Solved papers for CET Karnataka Medical CET - Karnataka Medical Solved Paper-2011

done CET - Karnataka Medical Solved Paper-2011 Total Questions - 180

• question_answer1) If C be the capacitance and V be the electric potential, then the dimensional formula of \[C{{V}^{2}}\]is
  A)
  \[\left[ M{{L}^{2}}{{T}^{-2}}{{A}^{0}} \right]\]     
  done clear
  B)
   \[\left[ ML{{T}^{-2}}{{A}^{-1}} \right]\]
  done clear
  C)
  \[\left[ M{}^\circ L{{T}^{-\text{ }2}}{{A}^{0}} \right]\]     
  done clear
  D)
   \[\left[ M{{L}^{-3}}TA \right]\]
  done clear
  View Answer play_arrow

• question_answer2) The displacement-time graph of two moving particles make angles of \[30{}^\circ \] and \[45{}^\circ \] with the JC-axis. The ratio of their velocities is
  A)
   \[\sqrt{3}:2\]
  done clear
  B)
   1 : 1
  done clear
  C)
   1 : 2            
  done clear
  D)
   1 : \[\sqrt{3}\]
  done clear
  View Answer play_arrow

• question_answer3) Block A of mass of 2 kg is placed over block B of mass 8 kg. The combination is placed over a rough horizontal surface. Coefficient of friction between B and the floor is 0.5. Coefficient of friction between blocks A and B is 0.4. A horizontal force of 10 N is applied on block B. The force of friction between blocks A and B is \[\left( g\text{ }=\text{ }10m{{s}^{-2}} \right)\]
  A)
   100 N          
  done clear
  B)
   40 N
  done clear
  C)
   50 N            
  done clear
  D)
   Zero
  done clear
  View Answer play_arrow

• question_answer4) The height y and the distance x along the horizontal plane of a projectile on a certain planet (with no surrounding atmosphere) are given by \[y=8t-5{{t}^{2}}m\] and \[x\text{ }=\text{ }6t\]m, where t is in seconds. The velocity with which the projectile is projected is
  A)
  \[6\text{ }m{{s}^{-1}}\]
  done clear
  B)
   \[8\text{ }m{{s}^{-1}}\]
  done clear
  C)
   \[10\text{ }m{{s}^{-1}}\]
  done clear
  D)
   \[14\text{ }m{{s}^{-1}}\]
  done clear
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• question_answer5) A body of mass 5 kg is thrown vertically up with a kinetic energy of 490 J. The height at which the kinetic energy of the body becomes half of the original value is (acceleration due to gravity\[=9.8\text{ }m{{s}^{-2}}\])
  A)
   5 m            
  done clear
  B)
   2.5 m
  done clear
  C)
   10 m           
  done clear
  D)
   12.5 m
  done clear
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• question_answer6) A solid sphere of mass m rolls down an inclined plane without slipping, starting from rest at the top of an inclined plane. The linear speed of the sphere at the bottom of the inclined plane is v. The kinetic energy of the sphere at the bottom is
  A)
   \[\frac{1}{2}m{{v}^{2}}\]
  done clear
  B)
   \[\frac{5}{3}m{{v}^{2}}\]
  done clear
  C)
   \[\frac{2}{5}m{{v}^{2}}\]
  done clear
  D)
   \[\frac{7}{10}m{{v}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer7) Two satellites of mass m and 9m are orbiting a planet in orbits of radius R. Their periods of revolution will be in the ratio of
  A)
   9 : 1             
  done clear
  B)
   3 : 1
  done clear
  C)
   1 : 1             
  done clear
  D)
   1 : 3
  done clear
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• question_answer8) The following four wires of length L and radius r are made of the same material. Which of these will have the largest extension, when the same tension is applied?
  A)
   L = 100 cm, r = 0.2 mm
  done clear
  B)
   L = 200 cm, r = 0.4 mm
  done clear
  C)
   L = 300 cm, r = 0.6 mm
  done clear
  D)
   L = 400 cm, r = 0.8 mm
  done clear
  View Answer play_arrow

• question_answer9) The resultant of two forces acting at an angle of \[120{}^\circ \] is 10 kg-wt and is perpendicular to one of the forces. That force is
  A)
   10\[\sqrt{3}\] kg-wt     
  done clear
  B)
   20\[\sqrt{3}\] kg-wt
  done clear
  C)
   10 kg-wt       
  done clear
  D)
   \[\frac{10}{\sqrt{3}}\] kg-wt
  done clear
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• question_answer10) Eight equal drops of water are falling through air with a steady velocity of \[10\text{ }cm\text{ }{{s}^{-1}}\].If the drops combine to form a single drop big in size, then the terminal velocity of this big drop is
  A)
   \[40\text{ }cm{{s}^{-1}}\]
  done clear
  B)
   \[10\text{ }cm{{s}^{-1}}\]
  done clear
  C)
   \[30\text{ }cm{{s}^{-1}}\]
  done clear
  D)
   \[80\text{ }cm{{s}^{-1}}\]
  done clear
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• question_answer11) Two capillary tubes of different diameters are dipped in water. The rise of water is
  A)
   the same in both tubes
  done clear
  B)
   greater in the tube of larger diameter
  done clear
  C)
   greater in the tube of smaller diameter
  done clear
  D)
   independent of the diameter of the tube
  done clear
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• question_answer12) A perfect gas at \[27{}^\circ C\]is heated at constant pressure so as to double its volume. The increase in temperature of the gas will be
  A)
  \[600{}^\circ C\]
  done clear
  B)
   \[327{}^\circ C\]
  done clear
  C)
  \[54{}^\circ C\]           
  done clear
  D)
   \[300{}^\circ C\]
  done clear
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• question_answer13) Three identical rods A, B and C are placed end to end. A temperature difference is maintained between the free ends of A and C. The thermal conductivity of B is thrice that of C and half of that of A. The effective thermal conductivity of the system will be (\[{{K}_{A}}\]is the thermal conductivity of rod A)
  A)
   \[\frac{1}{3}{{K}_{A}}\]           
  done clear
  B)
   \[3{{K}_{A}}\]
  done clear
  C)
   \[2{{K}_{A}}\]
  done clear
  D)
   \[\frac{2}{3}{{K}_{A}}\]
  done clear
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• question_answer14) The quantities of heat required to raise the temperatures of two copper spheres of radii \[{{r}_{1}}\] and \[{{r}_{2}}\] \[\left( {{r}_{1}}=\text{ }1.5\text{ }{{r}_{2}} \right)\] through 1 K are in the ratio of
  A)
   \[\frac{27}{8}\]
  done clear
  B)
   \[\frac{9}{4}\]
  done clear
  C)
   \[\frac{3}{2}\]
  done clear
  D)
   \[1\]
  done clear
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• question_answer15) Which one of the following is\[{{v}_{m}}\], -T graph for perfectly black body? \[{{v}_{m}}\]is the frequency of radiation with maximum intensity. T is the absolute temperature.
  A)
   A                
  done clear
  B)
   B
  done clear
  C)
   C                
  done clear
  D)
   D
  done clear
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• question_answer16) A particle executing a simple harmonic motion has a period of 6 s. The time taken by the particle to move from the mean position to half the amplitude, starting from the mean position is
  A)
   \[\frac{3}{2}s\]
  done clear
  B)
   \[\frac{1}{2}s\]
  done clear
  C)
   \[\frac{3}{4}s\]
  done clear
  D)
   \[\frac{1}{4}s\]
  done clear
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• question_answer17) The equation of a wave is given by y = 10 sin \[\left( \frac{2\pi }{45}t+\alpha  \right).\]If the displacement is 5 cm at t = 0, then the total phase at t = 7.5 sis
  A)
   \[\frac{\pi }{3}\]
  done clear
  B)
   \[\frac{\pi }{2}\]
  done clear
  C)
   \[\frac{\pi }{6}\]
  done clear
  D)
   \[\pi \]
  done clear
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• question_answer18) Two tuning forks A and B, produce notes of frequencies 258 Hz and 262 Hz. An unknown note sounded with A produces certain beats. When the same note is sounded with B, the beat frequency gets doubled. The unknown frequency is
  A)
   250 Hz        
  done clear
  B)
   252 Hz
  done clear
  C)
   254 Hz        
  done clear
  D)
   256 Hz
  done clear
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• question_answer19)   A wire under tension vibrates with a fundamental frequency of 600 Hz. If the length of the wire is doubled, the radius is halved and the wire is made to vibrate under one-ninth the tension. Then the fundamental frequency will become
  A)
   200 Hz         
  done clear
  B)
   300 Hz
  done clear
  C)
   600 Hz         
  done clear
  D)
   400 Hz
  done clear
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• question_answer20) Faintest stars are called
  A)
   zero magnitude stars
  done clear
  B)
   second magnitude stars
  done clear
  C)
   sixth magnitude stars
  done clear
  D)
   dwarfs
  done clear
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• question_answer21) Wavelength of given light waves in air and in a medium are \[\text{6000}\overset{\text{o}}{\mathop{\text{A}}}\,\] and \[\text{4000}\overset{\text{o}}{\mathop{\text{A}}}\,\] respectively. The critical angle is
  A)
   \[{{\tan }^{-1}}\left( \frac{2}{3} \right)\]
  done clear
  B)
   \[{{\tan }^{-1}}\left( \frac{3}{2} \right)\]
  done clear
  C)
   \[si{{n}^{-1}}\left( \frac{2}{3} \right)\]
  done clear
  D)
   \[si{{n}^{-1}}\left( \frac{3}{2} \right)\]
  done clear
  View Answer play_arrow

