

• question_answer2) A direct current I flows along the length of an infinitely long straight thin walled pipe, then the magnetic field is
  A)
   uniform throughout the pipe but not zero
  done clear
  B)
   zero only along the axis of the pipe
  done clear
  C)
   zero at any point inside the pipe
  done clear
  D)
   maximum at the centre and minimum at the edge
  done clear
  View Answer play_arrow

• question_answer3) A convex lens made of glass has focal length 0.15 m in air. If the refractive index of glass is \[\frac{3}{2}\] and that of water is \[\frac{4}{3}\], the focal length of lens when immersed in water is
  A)
   0.45 m          
  done clear
  B)
   0.15 m
  done clear
  C)
   0.30 m           
  done clear
  D)
   0.6 m
  done clear
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• question_answer4) Two sources are said to be coherent if they produce waves
  A)
   having a constant phase difference
  done clear
  B)
   of equal wavelength
  done clear
  C)
   of equal speed
  done clear
  D)
   having same shape of wave front
  done clear
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• question_answer5) Three resistors 1\[\Omega \], 2\[\Omega \] and 3\[\Omega \] are connected to form a triangle. Across 3\[\Omega \] resistor a 3 V battery is connected. The current through 3\[\Omega \] resistor is
  A)
   0.75 A           
  done clear
  B)
   1 A
  done clear
  C)
   2 A               
  done clear
  D)
   1.5 A
  done clear
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• question_answer6) In a common emitter amplifier the input signal is applied across
  A)
   anywhere        
  done clear
  B)
   emitter-collector
  done clear
  C)
   collector-base    
  done clear
  D)
   base-emitter
  done clear
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• question_answer7) In a radioactive disintegration, the ratio of initial number of atoms to the number of atoms present at an instant of time equal to its mean life is
  A)
   \[\frac{1}{{{e}^{2}}}\]
  done clear
  B)
   \[\frac{1}{e}\]
  done clear
  C)
   e                  
  done clear
  D)
   \[{{e}^{2}}\]
  done clear
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• question_answer8) A ray of light is incident on a surface of glass slab at an angle\[45{}^\circ \]. If the lateral shift produced per unit thickness is \[\frac{1}{\sqrt{3}}\]m, the angle of refraction produced is
  A)
   \[{{\tan }^{-1}}\left( \frac{\sqrt{3}}{2} \right)\]
  done clear
  B)
   \[{{\tan }^{-1}}\left( 1-\sqrt{\frac{2}{3}} \right)\]
  done clear
  C)
   \[si{{n}^{-1}}\left( 1-\sqrt{\frac{2}{3}} \right)\]
  done clear
  D)
   \[ta{{n}^{-1}}\left( \sqrt{\frac{2}{\sqrt{3}-1}} \right)\]
  done clear
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• question_answer9) Ferromagnetic materials used in a transformer must have
  A)
   low permeability and high hysterisis loss
  done clear
  B)
   high permeability and low hysterisis loss
  done clear
  C)
   high permeability and high hysterisis loss
  done clear
  D)
   low permeability and low hysterisis loss
  done clear
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• question_answer10) According to Newtons corpuscular theory, the speed of light is
  A)
   same in all the media
  done clear
  B)
   lesser in rarer medium
  done clear
  C)
   lesser in denser medium
  done clear
  D)
   independent of the medium
  done clear
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• question_answer11) For the constructive interference the path difference between the two interfering waves must be equal to
  A)
  \[\left( 2n+1 \right)\lambda \]
  done clear
  B)
   \[2n\pi \]
  done clear
  C)
   \[n\lambda \]
  done clear
  D)
   \[\left( 2n+1 \right)\frac{\lambda }{2}\]
  done clear
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• question_answer12) The accurate measurement of emf can be obtained using
  A)
   multimeter      
  done clear
  B)
   voltmeter
  done clear
  C)
   voltameter      
  done clear
  D)
   potentiometer
  done clear
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• question_answer13) The kinetic energy of an electron gets tripled, then the de-Broglie wavelength associated with it changes by a factor
  A)
   \[\frac{1}{3}\]
  done clear
  B)
   \[\sqrt{3}\]
  done clear
  C)
   \[\frac{1}{\sqrt{3}}\]
  done clear
  D)
   3
  done clear
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• question_answer14) Which of the following is not a thermodynamic coordinate?
  A)
   Gas constant (R)
  done clear
  B)
   Pressure (p)
  done clear
  C)
   Volume (V)     
  done clear
  D)
   Temperature (T)
  done clear
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• question_answer15) Two solid pieces, one of steel and the other of aluminium when immersed completely in water have equal weights. When the solid pieces are weighed in air
  A)
   the weight of aluminium is half the weight of steel
  done clear
  B)
   steel piece will weigh more
  done clear
  C)
   they have the same weight
  done clear
  D)
   aluminium piece will weigh more
  done clear
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• question_answer16) The amount of energy released when one microgram of matter is annihilated is
  A)
   \[25kWh~\]
  done clear
  B)
   \[9\times {{10}^{10}}kWh\]
  done clear
  C)
   \[3\times {{10}^{10}}kWh~~~~\]
  done clear
  D)
   \[0.5\times {{10}^{5}}kWh\]
  done clear
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• question_answer17) The number of significant figures in the numbers \[4.8000\times {{10}^{4}}\] and\[48000.50\]are respectively
  A)
   5 and 6         
  done clear
  B)
   5 and 7
  done clear
  C)
   2 and 7         
  done clear
  D)
   2 and 6
  done clear
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• question_answer18) \[\beta \]-decay means emission of electron from
  A)
   innermost electron orbit
  done clear
  B)
   a stable nucleus
  done clear
  C)
   outermost electron orbit
  done clear
  D)
   radioactive nucleus
  done clear
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• question_answer19) An electric heater rated 220 V and 550 W is connected to AC mains. The current drawn by it is
  A)
   0.8 A
  done clear
  B)
   2.5 A
  done clear
  C)
   0.4 A
  done clear
  D)
   1.25 A
  done clear
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• question_answer20) A body of mass m moving along a straight line covers half the distance with a speed of 2 ms-1. The remaining half of the distance is covered in two equal time intervals with a speed of 3 ms-1 and 5 ms-1 respectively. The average speed of the particle for the entire journey is
  A)
   \[\frac{3}{8}m{{s}^{-1}}\]          
  done clear
  B)
   \[\frac{8}{3}m{{s}^{-1}}\]
  done clear
  C)
   \[\frac{4}{3}m{{s}^{-1}}\]
  done clear
  D)
   \[\frac{16}{3}m{{s}^{-1}}\]
  done clear
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• question_answer21) The moment of inertia of a circular ring of radius r and mass M about diameter is
  A)
   \[\frac{2}{5}M{{r}^{2}}\]
  done clear
  B)
   \[\frac{M{{r}^{2}}}{4}\]
  done clear
  C)
   \[\frac{M{{r}^{2}}}{2}\]
  done clear
  D)
   \[\frac{M{{r}^{2}}}{12}\]
  done clear
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• question_answer22) A body of mass 0.05 kg is observed to fall with an acceleration of\[9.5\text{ }m{{s}^{-2}}\]. The opposing force of air on the body is \[\left( g=9.8\text{ }m{{s}^{-2}} \right)\]
  A)
   0.015 N         
  done clear
  B)
   0.15 N
  done clear
  C)
   0.030 N          
  done clear
  D)
   zero
  done clear
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• question_answer23) The colloidal solution in which both the dispersed phase and dispersion medium are liquids are called
  A)
   emulsions        
  done clear
  B)
   gels
  done clear
  C)
   foams           
  done clear
  D)
   liquid crystals
  done clear
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• question_answer24) In fog, photographs of the objects taken with infrared radiations are more clear than those obtained during visible light because
  A)
   I - R radiation has lesser wavelength than visible radiation
  done clear
  B)
   scattering of I - R light is more than visible light
  done clear
  C)
   the intensity of I - R light from the object is less
  done clear
  D)
   scattering of J - R light is less than visible light
  done clear
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• question_answer25) Three concurrent co-planar forces 1 N, 2 N and 3 N acting along different directions on a body
  A)
   can keep the body in equilibrium if 2 N and 3 N act at right angle
  done clear
  B)
   can keep the body in equilibrium if 1 N and 2 N act at right angle
  done clear
  C)
   cannot keep the body in equilibrium
  done clear
  D)
   can keep the body in equilibrium in 1 N and 3 N act at an acute angle
  done clear
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• question_answer26) Sound waves transfer
  A)
   only energy not momentum
  done clear
  B)
   energy
  done clear
  C)
   momentum
  done clear
  D)
   Both [a] and [b]
  done clear
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• question_answer27) Two rectangular blocks A and B of masses 2 kg and 3 kg respectively are connected by a spring of spring constant 10.8 Nm-1 and are placed on a frictionless horizontal surface. The block A was given an initial velocity of 0.15 ms-1 in the direction shown in the figure. The maximum compression of the spring during the motion is
  A)
   0.01 m          
  done clear
  B)
   0.02 m
  done clear
  C)
   0.05 m           
  done clear
  D)
   0.03 m
  done clear
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• question_answer28) G P Thomson experimentally confirmed the existence of matter waves by the phenomena
  A)
   diffraction       
  done clear
  B)
   refraction
  done clear
  C)
   polarisation      
  done clear
  D)
   scattering
  done clear
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• question_answer29) The resistance of a wire at 300 K is found to be 0.3 Sl. If the temperature coefficient of resistance of wire is\[1.5\times {{10}^{-3}}{{K}^{-1}}\], the temperature at which the resistance becomes 0.6\[\Omega \] is
  A)
   720 K          
  done clear
  B)
   345 K
  done clear
  C)
   993 K          
  done clear
  D)
   690 K
  done clear
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• question_answer30) The work done by a force acting on a body is as shown in the graph. The total work done in covering an initial distance of 20 m is
  A)
   225 J           
  done clear
  B)
   200 J
  done clear
  C)
   400 J           
  done clear
  D)
   175 J
  done clear
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• question_answer31) Two luminous point sources separated by a certain distance are at 10 km from an observer. If the aperture of his eye is \[2.5\times {{10}^{-3}}\]m and the wavelength of light used is 500 nm, the distance of separation between the point sources just seen to be resolved is
  A)
   12.2 m          
  done clear
  B)
   24.2 m
  done clear
  C)
   2.44 m          
  done clear
  D)
   1.22 m
  done clear
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• question_answer32) A door 1.6 m wide requires a force of 1 N to be applied at the free end to open or close it. The force that is required at a point 0.4 m distance from the hinges for opening or closing the door is
  A)
   1.2 N             
  done clear
  B)
   3.6 N
  done clear
  C)
   2.4 N             
  done clear
  D)
   4 N
  done clear
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• question_answer33)  \[0.1{{m}^{3}}\] of water at \[80{}^\circ C\]is mixed with \[0.3\text{ }{{m}^{3}}\] of water at\[60{}^\circ C\]. The final temperature of the mixture is
  A)
   \[65{}^\circ C\]
  done clear
  B)
   \[70{}^\circ C\]
  done clear
  C)
   \[60{}^\circ C\]            
  done clear
  D)
   \[75{}^\circ C\]
  done clear
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• question_answer34) The spectral series of the hydrogen atom that lies in the visible region of the electromagnetic spectrum
  A)
   Paschen        
  done clear
  B)
   Balmer
  done clear
  C)
   Lyman          
  done clear
  D)
   Brackett
  done clear
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• question_answer35) A graph of pressure versus volume for an ideal gas for different processes is as shown. In the graph curve OC represents
  A)
   isochoric process
  done clear
  B)
   isothermal process
  done clear
  C)
   isobaric process
  done clear
  D)
   adiabatic process
  done clear
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• question_answer36) Which of the following statement does not hold good for thermal radiation?
  A)
   The wavelength changes when it travels from one medium to another
  done clear
  B)
   The frequency changes when it travels from one medium to another
  done clear
  C)
   The speed changes when it travels from one medium to another
  done clear
  D)
   They travel in straight line in a given medium
  done clear
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• question_answer37) A planet revolves around the sun in an elliptical orbit. The linear speed of the planet will be maximum at
  A)
   D                 
  done clear
  B)
   B
  done clear
  C)
   A                 
  done clear
  D)
   C
  done clear
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• question_answer38) Horizontal tube of non-uniform cross-section has radii of 0.1 m and 0.05 m respectively at M and N. For a streamline flow of liquid the rate of liquid flow is
  A)
   changing continuously with time
  done clear
  B)
   greater at M-than at N
  done clear
  C)
   greater at N than at M
  done clear
  D)
   same at M and N
  done clear
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• question_answer39) A resistor and a capacitor are connected in series with an AC source. If the potential drop across the capacitor is 5 V and that across resistor is 12 V, then applied voltage is
  A)
   13 V            
  done clear
  B)
   17 V
  done clear
  C)
   5 V              
  done clear
  D)
   12 V
  done clear
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• question_answer40) The amount of heat energy radiated by a metal at temperature T is E. When the temperature is increased to 3T, energy radiated is
  A)
   81 E            
  done clear
  B)
   9 E
  done clear
  C)
   3 E              
  done clear
  D)
   27 E
  done clear
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• question_answer41) The angle of minimum deviation for an incident light ray on an equilateral prism is equal to its refracting angle. The refractive index of its material is
  A)
   \[\frac{1}{\sqrt{2}}\]
  done clear
  B)
   \[\sqrt{3}\]
  done clear
  C)
   \[\frac{\sqrt{3}}{2}\]
  done clear
  D)
   \[\frac{3}{2}\]
  done clear
  View Answer play_arrow

