Solved papers for CET Karnataka Medical CET - Karnataka Medical Solved Paper-2006

done CET - Karnataka Medical Solved Paper-2006 Total Questions - 180

• question_answer1) The twinkling effect of star light is due to:
  A)
  total internal reflection
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  B)
  high dense matter of star
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  C)
  constant burning of hydrogen in the star
  done clear
  D)
  the fluctuating apparent position of the star being slightly different from the actual position of the star
  done clear
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• question_answer2) The width of the diffraction band varies:
  A)
   inversely as the wavelength
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  B)
   directly as the width of the slit
  done clear
  C)
   directly as the distance between the slit and the screen
  done clear
  D)
   inversely as the size of the source from which the slit is illuminated
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• question_answer3) An unpolarised beam of intensity I0 is incident on a pair of nicols making an angle of 60° with each other. The intensity of light emerging from the pair is:
  A)
   \[{{I}_{0}}\]
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  B)
   \[{{I}_{0}}/2\]
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  C)
   \[{{I}_{0}}/4\]
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  D)
   \[{{I}_{0}}/8\]
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• question_answer4) Look at the graphs [a] to [d] carefully and indicate which of these possibly represents one dimensional motion of a particle?
  A)
    
  done clear
  B)
   
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  C)
    
  done clear
  D)
   
  done clear
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• question_answer5) A cyclist starts from the centre O of a circular park of radius 1 km, reaches the edge P of the park, then cycles along the circumference and returns to the centre along QO as shown in the figure. If the round trip takes 10 min, the net   displacement   and average speed of the cyclist (in metre and kilometre per hour) are:
  A)
   0,1
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  B)
   \[\frac{\pi +4}{2},0\]
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  C)
   \[21.4,\frac{\pi +4}{2}\]
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  D)
   \[0,21.4\]
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• question_answer6) When a low flying aircraft passes over head, we sometimes notice a slight shaking of the picture on our TV screen. This is due to:
  A)
   diffraction of the signal received from the antenna
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  B)
   interference of the direct signal received by the antenna with the weak signal reflected by the passing aircraft
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  C)
   change of magnetic flux occuring due to the passage of aircraft
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  D)
   vibration created by the passage of aircraft
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• question_answer7) A beam of light of wavelength 600 nm from a distant source falls on a single slit 1 mm wide and the resulting diffraction pattern is observed on a screen 2 m away. The distance between the first dark fringes on either side of the central bright fringe is:
  A)
   1.2 cm
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  B)
   1.2 mm
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  C)
   2.4 cm
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  D)
   2.4 mm
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• question_answer8) The physical quantity having the dimensions [\[{{\text{M}}^{\text{-1}}}{{\text{L}}^{\text{-3}}}{{\text{T}}^{\text{2}}}\]] is:
  A)
   resistance
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  B)
   resistivity
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  C)
   electrical conductivity
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  D)
   electromotive force
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• question_answer9) A battery of emf 10 V and internal resistance 3 n is connected to a resistor. The current in the circuit is 0.5 A. The terminal voltage of the battery when the circuit is closed is:
  A)
   10 V
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  B)
   0 V
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  C)
   1.5 V
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  D)
   8.5 V
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• question_answer10) A galvanometer coil has a resistance of 15\[\Omega \] and gives full scale deflection for a current of 4 mA. To convert it to an ammeter of range 0 to 6 A:
  A)
   10 m\[\Omega \] resistance is to be connected in parallel to the galvanometer
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  B)
   10 m\[\Omega \] resistance is to be connected in series with the galvanometer
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  C)
   0.1\[\Omega \] resistance is to be connected in parallel to the galvanometer
  done clear
  D)
   0.1\[\Omega \] resistance is to be connected in series with the galvanometer
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• question_answer11) The electron dirft speed is small and the charge of the electron is also small but still, we obtain large current in a conductor. This is due to:
  A)
   the conducting property of the conductor
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  B)
   the resistance of the conductor is small
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  C)
   the electron number density of the conductor is small
  done clear
  D)
   the electron number density of the conductor is enormous
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• question_answer12) A straight wire of mass 200 g and length 1.5 m carries a current of 2 A. It is suspended in mid-air by a uniform horizontal magnetic field B. The magnitude of B (in tesia) is: (assume\[g\text{ }=\text{ }9.8\text{ }m{{s}^{-2}}\])
  A)
   2
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  B)
   1.5
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  C)
   0.55
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  D)
   0.65
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• question_answer13) In the circuit shown the value of I m ampere is:
  A)
   1
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  B)
   0.60
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  C)
   0.4
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  D)
   1.5
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• question_answer14) A Gaussian sphere encloses an electric dipole within it. The total flux across the sphere is:
  A)
   zero
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  B)
   half that due to a single charge
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  C)
   double that due to a single charge
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  D)
   dependent on the position of the dipole
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• question_answer15) A parallel plate air capacitor has a capacitance C. When it is half filled with a dielectric of dielectric constant 5, the percentage increase in the capacitance will be:
  A)
   400 %
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  B)
   66.6 %
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  C)
   33.3 %
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  D)
   200 %
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• question_answer16) A comb run through ones dry hair attracts small bits of paper. This is due to:
  A)
   comb is a good conductor
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  B)
   paper is a good conductor
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  C)
   the atoms in the paper get polarised by the charged comb
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  D)
   the comb possesses magnetic properties
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• question_answer17) The top of the atmosphere is about 400 kV with respect to the surface of the earth, corresponding to an electric field that decreases with altitude. Near the surface of the earth, the field is about 100 Vm-1. Still, we do not get an electric shock as we step out of our house into the open house because: (assume the house to be a steel cage so that there is no field inside)
  A)
   there is a potential difference between our body and the ground
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  B)
   100 Vm-1 is not a high electric field so that we do not feel the shock
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  C)
   our body and the ground forms an equipotential surface
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  D)
   the dry atmosphere is not a conductor
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• question_answer18) The specific charge of a proton is 9.6 x 107 C kg-1. The specific charge of an alpha panicle will be:
  A)
   \[9.6\times {{10}^{7}}C\,\,k{{g}^{-1}}~~\]
  done clear
  B)
   \[19.2\times {{10}^{7}}C\text{ }k{{g}^{-1}}\]
  done clear
  C)
   \[4.8\times {{10}^{7}}C\text{ }k{{g}^{-1}}\]
  done clear
  D)
   \[2.4\times {{10}^{7}}C\text{ }k{{g}^{-1}}\]
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• question_answer19) When light of wavelength 300 nm falls on a photoelectric emitter, photoelectrons are liberated. For another emitter, light of wavelength 600 nm is sufficient for liberating photoelectrons. The ratio of the work function of the two emitters is:
  A)
   1 : 2
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  B)
   2 : 1
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  C)
   4 : 1
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  D)
   1 : 4
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• question_answer20) White light is passed through a dilute solution of potassium permanganate. The spectrum produced by the emergent light is:
  A)
   band emission spectrum
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  B)
   line emission spectrum
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  C)