• question_answer22) The time required for the light to pass through a glass slab (refractive index = 1.5) of thickness 4 mm is (\[c=3\times 108\text{ }m{{s}^{-1}}\], speed of light in free space)
  A)
   \[{{10}^{-11}}s\]
  done clear
  B)
   \[2\times {{10}^{-11}}s\]
  done clear
  C)
   \[2\times {{10}^{11}}s\]
  done clear
  D)
   \[2\times {{10}^{-5}}s\]
  done clear
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• question_answer23) A prism having refractive index 1.414 and refracting angle \[30{}^\circ \] has one of the refracting surfaces silvered. A beam of light incident on the other refracting surface will retrace its path, if the angle of incidence is
  A)
   \[0{}^\circ \]
  done clear
  B)
   \[30{}^\circ \]
  done clear
  C)
   \[60{}^\circ \]
  done clear
  D)
   \[45{}^\circ \]
  done clear
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• question_answer24) A planoconvex lens has a maximum thickness of 6 cm. When placed on a horizontal table with the curved surface in contact with the table surface, the apparent depth of the bottommost point of the lens is found to be 4 cm. If the lens is inverted such that the plane face of the lens is in contact with the surface of the table, the apparent depth of the centre of the plane face is found to be \[\left( \frac{17}{4} \right)\] cm. The radius of curvature of the lens is
  A)
   68 cm         
  done clear
  B)
   75 cm
  done clear
  C)
   128 cm        
  done clear
  D)
   34 cm
  done clear
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• question_answer25) Two thin lenses have a combined power of +9D. When they are separated by a distance of 20 cm, their equivalent power become \[+\frac{27}{5}D.\]Their individual powers (in dioptre) are
  A)
   1, 8              
  done clear
  B)
   2, 7
  done clear
  C)
   3, 6               
  done clear
  D)
   4, 5
  done clear
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• question_answer26) Wavefront is the locus of all points, where the particles of the medium vibrate with the same
  A)
   phase          
  done clear
  B)
   amplitude
  done clear
  C)
   frequency      
  done clear
  D)
   period
  done clear
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• question_answer27) Two monochromatic  light  waves  of amplitudes \[3A\] and \[2A\] interfering at a point have a phase difference of\[60{}^\circ \]. The intensity at that point will be proportional to
  A)
  \[5\text{ }{{A}^{2}}\]           
  done clear
  B)
   \[13\text{ }{{A}^{2}}\]
  done clear
  C)
   \[7\text{ }{{A}^{2}}\]
  done clear
  D)
   \[19\text{ }{{A}^{2}}\]
  done clear
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• question_answer28) Consider the following statements in case of Youngs double slit experiment.

  (1) A slit S is necessary if we use an ordinary extended source of light.

  (2) A slit S is not needed if we use an ordinary but well collimated beam of light.

  (3) A slit S is not needed if we use a spatially coherent source of light.

  Which of the above statements are correct?
  A)
   (1), (2) and (3) 
  done clear
  B)
   (1) and (2)
  done clear
  C)
   (2) and (3)     
  done clear
  D)
   (1) and (3)
  done clear
  View Answer play_arrow

• question_answer29) A parallel beam of light of wavelength \[\text{6000}\overset{\text{o}}{\mathop{\text{A}}}\,\]gets diffracted by a single slit of width 0,3 mm. The angular position of the first minima of diffracted light is
  A)
   \[2\times {{10}^{-3}}rad~\]
  done clear
  B)
   \[3\times {{10}^{-3}}rad\]
  done clear
  C)
   \[1.8\times {{10}^{-3}}rad~~~\]
  done clear
  D)
   \[6\times {{10}^{-3}}rad\]
  done clear
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• question_answer30) The critical angle of a certain medium is \[si{{n}^{-1}}\]\[\left( \frac{3}{5} \right)\] The polarizing angle of the medium is
  A)
   \[{{\sin }^{-1}}\left( \frac{4}{5} \right)\]
  done clear
  B)
   \[ta{{n}^{-1}}\left( \frac{5}{3} \right)\]
  done clear
  C)
   \[ta{{n}^{-1}}\left( \frac{3}{4} \right)\]
  done clear
  D)
   \[ta{{n}^{-1}}\left( \frac{4}{3} \right)\]
  done clear
  View Answer play_arrow

• question_answer31) Two identical charged spheres of material density \[\rho \], suspended from the same point by inextensible strings of equal length make an angle \[\theta \] between the strings. When suspended in a liquid of density \[\sigma \]the angle\[\theta \]remains the same. The dielectric constant K of the liquid is
  A)
   \[\frac{\rho }{\rho -\sigma }\]
  done clear
  B)
   \[\frac{\rho -\sigma }{\rho }\]
  done clear
  C)
   \[\frac{\rho }{\rho +\sigma }\]
  done clear
  D)
   \[\frac{\rho +\sigma }{\rho }\]
  done clear
  View Answer play_arrow

• question_answer32) The electric field at a point due to an electric dipole, on an axis inclined at an angle \[\theta \left( <\text{ }90{}^\circ  \right)\] to the dipole axis, is perpendicular to the dipole axis, if the angle \[\theta \] is
  A)
   \[{{\tan }^{-1}}\left( 2 \right)\]
  done clear
  B)
   \[{{\tan }^{-1}}\left( \frac{1}{2} \right)\]
  done clear
  C)
   \[{{\tan }^{-1}}\left( \sqrt{2} \right)\]
  done clear
  D)
   \[{{\tan }^{-1}}\left( \frac{1}{\sqrt{2}} \right)\]
  done clear
  View Answer play_arrow

• question_answer33) In the circuit shown, the currents \[{{i}_{1}}\]and \[{{i}_{2}}\]are
  A)
  \[{{i}_{1}}=1.5A\], \[{{i}_{2}}=0.5\text{ }A\]
  done clear
  B)
  \[{{i}_{1}}=0.5A\], \[{{i}_{2}}=1.5\text{ }A\]
  done clear
  C)
  \[{{i}_{1}}=\text{ }1\text{ }A\], \[{{i}_{2}}=\text{ }3\text{ }A\]
  done clear
  D)
  \[{{i}_{1}}=\text{ }3\text{ }A\], \[{{i}_{2}}=\text{ }1\text{ }A\]
  done clear
  View Answer play_arrow

• question_answer34) In the given network, the valve of C, so that an equivalent capacitance between points A and B is \[\text{3 }\!\!\mu\!\!\text{ F}\], is
  A)
   \[\frac{1}{5}\mu F\]
  done clear
  B)
   \[\frac{31}{5}\mu F\]
  done clear
  C)
   \[48\mu F\]
  done clear
  D)
   \[36\mu F\]
  done clear
  View Answer play_arrow

• question_answer35) A conductor wire having\[{{10}^{29}}\]free electrons/ \[{{m}^{3}}\]carries a current of 20A. If the cross-section of the wire is\[1m{{m}^{2}}\], then the drift velocity of electrons will be \[\left( e=1.6\times {{1}^{-19}}C \right)\]
  A)
   \[1.25\times {{10}^{-4}}m{{s}^{-1}}~\]
  done clear
  B)
   \[1.25\times {{10}^{-3}}m{{s}^{-1}}\]
  done clear
  C)
   \[1.25\times {{10}^{-5}}m{{s}^{-1}}\]
  done clear
  D)
   \[6.25\times {{10}^{-3}}m{{s}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer36) A resistor has a colour code of green, blue, brown and silver. What is its resistance?
  A)
   \[56\,\Omega \pm 5%~\]
  done clear
  B)
   \[560\,\,\Omega \pm 10%\]
  done clear
  C)
   \[560\,\,\Omega ~\pm \text{ }5%\]
  done clear
  D)
   \[5600\,\,\Omega \pm \text{ }10\text{ }%\]
  done clear
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• question_answer37) The voltage \[V\]and current\[I\]graph for a conductor at two different temperatures \[{{T}_{1}}\]and \[{{T}_{2}}\]and shown in the figure. The relation between \[{{T}_{1}}\]and \[{{T}_{2}}\]is
  A)
   \[{{T}_{1}}>{{T}_{2}}\]
  done clear
  B)
   \[{{T}_{1}}<{{T}_{2}}\]
  done clear
  C)
   \[{{T}_{1}}={{T}_{2}}\]
  done clear
  D)
   \[{{T}_{1}}=\frac{1}{{{T}_{2}}}\]
  done clear
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• question_answer38) Consider the following statements regarding the network shown in the figure.

  (1) The equivalent resistance of the network between points A and B is independent of value of G.

  (2) The equivalent resistance of the network between points A and B is \[\frac{4}{3}\] R

  (3) The current through G is zero.