• question_answer42) In the following combinations of logic gates, the outputs of A, B and C are respectively

  [A]

  [B]

  [C]

  A)
   0, 1, 1             
  done clear
  B)
   0, 1, 0
  done clear
  C)
   1, 1, 0            
  done clear
  D)
   1, 0, 1
  done clear
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• question_answer43) A stationary point source of sound emits sound uniformly in all directions in a non-absorbing medium. Two points P and Q are at a distance of 4 m and 9 m respectively from the source. The ratio of amplitudes of the waves at P and Q is
  A)
   \[\frac{3}{2}\]
  done clear
  B)
   \[\frac{4}{9}\]
  done clear
  C)
   \[\frac{2}{3}\]
  done clear
  D)
   \[\frac{9}{4}\]
  done clear
  View Answer play_arrow

• question_answer44) A galvanometer of resistance 240\[\Omega \] allows only 4% of the main current after connecting a shunt resistance. The value of the shunt resistance is
  A)
   10\[\Omega \]            
  done clear
  B)
   20\[\Omega \]
  done clear
  C)
   8\[\Omega \]             
  done clear
  D)
   5\[\Omega \]
  done clear
  View Answer play_arrow

• question_answer45) The phenomena in which proton flips is
  A)
   nuclear magnetic resonance
  done clear
  B)
   lasers
  done clear
  C)
   radioactivity
  done clear
  D)
   nuclear fusion
  done clear
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• question_answer46) \[y=3\sin \pi \left( \frac{t}{2}-\frac{x}{4} \right)\]represents an equation of a progressive wave, where t is in second and \[x\] is in metre. The distance travelled by the wave in 5 s is
  A)
   8 m             
  done clear
  B)
   10 m
  done clear
  C)
   5 m              
  done clear
  D)
   32 m
  done clear
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• question_answer47) According to the quark model, it is possible to build all the hadrons using
  A)
   2 quarks and 3 antiquarks
  done clear
  B)
   3 quarks and 2 antiquarks
  done clear
  C)
   3 quarks and 3 antiquarks
  done clear
  D)
   2 quarks and 2 antiquarks
  done clear
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• question_answer48) An \[\alpha \]-particle of mass 6.4 x 10-27 kg and charge 3.2 x 10-19 C is situated in a uniform electric field of 1.6 x 105 Vm-1. The velocity of the particle at the end of 2 x 10-2 m path when it starts from rest is
  A)
   \[2\sqrt{3}\times {{10}^{5}}m{{s}^{-1}}\]  
  done clear
  B)
   \[8\times {{10}^{5}}m{{s}^{-1}}\]
  done clear
  C)
   \[16\times {{10}^{5}}m{{s}^{-1}}\]
  done clear
  D)
   \[4\sqrt{2}\times {{10}^{5}}m{{s}^{-1}}\]
  done clear
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• question_answer49) A cylindrical tube open at both the ends has a fundamental frequency of 390 Hz in air. If \[\frac{1}{4}\]th of the tube is immersed vertically in water the fundamental frequency of air column is
  A)
   260 Hz         
  done clear
  B)
   130 Hz
  done clear
  C)
   390 Hz         
  done clear
  D)
   520 Hz
  done clear
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• question_answer50) The surface temperature of the stars is determined using
  A)
   Plancks law
  done clear
  B)
   Wiens displacement law
  done clear
  C)
   Rayleigh-Jeans law
  done clear
  D)
   Kirchhoffs law
  done clear
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• question_answer51) The charge deposited on\[\text{4 }\!\!\mu\!\!\text{ F}\]capacitor in the circuit is
  A)
   \[6\times {{10}^{-6}}C\]
  done clear
  B)
   \[12\times {{10}^{-6}}C\]
  done clear
  C)
   \[24\times {{10}^{-6}}C\]
  done clear
  D)
   \[36\times {{10}^{-6}}C\]
  done clear
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• question_answer52) A parallel beam of light is incident on a converging lens parallel to its principal axis. As one moves away from the lens on the other side of the principal axis, the intensity of light
  A)
   first decreases and then increases
  done clear
  B)
   continuously increases
  done clear
  C)
   continuously decreases
  done clear
  D)
   first increases and then decreases
  done clear
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• question_answer53) Continuous emission spectrum is produced by
  A)
   incandescent electric lamp
  done clear
  B)
   mercury vapour lamp
  done clear
  C)
   sodium vapour lamp
  done clear
  D)
   polyatomic substances
  done clear
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• question_answer54) A coil of n number of turns is wound tightly in the form of a spiral with inner and outer radii a and b respectively. When a current of strength \[I\]is passed through the coil, the magnetic field at its centre is
  A)
   \[\frac{{{\mu }_{0}}nI}{\left( b-a \right)}{{\log }_{e}}\frac{a}{b}\]
  done clear
  B)
   \[\frac{{{\mu }_{0}}nI}{2\left( b-a \right)}\]
  done clear
  C)
   \[\frac{2{{\mu }_{0}}nI}{b}\]
  done clear
  D)
   \[\frac{{{\mu }_{0}}nI}{2\left( b-a \right)}{{\log }_{e}}\frac{b}{a}\]
  done clear
  View Answer play_arrow