   band absorption spectrum
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  D)
   line absorption spectrum
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• question_answer21) If \[{{\lambda }_{1}}\]and \[{{\lambda }_{2}}\]are the wavelengths of the first members of the Lyman and Paschen series respectively, then \[{{\lambda }_{1}}:{{\lambda }_{2}}\] is:
  A)
   1 : 3
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  B)
   1 : 30
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  C)
   7 : 50
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  D)
   7 : 108
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• question_answer22) Activity of a radioactive sample decreases to (1/ 3)rd 1 of its original value in 3 days. Then, in 9 days its activity will become:
  A)
   (1 / 27) of the original value
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  B)
   (1 / 9) of the original value
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  C)
   (1 / 18) of the original value
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  D)
   (1 / 3) of the original value
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• question_answer23) Identify the operation performed by the circuit given below:
  A)
   NOT
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  B)
   AND
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  C)
   OR
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  D)
   NAND
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• question_answer24) The working of which of the following is similar to that of a slide projector?
  A)
   Electron microscope
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  B)
   Scanning electron microscope
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  C)
   Transmission electron microscope
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  D)
   Atomic force microscope
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• question_answer25) In a transistor the collector current is always less than the emitter current because:
  A)
   collector side is reverse biased and the emitter side is forward biased
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  B)
   a few electrons are lost in the base and only remaining ones reach the collector
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  C)
   collector being reverse biased, attracts less electrons
  done clear
  D)
   collector side is forward biased and emitter side is reverse biased
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• question_answer26) A transparent cube of 0.21 m edge contains a small air bubble. Its apparent distance when viewed through one face of the cube is 0.10 m and when viewed from the opposite face is 0.04 m. The actual distance of the bubble from the second face of the cube is:
  A)
   0.06 m
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  B)
   0.17 m
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  C)
   0.05 m
  done clear
  D)
   0.04 m
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• question_answer27) White light is incident on one of the refracting surfaces of a prism of angle \[5{}^\circ \]. If the refractive indices for red and blue colours are 1.641 and 1.659 respectively, the angular separation between these two colours when they emerge out of the prism is:
  A)
  \[0.9{}^\circ \]
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  B)
   \[0.09{}^\circ \]
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  C)
  \[1.8{}^\circ \]
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  D)
   \[1.2{}^\circ \]
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• question_answer28) For a given lens, the magnification was found to be twice as large as when the object was 0.15 m distant from it as when the distance was 0.2 m. The focal length of the lens is:
  A)
   1.5 m
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  B)
   0.20 m
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  C)
   0.10 m
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  D)
   0.05 m
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• question_answer29) To a fish under water, viewing obliquely a fisherman standing or the bank of a lake, the man looks:
  A)
   taller than what he actually is
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  B)
   shorter that what he actually is
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  C)
   the same height as he actually is
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  D)
   depends on the obliquity
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• question_answer30) A thin prism \[{{P}_{1}}\]with angle \[4{}^\circ \] made from a glass of refractive index 1.54 is combined with another thin prism \[{{P}_{2}}\]made from glass of refractive index 1.72 to produce dispersion without deviation. The angle of the prism \[\,{{P}_{2}}\]is:
  A)
  \[5.33{}^\circ \]
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  B)
   \[4{}^\circ \]
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  C)
   \[3{}^\circ \]
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  D)
   \[2.6{}^\circ \]
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• question_answer31) If white light is used in the Newtons rings experiment, the colour observed in the reflected light is complementary to that observed in the transmitted light through the same point. This is due to:
  A)
   \[90{}^\circ \]change of phase in one of the reflected waves
  done clear
  B)
   \[180{}^\circ \]change of phase in one of the reflected waves
  done clear
  C)
   \[145{}^\circ \]change of phase in one of the reflected waves
  done clear
  D)
   \[45{}^\circ \]change of phase in one the reflected waves
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• question_answer32) Specific rotation of sugar solution is 0.5 deg m2/kg. 200 kgm-3 of impure sugar solution is taken in a sample polarimeter tube of length 20 cm and optical rotation is found to be \[19{}^\circ \].The percentage of purity of sugar is:
  A)
   20 %
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  B)
   80 %
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  C)
   95 %
  done clear
  D)
   89 %
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• question_answer33) A simple pendulum has a length I and the mass of the bob is m. The bob is given a charge q coulomb. The pendulum is suspended between the vertical plates of a charged parallel plate capacitor. If E is the electric field strength between the plates, the time period of the pendulum is given by:
  A)
   \[2\pi \sqrt{\frac{l}{g}}\]
  done clear
  B)
   \[2\pi \sqrt{\frac{l}{\sqrt{g+\frac{qE}{m}}}}\]
  done clear
  C)
   \[2\pi \sqrt{\frac{l}{\sqrt{g-\frac{qE}{m}}}}\]
  done clear
  D)
  \[2\pi \sqrt{\frac{l}{\sqrt{{{g}^{2}}+{{\left( \frac{qE}{m} \right)}^{2}}}}}\]
  done clear
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• question_answer34) A gang capacitor is formed by interlocking a number of plates as shown in figure. The distance between the consecutive plates is 0.885 cm and the Overlapping area of the 1111 plates is 5 cm2. The capacity of the unit is:
  A)
   1.06 pF
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  B)
   4 pF
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  C)
   6.36 pF
  done clear
  D)
   12.72 pF
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• question_answer35) A satellite in a circular orbit of radius R has a period of 4 h. Another satellite with orbital radius 3 R around the same planet will have a period (in hours):
  A)
   16
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  B)
   4
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  C)
   \[4\sqrt{27}\]
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  D)
   \[4\sqrt{8}\]
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• question_answer36) The freezer in a refrigerator is located at the top section so that:
  A)
   the entire chamber of the refrigerator is cooled quickly due to convection
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  B)
   the motor is not heated
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  C)
   the heat gained from the environment is high
  done clear
  D)
   the heat gained from the environment is low
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• question_answer37) The unit of Stefans constant is:
  A)
   \[\text{W}{{\text{m}}^{\text{-2}}}{{\text{K}}^{\text{-1}}}\]
  done clear
  B)
   \[\text{Wm }{{\text{K}}^{\text{-4}}}\]
  done clear
  C)
   \[\text{W}{{\text{m}}^{\text{-2}}}{{\text{K}}^{\text{-4}}}\]
  done clear
  D)
   \[\text{M}{{\text{m}}^{\text{-2}}}{{\text{K}}^{\text{-4}}}\]
  done clear
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• question_answer38) A monoatomic gas is suddenly compressed to (1/8)th of its initial volume adiabatically. The ratio of its final pressure to the initial pressure is: (Given the ratio of the specific heats of the given gas to be 5/3)
  A)
   32
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  B)
   40/3
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  C)
   24/5
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  D)
   8
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• question_answer39) A Carnot engine takes heat from a reservoir at \[627{}^\circ \text{ }C\]and rejects heat to a sink at\[27{}^\circ C\]. Its efficiency will be:
  A)
   3 / 5
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  B)
   1 / 3
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  C)
   2 / 3
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  D)
   200 / 209
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• question_answer40) A 30 V 90 W lamp is to be operated on a 120 V DC line. For proper glow, a resistor of...... \[\Omega \] should be connected in series with the lamp.
  A)
   40
  done clear
  B)
   10
  done clear
  C)
   20
  done clear
  D)
   30
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• question_answer41) A battery consists of a variable number (n) of identical cells, each having an internal resistance r connected in series. The terminals of the battery are short-circuited. A graph of current (I) in the circuit versus the number of cells will be as shown in figure:
  A)
          