  Which of the above statements is/are true?
  A)
   (1) alone        
  done clear
  B)
   (2) alone
  done clear
  C)
   (2) and (3)      
  done clear
  D)
   (1), (2) and (3)
  done clear
  View Answer play_arrow

• question_answer39) The torque required to hold a small circular coil of 10 turns, area\[1m{{m}^{2}}\]and carrying a current of \[\left( \frac{21}{44} \right)\]A in the middle of a long solenoid of \[{{10}^{3}}\]turns/m carrying a current of 2.5 A, with its axis perpendicular to the axis of the solenoid is Solenoid
  A)
   \[1.5\times {{10}^{-6}}N-m~~~\]
  done clear
  B)
   \[1.5\times {{10}^{-8}}N-m\]
  done clear
  C)
   \[1.5\times {{10}^{+6}}N-m\]
  done clear
  D)
   \[1.5\times {{10}^{+8}}N-m\]
  done clear
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• question_answer40) A particle of charge e and mass m moves with a velocity v in a magnetic field B applied perpendicular to the motion of the particle. The radius r of its path in the field is
  A)
   \[\frac{mv}{Be}\]
  done clear
  B)
   \[\frac{Be}{mv}\]
  done clear
  C)
   \[\frac{ev}{Bm}\]
  done clear
  D)
   \[\frac{Bv}{em}\]
  done clear
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• question_answer41) A neutron, a proton, an electron and an \[\alpha \]-particle enter a region of uniform magnetic field with the same velocities. The magnetic field is perpendicular and directed into the plane of the paper. The tracks of the particles are labelled in the figure. The electron follows the track.
  A)
   A                
  done clear
  B)
   B
  done clear
  C)
   C                 
  done clear
  D)
   D
  done clear
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• question_answer42) The deflection in a moving coil galvanometer is reduced to half when it is shunted with a 40\[\Omega \] coil. The resistance of the galvanometer is
  A)
   80\[\Omega \]           
  done clear
  B)
   40\[\Omega \]
  done clear
  C)
   20\[\Omega \]            
  done clear
  D)
   15\[\Omega \]
  done clear
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• question_answer43) A current of\[\left( \frac{2}{\sqrt{3}} \right)A\], produces a deflection of\[60{}^\circ \]in a tangent galvanometer. The reduction factor is
  A)
   \[\left( \frac{2}{\sqrt{3}} \right)A\]
  done clear
  B)
   \[\left( \frac{2}{3} \right)A\]
  done clear
  C)
   \[2A\]
  done clear
  D)
   \[\left( \frac{3}{2} \right)A\]
  done clear
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• question_answer44) In an AC circuit, V and \[I\] are given by V=150 sin (150 t) volt and \[I\]= 150 \[sin\]\[\left( 150t+\frac{\pi }{3} \right)\]amp. The power dissipated in the circuit is
  A)
   106 W        
  done clear
  B)
   150 W
  done clear
  C)
   5625 W         
  done clear
  D)
   zero
  done clear
  View Answer play_arrow

• question_answer45) In the series L-C-R circuit shown, the impedance is
  A)
   200\[\Omega \]          
  done clear
  B)
   100\[\Omega \]
  done clear
  C)
   300\[\Omega \]          
  done clear
  D)
   500\[\Omega \]
  done clear
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• question_answer46) The energy stored in an inductor of self inductance L henry carrying a current of I ampere is
  A)
   \[\frac{1}{2}{{L}^{2}}I\]
  done clear
  B)
   \[\frac{1}{2}L{{I}^{2}}\]
  done clear
  C)
   \[L{{I}^{2}}\]
  done clear
  D)
   \[{{L}^{2}}I\]
  done clear
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• question_answer47) A transformer works on the principle of
  A)
   self - induction
  done clear
  B)
   electrical inertia
  done clear
  C)
   mutual induction
  done clear
  D)
   magnetic effect of the electrical current
  done clear
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• question_answer48) Flash spectrum confirms a/an
  A)
   total solar eclipse
  done clear
  B)
   lunar eclipse
  done clear
  C)
   earthquake
  done clear
  D)
   magnetic storm
  done clear
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• question_answer49) The photoelectric threshold wavelength for silver is \[{{\lambda }_{0}}.\]The energy of the electron ejected from the surface of silver by an incident wavelength \[\lambda \left( \lambda <{{\lambda }_{0}} \right)\]will be
  A)
   \[hc\left( {{\lambda }_{0}}-\lambda  \right)\]
  done clear
  B)
   \[\frac{hc}{{{\lambda }_{0}}-\lambda }\]
  done clear
  C)
   \[\frac{h}{c}\left( \frac{{{\lambda }_{0}}-\lambda }{\lambda {{\lambda }_{0}}} \right)\]
  done clear
  D)
   \[hc\left( \frac{{{\lambda }_{0}}-\lambda }{\lambda {{\lambda }_{0}}} \right)\]
  done clear
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• question_answer50) Rutherfords atomic model could account for
  A)
   stability of atoms
  done clear
  B)
   origin of spectra
  done clear
  C)
   the positive charged central can of an atom
  done clear
  D)
   concept of stationary orbits
  done clear
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• question_answer51) When an electron jumps from the orbit \[n=2\] to\[n=4\], then wavelength of the radiations absorbed will be (R is Rydbergs constant)
  A)
   \[\frac{16}{3R}\]
  done clear
  B)
   \[\frac{16}{5R}\]
  done clear
  C)
   \[\frac{5R}{16}\]
  done clear
  D)
   \[\frac{3R}{16}\]
  done clear
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• question_answer52) The thermonuclear reaction of hydrogen inside the stars is taking place by a cycle of operations. The particular element which acts as a catalyst is
  A)
   Nitrogen       
  done clear
  B)
   Oxygen
  done clear
  C)
   Helium         
  done clear
  D)
   Carbon
  done clear
  View Answer play_arrow

• question_answer53) The ratio of minimum wavelengths of Lyman and Balmer series will be
  A)
   1.25           
  done clear
  B)
   0.25
  done clear
  C)
   5              
  done clear
  D)
   10
  done clear
  View Answer play_arrow

• question_answer54) The fraction of the initial number of radioactive nuclei which remain undecayed after half of a half-life of the radioactive sample is
  A)
   \[\frac{1}{4}\]
  done clear
  B)
   \[\frac{1}{2\sqrt{2}}\]
  done clear
  C)
   \[\frac{1}{2}\]
  done clear
  D)
   \[\frac{1}{\sqrt{2}}\]
  done clear
  View Answer play_arrow

• question_answer55) 1 curie represents
  A)
   \[3.7\times {{10}^{7}}\]disintegrations per second
  done clear
  B)
   \[3.7\times {{10}^{10}}\]disintegrations per second
  done clear
  C)
   \[{{10}^{6}}\]disintegrations per second
  done clear
  D)
   1 disintegrations per second
  done clear
  View Answer play_arrow

• question_answer56) An n-p-n transistor can be considered to be equivalent to two diodes, connected. Which of the following figures is the correct one?
  A)
   
  done clear
  B)
   
  done clear
  C)
    
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer57) In the case of forward biasing of a p-n junction diode, which one of the following figures correctly depicts the direction of conventional current (indicated by an arrow mark)?
  A)
   
  done clear
  B)
   
  done clear
  C)
    
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer58) An electron of mass \[{{m}_{e}}\]and a proton of mass \[{{m}_{p}}\]are moving with the same speed. The ratio of their de-Broglies wavelengths \[{{\lambda }_{e}}/{{\lambda }_{p}}\] is
  A)
   1               
  done clear
  B)
   1836
  done clear
  C)
   \[\frac{1}{1836}\]
  done clear
  D)
   918
  done clear
  View Answer play_arrow

• question_answer59) The output of given logic circuit is
  A)
   A - (B + C)
  done clear
  B)
   A . (B . C)
  done clear
  C)
   (A + B) . (A + C)
  done clear
  D)
   A + B + C
  done clear
  View Answer play_arrow

• question_answer60) If the scattering intensity of a liquid is 8 units at a wavelength of 500 nm, then the scattering intensity at a wavelength of 400 nm will be approximately
  A)
   13 units
  done clear
  B)
   16 units
  done clear
  C)
   20 units
  done clear
  D)
   24 unit
  done clear
  View Answer play_arrow

• question_answer61) Which one of the following statements is false?
  A)
   During roasting, moisture is removed from the ore
  done clear
  B)
   The ore is freed from almost all non-metallic impurities
  done clear
  C)
   Calcination of ore is carried out in the absence of any blast of air
  done clear
  D)
   The concentrated zinc blende is subjected to calcinatioh during its extraction by pyrometallurgy
  done clear
  View Answer play_arrow

• question_answer62) Which one of the following sets of quantum numbers represents the highest energy level in an atom?
  A)
   \[n=4,l=0,m=0,s=+\frac{1}{2}\]
  done clear
  B)
   \[n=3,l=1,m=1,s=+\frac{1}{2}\]
  done clear
  C)
   \[n=3,l=2,m=2,s=+\frac{1}{2}\]
  done clear
  D)
   \[n=3,l=0,m=0,s=+\frac{1}{2}\]
  done clear
  View Answer play_arrow

• question_answer63) When \[{{O}_{2}}\] is converted into \[O_{2}^{+}\]
  A)
   both paramagnetic character and bond order increase
  done clear
  B)
   bond order decreases
  done clear
  C)
   paramagnetic character increases
  done clear
  D)
   paramagnetic character decreases and the bond order increases
  done clear
  View Answer play_arrow