• question_answer55) A ray of light is incident on a plane mirror at an angle of\[60{}^\circ \]. The angle of deviation produced by the mirror is
  A)
   \[120{}^\circ ~\]
  done clear
  B)
   \[30{}^\circ \]
  done clear
  C)
   \[60{}^\circ ~\]
  done clear
  D)
   \[90{}^\circ \]
  done clear
  View Answer play_arrow

• question_answer56) The electric potential at any point x, y, z in metres is given by\[V=\text{ }3{{x}^{2}}\]. The electric field at a point (2, 0, 1) is
  A)
   \[12\text{ }V{{m}^{-1}}\]
  done clear
  B)
   \[-6\text{ }V{{m}^{-1}}\]
  done clear
  C)
   \[6V{{m}^{-1}}\]
  done clear
  D)
   \[-12V{{m}^{-1}}\]
  done clear
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• question_answer57) Youngs double slit experiment gives interference fringes of width 0.3 mm. A thin glass plate made of material of refractive index 1.5 is kept in the path of light from one of the slits, then the fringe width becomes
  A)
   zero             
  done clear
  B)
   0.3 mm
  done clear
  C)
   0.45 mm         
  done clear
  D)
   0.15 mm
  done clear
  View Answer play_arrow

• question_answer58) Near a circular loop of conducting wire as shown in the figure an electron moves along a straight line. The direction of the induced current if any in the loop is
  A)
   variable         
  done clear
  B)
   clockwise
  done clear
  C)
   anticlockwise    
  done clear
  D)
   zero
  done clear
  View Answer play_arrow

• question_answer59) Hydrogen atom from excited state comes to the ground stage by emitting a photon of wavelength\[\lambda \]. If R is the Rydberg constant, the principal quantum number n of the excited state is
  A)
   \[\sqrt{\frac{\lambda R}{\lambda R-1}}\]
  done clear
  B)
   \[\sqrt{\frac{\lambda }{\lambda R-1}}\]
  done clear
  C)
   \[\sqrt{\frac{\lambda {{R}^{2}}}{\lambda R-1}}\]
  done clear
  D)
   \[\sqrt{\frac{\lambda R}{\lambda -1}}\]
  done clear
  View Answer play_arrow

• question_answer60) The magnetic dipole moment of a current loop is independent of
  A)
   magnetic field in which it is lying
  done clear
  B)
   number of turns
  done clear
  C)
   area of the loop
  done clear
  D)
   current in the loop
  done clear
  View Answer play_arrow

• question_answer61) The correct statement with regard to \[H_{2}^{+}\] and \[H_{2}^{-}\]is                                                
  A)
   both \[H_{2}^{+}\] and \[H_{2}^{-}\] are equally stable
  done clear
  B)
   Both \[H_{2}^{+}\] and \[H_{2}^{-}\] do not exist
  done clear
  C)
   \[H_{2}^{-}\] is more stable than \[H_{2}^{+}\]
  done clear
  D)
   \[H_{2}^{+}\] is more stable than \[H_{2}^{-}\]
  done clear
  View Answer play_arrow

• question_answer62) Arrange the following in the increasing order of their bond order \[{{O}_{2}},O_{2}^{+},O_{2}^{-}\]and \[O_{2}^{2-}\]
  A)
   \[O_{2}^{2-},O_{2}^{-},{{O}_{2}},O_{2}^{+}\]
  done clear
  B)
   \[O_{2}^{2-},O_{2}^{-},O_{2}^{+},{{O}_{2}}\]
  done clear
  C)
   \[O_{2}^{+},{{O}_{2}},O_{2}^{-},O_{2}^{2-}\]
  done clear
  D)
   \[{{O}_{2}},O_{2}^{+},O_{2}^{-},O_{2}^{2-}\]
  done clear
  View Answer play_arrow

• question_answer63) 2 g of a radioactive sample having half-life of 15 days was synthesised on 1st Jan 2009. The amount of the sample left behind on 1st March, 2009 (including both the days) is
  A)
   \[0g\]             
  done clear
  B)
   \[0.125g\]
  done clear
  C)
   \[1g\]
  done clear
  D)
   \[0.5g\]
  done clear
  View Answer play_arrow

• question_answer64) For a chemical reaction \[A\to B\], the rate of the reaction is\[2\times {{10}^{-3}}\text{ }mol\text{ }d{{m}^{-3}}\text{ }{{s}^{-1}}\], when the initial concentration is \[0.05\text{ }mol\text{ }d{{m}^{-3}}\]. The rate of the same reaction is \[1.6\times {{10}^{-2}}\text{ }mol\text{ }d{{m}^{-3}}\text{ }{{s}^{-1}}\] when the initial concentration is \[0.1\text{ }mol\text{ }d{{m}^{-3}}\]. The order of the reaction is
  A)
   \[2\]               
  done clear
  B)
   \[0\]
  done clear
  C)
   \[3\]               
  done clear
  D)
   \[1\]
  done clear
  View Answer play_arrow

• question_answer65) For the decomposition of a compound AB at 600 K, the following data were obtained

  \[[AB]\,mol\,\,d{{m}^{-3}}\]	Rate of decomposition of AB in \[mol\,d{{m}^{-3}}\,{{s}^{-1}}\]
  \[0.20\]	\[2.75\times {{10}^{-8}}\]
  \[0.40\]	\[11.0\times {{10}^{-8}}\]
  \[0.60\]	\[24.75\times {{10}^{-8}}\]

  The order for the decomposition of AB is
  A)
   \[1.5\]             
  done clear
  B)
  \[0\]
  done clear
  C)
    \[1\]            
  done clear
  D)
  \[2\]
  done clear
  View Answer play_arrow

• question_answer66) The rate equation for a reaction \[A\to B\] is \[r=k{{[A]}^{0}}\] If the initial concentration of the reactant is a\[mol\text{ }d{{m}^{-3}}\], the half-life period of the reaction is
  A)
   \[\frac{a}{2k}\]              
  done clear
  B)
   \[\frac{k}{a}\]
  done clear
  C)
   \[\frac{a}{k}\]
  done clear
  D)
   \[\frac{2a}{k}\]
  done clear
  View Answer play_arrow

• question_answer67) \[30cc\] of \[\frac{M}{3}HCl,\]\[20cc\]of \[\frac{M}{2}HN{{O}_{3}}\] and \[40cc\] of \[\frac{M}{4}NaOH\] solutions are mixed and the volume was made up to\[1\text{ }d{{m}^{3}}\]. The pH of the resulting solution is
  A)
  \[8\]                 
  done clear
  B)
  \[2\]
  done clear
  C)
  \[1\]                 
  done clear
  D)
  \[3\]
  done clear
  View Answer play_arrow

• question_answer68) An aqueous solution containing \[6.5g\]of \[NaCl\] of 90% purity was subjected to electrolysis. After the complete electrolysis, the solution was evaporated to get solid \[NaOH\]. The volume of 1 M acetic acid required to neutralise \[NaOH\] obtained above is
  A)
   \[1000c{{m}^{3}}\]  
  done clear
  B)
   \[2000c{{m}^{3}}\]
  done clear
  C)
   \[100c{{m}^{3~}}\]      
  done clear
  D)
   \[200c{{m}^{3}}\]
  done clear
  View Answer play_arrow