  done clear
  B)
   
  done clear
  C)
      
  done clear
  D)
   
  done clear
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• question_answer42) A tuning fork A produces 4 beats/s with another tuning fork B of frequency 320 Hz. On filing one of the prongs of A, 4 beats/s are again heard when sounded with the same fork B. Then, the frequency of the fork A before filing is:
  A)
   328 Hz
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  B)
   316 Hz
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  C)
   324 Hz
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  D)
   320 Hz
  done clear
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• question_answer43) When the length of the vibrating segment of a sonometer wire is increased by 1%, the percentage change in its frequency is:
  A)
   \[\frac{100}{101}\]
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  B)
   \[\frac{99}{100}\]
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  C)
   \[1\]
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  D)
   2
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• question_answer44) The sprinkling of water reduces slightly the temperature of a closed room because:
  A)
   temperature of water is less than that of the room
  done clear
  B)
   specific heat of water is high
  done clear
  C)
   water has large latent heat of vaporization
  done clear
  D)
   water is a bad conductor of heat
  done clear
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• question_answer45) The equation of a simple harmonic wave is given by y = 5 sin \[\frac{\pi }{2}\] (100t - x), where x and y are in metre and time is in second. The period of the wave in second will be:
  A)
   0.04
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  B)
   0.01
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  C)
   1
  done clear
  D)
   5
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• question_answer46) The loudness and pitch of a sound note depends on:
  A)
   intensity and frequency
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  B)
   frequency and number of harmonics
  done clear
  C)
   intensity and velocity
  done clear
  D)
   frequency and velocity
  done clear
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• question_answer47) For ordinary terrestrial experiments, the observer in an inertial frame in the following cases is:
  A)
   a child revolving in a giant wheel
  done clear
  B)
   a driver in a sports car moving with a constant high speed of 200 kmh-1 on a straight rod
  done clear
  C)
   the pilot of an aeroplane which is taking off
  done clear
  D)
   a cyclist negotiating a sharp curve
  done clear
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• question_answer48) A rectangular vessel when full of water, takes 10 min to be emptied through an orifice in its bottom. How much time will it take to be emptied when half filled with water?
  A)
   9 min
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  B)
   7 min
  done clear
  C)
   5 min
  done clear
  D)
   3 min
  done clear
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• question_answer49) If there were no gravity, which of the following will not be there for a fluid?
  A)
   Viscosity
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  B)
   Surface tension
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  C)
   Pressure
  done clear
  D)
   Archimedes upward thrust
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• question_answer50) In a LCR series circuit, the potential difference between the terminals of the inductance is 60 Y between the terminals of the capacitor is 30 V and that across the resistance is 40 V. Then, supply voltage will be equal to:
  A)
   50 V
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  B)
   70 V
  done clear
  C)
   130 V
  done clear
  D)
   10 V
  done clear
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• question_answer51) When deuterium and helium are subjected to an accelerating field simultaneously then:
  A)
   both acquire same energy
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  B)
   deuterium accelerates faster
  done clear
  C)
   helium accelerates faster
  done clear
  D)
   neither of them is accelerated
  done clear
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• question_answer52) A solenoid 1.5 m long and 0.4 cm in diameter possesses 10 turns per cm length. A current of 5 A falls through it. The magnetic field at the axis inside the solenoid is:
  A)
   \[2\pi \times {{10}^{-3}}T\]
  done clear
  B)
   \[2~\pi \times {{10}^{-5}}T\]
  done clear
  C)
   \[4\pi \times {{10}^{-2}}T\]
  done clear
  D)
   \[4\pi \times {{10}^{-3}}T\]
  done clear
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• question_answer53) A wire PQR is bent as shown in figure and is placed in a region of uniform magnetic field B. The length of PQ = QR = I. A current I ampere flows through the wire as shown. The magnitude of the force on PQ and QR will be:
  A)
   BIl.0
  done clear
  B)
   2BIl.0
  done clear
  C)
   0, BIl
  done clear
  D)
   0, 0
  done clear
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• question_answer54) A choke is preferred to a resistance for limiting current in AC circuit because:
  A)
   choke is cheap
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  B)
   there is no wastage of power
  done clear
  C)
   choke is compact in size
  done clear
  D)
   choke is a good absorber of heat
  done clear
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• question_answer55) A current of 6 A enters one comer P of an equilateral triangle PQR having 3 wires of resistances 2 0 each and leaves by the corner R. Then the current I1 and I2 are:
  A)
   2 A, 4 A         
  done clear
  B)
   4 A, 2 A
  done clear
  C)
   I A, 2 A
  done clear
  D)
   2 A, 3 A
  done clear
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• question_answer56) To a germanium crystal equal number of aluminium and indium atoms are added. Then:
  A)
   it remains an intrinsic semiconductor
  done clear
  B)
   it becomes a n-type semiconductor
  done clear
  C)
   it becomes a p-type semiconductor
  done clear
  D)
   it becomes an insulator
  done clear
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• question_answer57) Maximum velocity of the photoelectrons emitted by a metal surface is\[1.2\times {{10}^{6}}m{{s}^{-1}}\]. Assuming the specific charge of the electron to be\[1.8\times {{10}^{11}}C\text{ }k{{g}^{-1}}\], the value of the stopping potential in volt will be:
  A)
   2
  done clear
  B)
   3
  done clear
  C)
   4
  done clear
  D)
   6
  done clear
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• question_answer58) Which of the following figures represents the variation of particle momentum and associated de-Broglie wavelength?
  A)
    
  done clear
  B)
   
  done clear
  C)
    
  done clear
  D)
   
  done clear
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• question_answer59) The term liquid crystal refers to a state that is intermediate between:
  A)
   crystalline solid and amorphous liquid
  done clear
  B)
   crystalline solid and vapour
  done clear
  C)
   amorphous liquid and its vapour
  done clear
  D)
   a crystal immersed in a liquid
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• question_answer60) If \[{{r}_{1}}\]and \[{{r}_{2}}\]are the radii of the atomic nuclei of mass numbers 64 and 125 respectively, then the ratio \[\left( {{r}_{1}}/{{r}_{2}} \right)\] is:
  A)
   \[\frac{64}{125}\]
  done clear
  B)
   \[\sqrt{\frac{64}{125}}\]
  done clear
  C)
   \[\frac{5}{4}\]  
  done clear
  D)
   \[\frac{4}{5}\]
  done clear
  View Answer play_arrow

• question_answer61) Which of the following is not an ore of magnesium?
  A)
   Carnallite      
  done clear
  B)
   Dolomite
  done clear
  C)
   Calamine      
  done clear
  D)
   Sea water
  done clear
  View Answer play_arrow

• question_answer62) The atomic number of \[Ni\] and \[Cu\] are 28 and 29 respectively. The electronic configuration. \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{d}^{10}}\] represents:
  A)
   \[C{{u}^{+}}\]          
  done clear
  B)
   \[C{{u}^{2+}}\]
  done clear
  C)
   \[N{{i}^{2+}}\]           
  done clear
  D)
   \[Ni\]
  done clear
  View Answer play_arrow

• question_answer63) In the following, the element with the highest ionisation energy is:
  A)
   \[\text{ }\!\![\!\!\text{ Ne }\!\!]\!\!\text{  }3{{s}^{2}}3{{p}^{1}}\]
  done clear
  B)
   \[\text{ }\!\![\!\!\text{ Ne }\!\!]\!\!\text{  }3{{s}^{2}}3{{p}^{3}}\]
  done clear
  C)
   \[\text{ }\!\![\!\!\text{ Ne }\!\!]\!\!\text{  }3{{s}^{2}}3{{p}^{2}}\]
  done clear
  D)
   \[\text{ }\!\![\!\!\text{ Ne }\!\!]\!\!\text{  }3{{s}^{2}}3{{p}^{4}}\]
  done clear
  View Answer play_arrow

• question_answer64) In the conversion of \[B{{r}_{2}}\] to \[BrO_{3}^{-}\], the oxidation number of \[Br\] changes from:
  A)
   zero to \[+5\]  
  done clear
  B)
   \[+1\] to \[+5\]
  done clear
  C)
   zero to \[-3\]     
  done clear
  D)
   \[+2\] to \[+5\]
  done clear
  View Answer play_arrow

• question_answer65) Among the alkali metals cesium is the most reactive because:
  A)
   its incomplete shell is nearest to the nucleus
  done clear
  B)
   it has a single electron in the valence shell
  done clear
  C)
   it is the heaviest alkali metal                  
  done clear
  D)
   the outermost electron is more loosely bound than the outermost electron of the other alkali metals    
  done clear
  View Answer play_arrow

• question_answer66)                      Which of the following represents the Lewis structure of \[{{N}_{2}}\] molecule?
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer67) Hydrogen bond is strongest in :
  A)
   \[S-H...O\]
  done clear
  B)
   \[O-H...S\]
  done clear
  C)
   \[F-H...F\]
  done clear
  D)
   \[O-H...N\]
  done clear
  View Answer play_arrow

• question_answer68) The decomposition of a certain mass of \[CaC{{O}_{3}}\] gave \[11.2\text{ }d{{m}^{3}}\]of \[C{{O}_{2}}\] gas at STP The mass of \[KOH\] required to completely neutralise the gas is:
  A)
   \[56g\]          
  done clear
  B)
   \[28g\]
  done clear
  C)
   \[42g\]          
  done clear
  D)
   \[20g\]
  done clear
  View Answer play_arrow

• question_answer69) The density of a gas is \[1.964g\text{ }d{{m}^{-3}}\]at \[273K\] and 76 cm \[Hg\]. The gas is:
  A)
   \[C{{H}_{4}}\]          
  done clear
  B)
   \[{{C}_{2}}{{H}_{6}}\]
  done clear
  C)
   \[C{{O}_{2}}\]          
  done clear
  D)
   \[Xe\]
  done clear
  View Answer play_arrow

• question_answer70) \[0.06mole\]of \[KN{{O}_{3}}\] solid is added to \[100c{{m}^{3}}\]of water at 298K. The enthalpy of \[KN{{O}_{3}}\]aqueous solution is \[35.8kJ\text{ m}o{{l}^{-1}}\]. After the solute is dissolved the temperature of the solution will be:
  A)
   \[293K\]         
  done clear
  B)
   \[298K\]
  done clear
  C)
   \[301K\]         
  done clear
  D)
   \[304K\]
  done clear
  View Answer play_arrow