• question_answer64) In chromite ore, the oxidation number of iron and chromium are respectively
  A)
   \[4-3,+2\]
  done clear
  B)
   \[+3,+6,\]
  done clear
  C)
   \[+2,+6,\]
  done clear
  D)
   \[+2,+3\]
  done clear
  View Answer play_arrow

• question_answer65) The number of naturally occurring p-block elements that are diamagnetic is
  A)
   \[18\]
  done clear
  B)
   \[6\]
  done clear
  C)
   \[5\]
  done clear
  D)
   \[7\]
  done clear
  View Answer play_arrow

• question_answer66) If the energies of the two photons in the ratio of \[3:2\], their wavelength will be in the ratio of
  A)
   \[2:3\]
  done clear
  B)
   \[9:4\]
  done clear
  C)
   \[3:2\]
  done clear
  D)
   \[1:2\]
  done clear
  View Answer play_arrow

• question_answer67) Which one of these is not true for benzene?
  A)
   It forms only one type of   monosubstituted product
  done clear
  B)
   There are three carbon-carbon single bonds and three carbon-carbon double bonds
  done clear
  C)
   Heat of hydrogenation of benzene is less than its theoretical value
  done clear
  D)
   The bond angle between carbon-car bonds is \[{{120}^{o}}\]
  done clear
  View Answer play_arrow

• question_answer68) Generally, the first ionisation energy  increases along a period. But there are some exceptions. The one which is not an exception is
  A)
   \[Be\] and B
  done clear
  B)
   \[Na\] and \[Mg\]
  done clear
  C)
   \[Mg\]and \[Al\]
  done clear
  D)
   \[N\] and \[0\]
  done clear
  View Answer play_arrow

• question_answer69) Out of the given two compounds, the vapour pressure of B at a particular temperature is
  A)
   higher than that of A
  done clear
  B)
   lower than that of A
  done clear
  C)
   higher or lower than A depending on the size of the vessel
  done clear
  D)
   same as that of A
  done clear
  View Answer play_arrow

• question_answer70) Increasing order of carbon-carbon bond length for the following is \[\underset{(A)}{\mathop{{{C}_{2}}{{H}_{4}}}}\,\] \[\underset{(B)}{\mathop{{{C}_{2}}{{H}_{2}}}}\,\] \[\underset{(C)}{\mathop{{{C}_{6}}{{H}_{6}}}}\,\] \[\underset{(D)}{\mathop{{{C}_{2}}{{H}_{6}}}}\,\]
  A)
   \[C<B<A<D\]
  done clear
  B)
   \[B<C<A<D\]
  done clear
  C)
   \[D<C<A<B\]
  done clear
  D)
   \[B<A<C<D\]
  done clear
  View Answer play_arrow

• question_answer71) A mixture of \[CaC{{l}_{2}}\] and \[NaCl\] weighing 4.44 g is treated with sodium carbonate solution to precipitate all the calcium ions as calcium carbonate. The calcium carbonate so obtained is heated strongly to get 0.56 g of \[CaO\]. The percentage of \[NaCl\] in the mixture is (atomic mass of\[Ca=40\])
  A)
   \[75\]             
  done clear
  B)
   \[31.5\]
  done clear
  C)
   \[40.2\]            
  done clear
  D)
   \[25\]
  done clear
  View Answer play_arrow

• question_answer72) \[50c{{m}^{3}}\]of \[0.2N\text{ }HCl\]is titrated against\[~0.1\text{ }N\,\,NaOH\]    solution.   The   titration   was discontinued after adding \[50c{{m}^{3}}\]of \[NaOH\]. The remaining titration is completed by adding \[0.5N\text{ }KOH\]. The volume of \[KOH\] required for completing the titration is
  A)
   \[12c{{m}^{3}}\]         
  done clear
  B)
   \[10c{{m}^{3}}\]
  done clear
  C)
   \[21.0c{{m}^{3}}\]
  done clear
  D)
   \[16.2c{{m}^{3}}\]
  done clear
  View Answer play_arrow

• question_answer73) The rms velocity of hydrogen is \[\sqrt{7}\] times the rms velocity of nitrogen. If T is the temperature of the gas, which of the following is true?
  A)
   \[{{T}_{{{H}_{2}}}}=\sqrt{7}{{T}_{{{N}_{2}}}}\]
  done clear
  B)
   \[{{T}_{{{N}_{2}}}}={{T}_{{{H}_{2}}}}\]
  done clear
  C)
   \[{{T}_{{{N}_{2}}}}=\sqrt{7}{{T}_{{{H}_{2}}}}\]
  done clear
  D)
   \[{{T}_{{{N}_{2}}}}=2{{T}_{{{H}_{2}}}}\]
  done clear
  View Answer play_arrow

• question_answer74) 25 g of each of the following gasses are taken at \[{{27}^{o}}C\]and 600 mm pressure. Which of these will have the least volume?
  A)
   \[HCl\]           
  done clear
  B)
   \[HBr\]
  done clear
  C)
   \[HI\]            
  done clear
  D)
   \[HF\]
  done clear
  View Answer play_arrow

• question_answer75) The amount of heat evolved when \[500c{{m}^{3}}\]of \[0.1M\text{ }HCl\]is mixed with \[200c{{m}^{3}}\]of \[0.2M\] \[NaOH\]is
  A)
   \[2.292\text{ }kJ\]
  done clear
  B)
   \[1.292\text{ }kJ\]
  done clear
  C)
   \[22.9\text{ }kJ\]
  done clear
  D)
   \[0.292\text{ }kJ\]
  done clear
  View Answer play_arrow

• question_answer76) The enthalpy of vaporization of benzene is \[+35.3\text{ }kJ/mol\]at its boiling point,\[{{80}^{o}}C\]. The entropy change in the transition of vapour to liquid at its boiling point is
  A)
   \[-100\]          
  done clear
  B)
   \[+100\]
  done clear
  C)
   \[+342\]
  done clear
  D)
   \[-342\]
  done clear
  View Answer play_arrow

• question_answer77) Based on the first law of thermodynamics, which one of the following is correct?
  A)
   For an isothermal process, \[Q=+W\]
  done clear
  B)
   For an isochoric process, \[\Delta U=-Q\]
  done clear
  C)
   For an adiabatic process, \[\Delta U=-W\]
  done clear
  D)
   For a cyclic process, \[Q=-W\]
  done clear
  View Answer play_arrow

• question_answer78) Consider the following gaseous equilibria with equilibrium constants \[{{K}_{1}}\] and \[{{K}_{2}}\] respectively, \[S{{O}_{2}}(g)+\frac{1}{2}{{O}_{2}}(g)S{{O}_{3}}(g)\] \[2S{{O}_{3}}(g)2S{{O}_{2}}(g)+{{O}_{2}}(g)\] The equilibrium constants are related as
  A)
   \[2{{K}_{1}}=K_{2}^{2}\]       
  done clear
  B)
   \[K_{1}^{2}=\frac{1}{{{K}_{2}}}\]
  done clear
  C)
   \[K_{2}^{2}=\frac{1}{{{K}_{1}}}\]
  done clear
  D)
   \[{{K}_{2}}=\frac{2}{K_{1}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer79) During the adsorption of krypton on activated charcoal at low temperature
  A)
   \[\Delta H<0\]and \[\Delta S<0\]
  done clear
  B)
   \[\Delta H>0\]and \[\Delta S<0\]
  done clear
  C)
   \[\Delta H>0\] and \[\Delta S>0\]
  done clear
  D)
   AH < 0 and \[\Delta S>0\]
  done clear
  View Answer play_arrow

• question_answer80) For the reversible reaction, \[A(s)+B(g)\]\[A(s)+B(g)C(g)+D(g),\] \[\Delta {{G}^{o}}=-350kJ,\] which one of the following statements is true?
  A)
   The reaction is thermodynamically non-feasible
  done clear
  B)
   The entropy change is negative.
  done clear
  C)
   Equilibrium constant is greater than one
  done clear
  D)
   The reaction should be instantaneous
  done clear
  View Answer play_arrow

• question_answer81) . Identify B and D in the following sequence of reactions.
  A)
   methanol and bromoethane
  done clear
  B)
   ethyl hydrogen sulphate and alcoholic\[KOH\]
  done clear
  C)
   ethyl hydrogen sulphate and aqueous \[KOH\]
  done clear
  D)
   ethanol and alcoholic \[KOH\]
  done clear
  View Answer play_arrow

• question_answer82) The compound which gives turbidity immediately with Lucas reagent at room temperature is
  A)
   butan-1-ol
  done clear
  B)
   butan-2-ol
  done clear
  C)
   2-methyl propan-2-ol
  done clear
  D)
   2-methyl propan-1-ol
  done clear
  View Answer play_arrow

• question_answer83) Ethyl benzene cannot be prepared by
  A)
   Wurtz reaction
  done clear
  B)
   Wurtz-Fittig reaction
  done clear
  C)
   Friedel-Craffs reaction
  done clear
  D)
   Clemmensen reduction
  done clear
  View Answer play_arrow

• question_answer84) 1.2 g of organic compound of Kjeldahlization liberates ammonia which consumes \[30c{{m}^{3}}\] of\[1N\text{ }HCl\]. The percentage of nitrogen in the organic compound is
  A)
   \[30\]             
  done clear
  B)
   \[35\]
  done clear
  C)
   \[46.67\]          
  done clear
  D)
   \[20.8\]
  done clear
  View Answer play_arrow