• question_answer69) The standard electrode potential for the half-cell reactions are \[Z{{n}^{2+}}+2{{e}^{-}}\xrightarrow{{}}Zn;{{E}^{o}}=-0.76V\] \[F{{e}^{2+}}+2{{e}^{-}}\xrightarrow{{}}Fe;{{E}^{o}}=-0.44V\] The emf of the cell reaction, \[F{{e}^{2+}}+Zn\xrightarrow{{}}Z{{n}^{2+}}+Fe\] is
  A)
    \[-0.32V\]
  done clear
  B)
   \[-1.20V\]
  done clear
  C)
   \[+1.20V\]
  done clear
  D)
   \[+0.32V\]
  done clear
  View Answer play_arrow

• question_answer70) \[{{10}^{-6}}M\text{ }NaOH\]is diluted 100 times. The pH of the diluted base is
  A)
   Between 7 and 8
  done clear
  B)
   Between 5 and 6                        
  done clear
  C)
   Between 6 and 7
  done clear
  D)
   Between 10 and 11
  done clear
  View Answer play_arrow

• question_answer71) In the electrolysis of acidulated water, it is desired to obtain \[1.12cc\]of hydrogen per second under STP condition. The current to be passed is
  A)
   \[1.93A\]
  done clear
  B)
   \[9.65A\]
  done clear
  C)
   \[19.3A\]
  done clear
  D)
   \[0.965A\]
  done clear
  View Answer play_arrow

• question_answer72) The one which decreases with dilution is
  A)
   Molar conductance
  done clear
  B)
   Conductance
  done clear
  C)
   Specific conductance
  done clear
  D)
   Equivalent conductance
  done clear
  View Answer play_arrow

• question_answer73) Vapour pressure of pure A is 70 mm of \[Hg\] at \[{{25}^{o}}C\]. It forms an ideal solution with B in which mole fraction of A is \[0.8\]. If the vapour pressure of the solution is \[84mm\]of \[Hg\] at \[{{25}^{o}}C\], the vapour pressure of pure B at \[{{25}^{o}}C\] is
  A)
  \[28mm\]
  done clear
  B)
  \[56mm\]
  done clear
  C)
  \[70mm\]          
  done clear
  D)
  \[140mm\]
  done clear
  View Answer play_arrow

• question_answer74) A 6% solution of urea is isotonic with
  A)
   1 M solution of glucose
  done clear
  B)
   0.05 M solution of glucose
  done clear
  C)
   6% solution of glucose
  done clear
  D)
   25% solution of glucose
  done clear
  View Answer play_arrow

• question_answer75) In countries nearer to polar region, the roads are sprinkled with  \[CaC{{l}_{2}}\]. This is
  A)
   To minimise the wear and tear of the roads
  done clear
  B)
   To minimise the snow fall
  done clear
  C)
   To minimise pollution
  done clear
  D)
   To minimise the accumulation of dust on the road
  done clear
  View Answer play_arrow

• question_answer76) For the reaction \[{{H}_{2}}O(l){{H}_{2}}O(g)\]at \[373K\]and 1 atm pressure
  A)
   \[\Delta H=0\]         
  done clear
  B)
   \[\Delta E=0\]
  done clear
  C)
   \[\Delta H=T\Delta S\]
  done clear
  D)
   \[\Delta H=\Delta E\]
  done clear
  View Answer play_arrow

• question_answer77) A compound of A and B crystallises in a cubic lattice in which A atoms occupy the lattice points at the corners of the cube. The B atoms occupy the centre of each face of the cube. The probable empirical formula of the compound is
  A)
    \[A{{B}_{2}}\]           
  done clear
  B)
   \[{{A}_{3}}B\]
  done clear
  C)
   \[AB\]             
  done clear
  D)
   \[A{{B}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer78) In electrophilic aromatic substitution reaction, the nitro group is meta directing because it
  A)
   Decreases electron density at ortho and para positions
  done clear
  B)
   Decreases electron density at meta position
  done clear
  C)
   Increases electron density at meta position
  done clear
  D)
   Increases electron density at ortho and para positions
  done clear
  View Answer play_arrow

• question_answer79) \[C{{H}_{3}}COOH\xrightarrow{LiAl{{H}_{4}}}X\xrightarrow[{{300}^{o}}C]{Cu}Y\xrightarrow[NaOH]{Diltue}Z\] In the above reaction Z is
  A)
   butanol          
  done clear
  B)
   aldol
  done clear
  C)
   ketol             
  done clear
  D)
   acetal
  done clear
  View Answer play_arrow

• question_answer80) The best method for the conversion of an alcohol into an alkyi chloride is by treating the alcohol with
  A)
   \[PC{{l}_{3}}\]
  done clear
  B)
   \[PC{{l}_{5}}\]
  done clear
  C)
   \[SoC{{l}_{2}}\] in presence of pyridine
  done clear
  D)
   dry \[HCl\] in the presence of anhydrous \[ZnC{{l}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer81) The electrophile involved in the sulphonation of benzene is
  A)
                                                                                                       \[SO_{3}^{+}\]            
  done clear
  B)
                                                                                                       \[SO_{3}^{2-}\]
  done clear
  C)
                                                                                                       \[H_{3}^{+}O\]           
  done clear
  D)
                                                                                                                                                                                                              \[S{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer82) The carbon-carbon bond length in benzene is
  A)
   In between                                                                                                \[{{C}_{2}}{{H}_{6}}\]  and                                                                                                \[{{C}_{2}}{{H}_{4}}\]
  done clear
  B)
   Same as in                                                                                                \[{{C}_{2}}{{H}_{4}}\]
  done clear
  C)
   In between C^H^ and                                                                                                \[{{C}_{2}}{{H}_{4}}\]
  done clear
  D)
   In between                                                                                                \[{{C}_{2}}{{H}_{4}}\]  and C
  done clear
  View Answer play_arrow

• question_answer83) The compound which is not formed during the dry distillation of a mixture of calcium formate and calcium acetate is
  A)
   Methanal       
  done clear
  B)
   Propanal
  done clear
  C)
   Propanone      
  done clear
  D)
   Ethanal
  done clear
  View Answer play_arrow

• question_answer84) An organic compound X is oxidised by using Acidified \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]The product obtained reacts with phenyl hydrazine but does not answer silver mirror test. The possible structure of X is
  A)
                                                                                             \[C{{H}_{3}}C{{H}_{2}}OH\]  
  done clear
  B)
                                     \[C{{H}_{3}}-\underset{O}{\mathop{\underset{||}{\mathop{C}}\,}}\,-C{{H}_{3}}\]
  done clear
  C)
                                                                                           \[{{(C{{H}_{3}})}_{2}}CHOH\]  
  done clear
  D)
                                                                                                      \[C{{H}_{3}}CHO\]
  done clear
  View Answer play_arrow

• question_answer85) The reaction involved in the oil of winter green test is salicylic acid                                                                \[\xrightarrow[Conc.\,{{H}_{2}}S{{O}_{4}}]{\Delta }\] product. The product is treated with                                                                                             \[N{{a}_{2}}C{{O}_{3}}\] solution. The missing reagent in the above reaction is
  A)
   Phenol          
  done clear
  B)
   \[NaOH\]
  done clear
  C)
   Ethanol         
  done clear
  D)
   methanol
  done clear
  View Answer play_arrow

• question_answer86) The compound which forms acetaldehyde when heated with dilute \[NaOH\], is
  A)
   1, 1-dichloroethane
  done clear
  B)
   1, 1, 1-trichloroethane
  done clear
  C)
   1-chloroethane
  done clear
  D)
   1, 2-dichloroethane
  done clear
  View Answer play_arrow

• question_answer87) Arrange the following in the increasing order of their   basic   strengths                                                                                             \[C{{H}_{3}}N{{H}_{2}}\] ,                                                                                           \[{{(C{{H}_{3}})}_{2}}NH\] ,                                                                                 \[{{(C{{H}_{3}})}_{3}}N,N{{H}_{3}}\]
  A)
                                     \[N{{H}_{3}}<{{(C{{H}_{3}})}_{3}}N<{{(C{{H}_{3}})}_{2}}NH<C{{H}_{3}}N{{H}_{2}}\]
  done clear
  B)
                                     \[N{{H}_{3}}<{{(C{{H}_{3}})}_{3}}N<C{{H}_{3}}N{{H}_{2}}<{{(C{{H}_{3}})}_{2}}NH\]
  done clear
  C)
                          \[{{(C{{H}_{3}})}_{3}}N<N{{H}_{3}}<C{{H}_{3}}<C{{H}_{3}}N{{H}_{2}}<{{(C{{H}_{3}})}_{2}}NH\]
  done clear
  D)
                                     \[C{{H}_{3}}N{{H}_{2}}<{{(C{{H}_{3}})}_{2}}NH<{{(C{{H}_{3}})}_{3}}N<N{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer88) The one which has least iodine value is
  A)
   Sunflower oil    
  done clear
  B)
   Ginger oil
  done clear
  C)
   Ghee            
  done clear
  D)
   Groundnut oil
  done clear
  View Answer play_arrow