• question_answer71) \[4moles\]each of \[S{{O}_{2}}\] and \[{{O}_{2}}\] gases are allowed to react to form \[S{{O}_{3}}\] in a closed vessel. At equilibrium 25% of \[{{O}_{2}}\] is used up. The total number of moles of all the gases at equilibrium is:
  A)
   \[6.5\]  
  done clear
  B)
   \[7.0\]
  done clear
  C)
   \[8.0\]
  done clear
  D)
   \[2.0\]
  done clear
  View Answer play_arrow

• question_answer72) An example for autocatalysis is:
  A)
   oxidation of \[NO\] to \[N{{O}_{3}}\]
  done clear
  B)
   oxidation of \[S{{O}_{2}}\] to \[S{{O}_{3}}\]
  done clear
  C)
   decomposition of \[KCl{{O}_{3}}\] to \[KCl\] and \[{{O}_{2}}\]
  done clear
  D)
   oxidation of oxalic acid by acidified \[KMn{{O}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer73) During the fusion of an organic compound with sodium metal, nitrogen of the compound is converted into:
  A)
   \[NaN{{O}_{2}}\]     
  done clear
  B)
   \[NaN{{H}_{2}}\]
  done clear
  C)
   \[NaCN\]        
  done clear
  D)
   \[NaNC\]
  done clear
  View Answer play_arrow

• question_answer74) Identify the product Y in the following reaction sequence:
  A)
   Pentane       
  done clear
  B)
   cyclobutane-
  done clear
  C)
   Cyclopentane   
  done clear
  D)
   Cyclopentanone
  done clear
  View Answer play_arrow

• question_answer75) The reaction \[{{C}_{2}}{{H}_{5}}ONa+{{C}_{2}}{{H}_{5}}I\to {{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\]\[+NaI\] is known as:
  A)
   Kolbes synthesis
  done clear
  B)
   Wurtzs synthesis
  done clear
  C)
   Williamsons synthesis
  done clear
  D)
   Grignards synthesis
  done clear
  View Answer play_arrow

• question_answer76) \[\Delta {{G}^{o}}\,vs\,\,\,T\]plot in the Ellinghams diagram slopes downwards for the reactions:
  A)
   \[Mg+\frac{1}{2}{{O}_{2}}\xrightarrow{{}}MgO\]
  done clear
  B)
   \[2Ag+\frac{1}{2}{{O}_{2}}\xrightarrow{{}}A{{g}_{2}}O\]
  done clear
  C)
   \[C+\frac{1}{2}{{O}_{2}}\xrightarrow{{}}CO\]
  done clear
  D)
   \[CO+\frac{1}{2}{{O}_{2}}\xrightarrow{{}}C{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer77) Which of the following taking place in the blast furnace is endothermic?
  A)
   \[CaC{{O}_{3}}\xrightarrow{{}}CaO+C{{O}_{2}}\]
  done clear
  B)
   \[2C+{{O}_{2}}\xrightarrow{{}}2CO\]
  done clear
  C)
   \[C+{{O}_{2}}\xrightarrow{{}}C{{O}_{2}}\]
  done clear
  D)
   \[F{{e}_{2}}{{O}_{3}}+3CO\xrightarrow{{}}2Fe+3C{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer78) Liquor ammonia bottles are opened only after cooling. This is because:
  A)
   it is a mild explosive
  done clear
  B)
   it is a corrosive liquid
  done clear
  C)
   it is a lachrymatory
  done clear
  D)
   it generates high vapour pressure
  done clear
  View Answer play_arrow

• question_answer79) The formation of \[O_{2}^{+}{{[Pt{{F}_{6}}]}^{-}}\] is the basis for the formation of xenon fluorides. This is because:
  A)
   \[{{O}_{2}}\] and \[Xe\] have comparable sizes
  done clear
  B)
   Both \[{{O}_{2}}\] and \[Xe\] are gases
  done clear
  C)
   \[{{O}_{2}}\] and \[Xe\] have comparable ionisation energies
  done clear
  D)
   \[{{O}_{2}}\] and \[Xe\] have comparable electro- negativities
  done clear
  View Answer play_arrow

• question_answer80) The highest magnetic moment is shown by the transition metal ion with the configuration:
  A)
  \[3{{d}^{2}}\]            
  done clear
  B)
   \[3{{d}^{5}}\]
  done clear
  C)
   \[3{{d}^{7}}\]            
  done clear
  D)
   \[3{{d}^{9}}\]
  done clear
  View Answer play_arrow

• question_answer81) A transition metal ion exists in its highest oxidation state. It is expected to behave as:
  A)
   a chelating agent
  done clear
  B)
   a central metal in a coordination compound
  done clear
  C)
   an oxidising agent
  done clear
  D)
   a reducing agent
  done clear
  View Answer play_arrow

• question_answer82) In which of the following complex ion, the central metal ion is in a state of \[s{{p}^{3}}{{d}^{2}}\] hybridisation?
  A)
   \[{{[Co{{F}_{6}}]}^{3-}}\]
  done clear
  B)
   \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{3+}}\]
  done clear
  C)
   \[{{[Fe{{(CN)}_{6}}]}^{3-}}\]
  done clear
  D)
   \[{{[Cr{{(N{{H}_{3}})}_{6}}]}^{3+}}\]
  done clear
  View Answer play_arrow

• question_answer83) Which of the following can participate in linkage isomerism?
  A)
   \[NO_{2}^{-}\]        
  done clear
  B)
   \[{{H}_{2}}\overset{\centerdot \centerdot }{\mathop{N}}\,C{{H}_{2}}C{{H}_{2}}\overset{\centerdot \centerdot }{\mathop{N}}\,{{H}_{2}}\]
  done clear
  C)
   \[{{H}_{2}}O\]     
  done clear
  D)
   \[_{\centerdot }^{\centerdot }N{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer84) Which of the following has the highest bond order?
  A)
   \[{{N}_{2}}\]             
  done clear
  B)
   \[{{O}_{2}}\]
  done clear
  C)
   \[H{{e}_{2}}\]            
  done clear
  D)
   \[{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer85) Which of the following is diamagnetic?
  A)
   \[H_{2}^{+}\]            
  done clear
  B)
   \[{{O}_{2}}\]
  done clear
  C)
   \[L{{i}_{2}}\]           
  done clear
  D)
   \[He_{2}^{+}\]
  done clear
  View Answer play_arrow

• question_answer86) The concentration of a reactant X decreases from \[0.1M\]to \[0.005M\]in 40 minute. If the reaction follows 1 order kinetics, the rate of the reaction when the concentration of X is \[0.01M\]will be:
  A)
   \[1.73\times {{10}^{-4}}\text{ }M\,mi{{n}^{-1}}\]
  done clear
  B)
   \[3.47\times {{10}^{-4}}\text{ }M\,mi{{n}^{-1}}\]
  done clear
  C)
   \[3.47\times {{10}^{-5}}\text{ }M\,mi{{n}^{-1}}\]
  done clear
  D)
   \[7.5\times {{10}^{-4}}\text{ }M\,mi{{n}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer87) Chemical reactions with very high \[{{E}_{a}}\] values are generally:
  A)
   very fast       
  done clear
  B)
   very slow
  done clear
  C)
   moderately fast
  done clear
  D)
   spontaneous
  done clear
  View Answer play_arrow

• question_answer88) Which of the following does not conduct electricity?
  A)
   \[Fused\text{ }NaCl\]
  done clear
  B)
   \[Solid\text{ }NaCl\]
  done clear
  C)
   Brine solution  
  done clear
  D)
   Copper
  done clear
  View Answer play_arrow

• question_answer89) When a quantity of electricity is passed through \[CuS{{O}_{4}}\]solution, \[0.16g\]of copper gets deposited. If the same quantity of electricity is passed through acidulated water, then the volume of \[{{H}_{2}}\] liberated at STP will be: [given: atomic weight of \[Cu=64\]]
  A)
   \[4.0c{{m}^{3}}\]       
  done clear
  B)
   \[56c{{m}^{3}}\]
  done clear
  C)
   \[604c{{m}^{3}}\]     
  done clear
  D)
   \[8.0c{{m}^{3}}\]
  done clear
  View Answer play_arrow