• question_answer85) Carbon cannot reduce \[F{{e}_{2}}{{O}_{3}}\] to Fe at a temperature below 983 K because
  A)
   free energy change for the formation of \[CO\] is more negative than that of \[F{{e}_{2}}{{O}_{3}}\]
  done clear
  B)
   \[CO\] is thermodynamically more stable than \[F{{e}_{2}}{{O}_{3}}\]
  done clear
  C)
   carbon has higher affinity towards oxygen than iron
  done clear
  D)
   iron has higher affinity towards oxygen than carbon
  done clear
  View Answer play_arrow

• question_answer86) The yellow precipitate formed during the chromyl chloride test is chemically
  A)
   chromic acid    
  done clear
  B)
   lead chromate
  done clear
  C)
   lead acetate     
  done clear
  D)
   sodium chromate
  done clear
  View Answer play_arrow

• question_answer87) \[1g\]of silver gets distributed between \[10c{{m}^{3}}\] of molten zinc and \[100c{{m}^{3}}\]of molten lead at\[{{800}^{o}}C\]. The percentage of silver still left in the lead layer is approximately
  A)
   \[2\]              
  done clear
  B)
   \[5\]
  done clear
  C)
   \[3\]               
  done clear
  D)
   \[1\]
  done clear
  View Answer play_arrow

• question_answer88) Which one of the following is true?
  A)
   \[NaOH\] is used in the concentration of bauxite ore
  done clear
  B)
   \[NaOH\] is a primary standard in volumetric analysis
  done clear
  C)
   Manganous hydroxide is soluble in excess of \[NaOH\] solution
  done clear
  D)
   \[NaOH\]solution does not react with \[Cl\]
  done clear
  View Answer play_arrow

• question_answer89) In Ramsay and Rayleighs isolation of noble gases from air, the nitrogen of the air is finally converted into
  A)
   \[NaN{{O}_{3}}\] only
  done clear
  B)
   \[NO\]and \[N{{O}_{2}}\]
  done clear
  C)
   \[NaN{{O}_{3}}\]only
  done clear
  D)
   \[NaN{{O}_{2}}\]  and \[NaN{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer90) The spin only magnetic moment of \[F{{e}^{2+}}\] ion (in BM) is approximately
  A)
   \[4\]              
  done clear
  B)
   \[7\]
  done clear
  C)
   \[5\]              
  done clear
  D)
   \[6\]
  done clear
  View Answer play_arrow

• question_answer91) The IUPAC name of the complex  \[[Co{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]Cl\]is
  A)
   dichloro   tetraammine   cobalt   (III) chloride
  done clear
  B)
   tetraammine   dichloro   cobalt   (III) chloride
  done clear
  C)
   tetraammine dichloro cobalt (II) chloride
  done clear
  D)
   tetraammine dichloro cobalt (IV) chloride
  done clear
  View Answer play_arrow

• question_answer92) Excess of silver nitrate solution is added to \[100mL\]of \[0.01M\]pentaaqua chloro chromium (III) chloride solution. The mass of silver chloride obtained in grams is [Atomic mass of silver is 108].
  A)
   \[287\times {{10}^{-3}}\]
  done clear
  B)
   \[143.5\times {{10}^{-3}}\]
  done clear
  C)
   \[143.5\times {{10}^{-2}}\]
  done clear
  D)
   \[287\times {{10}^{-2}}\]
  done clear
  View Answer play_arrow

• question_answer93) The folllowing data were obtained during the first order decomposition of \[2A(g)\to B(g)+C(s)\]at a constant volume and at a particular temperature

  S. no.	Time	Total  pressure in Pascal
  1.	At the end of 10 min	300
  2.	After completion	200

  The rate constant in \[mi{{n}^{-1}}\]is
  A)
   \[0.0693\]
  done clear
  B)
   \[69.3\]
  done clear
  C)
   \[6.93\]
  done clear
  D)
   \[6.93\times {{10}^{-4}}\]
  done clear
  View Answer play_arrow

• question_answer94) The time required for 100% completion of a zero order reaction is
  A)
   \[ak\]          
  done clear
  B)
   \[\frac{a}{2k}\]
  done clear
  C)
   \[\frac{a}{2k}\]
  done clear
  D)
   \[\frac{2k}{a}\]
  done clear
  View Answer play_arrow

• question_answer95) The activation energy of a reaction at a given temperature is found to be \[2.303RT\text{ }J\text{ }mo{{l}^{-1}}\]. The ratio of rate constant to the Arrhenius factor is
  A)
   \[0.01\]            
  done clear
  B)
   \[0.1\]
  done clear
  C)
   \[0.02\]
  done clear
  D)
   \[0.001\]
  done clear
  View Answer play_arrow

• question_answer96) pH value of which one of the following is not equal to one?
  A)
   \[0.1M\,C{{H}_{3}}COOH\]
  done clear
  B)
   \[0.1M\,HN{{O}_{3}}\]
  done clear
  C)
   \[0.05M\,{{H}_{2}}S{{O}_{4}}\]
  done clear
  D)
  \[50c{{m}^{3}}0.4M\text{ }HCl+50c{{m}^{3}}\text{ }0.2M\text{ }NaOH\]
  done clear
  View Answer play_arrow

• question_answer97) A buffer solution contains \[0.1\] mole of sodium acetate dissolved in \[1000c{{m}^{3}}\]of \[0.1M\]acetic acid. To the above buffer solution, \[0.1mole\]of sodium acetate is further added and dissolved. The pH of the resulting buffer is
  A)
   \[p{{k}_{a}}\]
  done clear
  B)
   \[p{{k}_{a}}+2\]
  done clear
  C)
   \[p{{k}_{a}}-\log 2\]     
  done clear
  D)
   \[p{{k}_{a}}+\log 2\]
  done clear
  View Answer play_arrow

• question_answer98) \[{{H}_{2}}S\] is passed into one \[n{{m}^{3}}\]of a solution containing 0.1 mole of \[Z{{n}^{2+}}\] and \[0.01\]mole of \[C{{u}^{2+}}\] till the sulphide ion concentration reaches to \[8.1\times {{10}^{-19}}\] moles. Which one of the following statements is true? [\[{{K}_{sp}}\] of \[ZnS\] and \[CuS\] are \[3\times {{10}^{-22}}\] and \[8\times {{10}^{-36}}\]respectively.]
  A)
   Only \[ZnS\] precipitates
  done clear
  B)
   Both \[CuS\] and \[ZnS\] precipitate
  done clear
  C)
   Only \[CuS\] precipitates
  done clear
  D)
   No precipitation occurs
  done clear
  View Answer play_arrow

• question_answer99) \[{{E}_{1}},{{E}_{2}}\] and \[{{E}_{3}}\] are the emfs of the following three galvanic cells respectively. [a] \[Zn(s)|Z{{n}^{2+}}(0.1M)||C{{u}^{2+}}(1M)|Cu(s)\] [b] \[Zn(s)|Z{{n}^{2+}}(1M)||C{{u}^{2+}}(1M)|Cu(s)\] [c] \[Zn(s)|Z{{n}^{2+}}(1M)||C{{u}^{2+}}(0.1M)|Cu(s)\] Which one of the following is true?
  A)
   \[{{E}_{2}}>{{E}_{1}}>{{E}_{3}}\]
  done clear
  B)
   \[{{E}_{1}}>{{E}_{2}}>{{E}_{3}}\]
  done clear
  C)
   \[{{E}_{3}}>{{E}_{1}}>{{E}_{2}}\]
  done clear
  D)
   \[{{E}_{3}}>{{E}_{2}}>{{E}_{1}}\]
  done clear
  View Answer play_arrow

• question_answer100) \[0.023g\]of sodium metal is reacted with \[100c{{m}^{3}}\]of water. The pH of the resulting solution is
  A)
   \[10\]              
  done clear
  B)
   \[8\]
  done clear
  C)
   \[9\]              
  done clear
  D)
   \[12\]
  done clear
  View Answer play_arrow

• question_answer101) The standard emf of a galvanic cell involving moles of electrons in its redox reaction is \[0.59V\]. The equilibrium constant for the redox reaction of the cell is
  A)
   \[{{10}^{20}}\]           
  done clear
  B)
   \[{{10}^{5}}\]
  done clear
  C)
   \[10\]              
  done clear
  D)
   \[{{10}^{10}}\]
  done clear
  View Answer play_arrow

• question_answer102) \[9.65C\]of electric current is passed through fused alhydrous \[MgC{{l}_{2}}\]. The magnesium metal thus obtained is completely converted into a Grignard reagent. The number of moles of Grignard reagent obtained is
  A)
   \[5\times {{10}^{-4}}\]        
  done clear
  B)
   \[1\times {{10}^{-4}}\]
  done clear
  C)
   \[5\times {{10}^{-5}}\]        
  done clear
  D)
   \[1\times {{10}^{-5}}\]
  done clear
  View Answer play_arrow