• question_answer89) A diabetic person carries a packet of glucose with him always, because
  A)
   Glucose reduces the blood sugar level slowly
  done clear
  B)
   Glucose increases the blood sugar level slowly
  done clear
  C)
   Glucose reduces the blood sugar level
  done clear
  D)
   Glucose increases the blood sugar level almost instantaneously
  done clear
  View Answer play_arrow

• question_answer90) There are 20 naturally occurring amino acids. The maximum number of tripe tides that can be obtained is
  A)
   \[8000\]
  done clear
  B)
   \[6470\]
  done clear
  C)
   \[7465\]          
  done clear
  D)
   \[5360\]
  done clear
  View Answer play_arrow

• question_answer91) Cooking is fast in a pressure cooker, because
  A)
   Food particles are effectively smashed
  done clear
  B)
   Water boils at higher temperature inside the pressure cooker
  done clear
  C)
    Food is cooked at constant volume
  done clear
  D)
   Loss of heat due to radiation is minimum
  done clear
  View Answer play_arrow

• question_answer92) The ore that is concentrated by froth floatation process is
  A)
   Zincite           
  done clear
  B)
   cinnabar
  done clear
  C)
   Bauxite          
  done clear
  D)
   malachite
  done clear
  View Answer play_arrow

• question_answer93) The correct set of four quantum numbers for outermost electron of potassium \[(Z=19)\] is
  A)
   \[4,1,0,\frac{1}{2}\]
  done clear
  B)
   \[3,1,0,\frac{1}{2}\]
  done clear
  C)
   \[4,0,0,\frac{1}{2}\]
  done clear
  D)
   \[3,0,0,\frac{1}{2}\]
  done clear
  View Answer play_arrow

• question_answer94) A body of mass x kg is moving with a velocity of \[100\text{ }m{{s}^{-1}}\]. Its de-Broglie wavelength is\[6.62\times {{10}^{-35}}m\]. Hence, x is \[(h=6.62\times {{10}^{-34}}Js)\]
  A)
   \[0.1kg\]             
  done clear
  B)
   \[0.25kg\]
  done clear
  C)
   \[0.15kg\]         
  done clear
  D)
   \[0.2kg\]
  done clear
  View Answer play_arrow

• question_answer95) The correct order of ionisation energy of C, N, O, F is
  A)
   \[F<O<N<C~\]
  done clear
  B)
   \[F<N<C<O\]
  done clear
  C)
   \[C<N<O<F\]
  done clear
  D)
   \[C<O<N<F\]
  done clear
  View Answer play_arrow

• question_answer96) The oxide of an element whose electronic configuration is \[1{{s}^{2}},2{{s}^{2}},2{{p}^{6}},3{{s}^{1}}\]is
  A)
   neutral          
  done clear
  B)
   Amphoteric
  done clear
  C)
   basic            
  done clear
  D)
   Acidic
  done clear
  View Answer play_arrow

• question_answer97) The characteristic not related to alkali metal is
  A)
   High ionisation energy
  done clear
  B)
   Their ions are isoelectronic with noble gases
  done clear
  C)
   Low melting point
  done clear
  D)
   Low electronegativity
  done clear
  View Answer play_arrow

• question_answer98) Among the following, the compound that contains ionic, covalent and coordinate linkage is
  A)
  \[N{{H}_{3}}\]           
  done clear
  B)
  \[N{{H}_{4}}Cl\]
  done clear
  C)
  \[NaCl\]          
  done clear
  D)
  \[CaO\]
  done clear
  View Answer play_arrow

• question_answer99) A covalent molecule \[A{{B}_{3}}\] has pyramidal structure. The number of lone pair and bond pair of electron  in the molecule are respectively
  A)
  \[2\] and \[2\]        
  done clear
  B)
  \[0\] and \[4\]
  done clear
  C)
  \[3\] and \[1\]         
  done clear
  D)
  \[1\] and \[3\]
  done clear
  View Answer play_arrow

• question_answer100) Excess of carbon dioxide is passed through \[50mL\]of \[0.5M\]calcium hydroxide solution. After the completion of the reaction, the solution was evaporated to dryness. The solid calcium carbonate was completely neutralised with 0.1 N hydrochloric acid. The volume of hydrochloric acid required is (Atomic mass of calcium = 40)
  A)
  \[300c{{m}^{3}}\]        
  done clear
  B)
  \[200c{{m}^{3}}\]
  done clear
  C)
  \[500c{{m}^{3}}\]
  done clear
  D)
  \[400c{{m}^{3}}\]
  done clear
  View Answer play_arrow

• question_answer101) A bivalent metal has an equivalent mass of 32. The molecular mass of the metal nitrate is
  A)
  \[182\]             
  done clear
  B)
  \[168\]
  done clear
  C)
  \[192\]             
  done clear
  D)
  \[188\]
  done clear
  View Answer play_arrow

• question_answer102) The rms velocity of molecules of a gas of density \[4kg\,{{m}^{-3}}\]and pressure \[1.2\times {{10}^{5}}\,N{{m}^{-2}}\]is
  A)
   \[300m{{s}^{-1}}\]
  done clear
  B)
   \[900m{{s}^{-1}}\]
  done clear
  C)
   \[120m{{s}^{-1}}\]
  done clear
  D)
   \[600m{{s}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer103) \[0.5mole\]of each of \[{{H}_{2}},S{{O}_{2}}\]and  are kept in a container. A hole was made in the container. After 3 h, the order of partial pressures in the container will be
  A)
   \[pS{{O}_{2}}>p{{H}_{2}}>pC{{H}_{4}}\]
  done clear
  B)
   \[pS{{O}_{2}}>pC{{H}_{4}}>p{{H}_{2}}\]
  done clear
  C)
   \[p{{H}_{2}}>pS{{O}_{2}}>pC{{H}_{4}}\]
  done clear
  D)
   \[p{{H}_{2}}>pC{{H}_{4}}>pS{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer104)  The enthalpy of formation of \[N{{H}_{3}}\] is. The enthalpy change for the \[-46kJ\,mo{{l}^{-1}}\] reaction         \[2N{{H}_{3}}(g)\xrightarrow{{}}{{N}_{2}}(g)+3{{H}_{2}}(g)\] is                       
  A)
  \[+184kJ\]       
  done clear
  B)
  \[+23\text{ }kJ\]
  done clear
  C)
  \[+92kJ\]        
  done clear
  D)
  \[+46kJ\]
  done clear
  View Answer play_arrow

• question_answer105) \[5moles\]of \[S{{O}_{2}}\] and 5 moles of \[{{O}_{2}}\] are allowed to react. At equilibrium, it was found that 60% of \[S{{O}_{2}}\] is used up. If the partial pressure of the equilibrium mixture is one atmosphere, the partial pressure of \[{{O}_{2}}\] is
  A)
  \[0.82atm\]
  done clear
  B)
  \[0.52atm\]
  done clear
  C)
  \[0.21atm\]
  done clear
  D)
  \[0.41atm\]
  done clear
  View Answer play_arrow

• question_answer106) \[2HI(g){{H}_{2}}(g)+{{I}_{2}}(g)\] The equilibrium constant of the above reaction is \[6.4\]at\[300K\]. If \[0.25\] mole each of \[{{H}_{2}}\] and \[12\]are added to the system, the equilibrium constant will be
  A)
  \[6.4\]                
  done clear
  B)
  \[0.8\]
  done clear
  C)
  \[3.2\]               
  done clear
  D)
  \[1.6\]
  done clear
  View Answer play_arrow

• question_answer107) Rate of physical adsorption increases with
  A)
   Decrease in surface area
  done clear
  B)
   Decrease in temperature
  done clear
  C)
   Decrease in pressure
  done clear
  D)
   Increase in temperature
  done clear
  View Answer play_arrow

• question_answer108) IUPAC name of   \[{{(C{{H}_{3}})}_{3}}CCl\]is
  A)
   n-butyl chloride
  done clear
  B)
   3-chloro butane
  done clear
  C)
   2-chloro 2-methyl propane
  done clear
  D)
   Mxityl chloride
  done clear
  View Answer play_arrow

• question_answer109) Lucas test is associated with
  A)
   Aldehydes       
  done clear
  B)
   Phenols
  done clear
  C)
   Carboxylic acids  
  done clear
  D)
   Alcohols
  done clear
  View Answer play_arrow

• question_answer110) An organic compound on heating with \[CuO\] produces \[C{{O}_{2}}\] but no water. The organic compound may be
  A)
   Carbon tetrachloride
  done clear
  B)
   Chloroform
  done clear
  C)
   Methane
  done clear
  D)
   Ethyl iodide
  done clear
  View Answer play_arrow