• question_answer90) Solubility product of a salt AS is \[1\times {{10}^{-8}}\text{ }{{M}^{2}}\]in a solution in which the concentration of \[{{A}^{+}}\] ions is  \[{{10}^{-3}}M\]. The salt will precipitate when the concentration of \[{{B}^{-}}\] ions is kept:
  A)
   between \[{{10}^{-8}}M\]to \[{{10}^{-7}}M\]
  done clear
  B)
   between \[{{10}^{-7}}M\] to \[{{10}^{-8}}M\]
  done clear
  C)
   \[>{{10}^{-5}}M\]
  done clear
  D)
   \[<{{10}^{-5}}M\]
  done clear
  View Answer play_arrow

• question_answer91) Which one of the following condition will increase the voltage of the cell represented by die equation? \[Cu(s)+2A{{g}^{+}}(aq)C{{u}^{2+}}(aq)+2Ag(s)\]
  A)
   Increase in the dimension of \[Cu\] electrode
  done clear
  B)
   Increase in the dimension of \[Ag\] electrode
  done clear
  C)
   Increase in the concentration of Curious
  done clear
  D)
   Increase in the concentration of \[A{{g}^{+}}\] ions
  done clear
  View Answer play_arrow

• question_answer92) The pH of \[{{10}^{-8}}M\text{ }HCl\]solution is:
  A)
   8
  done clear
  B)
   More than 8
  done clear
  C)
   Between 6 and 7
  done clear
  D)
   Slightly more than 7
  done clear
  View Answer play_arrow

• question_answer93) The mass of glucose that should be dissolved in \[50g\]of water in order to produce the same lowering of vapour pressure as is produced by dissolving \[1g\]of urea in the same quantity of water is:
  A)
   \[1g\]             
  done clear
  B)
   \[3g\]
  done clear
  C)
   \[6g\]            
  done clear
  D)
   \[18g\]
  done clear
  View Answer play_arrow

• question_answer94) Osmotic pressure observed when benzoic acid is dissolved in benzene is less than that expected from theoretical considerations. This is because:
  A)
   benzoic acid is an organic solute
  done clear
  B)
   benzoic acid has higher molar mass than benzene
  done clear
  C)
   benzoic acid gets assoicated in benzene
  done clear
  D)
   benzoic acid gets dissociated in benzene
  done clear
  View Answer play_arrow

• question_answer95) For a reaction to be spontaneous at all temperatures:
  A)
   \[\Delta G\] and \[\Delta H\] should be negative
  done clear
  B)
   \[\Delta G\] and \[\Delta H\] should be positive
  done clear
  C)
   \[\Delta G=\Delta S=0\]
  done clear
  D)
   \[\Delta H<\Delta G\]
  done clear
  View Answer play_arrow

• question_answer96) Which of the following electrolyte will have maximum flocculation value for \[Fe{{(OH)}^{3}}\]sol?
  A)
   \[NaCl\]         
  done clear
  B)
   \[N{{a}_{2}}S\]
  done clear
  C)
   \[{{(N{{H}_{4}})}_{3}}P{{O}_{4}}\]
  done clear
  D)
   \[{{K}_{2}}S{{O}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer97) For a reversible reaction: \[X(g)+3Y(g)2Z(g);\] \[\Delta H=-40kJ\] The standard entropies of X, Y and Z are 60, 40 and \[50~J{{K}^{-1\text{ }}}mo{{l}^{-1}}\]respectively.  The temperature at which the above reaction attains equilibrium is about:
  A)
   \[400K\]         
  done clear
  B)
   \[500K\]
  done clear
  C)
   \[273K\]
  done clear
  D)
   \[373K\]
  done clear
  View Answer play_arrow

• question_answer98) The radii of \[N{{a}^{+}}\] and \[C{{l}^{-}}\] ions are 95 pm and 181 pm respectively. The edge length of \[NaCl\]unit cell is:
  A)
   \[276pm\]      
  done clear
  B)
   \[138pm\]
  done clear
  C)
   \[552pm\]     
  done clear
  D)
   \[415pm\]
  done clear
  View Answer play_arrow

• question_answer99) Inductive effect involves:
  A)
   Displacement of \[\sigma \]-electrons
  done clear
  B)
   Delocalisation of \[\pi \]-electrons
  done clear
  C)
   Delocalisation of \[\sigma \]-electrons
  done clear
  D)
   Displacement of \[\pi \]-electrons
  done clear
  View Answer play_arrow

• question_answer100) The basicity of aniline is less than that of cyclohexylamine. This is due to:
  A)
   \[+R-effect\]of \[-N{{H}_{2}}\] group
  done clear
  B)
   \[-I\,effect\] of  \[-N{{H}_{2}}\] group
  done clear
  C)
   \[-\operatorname{Re}\,effect\]of \[-N{{H}_{2}}\] group
  done clear
  D)
   hyper conjugation effect
  done clear
  View Answer play_arrow

• question_answer101) Methyl bromide is converted into ethane by heating it in ether medium with:
  A)
   \[Al\]             
  done clear
  B)
   \[Zn\]
  done clear
  C)
   \[Na\]            
  done clear
  D)
   \[Cu\]
  done clear
  View Answer play_arrow

• question_answer102) Which of the following compound is expected to be optically active?
  A)
   \[{{(C{{H}_{3}})}_{2}}CHCHO\]
  done clear
  B)
   \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}CHO\]
  done clear
  C)
   \[C{{H}_{3}}C{{H}_{2}}CHBrCHO\]
  done clear
  D)
   \[C{{H}_{3}}C{{H}_{2}}CB{{r}_{2}}CHO\]
  done clear
  View Answer play_arrow

• question_answer103) Which cycloalkane has the lowest heat of combustion per \[C{{H}_{2}}\] group?
  A)
   Cyclopropane  
  done clear
  B)
   Cyclobutane
  done clear
  C)
   Cyclopentane 
  done clear
  D)
   Cyclohexane
  done clear
  View Answer play_arrow

• question_answer104) The catalyst used in the preparation of an alkyl chloride by the action of dry \[HCl\] on an alcohol is:
  A)
   anhydrous \[AlC{{l}_{3}}\]
  done clear
  B)
   \[FeC{{l}_{3}}\]
  done clear
  C)
   anyhydrous \[ZnC{{l}_{2}}\]
  done clear
  D)
   \[Cu\]
  done clear
  View Answer play_arrow

• question_answer105) In the reaction, \[R-X\xrightarrow{alcoholic\,KCN}A\xrightarrow{dilute\,HCl}B\] The product B is:
  A)
   alkyi chloride   
  done clear
  B)
   aldehyde
  done clear
  C)
   carboxyiic acid 
  done clear
  D)
   ketone
  done clear
  View Answer play_arrow

• question_answer106) Which of the following compound would not evolve \[C{{O}_{2}}\] when treated with \[NaHC{{O}_{3}}\]solution?
  A)
   Salicylic acid
  done clear
  B)
   Phenol
  done clear
  C)
   Benzoic acid
  done clear
  D)
   4-nitrobenzoic acid
  done clear
  View Answer play_arrow

• question_answer107) By heating phenol with chloroform in alkyl, it is converted into:
  A)
   Salicylic acid    
  done clear
  B)
   Salicylaldehyde
  done clear
  C)
   Anisole         
  done clear
  D)
   Phenyl benzoate
  done clear
  View Answer play_arrow

• question_answer108) When a mixture of calcium benzoate and calcium acetate is dry distilled, the resulting compound is:
  A)
   Acetophenone
  done clear
  B)
   Benzaldehyde
  done clear
  C)
   Benzophenone
  done clear
  D)
   Acetaldehyde
  done clear
  View Answer play_arrow

• question_answer109) Which of the following does not give benzoic acid on hydrolysis?
  A)
   Phenyl cyanide
  done clear
  B)
   Benzoyl chloride
  done clear
  C)
   Benzyl chloride
  done clear
  D)
   Methyl benzoate
  done clear
  View Answer play_arrow

• question_answer110) Which of the following would undergo Hofmann reaction to give a primary amine?
  A)
   \[R-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-Cl\]
  done clear
  B)
   \[RCONHC{{H}_{3}}\]
  done clear
  C)
   \[RCON{{H}_{2}}\]
  done clear
  D)
   \[RCOOR\]
  done clear
  View Answer play_arrow