• question_answer103) The empirical formula of a non-electrolyte is \[C{{H}_{2}}O\]. A solution containing \[3g\] of the compound exerts the same osmotic pressure as that of \[0.05M\]glucose solution. The molecular formula of the compound is
  A)
  \[C{{H}_{2}}O~\]     
  done clear
  B)
   \[{{C}_{2}}{{H}_{4}}{{O}_{2}}\]
  done clear
  C)
   \[{{C}_{4}}{{H}_{8}}{{O}_{4}}\]        
  done clear
  D)
   \[{{C}_{3}}{{H}_{6}}{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer104) Which one of the following is a covalent crystal?
  A)
   Rock salt        
  done clear
  B)
   Ice
  done clear
  C)
   Quartz          
  done clear
  D)
   Dry ice
  done clear
  View Answer play_arrow

• question_answer105) Which one of the following does not involve coagulation?
  A)
   Clotting of blood by the use of ferric chloride
  done clear
  B)
   Formation of delta region
  done clear
  C)
   Treatment of drinking water by potash alum
  done clear
  D)
   Peptization
  done clear
  View Answer play_arrow

• question_answer106) A solution of two liquids boils at a temperature more than the boiling point of either of them. Hence, the binary solution shows
  A)
   negative deviation from Raoulfs law
  done clear
  B)
   positive deviation from Raoulfs law
  done clear
  C)
   no deviation from Raoults law
  done clear
  D)
   positive or negative deviation from Raoulfs law depending upon the composition
  done clear
  View Answer play_arrow

• question_answer107) Which one of the nitrogen atoms in \[{{H}_{2}}\underset{I}{\mathop{N}}\,-\underset{II}{\mathop{N}}\,H-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-\underset{III}{\mathop{N}}\,{{H}_{2}}\] is   the   most nudeophilic?
  A)
   III
  done clear
  B)
   I
  done clear
  C)
   II
  done clear
  D)
   All three nitrogen atoms are equally strong nudeophilic centres
  done clear
  View Answer play_arrow

• question_answer108) The maximum number of possible optical isomers in l-bromo-2-methyl cydobutane is
  A)
   \[4\]             
  done clear
  B)
   \[2\]
  done clear
  C)
   \[8\]              
  done clear
  D)
   \[16\]
  done clear
  View Answer play_arrow

• question_answer109) Which one of the following is the most energetic conformation of cydohexane?
  A)
   Boat          
  done clear
  B)
   Twisted boat
  done clear
  C)
   Chair          
  done clear
  D)
   Half chair
  done clear
  View Answer play_arrow

• question_answer110) Which one of the following is an intermediate in the reaction of benzene with \[C{{H}_{3}}Cl\] in the presence of anhydrous \[AlC{{l}_{3}}\]?
  A)
   \[C{{l}^{-}}\]             
  done clear
  B)
   \[C{{H}_{3}}\]
  done clear
  C)
   \[CH_{3}^{+}\]           
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer111) Which one of the following is not true for the hydrolysis of t-butyl bromide with aqueous \[NaOH\]?
  A)
   Reaction occurs through the \[{{S}_{N}}1\] mechanism
  done clear
  B)
   The intermediate formed is a carbocation
  done clear
  C)
   Rate of the reaction doubles when the concentration of alkali is doubled
  done clear
  D)
   Rate of the reaction doubles when the concentration of t-butyl bromide is doubled
  done clear
  View Answer play_arrow

• question_answer112) Following is the substitution reaction which \[-CN\] replaces \[-Cl\]. \[R-Cl+\underset{(alcoholic)}{\mathop{KCN}}\,\xrightarrow[\Delta ]{}R-CN+KCl\] To obtain propanenitrile, \[R-Cl\] should be
  A)
   chloroethane    
  done clear
  B)
   1-chloropropane
  done clear
  C)
   chloromethane  
  done clear
  D)
   2-chloropropane
  done clear
  View Answer play_arrow

• question_answer113) The conversion of m-nitrophenol to resorcinol involves respectively
  A)
   hydrolysis, diazotization and reduction
  done clear
  B)
   diazotization, reduction and hydrolysis
  done clear
  C)
   hydrolysis, reduction and diazotization
  done clear
  D)
   reduction, diazotization and hydrolysis
  done clear
  View Answer play_arrow

• question_answer114) Formic acid is a stronger acid than acetic acid. This can be explained using
  A)
   \[+M\]effect       
  done clear
  B)
   \[-I\] effect
  done clear
  C)
   \[+I\] effect        
  done clear
  D)
   \[-M\] effect
  done clear
  View Answer play_arrow

• question_answer115) The reagent with which both acetaldehyde and acetone react is
  A)
   Fehlings solution
  done clear
  B)
   \[{{I}_{2}}/NaOH\]
  done clear
  C)
   Tollens reagent 
  done clear
  D)
   carbonic acid
  done clear
  View Answer play_arrow

• question_answer116) Which of the following gives an aldehyde on dry distillation?
  A)
   Calcium formate + calcium acetate
  done clear
  B)
   Calcium acetate + calcium benzoate
  done clear
  C)
   Calcium acetate
  done clear
  D)
   Calcium benzoate
  done clear
  View Answer play_arrow

• question_answer117) \[\alpha \]-maltose consists of
  A)
   one a-D-glucopyranose unit and one p-D-glucopyranose unit with 1-2 glycosidic linkage
  done clear
  B)
   two a-D-glucopyranose units with 1-2 glycosidic linkage
  done clear
  C)
   two P-D-glucopyranose units with 1-4 glycosidic linkage
  done clear
  D)
   two a-D-glucopyranose units with 1-4 glycosidic linkage
  done clear
  View Answer play_arrow

• question_answer118) Which one of the following does not correctly match with each other?
  A)
   Silk-polyamide  
  done clear
  B)
   Lipase-enzyme
  done clear
  C)
   Butter-fat       
  done clear
  D)
   Oxytocin-enzyme
  done clear
  View Answer play_arrow

• question_answer119) In an alkaline medium, glycine predominantly exists as/in a/an
  A)
   cation           
  done clear
  B)
   anion
  done clear
  C)
   Zwitterion     
  done clear
  D)
   covalentform
  done clear
  View Answer play_arrow

• question_answer120) The IUPAC name of  is
  A)
   but-3-enoic acid
  done clear
  B)
   but-1-enoic acid
  done clear
  C)
   pent-4-enoic acid
  done clear
  D)
   prop-2-enoic acid
  done clear
  View Answer play_arrow

• question_answer121) Four children belonging to the same parents have the following blood groups A, B, AB and Hence, the genotypes of the parents are
  A)
   both parents are homozygous for A group
  done clear
  B)
   one parent is homozygous for A and another parent is homozygous for B
  done clear
  C)
   one parent is heterozygous for A and another parent is heterozygous for B
  done clear
  D)
   Both parents are homozygous for B group
  done clear
  View Answer play_arrow

• question_answer122) Mitotic stages are not observed in
  A)
   Cosmarium
  done clear
  B)
   E. coli
  done clear
  C)
   Saccharomyces
  done clear
  D)
   Chlorella
  done clear
  View Answer play_arrow

• question_answer123) The types of ribosomes found in prokaryotic cells are
  A)
   100 S
  done clear
  B)
   80 S
  done clear
  C)
   60 S
  done clear
  D)
   70 S
  done clear
  View Answer play_arrow

• question_answer124) The name of Smt. Thimmakka is associated with the
  A)
   planting and conservation of avenue trees
  done clear
  B)
   agitations against hydroelectric projects
  done clear
  C)
   Appiko movement
  done clear
  D)
   conservation of fauna and flora of the western ghats
  done clear
  View Answer play_arrow

• question_answer125) Dog distemper is a disease carried by a
  A)
   bacterium
  done clear
  B)
   viroid
  done clear
  C)
   prion
  done clear
  D)
   virus
  done clear
  View Answer play_arrow

• question_answer126) When a fresh water protozan is placed in marine water the
  A)
   the contractile vacuole disappears
  done clear
  B)
   the contractile vacuole increases in size
  done clear
  C)
   a number of contractile vacuoles appear
  done clear
  D)
   the contractile vacuole remains unchanged
  done clear
  View Answer play_arrow

• question_answer127) The 2005 Nobel Prize for Physiology/Medicine was awarded to Barry Marshall and Robin Warren of Australia for their discovery of
  A)
   human papilloma virus causing cervical cancer
  done clear
  B)
   bacterium Helicobactor pylori causing peptic ulcer
  done clear
  C)
   prions, a new biological principle of infection
  done clear
  D)
   human immunodeficiency virus
  done clear
  View Answer play_arrow

• question_answer128) The following is the diagram of TS of anther. Identify the parts labelled as A, B and C.
  A)
   A - Connective, B - Endothecium,C - Pollen grain
  done clear
  B)
   A - Endothecium, B - Connective, C - Pollen grain
  done clear
  C)
   A - Pollen grain, B - Connective, C - Endothecium
  done clear
  D)
   A - Endothecium, B - Pollen grain, C - Connective
  done clear
  View Answer play_arrow

• question_answer129) Pick the mammal with true placenta.
  A)
   Kangaroo
  done clear
  B)
   Echidna
  done clear
  C)
   Platypus
  done clear
  D)
   Mongoose
  done clear
  View Answer play_arrow

• question_answer130) Which one of the following is correct?
  A)
   Introns are present in mRNA and exons are present in tRNA
  done clear
  B)
   Codons are present in mRNA and anticodons in t-RNA
  done clear
  C)
   Every intron is a set of three terminator codons
  done clear
  D)
   Exons are present in eukaryotes while introns are present in prokaryotes
  done clear
  View Answer play_arrow

• question_answer131) Casparian strips are present in the ......... of the root.
  A)
   epiblema
  done clear
  B)
   cortex
  done clear
  C)
   pericycle
  done clear
  D)
   endodermis
  done clear
  View Answer play_arrow

• question_answer132) How do you differentiate a frog from a toad?
  A)
   Frog has no exoskeleton but toad has scales
  done clear
  B)
   Frog respires through lungs but toad respires through skin
  done clear
  C)
   Frog has a tail but toad has no tail.
  done clear
  D)
   Frog has no parotid glands but toad has a pair of parotid glands
  done clear
  View Answer play_arrow

• question_answer133) Column I contains larval stages and Column II contains the group to which it belongs. Match them correctly and choose the right answer.