• question_answer111) The condensation polymer among the following is
  A)
   Rubber          
  done clear
  B)
   Protein
  done clear
  C)
   PVC             
  done clear
  D)
   Polyethene
  done clear
  View Answer play_arrow

• question_answer112) The order of stability of metal oxides is
  A)
   \[A{{l}_{2}}{{O}_{3}}<MgO<F{{e}_{2}}{{O}_{3}}<C{{r}_{2}}{{O}_{3}}\]
  done clear
  B)
   \[C{{r}_{2}}{{O}_{3}}<MgO<A{{l}_{2}}{{O}_{3}}<F{{e}_{2}}{{O}_{3}}\]
  done clear
  C)
   \[F{{e}_{2}}{{O}_{3}}<C{{r}_{2}}{{O}_{3}}<A{{l}_{2}}{{O}_{3}}<MgO\]
  done clear
  D)
   \[F{{e}_{2}}{{O}_{3}}<A{{l}_{2}}{{O}_{3}}<C{{r}_{2}}{{O}_{3}}<MgO\]
  done clear
  View Answer play_arrow

• question_answer113) The temperature of the slag zone in the metallurgy of iron using blast furnace is
  A)
   \[1200-{{1500}^{o}}C\]    
  done clear
  B)
   \[1500-{{1600}^{o}}C\]
  done clear
  C)
   \[400-{{700}^{o}}C\]
  done clear
  D)
   \[800-{{1000}^{o}}C\]
  done clear
  View Answer play_arrow

• question_answer114) The function of \[Fe{{(OH)}_{3}}\] in the contact process is
  A)
   to remove arsenic impurity
  done clear
  B)
   to detect colloidal impurity
  done clear
  C)
   to remove moisture
  done clear
  D)
   to remove dust particles
  done clear
  View Answer play_arrow

• question_answer115) In which of the following, NH3 is not used?
  A)
   Toilers reagent
  done clear
  B)
   Nesslers reagent
  done clear
  C)
   Group reagent for the analysis of IV group basic radicals
  done clear
  D)
   Group reagent for the analysis of III group basic radicals
  done clear
  View Answer play_arrow

• question_answer116) Argon is used
  A)
   In filling airships
  done clear
  B)
   To obtain low temperature
  done clear
  C)
   In high temperature welding
  done clear
  D)
   In radiotherapy for treatment of cancer
  done clear
  View Answer play_arrow

• question_answer117) The incorrect statement in respect of chromyl chloride test is
  A)
   Formation of red vapours
  done clear
  B)
   Formation of lead chromate
  done clear
  C)
   Formation of chromyl chloride
  done clear
  D)
   Liberation of chlorine
  done clear
  View Answer play_arrow

• question_answer118) The magnetic moment of a transition metal ion is \[\sqrt{15}\text{ }BM\]. Therefore, the number of unpaired electrons present in it, is
  A)
   \[3\]              
  done clear
  B)
   \[4\]
  done clear
  C)
   \[1\]               
  done clear
  D)
   \[2\]
  done clear
  View Answer play_arrow

• question_answer119) The IUPAC name of \[{{[Co{{(N{{H}_{3}})}_{5}}ONO]}^{2+}}\]ion is
  A)
   penta ammine nitrito cobalt (IV) ion
  done clear
  B)
   penta ammine nitrito cobalt (III) ion
  done clear
  C)
   penta ammine nitro cobalt (III) ion
  done clear
  D)
   penta ammine nitro cobalt (IV) ion
  done clear
  View Answer play_arrow

• question_answer120) The oxidation state of Fe in the brown ring/ complex:  \[[Fe{{({{H}_{2}}O)}_{5}}NO]S{{O}_{4}}\]is
  A)
   \[+3\]             
  done clear
  B)
   \[0\]
  done clear
  C)
   \[+2\]             
  done clear
  D)
  \[+1\]           
  done clear
  View Answer play_arrow

• question_answer121) The respiratory quotient during cellular respiration would depend on
  A)
   the nature of enzymes involved
  done clear
  B)
   the nature of the substrate
  done clear
  C)
   the amount of carbon dioxide released
  done clear
  D)
   the amount of oxygen utilized
  done clear
  View Answer play_arrow

• question_answer122) Which of the following is not a green-house gas?
  A)
   Water vapour
  done clear
  B)
   Carbon monoxide
  done clear
  C)
   Methane
  done clear
  D)
   Oxygen
  done clear
  View Answer play_arrow

• question_answer123) Both husband and wife have normal vision though their fathers were colorblind and mothers did not have any gene for colorblindness. The probability of their daughters becoming colorblind is
  A)
   50%
  done clear
  B)
   75%
  done clear
  C)
   0%
  done clear
  D)
   25%
  done clear
  View Answer play_arrow

• question_answer124) An animal, which has both exoskeletal and endoskeletal structures is a
  A)
   fresh-water mussel
  done clear
  B)
   tortoise
  done clear
  C)
   frog
  done clear
  D)
   jelly fish
  done clear
  View Answer play_arrow

• question_answer125)  2n = 16 in a primary spermatocyte, which is in metaphase of first meiotic division. What shall be the total number of chromatids in each of the secondary spermatocyte?
  A)
   32
  done clear
  B)
   8
  done clear
  C)
   16
  done clear
  D)
   24
  done clear
  View Answer play_arrow

• question_answer126) Identify the group, which includes animals all of which give birth to young ones directly?
  A)
   Dolphin, kangaroo, bat, cat
  done clear
  B)
   Platypus, penguin, bat, hippopotamus
  done clear
  C)
   Shrew, bat, kiwi, cat
  done clear
  D)
   Lion, whale, ostrich, bat
  done clear
  View Answer play_arrow

• question_answer127) Compare the statements A and B.

  Statement A Blood sugar level falls rapidly after hepatectomy.

  Statement B The glycogen of the liver is the principal source of blood sugar.

  Select the correct description.
  A)
   Both the statements A and B are correct and B is the reason for A
  done clear
  B)
   Statement A is correct and B is wrong
  done clear
  C)
   Statement A is wrong and B is correct
  done clear
  D)
   Both the statements A and B are correct and B is not the reason for A
  done clear
  View Answer play_arrow

• question_answer128) What is/are true about heart wood?

  [A] It does not help in water conduction.

  [B] It is also called alburnum.

  [C] It is dark in colour but very soft.

  [D] It has tracheary elements which are filled with tannin, resin, etc.

  A)
   B, C and D
  done clear
  B)
   A and D
  done clear
  C)
   B and D
  done clear
  D)
   A, B and C
  done clear
  View Answer play_arrow

• question_answer129) Compare the statements A and B.

  Statement A Auxins promote apical dominance by suppressing the activity of lateral buds.

  Statement B In moriculture, periodic pruning of shoot tips is done to make mulberry plants bushy.

  Select the correct description.
  A)
   Both the statements A and B are correct and A is the reason for B
  done clear
  B)
   Statement A is correct and B is wrong
  done clear
  C)
   Statement A is wrong and B is correct
  done clear
  D)
   Both the statements A and B are correct and A is not the reason for B
  done clear
  View Answer play_arrow

• question_answer130) Bryophytes resemble algae in the following aspects
  A)
   Filamentous body, presence of vascular tissues and autotrophic nutrition
  done clear
  B)
   Differentiation of plant body into root, stem and leaves and aurotrophic nutrition
  done clear
  C)
   Thallus like plant body, presence of roots and autotrophic nutrition
  done clear
  D)
   Thallus like plant body, lack of vascular tissues and autotrophic nutrition
  done clear
  View Answer play_arrow

• question_answer131) Compare the statements A and B.

  Statement A A monocistronic mRNA can produce several types of polypeptide chains.

  Statement B The terminator codon is present on the mRNA.