• question_answer111) Glucose contains in addition to aldehyde group:
  A)
   one secondary \[OH\] and four primary \[OH\]groups
  done clear
  B)
   one primary \[OH\] and four secondary \[OH\]groups
  done clear
  C)
   two primary \[OH\] and three secondary \[OH\]groups
  done clear
  D)
   three primary \[OH\] and two secondary \[OH\] groups
  done clear
  View Answer play_arrow

• question_answer112) A distinctive and characteristic functional group of fats is
  A)
   apeptide group  
  done clear
  B)
   an ester group
  done clear
  C)
   an alcoholic group
  done clear
  D)
   a ketonic group
  done clear
  View Answer play_arrow

• question_answer113) At pH = 4, glycine exists as:
  A)
   \[{{H}_{3}}N-C{{H}_{2}}-CO{{O}^{-}}\]
  done clear
  B)
   \[{{H}_{3}}N-C{{H}_{2}}-COOH\]
  done clear
  C)
   \[{{H}_{2}}N-C{{H}_{2}}-COOH\]
  done clear
  D)
   \[{{H}_{2}}N-C{{H}_{2}}-CO{{O}^{-}}\]
  done clear
  View Answer play_arrow

• question_answer114) Insulin regulates the metabolism of:
  A)
   minerals       
  done clear
  B)
   ammo acids
  done clear
  C)
   glucose        
  done clear
  D)
   vitamins
  done clear
  View Answer play_arrow

• question_answer115) The formula mass of Mohrs salt is 392. The iron present in it is oxidised by \[KMn{{O}_{4}}\]in acid medium. The equivalent mass of Mbhrs salt is:
  A)
   \[392\]         
  done clear
  B)
   \[31.6\]
  done clear
  C)
   \[278\]      
  done clear
  D)
   \[156\]
  done clear
  View Answer play_arrow

• question_answer116) The brown ring test for nitrates depends on:
  A)
   The reduction of nitrate to nitric oxide
  done clear
  B)
   oxidation of nitric oxide to nitrogen dioxide
  done clear
  C)
   reduction of ferrous sulphate to iron
  done clear
  D)
   oxidising action of sulphuric acid
  done clear
  View Answer play_arrow

• question_answer117) Acrolein  test is positive for:
  A)
   Polysaccharides
  done clear
  B)
   proten
  done clear
  C)
   oils and fats
  done clear
  D)
   reducing sugars
  done clear
  View Answer play_arrow

• question_answer118) An organic compound which produces a bluish green colored flame on heating in presence of copper is:
  A)
   chlorobenzene
  done clear
  B)
   benzaldenhyde
  done clear
  C)
   aniline
  done clear
  D)
   benzoic acid
  done clear
  View Answer play_arrow

• question_answer119)  For a reaction \[A+B\xrightarrow{{}}C+D\] if the concentration of A is doubled without altering the concentration of B, the rate gas doubled. If the concentration of B is increased by nine times without altering the concentration of A, the rate gets tripled. The order of the reaction is:
  A)
   \[2\]
  done clear
  B)
   \[1\]
  done clear
  C)
   \[3/2\]
  done clear
  D)
   \[4/3\]
  done clear
  View Answer play_arrow

• question_answer120) Which of the following solutions will exhibit highest boiling point?
  A)
   \[0.01M\,N{{a}_{2}}S{{O}_{4}}(aq)\]
  done clear
  B)
   \[0.01M\,KN{{O}_{3}}(aq)\]
  done clear
  C)
   \[0.015M\] urea (aq)
  done clear
  D)
   \[0.015M\]glucose (aq)
  done clear
  View Answer play_arrow

• question_answer121) Which of the following hormones are produced in the hypothalamus and stored in the posterior pituitary?
  A)
   FSH and LH    
  done clear
  B)
   ADH and oxytocin
  done clear
  C)
   TSH and STH   
  done clear
  D)
   ACTH and MSH
  done clear
  View Answer play_arrow

• question_answer122) Two pea plants were subjected cross pollination. Of the 183 plants produced in the next generation, 94 plants were found to be tall and 89 plants were found to be dwarf. The genotypes of the two parental plants are likely to be:
  A)
   TT and tt      
  done clear
  B)
   Tt and Tt
  done clear
  C)
   Tt and tt       
  done clear
  D)
   TT and TT
  done clear
  View Answer play_arrow

• question_answer123) Monoclonal antibodies are produced from hybrid cells, called hybridomas. The cells employed to obtain these hybridoma cells, are:
  A)
   B - lymphocytes and myeloma cells
  done clear
  B)
   lymphoma cells and bone marrow cells
  done clear
  C)
   T - lymphocytes and myeloma cells
  done clear
  D)
   B - lymphocytes and carcinoma cells
  done clear
  View Answer play_arrow

• question_answer124) Read the two statements A and B Statement A: Diversity observed in the entire geographical area, is called gamma diversity. Statement B: Biodiversity decreases from high altitude to low altitude. Identify the correct choice from those given below:
  A)
   statement A is correct, B is wrong
  done clear
  B)
   statement B is correct, A is wrong
  done clear
  C)
   both the statements A and B are correct
  done clear
  D)
   both the statements A and B are wrong
  done clear
  View Answer play_arrow

• question_answer125) The major event that occurs during the anaphase of mitosis, which brings about the equal distribution of chromosomes, is:
  A)
   replication of the genetic material
  done clear
  B)
   splitting of the chromatids
  done clear
  C)
   splitting of the centromeres
  done clear
  D)
   condensation of the chromatin
  done clear
  View Answer play_arrow

• question_answer126) In the synthesis of which of the following, the DNA molecule is not directly involved?
  A)
   m-RNA molecule
  done clear
  B)
   Protein molecule
  done clear
  C)
   Another DNA molecule
  done clear
  D)
   t-RNA molecule
  done clear
  View Answer play_arrow

• question_answer127) Chloroplasts without grana are known to occur in:
  A)
   bundle sheath cells of \[{{C}_{3}}\]plants
  done clear
  B)
   mesophyll cells of \[{{C}_{4}}\]plants
  done clear
  C)
   bundle sheath cells of \[{{C}_{4}}\] plants
  done clear
  D)
   mesophyll cells of all plants
  done clear
  View Answer play_arrow

• question_answer128) The main function of lacteals in the human small intestine is the absorption of:
  A)
   glucose and vitamins
  done clear
  B)
   amino acids and glucose
  done clear
  C)
   water and vitamins
  done clear
  D)
   fatty acids and glycerol
  done clear
  View Answer play_arrow

• question_answer129) The following diagrams show the types of secondary thickenings in the xylem vessels. Identify the types labelled from A to F. Choose the correct option from those given:
  A)
   A = spiral, B = annular, C = reticulate, D = scalariform, E = pitted with border, P = pitted, simple
  done clear
  B)
   A = annular, B = spiral, C = scalariform, D = reticulate, E = pitted with border, F = pitted, simple
  done clear
  C)
   A = annular, B = spiral, C = scalariform, D = reticulate, E = pitted, simple, F = pitted with border
  done clear
  D)
   A = spiral, B = annular, C = scalariform, D = reticulate, E = pitted with border, F = pitted, simple
  done clear
  View Answer play_arrow

• question_answer130) About 1000 ml of air is always known to remain inside the human lungs. It is described as.........
  A)
   inspiratory reserve volume
  done clear
  B)
   expiratory reserve volume
  done clear
  C)
   residual volume
  done clear
  D)
   tidal volume
  done clear
  View Answer play_arrow

• question_answer131) The chemical nature of gibberellins is that they are:
  A)
   acidic          
  done clear
  B)
   alkaline
  done clear
  C)
   proteinaceous
  done clear
  D)
   amines
  done clear
  View Answer play_arrow

• question_answer132) The unit of natural selection is:
  A)
   an individual   
  done clear
  B)
   a species
  done clear
  C)
   a genus        
  done clear
  D)
   a population
  done clear
  View Answer play_arrow

• question_answer133) Water is lost in a liquid state in some plants through hydathods. These hydathodes
  A)
   remain closed at night
  done clear
  B)
   remain closed during day
  done clear
  C)
   remain always open
  done clear
  D)
   do not show any specificity in opening and closing
  done clear
  View Answer play_arrow

• question_answer134) Which of the following are secretions produced by the spermatozoa at the time of fertilization?
  A)
   Fertilizin and antifertilizin
  done clear
  B)
   Antifertilizin and spermlysin
  done clear
  C)
   Fertilizin and spermlysin
  done clear
  D)
   Only spermlysin
  done clear
  View Answer play_arrow