  Column I	Column II
  A. Planula	1. Annelida
  B. Tomaria	2. Mollusca
  C. Trochophore	3. Arthropoda
  D. Bipinnaria	4. Chordata
  E. Glochidium	5. Echinodermata
  	6. Coelenterata

  A)
    A-6      B-4      C-1    D- 5      E-2
  done clear
  B)
     A-2    B-3    C-1    D- 4    E-6
  done clear
  C)
     A-5    B-4    C-3    D- 2    E-1
  done clear
  D)
     A-4    B-3    C- 2    D- 1    E-5
  done clear
  View Answer play_arrow

• question_answer134) Read the following statements A and B.

  A: Many organs of aquatic plants float in water.

  B: Large air gaps are present in the collenchyma tissues of lotus leaf.

  Select the correct answer.
  A)
   Statement A is correct and B is wrong
  done clear
  B)
   Statement B is correct and A is wrong
  done clear
  C)
   Statements A and B are correct
  done clear
  D)
   Statements A and B are wrong
  done clear
  View Answer play_arrow

• question_answer135) Arrange the following in the ascending order of Linnaean hierarchy.
  A)
   Kingdom - Order - Species - Genus - Class- Family - Phylum
  done clear
  B)
   Kingdom - Family - Genus - Species - Class - Phylum - Order
  done clear
  C)
   Kingdom - Phylum - Class - Order - Family - Genus - Species
  done clear
  D)
   Species - Genus - Family - Order - Class - Phylum - Kingdom
  done clear
  View Answer play_arrow

• question_answer136) Animals which possess cleidoic eggs exhibit
  A)
   external   fertilization and internal development
  done clear
  B)
   internal   fertilization and internal development
  done clear
  C)
   internal   fertilization   and   external development
  done clear
  D)
   external   fertilization   and   external development
  done clear
  View Answer play_arrow

• question_answer137) The diagram given below represents the histology of a striped muscle. Label the parts A, B, C, D, E and F.
  A)
    A - Sarcoplasm, B - Nucleus, C - Sarcolemma, D - Myofibril, E - Dark band F - Light band
  done clear
  B)
    A - Sarcoplasm, B - Light band, C - Myofibril, D - Sarcolemma, E - Nucleus, F - Dark band
  done clear
  C)
    A - Light band, B - Sarcoplasm, C - Myofibril, D - Sarcolemma, E - Nucleus, F - Dark band
  done clear
  D)
    A - Sarcolemma, B - Nucleus, C - Dark band, D - Light band, E - Sarcoplasm, F - Myofibril
  done clear
  View Answer play_arrow

• question_answer138) Populations are said to be allopatric when
  A)
   they are physically isolated by natural barriers
  done clear
  B)
   they are sharing the same area but cannot interbreed
  done clear
  C)
   they live together and breed freely to produce viable offspring
  done clear
  D)
   they are isolated but often come together for breeding
  done clear
  View Answer play_arrow

• question_answer139) The World Intellectual Property Day is observed on
  A)
   February, 29th
  done clear
  B)
   June, 30th
  done clear
  C)
   April, 26th
  done clear
  D)
   September, 5th
  done clear
  View Answer play_arrow

• question_answer140) Which one of the following is an example of chlorophyllous thallophyte?
  A)
   Volvariella
  done clear
  B)
   Spirogyra
  done clear
  C)
   Nephrolepis
  done clear
  D)
   Gnetum
  done clear
  View Answer play_arrow

• question_answer141) Pinus belongs to the class
  A)
   Gnetopsida
  done clear
  B)
   Cycadopsida
  done clear
  C)
   Coniferopsida
  done clear
  D)
   Sphenopsida
  done clear
  View Answer play_arrow

• question_answer142) With reference to enzymes, which one of the following statements is true?
  A)
   Apoenzyme = Holoenzyme + Coenzyme
  done clear
  B)
   Holoenzyme = Apoenzyme + Coenzyme
  done clear
  C)
   Coenzyme = Apoenzyme + Holoenzyme
  done clear
  D)
   Holoenzyme = Coenzyme - Apoenzyme
  done clear
  View Answer play_arrow

• question_answer143) Gametophyte is the dominant phase in the life-cycle of
  A)
   Hibiscus
  done clear
  B)
   Nephrolepis
  done clear
  C)
   Cycos
  done clear
  D)
   Riccia
  done clear
  View Answer play_arrow

• question_answer144) In a tyical Mendelian cross, which is a dihybrid cross, one parent is homozygous for both dominant traits and another parent is homozygous for both recessive traits. In the F2 generation, both parental combinations and recombinations appear. The phenotypic ratio of parental combinations to recombinations is
  A)
   10 : 6
  done clear
  B)
   12 : 4
  done clear
  C)
   9 : 7
  done clear
  D)
   15 : 1
  done clear
  View Answer play_arrow

• question_answer145) A balanced diet does not include
  A)
   carbohydrates and fats
  done clear
  B)
   nucleic acids and enzymes
  done clear
  C)
   proteins and vitamins
  done clear
  D)
   minerals and salts
  done clear
  View Answer play_arrow

• question_answer146) Match the types of the fruits listed in Column I, with the examples listed in Column II. Choose the answer which gives the correct combination of the two columns.

  Column I	Column II
  A. Capsule	1. Paddy
  B. Berry	2. Mango
  C. Drupe	3. Sunflower
  D. Cypsela	4. Tomato
  	5. Ladies finger

      
  A)
   A- 5     B-4      C-2     D-3
  done clear
  B)
    A-5      B-3      C-1     D-2
  done clear
  C)
    A-4      B-5      C-2     D-3
  done clear
  D)
    A-1      B-2      C-3     D-5
  done clear
  View Answer play_arrow

• question_answer147) In genetic code, 61 codons code for 20 different types ofamino acids. This is called
  A)
   colinearity
  done clear
  B)
   commaless
  done clear
  C)
   degeneracy
  done clear
  D)
   non-ambiguity
  done clear
  View Answer play_arrow

• question_answer148) By the statement, survival of the fittest Darwin meant that
  A)
   the strongest of all species survives
  done clear
  B)
   the most intelligent of the species survives
  done clear
  C)
   the cleverest of the species survives
  done clear
  D)
   the most adaptable of the species to changes survives
  done clear
  View Answer play_arrow

• question_answer149) zhich one of the following plants is considered lesser known species of food crops?
  A)
   Psophocarpus tetragonolobus
  done clear
  B)
   Sorghum vulgaris
  done clear
  C)
   Eleusine coracana
  done clear
  D)
   Pennisetum typhoides
  done clear
  View Answer play_arrow

• question_answer150) When 2 to 3 drops of Benedicts reagent are  added to a urine sample and heated gently, it turns yellow. This colour change indicates that
  A)
   urine contains 2% glucose
  done clear
  B)
   urine contains 0.5% glucose
  done clear
  C)
   urine contains 1.5% glucose
  done clear
  D)
   urine contains 1% glucose
  done clear
  View Answer play_arrow

• question_answer151) Bt brinjal is an example of transgenic crops. In this, Bt refers to
  A)
   Bacillus tuberculosis
  done clear
  B)
   Biotechnology
  done clear
  C)
   Beta carotene
  done clear
  D)
   Bacillus thuringiensis
  done clear
  View Answer play_arrow

• question_answer152) Which one of the following is not an antitranspirant?
  A)
   PMA
  done clear
  B)
   BAP
  done clear
  C)
   Silicon oil
  done clear
  D)
   Low viscosity
  done clear
  View Answer play_arrow

• question_answer153) The brainstem is made up of
  A)
   midbrain, pons, cerebellum
  done clear
  B)
   midbrain, pons, medulla oblongata
  done clear
  C)
   forebrain, pons, cerebellum
  done clear
  D)
   cerebellum, cerebrum, medulla oblongata
  done clear
  View Answer play_arrow

• question_answer154) The loosely arranged non-chlorophyllous parenchyma cells present in lenticels are called
  A)
   complementary cells
  done clear
  B)
   passage cells
  done clear
  C)
   water stomata
  done clear
  D)
   albuminous cells
  done clear
  View Answer play_arrow

• question_answer155) Column I contains terms and Column II contains definitions. Match them correctly and choose the right answer.

  Column I	Column II
  A. Parturition	1.Attachment  of zygote to endometrium.
  B. Gestation	2. Release of egg from Graafian follicle.
  C. Ovulation	3. Delivery of baby from uterus.
  D. Implantation	4. Duration between pregnancy and birth.
  E. Conception	5. Formation of zygote by fusion of the egg and sperm.
  	6. Stoppage of ovulation and menstruation.