  Select the correct description.
  A)
   Both the statements A and B are wrong
  done clear
  B)
   Statement A is correct and B is wrong
  done clear
  C)
   Statement A is wrong and B is correct
  done clear
  D)
   Both the statements A and B are correct
  done clear
  View Answer play_arrow

• question_answer132) Stoma opens, when
  A)
   guard cells swell due to an increase in their water potential
  done clear
  B)
   guard cells swell by endosmosis due to influx of hydrogen ions (protons)
  done clear
  C)
   guard cells swell by endosmosis due to efflux of potassium ions
  done clear
  D)
   guard cells swell due to a decrease in their water potential
  done clear
  View Answer play_arrow

• question_answer133) Which of the following is properly matched?
  A)
   Platyhelminthes - Trematoda - Planaria
  done clear
  B)
   Echinodermata - Asteroidea - Star fish
  done clear
  C)
   Arthropoda - Insecta - Spider
  done clear
  D)
   Mollusca - Cephalopoda - Unio
  done clear
  View Answer play_arrow

• question_answer134) A man is admitted to a hospital. He is suffering from an abnormally low body temperature, loss of appetite and extreme thirst. His brain scan would probably show a tumour in
  A)
   medulla oblongata
  done clear
  B)
   pons
  done clear
  C)
   cerebellum
  done clear
  D)
   hypothalamus
  done clear
  View Answer play_arrow

• question_answer135) Identify the incorrect statement with respect to Calvin cycle
  A)
   The carboxylation of RuBP is catalysed by rubisco
  done clear
  B)
   The first stable intermediate compound formed is phosphoglycerate
  done clear
  C)
   18 molecules of ATP are synthesized during carbon fixation
  done clear
  D)
   NADPH + H+ produced in light reaction is used to reduce diphosphoglycerate
  done clear
  View Answer play_arrow

• question_answer136) The agents, which are known to cause CJD are
  A)
   protein particles
  done clear
  B)
   a class of bacteria
  done clear
  C)
   a class of viruses
  done clear
  D)
   fungi
  done clear
  View Answer play_arrow

• question_answer137) In crop improvement programmes, virus-free clones can be obtained through
  A)
   grafting
  done clear
  B)
   hybridization
  done clear
  C)
   embryo culture
  done clear
  D)
   shoot apex culture
  done clear
  View Answer play_arrow

• question_answer138) A person is suffering from frequent episodes of nasal discharge, nasal congestion, reddening of eyes and watery eyes. These are the symptoms of
  A)
   cyanosis
  done clear
  B)
   bronchitis
  done clear
  C)
   rhinitis
  done clear
  D)
   bronchial carcinoma
  done clear
  View Answer play_arrow

• question_answer139) Some important events in the human female reproductive cycle are given below. Arrange the events in a proper sequence.

  A : Secretion of FSH

  B : Growth of corpus luteum

  C : Growth of the follicle and oogenesis

  D: Ovulation

  E : Sudden increase in the levels of LH

  A)
   C \[\to \]A \[\to \]D \[\to \]B \[\to \]E
  done clear
  B)
   A \[\to \]C \[\to \]E \[\to \]D \[\to \]B
  done clear
  C)
   A \[\to \]D \[\to \]C \[\to \]E \[\to \]B
  done clear
  D)
   B \[\to \]A \[\to \]C \[\to \]D \[\to \]E
  done clear
  View Answer play_arrow

• question_answer140) Compare the statements A and B.

  Statement A Ranikhet disease is the disease of poultry.

  Statement B It is caused by a virus.

  Select the correct description.
  A)
   Both the statements A and B are correct
  done clear
  B)
   Statement A is correct and B is wrong
  done clear
  C)
   Statement A is wrong and B is correct
  done clear
  D)
   Both the statements A and B are wrong
  done clear
  View Answer play_arrow

• question_answer141) The offspring produced from a marriage have only 0 or A blood groups. Of the genotypes given below, the possible genotypes of the parents would be
  A)
   \[{{|}^{A}}{{|}^{A}}\]and \[{{|}^{A}}{{|}^{O}}\]
  done clear
  B)
   \[{{|}^{O}}{{|}^{O}}\]and \[{{|}^{O}}{{|}^{O}}\]
  done clear
  C)
   \[{{|}^{A}}{{|}^{A}}\]and \[{{|}^{O}}{{|}^{O}}\]
  done clear
  D)
   \[{{|}^{A}}{{|}^{O}}\]and \[{{|}^{O}}{{|}^{O}}\]
  done clear
  View Answer play_arrow

• question_answer142)   A dorsal horn is present on the ......... of mulberry silk worm (caterpillar).
  A)
   head
  done clear
  B)
   8thabdominal segment
  done clear
  C)
   5th abdominal segment
  done clear
  D)
   2nd thoracic segment
  done clear
  View Answer play_arrow

• question_answer143) A plant has an androecium with monadelphous stamens, monothecous and reniform anthers. The corolla exhibits contorted aestivation. The plant could be
  A)
   Rauwolfia
  done clear
  B)
   Vinca
  done clear
  C)
   Nerium
  done clear
  D)
   Hibiscus
  done clear
  View Answer play_arrow

• question_answer144) Transpiration facilitates
  A)
   electrolyte balance
  done clear
  B)
   opening of stomata
  done clear
  C)
   absorption of water by roots
  done clear
  D)
   excretion of minerals
  done clear
  View Answer play_arrow

• question_answer145) The cross-section of the body of an invertebrate is given below. Identify the animal, which has this body plan.
  A)
   Cockroach
  done clear
  B)
   Roundworm
  done clear
  C)
   Planaria
  done clear
  D)
   Earthworm
  done clear
  View Answer play_arrow

• question_answer146) In an experiment demonstrating the evolution of oxygen in Hydrilla, sodium bicarbonate is added to water in the experimental set-up. What would happen if all other conditions are favourable?
  A)
   Amount of oxygen evolved decreases as carbon dioxide in water is absorbed by sodium bicarbonate
  done clear
  B)
   Amount of oxygen evolved increases as the availability of carbon dioxide increases
  done clear
  C)
   Amount of oxygen evolved decreases as the availability of carbon dioxide increases
  done clear
  D)
   Amount of oxygen evolved increases as carbon dioxide in water is absorbed by sodium bicarbonate
  done clear
  View Answer play_arrow

• question_answer147) Which substance is in higher concentration in blood than in glomerular filtrate?
  A)
   Water
  done clear
  B)
   Glucose
  done clear
  C)
   Urea
  done clear
  D)
   Plasma proteins
  done clear
  View Answer play_arrow

• question_answer148) All the following are included under in situ conservation except
  A)
   botanical garden
  done clear
  B)
   biosphere reserve
  done clear
  C)
   national park
  done clear
  D)
   sanctuary
  done clear
  View Answer play_arrow

• question_answer149) Match the compounds given in Column I with the number of carbon atoms present in them which are listed under Column II. Choose the answer which gives the correct combination of alphabets of the two columns.

  	Column I		Column II
  A.	Oxaloacetate	p.	6 - C compound
  B.	Phosphoglycer-aldehyde	q.	5 - C compound
  C.	Isocitrate	r.	4 - C compound
  D.	\[\alpha \]- ketoglutarate	s.	3 - C compound
  		t.	2 - C compound

  A)
   A- s     B- t     C- q     D-r
  done clear
  B)
   A-r      B-s      C-p      D-q
  done clear
  C)
    A-r      B-t      C-p      D-q
  done clear
  D)
    A-q      B-s      C-p      D-t
  done clear
  View Answer play_arrow

• question_answer150) Identify the correctly matched pair/pairs of the germ layers and their derivatives.

  [A] Ectoderm - Epidermis

  [B] Endoderm - Dennis

  [C] Mesoderm - Muscles

  [D] Mesoderm - Notochord

  [E] Endoderm - Enamel of teeth

  A)
   A, C and D only
  done clear
  B)
   A, B, C and E only
  done clear
  C)
   A and D only
  done clear
  D)
   A and B only
  done clear
  View Answer play_arrow

• question_answer151) Identify the correct statement.
  A)
   Because of marked climatic variations, plants growing near the sea shore do not produce annual rings.
  done clear
  B)
   The age of the plant can be determined by its height.
  done clear
  C)
   Healing of damaged tissue is because of the activity of sclerenchyma cells.
  done clear
  D)
   Grafting is difficult in monocot plants as they have scattered vascular bundles.
  done clear
  View Answer play_arrow

• question_answer152) Blood stains are found at the site of a murder. If DNA profiling technique is to be used for identifying the criminal, which of the following is ideal for use?
  A)
   Serum
  done clear
  B)
   Erythrocytes
  done clear
  C)
   Leucocytes
  done clear
  D)
   Platelets
  done clear
  View Answer play_arrow

• question_answer153) During endocytosis.
  A)
   the cell divides its cytoplasm during mitosis
  done clear
  B)
   the cell digests itself
  done clear
  C)
   the cell engulfs and internalises materials using its membrane
  done clear
  D)
   the cell enables the extracellular digestion of large molecules
  done clear
  View Answer play_arrow

• question_answer154) Match the names of the economically important plants (or their products) listed in with the families to which they belong given in Column II. Choose the answer which gives the correct combination of alphabets of the two columns.

