question_answer 1) The velocity of bullet is reduced from 200 m/s to 100 m/s while travelling through a wooden block of thickness of 10 cm. The retardation assuming to be uniform, will be :
A)
\[15\times {{10}^{4}}m/{{s}^{2}}\]
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B)
\[13.5\times {{10}^{4}}m/{{s}^{2}}\]
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C)
\[12\times {{10}^{4}}m/{{s}^{2}}\]
done
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D)
none of these
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question_answer 2) A stone tied to one end of spring 80 cm long is whirled in a horizontal circle with a constant speed. If stone makes 25 revolutions in 14 sec, the magnitude of acceleration of stone is :
A)
\[850\text{ }cm/{{s}^{2}}\]
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B)
\[996\text{ }cm/se{{c}^{2}}\]
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C)
\[720\text{ }cm/{{s}^{2}}\]
done
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D)
\[650\text{ }cm/se{{c}^{2}}\]
done
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question_answer 3) A concave mirror of focal length 15 cm forms an image having twice the linear dimension of the object. The position of the object when die image is virtual will be :
A)
45 cm
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B)
30 cm
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C)
7.5 cm
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D)
22.5 cm
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question_answer 4) The thermodynamic co-ordinates of a jar filled with gas A are P, V and T and another jar B filled with another gas are 2P, V/4 and 2T, where the symbols have their usual meaning. The ratio of the number of molecules of jar A to those of jar B is :
A)
4 : 1
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B)
2 : 1
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C)
1:2
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D)
1 : 1
done
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question_answer 5) If the pressure of a gas contained in a vessel is increased by 0.4% when heated through 1°C, the initial temperature had been :
A)
2500 K
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B)
250 K
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C)
\[250{}^\circ C\]
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D)
\[25{}^\circ C\]
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question_answer 6) A fire screen produces sensation of cooling as :
A)
it allows both infrared and visible light but cuts off ultraviolet
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B)
it allows infrared and cuts off shorter wavelengths
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C)
it cuts off both visible light and infrared
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D)
it allows only visible light and, cuts off infrared
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question_answer 7) For a given angle of projection, if the time of flight of a projectile is doubled, the horizontal range will increase to :
A)
four times
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B)
thrice
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C)
once
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D)
twice
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question_answer 8) When the kinetic energy of a body executing S.H.M. is 1/3 of the potential energy. The displacement of the body is \[x\] percent of the amplitude, where x is :
A)
33
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B)
87
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C)
67
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D)
50
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question_answer 9) In the case of horse pulling a cart, the force that causes the horse to move forward is the force that :
A)
the horse exerts on the ground
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B)
the horse exerts on the cart
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C)
the ground exerts on the horse
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D)
the cart exerts on the horse
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question_answer 10) If retardation produced by air resistance of projectile is one-tenth of acceleration due to gravity, the time to reach maximum height :
A)
decreases by 11 percent
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B)
increases by 11 percent
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C)
decreases by 90 percent
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D)
increases by 90 percent
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question_answer 11) \[y\] component of velocity is 20 and \[x\] component of velocity is 10. The direction of motion of the body with the horizontal at this instant is :
A)
\[ta{{n}^{-1}}(2)\]
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B)
\[ta{{n}^{-1}}(1/2)\]
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C)
45°
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D)
0°
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question_answer 12) The dimension of light year is :
A)
\[[{{L}^{-1}}]\]
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B)
\[[{{T}^{-1}}]\]
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C)
[L]
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D)
[T]
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question_answer 13) In a good conductor of electricity, the type of bonding that exists is :
A)
ionic
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B)
van der waal
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C)
covalent
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D)
metallic
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question_answer 14) Two identical straight wires are stretched so as to produce 6 beats per second when vibrating simultaneously. On changing the tension slightly in one of them, the beat frequency still remains unchanged. Denoting by \[{{T}_{1}}\] and \[{{T}_{2}}\] the higher and the lower initial tensions in the strings, it could be said that while making the above changes in tension :
A)
\[{{T}_{1}}\]was decreased
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B)
\[{{T}_{1}}\]was increased
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C)
\[{{T}_{2}}\]was increased
done
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D)
\[{{T}_{2}}\]was decreased
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question_answer 15) When beats are produced by two progressive waves of the same amplitude and of nearly the same frequency, the ratio of maximum loudness to the loudness of one of the waves will be \[n\] Where \[n\] is :
A)
3
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B)
1
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C)
4
done
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D)
2
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question_answer 16) A body is suspended from a smooth horizontal nail by a string of length 0.25 meter. What minimum horizontal velocity should be given to it in the lowest position so that it may move in a complete vertical circle with the nail at the centre?