  A)
   A-2     B-4     C-1    D- 5     E-3
  done clear
  B)
   A-4    B-3    C-1    D-5    E-2
  done clear
  C)
   A-5     B-1     C-2   D- 3    E-4
  done clear
  D)
   A-3    B- 4     C-2    D- 1    E-5
  done clear
  View Answer play_arrow

• question_answer156) CAM pathway is observed in
  A)
   pineapple
  done clear
  B)
   maize
  done clear
  C)
   sunflower
  done clear
  D)
   sugarcane
  done clear
  View Answer play_arrow

• question_answer157) The number of ATP produced when a molecule of glucose undergoes fermentation is
  A)
   4
  done clear
  B)
   36
  done clear
  C)
   2
  done clear
  D)
   38
  done clear
  View Answer play_arrow

• question_answer158) Silk produced by Antheraea mylitta is also called
  A)
   muga silk
  done clear
  B)
   tassar silk
  done clear
  C)
   eri silk
  done clear
  D)
   Mysore silk
  done clear
  View Answer play_arrow

• question_answer159) Which of the following hormones is a steroid?
  A)
   Oestrogen
  done clear
  B)
   Insulin
  done clear
  C)
   Glucagon
  done clear
  D)
   Thyroxine
  done clear
  View Answer play_arrow

• question_answer160) More men suffer from colour blindness than women because
  A)
   women are more resistant to disease than men
  done clear
  B)
   the male sex hormone testosterone causes the disease
  done clear
  C)
   the colour blind gene is carried on the Y chromosome
  done clear
  D)
   men are hemizygous and one defective gene is enough to make them colour blind
  done clear
  View Answer play_arrow

• question_answer161) Which of the following theories on the origin of life is mostly accepted?
  A)
   Special creation
  done clear
  B)
   Steady state
  done clear
  C)
   Panspermia
  done clear
  D)
   Chemical origin
  done clear
  View Answer play_arrow

• question_answer162) The rosette habit of cabbage can be changed by application of
  A)
   IAA
  done clear
  B)
   GA
  done clear
  C)
   ABA
  done clear
  D)
   ethaphon
  done clear
  View Answer play_arrow

• question_answer163) Effective filtration pressure in glomerulus is caused due to
  A)
   powerful pumping action of the heart
  done clear
  B)
   secretion of adrenalin
  done clear
  C)
   afferent arteriole is slightly larger than efferent arteriole
  done clear
  D)
   vacuum develops in proximal convoluted tubule and sucks the blood
  done clear
  View Answer play_arrow

• question_answer164) Banana bunchy top virus is transmitted through
  A)
   Pentalonia nigronervosa
  done clear
  B)
   Aedes aegypti
  done clear
  C)
   Culexsp
  done clear
  D)
   Agrobacterium sp
  done clear
  View Answer play_arrow

• question_answer165) In a tissue culture media, the resource of the phytohormone is
  A)
   agar agar
  done clear
  B)
   glucose
  done clear
  C)
   micronutrients
  done clear
  D)
   coconut milk
  done clear
  View Answer play_arrow

• question_answer166) With reference to the pituitary, which of the following statements is true?
  A)
   Neurohypophysis secretes vasopressin and oxytocin
  done clear
  B)
   Neurohypophysis secretes TSH and STH,
  done clear
  C)
   Neurohypophysis collects and stores vasopressin and oxytocin
  done clear
  D)
   Adenohypophysis secretes vasopressin and oxytocin
  done clear
  View Answer play_arrow

• question_answer167) Column I contains some terms and Column II contains their meanings. Match them properly and choose the right answer.

  Column I	Column II
  A. Glycogenesis	1. Conversion of glycogen to glucose.
  B. Glycosuria	2. Conversion of glucose to glycogen.
  C. Glyconeogenesis	3. Excretion of glucose in urine.
  D. Glycogenolysis	4. Conversion of non-carbohydrate sources to glucose.
  	5. Conversion of glucose to starch.

  A)
     A -1      B-2      C-3     D-4
  done clear
  B)
     A -2     B-3     C-4     D-1
  done clear
  C)
     A -2      B- 1      C-3    D- 4
  done clear
  D)
     A -1     B- 5     C- 2      D-4
  done clear
  View Answer play_arrow

• question_answer168) The term genetic RNA refers to
  A)
   genetic material of RNA viruses
  done clear
  B)
   the RNA that carries genetic message
  done clear
  C)
   the RNA that helps gene regulation in lac-operon
  done clear
  D)
   the RNA present in mitochondria
  done clear
  View Answer play_arrow

• question_answer169) As per the guidelines of the Indian Red Cross Society, which of the following persons is recommended for blood donation?
  A)
   People not in good health, under the influence of alcohol or drugs
  done clear
  B)
   Ladies during menstruation, pregnancy and breast feeding
  done clear
  C)
   Heathy women but unwed and below the age of 35
  done clear
  D)
   Persons who are immunized with live vaccines
  done clear
  View Answer play_arrow

• question_answer170) In a typical heart, if EDV is 120 mL of blood and ESV is 50 mL of blood. The stroke volume (SV) is
  A)
   120 - 50 = 70 mL
  done clear
  B)
   120 + 50 = 170 mL
  done clear
  C)
   120 x 50 = 6000 mL
  done clear
  D)
   120 - 50 = 2.4 Ml
  done clear
  View Answer play_arrow

• question_answer171) The term southern blotting refers to
  A)
   transfer of DNA fragments from in vitro cellulose membrane to electrophoresis gel
  done clear
  B)
   attachment of probes to DNA fragments
  done clear
  C)
   transfer of DNA fragments  from electrophoresis gel to nitrocellulose sheet
  done clear
  D)
   comparison of DNA fragments from two sources
  done clear
  View Answer play_arrow

• question_answer172) In some chordates, the notochord is modified as the vertebral column, such animals are called vertebrates. Which of the following statements make sense?
  A)
   All chordates are vertebrates but all vertebrates are not chordates
  done clear
  B)
   All vertebrates are chordates and all chordates are vertebrates
  done clear
  C)
   All vertebrates are chordates but all chordates are not vertebrates
  done clear
  D)
   Chordates are not vertebrates and vertebrates are not chordates
  done clear
  View Answer play_arrow

• question_answer173) A clone is a group of
  A)
   genetically similar organisms produced through asexual reproduction
  done clear
  B)
   genetically similar organisms produced through sexual reproduction
  done clear
  C)
   dissimilar organisms produced as a result of asexual reproduction
  done clear
  D)
   genetically dissimilar organisms produced as a result of sexual reproduction
  done clear
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• question_answer174) The space between the plasma membrane and the cell wall of a plasmolyzed cell surrounded by a hypertonic solution is occupied by the
  A)
   hypotonic solution
  done clear
  B)
   isotonic solution
  done clear
  C)
   hypertonic solution
  done clear
  D)
   water
  done clear
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• question_answer175) When the blood contains a high percentage of \[C{{O}_{2}}\]and a very low percentage of\[{{O}_{2}}\], the breathing stops and the becomes unconcious. This condition is known as
  A)
   suffocation
  done clear
  B)
   asphyxia
  done clear
  C)
   emphycema
  done clear
  D)
   eupnoea
  done clear
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• question_answer176) Which one of the following in not related to guttation?
  A)
   Water is given out in the form of droplets
  done clear
  B)
   Water given out is impure
  done clear
  C)
   Water is given out during daytime
  done clear
  D)
   Guttation is of universal occurrence
  done clear
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• question_answer177) The force responsible for upward conduction of water against gravity comes from
  A)
   transpiration
  done clear
  B)
   photosynthesis
  done clear
  C)
   translocation
  done clear
  D)
   respiration
  done clear
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• question_answer178) Column I contains names of the sphinter muscles of the alimentary canal and Column II contains their locations. Match them properly and choose the correct answer.

  Column I	Column II
  A. Sphincter of ani internus	1. Opening of hepatopancrearic duct into duodenum.
  B. Cardiac sphincter	2. Between duodenum and posterior stomach.
  C. Sphincter of Oddi	3. Guarding the terminal part of alimentary canal.
  D. Ileocaecal sphincter	4. Between oesophagus and anterior stomach.
  E. Pyloric sphincter	5. Between small intestine and bowel.

  A)
  A-3     B-2     C-4     D-1     E-5
  done clear
  B)
  A-2     B-5     C-1     D-4     E-3
  done clear
  C)
  A-3      B-4      C-1     D-5     E-2
  done clear
  D)
   A-4     B-3     C-1     D-2     E-5
  done clear
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• question_answer179) Which one of the following reactions is an example of oxidative decarboxylation?
  A)
   Conversion of succinate to fumerate
  done clear
  B)
   Conversion of fumerate to malate
  done clear
  C)
   Conversion of pyruvate to acetyl Co-A
  done clear
  D)
   Conversion of citrate to isocitrate
  done clear
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• question_answer180) Chemiosmosis hypothesis given by Peter Mitchell proposes the mechanism of
  A)
   synthesis of NADH
  done clear
  B)
   synthesis of ATP
  done clear
  C)
   synthesis of FADH2
  done clear
  D)
   synthesis of NADPH
  done clear
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