  	Column I		Column II
  A.	Sunflower	p.	Acanthaceae
  B.	Tulsi	q.	Compositae
  C.	Coffee	r.	Labiatae
  D.	Vasaka	s.	Rubiaceae
  		t.	Euphorbiaceae

  A)
   A- r    B- t      C-s      D-q
  done clear
  B)
   A-q     B-r      C-s      D-p
  done clear
  C)
   A-q    B- s      C-p     D-t
  done clear
  D)
   A-s    B- r      C-p      D-q
  done clear
  View Answer play_arrow

• question_answer155) Which of the following hormones does not naturally occur in plants?
  A)
   2, 4-D
  done clear
  B)
   IAA
  done clear
  C)
   GA
  done clear
  D)
   ABA
  done clear
  View Answer play_arrow

• question_answer156) A large quantity of fluid is filtered every day by the nephrons in the kidneys. Only about 1% of it is excreted as urine. The remaining 99% of the filtrate
  A)
   gets collected in the renal pelvis
  done clear
  B)
   is lost as sweat
  done clear
  C)
   is stored in the urinary bladder
  done clear
  D)
   is reabsorbed into the blood
  done clear
  View Answer play_arrow

• question_answer157) When DNA replication starts
  A)
   The leading strand produces Okazaki fragments
  done clear
  B)
   the   hydrogen   bonds   between   the nucleotides of two strands break
  done clear
  C)
   the phosphodiester bonds between the adjacent nucleotides break
  done clear
  D)
   the bonds between the nitrogen base and deoxyribose sugar break
  done clear
  View Answer play_arrow

• question_answer158) Fleshy fruits with stony endocarp are called
  A)
   capsules
  done clear
  B)
   berries
  done clear
  C)
   pomes
  done clear
  D)
   drupes
  done clear
  View Answer play_arrow

• question_answer159) Which statement about photosynthesis is false?
  A)
   The   electron   carriers   involved   in photophosphorylation are located on the thylakoid membranes.
  done clear
  B)
   Photosynthesis is a redox process, in which water is oxidised and carbon dioxide is reduced.
  done clear
  C)
   The enzymes required for carbon fixation are located only in the grana of chloroplasts.
  done clear
  D)
   In green plants, both PS-I and PS-II are required for the formation of\[NADPH\text{ }+\text{ }{{H}^{+}}\].
  done clear
  View Answer play_arrow

• question_answer160) Darwinism explains all the following except
  A)
   within each species, there are variations
  done clear
  B)
   organisms tend to produce more number of offspring that can survive
  done clear
  C)
   offspring with better traits that overcome competition are best suited for the environment
  done clear
  D)
   variations are inherited from parents to offspring through genes
  done clear
  View Answer play_arrow

• question_answer161) Pollen grains of a plant whose 2n = 28 are cultured to get callus by tissue culture method. What would be the number of chromosomes in the cells of the callus?
  A)
   28
  done clear
  B)
   21
  done clear
  C)
   14
  done clear
  D)
   56
  done clear
  View Answer play_arrow

• question_answer162) A true breeding plant producing red flowers is crossed with a pure plant producing white flowers. Allele for red colour of flower is dominant. After selfing the plants of first filial generation, the proportion of plants producing white flowers in the progeny would be
  A)
   \[\frac{3}{4}\]
  done clear
  B)
   \[\frac{1}{4}\]
  done clear
  C)
   \[\frac{1}{3}\]
  done clear
  D)
   \[\frac{1}{2}\]
  done clear
  View Answer play_arrow

• question_answer163) Which of the following prevents the conversion of prothrombin to thrombin in an undamaged blood vessel?
  A)
   Heparin
  done clear
  B)
   Calcium ions
  done clear
  C)
   Thromboplastin
  done clear
  D)
   Fibrinogen
  done clear
  View Answer play_arrow

• question_answer164) The characteristic that is shared by urea, uric acid and ammonia is/are [A] They are nitrogenous wastes. [B] They all need very large amount of water for excretion. [C] They are all equally toxic. [D] They are produced in the kidneys.
  A)
   A and C
  done clear
  B)
   A and D
  done clear
  C)
   A, C and D
  done clear
  D)
   A only
  done clear
  View Answer play_arrow

• question_answer165) RBC and a plant cell (with thick cell wall) are placed in distilled water. The solute concentration is the same in both the cells. What changes would be observed in them?
  A)
   Both plant cell and RBC would not undergo any change.
  done clear
  B)
   The RBC would increase in size and burst while the plant cell would remain about the same size.
  done clear
  C)
   The plant cell would increase in size and burst while the RBC would remain about the same size.
  done clear
  D)
   Both plant cell and RBC would decrease in size and collapse.
  done clear
  View Answer play_arrow

• question_answer166) Which of the following hormones does not contain a polypeptide?
  A)
   Prostaglandin
  done clear
  B)
   Oxytocin
  done clear
  C)
   Insulin
  done clear
  D)
   Antidiuretic hormone
  done clear
  View Answer play_arrow

• question_answer167) Ribose sugar is present in
  A)
   RNA polymerase, RNA and ATP
  done clear
  B)
   RNA only
  done clear
  C)
   RNA polymerase and ATP
  done clear
  D)
   RNA and ATP
  done clear
  View Answer play_arrow

• question_answer168) Most of the endangered species are the victims of
  A)
   competition with introduced species
  done clear
  B)
   habitat destruction
  done clear
  C)
   over - hunting
  done clear
  D)
   acid - rain
  done clear
  View Answer play_arrow

• question_answer169) Damage to thymus in a child may lead to
  A)
   loss of cell - mediated immunity
  done clear
  B)
   a reduction in the haemoglobin content in blood
  done clear
  C)
   a reduction in the amount of plasma proteins
  done clear
  D)
   loss of antibody-mediated immunity
  done clear
  View Answer play_arrow

• question_answer170) The diagram of the section of a maize grain is given below. Identify the parts labelled A, B, C and D.
  A)
   Endosperm Coleopdie Scutellum Aleurone layer
  done clear
  B)

  A = Cotyledon

  B = Coleoptile

  C = Scutellum

  D = Epithelium

     
  done clear
  C)

  A = Endosperm

  B = Coleoptile

  C = Scutellum

  D = Epithelium

  done clear
  D)

  A = Endosperm

  B = Coleorrhiza

  C = Scutellum

  D = Epithelium

  done clear
  View Answer play_arrow

• question_answer171) Examples for lateral meristems are
  A)
   phellogen and procambium
  done clear
  B)
   fascicular cambium and procambium
  done clear
  C)
   procambium and dermatogen
  done clear
  D)
   fascicular cambium and cork cambium
  done clear
  View Answer play_arrow

• question_answer172) Vitellogenesis occurs during the formation of
  A)
   primary oocyte in the Graafian follicle
  done clear
  B)
   oogonial cell in the Graafian follicle
  done clear
  C)
   ootid in the fallopian tube
  done clear
  D)
   secondary oocyte in the fallopian tube
  done clear
  View Answer play_arrow

• question_answer173) A bacterium is capable of withstanding extreme heat, dryness and toxic chemicals. This indicates that it is probably able to form
  A)
   a thick peptidoglycan wall
  done clear
  B)
   endospores
  done clear
  C)
   endotoxins
  done clear
  D)
   endogenous buds
  done clear
  View Answer play_arrow

• question_answer174) In the absence of enterokinase, the digestion of ......... would be affected in our intestine.
  A)
   maltose
  done clear
  B)
   amino acid
  done clear
  C)
   albumin
  done clear
  D)
   starch
  done clear
  View Answer play_arrow

• question_answer175) The greatest threat to genetic diversity in agricultural crops is
  A)
   extensive use of insecticides and pesticides
  done clear
  B)
   extensive mixed cropping
  done clear
  C)
   introduction of high yielding varieties
  done clear
  D)
   extensive use of fertilizers
  done clear
  View Answer play_arrow

• question_answer176) Nosema bombycis, which causes pebrine in silk worms is a
  A)
   fungus
  done clear
  B)
   virus
  done clear
  C)
   bacterium
  done clear
  D)
   protozoan
  done clear
  View Answer play_arrow

• question_answer177) Palaeontologists unearthed a human skull during excavation. A small fragment of the scalp tissue was still attached to it. Only little DNA could be extracted from it. If the genes of the ancient man need to be analysed, the best way of getting sufficient amount of DNA from this extract is
  A)
   hybridising the DNA with a DNA probe
  done clear
  B)
   subjecting the DNA to polymerase chain reaction
  done clear
  C)
   subjecting the DNA to gel electrophoresis
  done clear
  D)
   treating the DNA with restriction endonucleases
  done clear
  View Answer play_arrow

• question_answer178) Which of the following would be insignificant amount in xylem sap?
  A)
   Sugar
  done clear
  B)
   Nitrates
  done clear
  C)
   Phosphates
  done clear
  D)
   Water
  done clear
  View Answer play_arrow

• question_answer179) If the person shows the production of interferons in his body, chances are that he is suffering from
  A)
   anthrax
  done clear
  B)
   malaria
  done clear
  C)
   measles
  done clear
  D)
   tetanus
  done clear
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• question_answer180) The RER in the cell synthesized a protein which would be later used in building the plasma membrane. But it is observed that the protein in the membrane is slightly different from the protein made in the RER. The protein was probably modified in another cell organelle. Identify that organelle in the given diagram.
  A)
   D
  done clear
  B)
   A
  done clear
  C)
   B
  done clear
  D)
   C
  done clear
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