• question_answer135) Cells obtained from an organism were homogenised and centrifuged. A test indicated that the cells contained glycogen. If you were asked to find out as quickly as possible whether the cells were from a plant or an animal, you would:
  A)
   examine the centrifuge for the presence of extracts of chloroplasts
  done clear
  B)
   answer immediately that the cells were from a plant source
  done clear
  C)
   examine the centrifuge for the presence of extracts of centrioles
  done clear
  D)
   answer immediately that the cells were from an animal source
  done clear
  View Answer play_arrow

• question_answer136) Which of the following plant parts can respire even in the absence of oxygen?
  A)
   seeds           
  done clear
  B)
   roots
  done clear
  C)
   stems          
  done clear
  D)
   leaves
  done clear
  View Answer play_arrow

• question_answer137) Column I lists some disorder associated with brain. Column II lists the causes for these disorders. Match the two columns and identify the correct option from those given

  	Column I		Column II
  A.	Epilepsy	1.	Degeneration of neurons in the cerebral cortex
  B.	Alzheimers disease	2.	Irregular electrical discharge in the neurons
  C. D.	Parkinsons disease Huntingtons chorea	3. 4.	Decreased production of acetylcholine Regeneration of  dopamine releasing neurons
  		5.	Formation of blood clots in the brain

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

• question_answer138) The world biodiversity day is celebrated annually on:
  A)
   5th June       
  done clear
  B)
   29th December
  done clear
  C)
   22nd April     
  done clear
  D)
   16th September
  done clear
  View Answer play_arrow

• question_answer139) The sequence of nitrogen bases in a particular region of the non-coding strand of a DNA molecule was found to be CAT GTT TAT CGC. What would be the sequence of nitrogen bases in the mRNA that is synthesized by the corresponding region of the coding strand in that DNA?
  A)
   GUACAAAUAGCC
  done clear
  B)
   GTACAAATAGCC
  done clear
  C)
   CAUGUUUAUCGC
  done clear
  D)
   CAAGAATAUGCC
  done clear
  View Answer play_arrow

• question_answer140) Almost all the aquatic animals excrete ammonia as the nitrogenous waste product. Which of the following statement is not in agreement with this situation?
  A)
   Ammonia is easily soluble in water
  done clear
  B)
   Ammonia is released from the body in a gaseous state
  done clear
  C)
   Ammonia is highly toxic and needs to be eliminated as and when formed
  done clear
  D)
   Ammonia gets converted into a less toxic form called urea
  done clear
  View Answer play_arrow

• question_answer141) In nature, cleistogamous flowers are:
  A)
   self pollinated  
  done clear
  B)
   insect pollinated
  done clear
  C)
   wind pollinated
  done clear
  D)
   bird pollinated
  done clear
  View Answer play_arrow

• question_answer142) In the homeostatic control of blood sugar level, which organs function respectively as modulator and effector?
  A)
   Liver and islets of Langerhans
  done clear
  B)
   Hypothalamus and liver
  done clear
  C)
   Hypothalamus and islets of langerhans
  done clear
  D)
   Islets of langerhans and hypothalamus
  done clear
  View Answer play_arrow

• question_answer143) Variable number of tandem repeats (VNTRs) in the DNA molecule are highly useful in:
  A)
   recombinant DNA technology
  done clear
  B)
   DNA finger printing
  done clear
  C)
   monoclonal antibody production
  done clear
  D)
   stem cell culture
  done clear
  View Answer play_arrow

• question_answer144) Which of the following represents a condition where the motility of the sperms is highly reduced?
  A)
   Oligospermia   
  done clear
  B)
   Athenospermia
  done clear
  C)
   Azoospermia    
  done clear
  D)
   Polyspermy
  done clear
  View Answer play_arrow

• question_answer145) Identify from the following, the only taxonomic category that has a real existence:
  A)
   genus         
  done clear
  B)
   species
  done clear
  C)
   phylum        
  done clear
  D)
   kingdom
  done clear
  View Answer play_arrow

• question_answer146) Which of the following is used as an antitranspirant?
  A)
   Cobalt chloride
  done clear
  B)
   Naphthol acetic acid
  done clear
  C)
   Calcium carbonate
  done clear
  D)
   Phenyl mercuric acetate
  done clear
  View Answer play_arrow

• question_answer147) Maximum amount of oxygen is lost from the blood in the:
  A)
   capillaries surrounding the tissue cells
  done clear
  B)
   arteries of the body
  done clear
  C)
   capillaries surrounding the alveoli
  done clear
  D)
   left auricle of the heart
  done clear
  View Answer play_arrow

• question_answer148) In which of the following disorders, blood has a defective haemoglobin?
  A)
   Haemophilia
  done clear
  B)
   Haematuria
  done clear
  C)
   Haematoma
  done clear
  D)
   Sickle cell anaemia
  done clear
  View Answer play_arrow

• question_answer149) The common point of attachment of all the arms of polytene chromosomes, is known as:
  A)
   chromomere   
  done clear
  B)
   centromere
  done clear
  C)
   chromocentre  
  done clear
  D)
   centrosome
  done clear
  View Answer play_arrow

• question_answer150) The following is a scheme showing the fate of carbohydrates during digestion in the human alimentary canal. Identify the enzymes acting at stages indicated as A, B, C and D. Choose the correct option from those given:
  A)
   A = amylase, B = maltase, C = lactase, D = invertase
  done clear
  B)
   A = amylase, B = Maltase, C = invertase, D = lactase
  done clear
  C)
   A = amylase, B = invertase, C = maltase, D = lactase
  done clear
  D)
   A = amylase, B = lactase, C = maltase, D = invertase
  done clear
  View Answer play_arrow

• question_answer151) As secondary growth proceeds, in a dicot stem, the thickness of:
  A)
   sapwood increases
  done clear
  B)
   heartwood increases
  done clear
  C)
   both sapwood and heartwood increases
  done clear
  D)
   both sapwood and heartwood remains the same
  done clear
  View Answer play_arrow

• question_answer152) Which of the following animal can successfully reproduce without utilizing the process of mitosis?
  A)
   Amoeba       
  done clear
  B)
   Hydra
  done clear
  C)
   Tapeworm     
  done clear
  D)
   Sycon
  done clear
  View Answer play_arrow

• question_answer153) The synthesis of one molecule of glucose during Calvin cycle requires
  A)
   12 molecules of ATP and 18 molecules of \[NADP{{H}_{2}}\]
  done clear
  B)
   6 molecules of ATP and 12 molecules of \[NADP{{H}_{2}}\]
  done clear
  C)
   18 molecules of ATP and 12 molecules of \[NADP{{H}_{2}}\]
  done clear
  D)
   12 molecules each of ATP and \[NADP{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer154) Which of the following was likely to have been absent in a free molecular state, in the primitive atmosphere of the earth?
  A)
   Carbon        
  done clear
  B)
   Oxygen
  done clear
  C)
   Hydrogen      
  done clear
  D)
   Nitrogen
  done clear
  View Answer play_arrow

• question_answer155) In the members of family Malvaceae, anthers are described as:
  A)
   diadelphous and dithecous
  done clear
  B)
   diadelphous and monothecous
  done clear
  C)
   monadelphous and dithecous
  done clear
  D)
   monadelphous and monothecous
  done clear
  View Answer play_arrow

• question_answer156) In the operon system, the represser protein can bind only with the:
  A)
   structural genes
  done clear
  B)
   regulator gene
  done clear
  C)
   operator gene  
  done clear
  D)
   promoter gene
  done clear
  View Answer play_arrow

• question_answer157) The following is a diagram of the just spawned frogs egg; with the parts labelled from A to E. Identify the parts and choose the correct option from those given below.
  A)
   A = cytoplasm, B = plasma membrane, C = vitelline membrane, D = yolk, E = jelly coat
  done clear
  B)
   A = cytoplasm, B = vitelline membrane, C = plasma membrane, D = Yolk, E = Jelly coat
  done clear
  C)
   A = yolk, B = plasma membrane, C = vitelline membrane, D = cytoplasm, E = jelly coat
  done clear
  D)
   A = yolk, B = jelly coat, C = vitelline membrane, D = cytoplasm, E = plasma membrane
  done clear
  View Answer play_arrow

• question_answer158) The rate of transpiration will be very less in a situation where:
  A)
   ground water is sufficiently available
  done clear
  B)
   wind is blowing with a very high velocity
  done clear
  C)
   environment is very hot and dry
  done clear
  D)
   relative humidity is very high
  done clear
  View Answer play_arrow

• question_answer159) Column I lists the components of body defense and column II lists the corresponding descriptions. Match the two columns. Choose the correct option from those given:

  	Column - I		Column - II
  A.	Active natural immunity	1.	Injection of gamma globulins
  B.	First line of defense	2.	Complement proteins and interferons
  C.	Passive natural immunity	3.	Direct    contact with the pathogens   that have entered inside
  D.	Second line of defense	4.	Surface barriers
  		5.	Antibodies transferred through the placenta

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

• question_answer160) Which of die following is not an influence of auxins?
  A)
   apical dominance
  done clear
  B)
   parthenocarpy
  done clear
  C)
   tropic movements
  done clear
  D)
   bolting
  done clear
  View Answer play_arrow

• question_answer161) How many double circulations are normally completed by the human heart, in one minute?
  A)
   eight          
  done clear
  B)
   sixteen
  done clear
  C)
   seventy two    
  done clear
  D)
   thirty six
  done clear
  View Answer play_arrow

• question_answer162) Casparian thickening are found in the cells of:
  A)
   pericycle of the root
  done clear
  B)
   endodermis of the root
  done clear
  C)
   pericycle of the stem
  done clear
  D)
   endodermis of the stem
  done clear
  View Answer play_arrow

• question_answer163) Botli photosynthesis and respiration required:
  A)
   mitochondria  
  done clear
  B)
   sunlight
  done clear
  C)
   chloroplasts    
  done clear
  D)
   cytochromes
  done clear
  View Answer play_arrow

• question_answer164) Which of the following regions of our country are known for their rich biodiversity?
  A)
   Western ghats and Eastern Himalayas
  done clear
  B)
   Western ghats and deccan plateau
  done clear
  C)
   Eastern himalayas and gangetic plane
  done clear
  D)
   Trans himalayas and deccan peninsula
  done clear
  View Answer play_arrow

• question_answer165) Restriction endonucleases are most widely used in recombinant DNA technology. They are obtained from:
  A)
   bacteriophages
  done clear
  B)
   bacterial cells
  done clear
  C)
   plasmids       
  done clear
  D)
   all prokaiyotic cells
  done clear
  View Answer play_arrow

• question_answer166) The \[{{F}_{2}}\]generation offspring in a plant showing incomplete dominance, exhibit:
  A)
   variable genotypic and phenotypic ratio
  done clear
  B)
   a genotypic ratio of 1 : 1
  done clear
  C)
   a phenotypic ratio of 3 : 1
  done clear
  D)
   similar phenotypic and genotypic ratio of 1 : 2 : 1
  done clear
  View Answer play_arrow

• question_answer167) Identify the correct statement with reference to transport of respiratory gases by blood?
  A)
   haemoglobin is necessary for transport of carbon dioxide and carbonic anhydrase for transport of oxygen
  done clear
  B)
   haemoglobin is necessary for transport of oxygen and carbonic anhydrase for transport of carbon dioxide
  done clear
  C)
   only oxygen is transported by blood
  done clear
  D)
   only carbon dioxide is transported by blood
  done clear
  View Answer play_arrow

• question_answer168) In the angiospenn ovule, central cell of the embryo sac, prior to the entry of pollen tube, contains:
  A)
   a single haploid nucleus
  done clear
  B)
   one diploid and one haploid nuclie
  done clear
  C)
   two haploid polar nuclei
  done clear
  D)
   one diploid secondary nucleus
  done clear
  View Answer play_arrow

• question_answer169) Read the two statements A and B Statement A: The number of mitochondria in a cell do not correspond to the function of the cell. Statement B: Mitochondria are common to both plant and animal cells. Choose the correct option from those given
  A)
   statement A is correct, B is wrong
  done clear
  B)
   statement B is correct, A is wrong
  done clear
  C)
   both the statement A and B are correct
  done clear
  D)
   both the statements A and B are wrong
  done clear
  View Answer play_arrow

• question_answer170) Which of the following birth control measure can be considered as the safest?
  A)
   The rhythm method
  done clear
  B)
   The use of physical barriers
  done clear
  C)
   Termination of unwanted pregnancy
  done clear
  D)
   Sterilization techniques
  done clear
  View Answer play_arrow

• question_answer171) What is the common point of similarity between DNA and RNA?
  A)
   Both are double stranded
  done clear
  B)
   Both have identical sugar molecules
  done clear
  C)
   Both have identical pyrimidine bases
  done clear
  D)
   Both are polymers of nucleotides
  done clear
  View Answer play_arrow

• question_answer172) The following is a simplified scheme showing the fate of glucose during aerobic and anaerobic respiration. Identify the end products that are formed at stagtes indicated as A, B, C, and D. Identify the correct option from those given below:
  A)
   A = carbon dioxide and water, B = pyruvic acid, C = ethyl alcohol and carbon dioxide, D = lactic acid
  done clear
  B)
   A = pyruvic acid, B = carbon dioxide and water, C = lactic acid, D = ethyl alcohol and carbon dioxide
  done clear
  C)
   A = pyruvic acid, B = carbon dioxide and water, C = ethyl alcohol and carbon dioxide, D = lactic acid
  done clear
  D)
   A = pyruvic acid, B = ethyl alcohol and carbon dioxide, C = lacdc acid, D = carbon dioxide and water
  done clear
  View Answer play_arrow

• question_answer173) Identify the  correct  relationship with reference to water potential of a plant cell:
  A)
   \[{{\psi }_{w}}={{\psi }_{m}}+{{\psi }_{s}}+{{\psi }_{p}}\]
  done clear
  B)
   \[{{\psi }_{w}}={{\psi }_{m}}+{{\psi }_{s}}-{{\psi }_{p}}\]
  done clear
  C)
   \[{{\psi }_{w}}={{\psi }_{m}}-{{\psi }_{s}}+{{\psi }_{p}}\]
  done clear
  D)
   \[{{\psi }_{w}}={{\psi }_{m}}-{{\psi }_{s}}-{{\psi }_{p}}\]
  done clear
  View Answer play_arrow

• question_answer174) Bioinfonnatics is an interdisciplinary branch which is concerned with the application of:
  A)
   engineering techniques in biological studies
  done clear
  B)
   chemistry in understanding the biological phenomenon
  done clear
  C)
   physics in understanding various life processes
  done clear
  D)
   information science in analysing the biological data
  done clear
  View Answer play_arrow

• question_answer175) The highly degraded organic matter rich in nitrogen and potassium in particular resulting from the activity of earthworms, is called:
  A)
   worm castings
  done clear
  B)
   vermicompost
  done clear
  C)
   compost bedding
  done clear
  D)
   humus
  done clear
  View Answer play_arrow

• question_answer176) Identify from the following examples, a fungus which is of medicinal importance?
  A)
   Agaricus       
  done clear
  B)
   Saccharomyces
  done clear
  C)
   Penicillium     
  done clear
  D)
   Cercospora
  done clear
  View Answer play_arrow

• question_answer177) Passive absorption of water by the root system is the result of:
  A)
   forces created in the cells of the root
  done clear
  B)
   increased respiratory activity in root cells
  done clear
  C)
   tension on the cell sap due to transpiration
  done clear
  D)
   Osmotic force in the shoot system
  done clear
  View Answer play_arrow

• question_answer178) Which of the following character is exclusive to mammals?
  A)
   Presence of a four chambered heart
  done clear
  B)
   Homeothermic condition
  done clear
  C)
   Respiration by lungs
  done clear
  D)
   Presence of a diaphragm
  done clear
  View Answer play_arrow

• question_answer179) All the terminator codons begin with the nucleotide of:
  A)
   adenine        
  done clear
  B)
   uracil
  done clear
  C)
   guanine        
  done clear
  D)
   cytosine
  done clear
  View Answer play_arrow

• question_answer180) Column I lists the endocrine structure and column II lists the corresponding hormones. Match the two columns. Identify the correct option from those given:

  	Column I		Column II
  A.	Hypothalamus	1.	Relaxin
  B.	Anterior pituitary	2.	Estrogen
  C.	Testis	3.	FSH and LH
  D.	Ovary	4.	Androgens
  		5.	Gonadotropin releasing hormone

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