A)
\[\sqrt{12.25}m{{s}^{-1}}\]
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B)
\[4.9\,m{{s}^{-1}}\]
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C)
\[7\sqrt{2}\,m{{s}^{-1}}\]
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D)
\[\sqrt{9.8}\,m{{s}^{-1}}\]
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question_answer 17) Two rain drops falling through air have radii in the ratio 1: 2. They will have terminal velocity in the ratio :
A)
4 : 1
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B)
1 : 4
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C)
2:1
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D)
1 : 2
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question_answer 18) A body is acted on by force towards a point. The magnitude of the force is inversely proportional to the square of the distance. The path of body will be :
A)
ellipse
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B)
hyperbola
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C)
circle
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D)
parabola
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question_answer 19) An electric immersion heater of 1.08 kW is immersed in water. After the water has reached a temperature of 100°C, how much time will be required to produce 100 g of steam?
A)
210 s
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B)
105 s
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C)
420 s
done
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D)
50 s
done
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question_answer 20) The speed of sound through oxygen at TK is \[u\] \[m{{s}^{-1}}.\] As the temperature becomes 2T and oxygen gas dissociates into atomic oxygen, the speed of sound :
A)
remains the same
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B)
becomes \[2u\]
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C)
becomes \[\sqrt{2u}\]
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D)
none of these
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question_answer 21) Illumination of the sun at noon is maximum because :
A)
scattering is reduced at noon
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B)
refraction of light is minimum at noon
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C)
rays are incident almost normally
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D)
the sun is nearer to earth at noon
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question_answer 22) Two spheres of radii in the ratio 1:2 and densities in the ratio 2:1 and of same specific heat, are heated to same temperature and left in the same surrounding. Their rate of cooling will be in the ratio :
A)
2:1
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B)
1:1
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C)
1 : 2
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D)
1 : 4
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question_answer 23) The formation of ice is started in a lake with water at \[0{}^\circ C\]. When the atmospheric temperature is -\[10{}^\circ C\]. If time taken for 1 cm of ice to be formed is 7 hours, the time taken for the thickness of ice to increase from 1 cm to 2 cm is :
A)
less than 7 hours
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B)
7 hours
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C)
more than 14 hours
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D)
more than 7 hours but less than 14 hours
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question_answer 24) If an ideal flask containing hot coffee is shaken, the temperature of the coffee will :
A)
decrease
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B)
increase
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C)
remain same
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D)
decrease if temperature is below \[4{}^\circ C\] and increase if temperature is equal to or more than \[4{}^\circ C\]
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question_answer 25) Water is used to cool the radiators of engines in cars because :
A)
of its low boiling point
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B)
of its high specific heat
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C)
of its low density
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D)
of its easy availability
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question_answer 26) Suppose radius of the moons orbit around the earth is doubled. Its period around the earth will become :
A)
1/2 times
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B)
\[\sqrt{2}\] times
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C)
\[{{2}^{2/3}}\]times
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D)
\[{{2}^{3/2}}\] times
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question_answer 27) A sphere is accelerated upwards by a cord whose braking strength is four times its weight. The maximum acceleration with which the sphere can move up without breaking the cord is :
A)
\[g\]
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B)
3g
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C)
2g
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D)
4g
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question_answer 28) The potential due to dipole at a point is proportional to :
A)
\[{{r}^{-}}^{2}\]
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B)
\[{{r}^{3}}\]
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C)
\[{{r}^{2}}\]
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D)
r
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question_answer 29) The capacitance of a spherical conductor with radius 1 m is :
A)
\[9\times {{10}^{-}}^{9}F\]
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B)
1\[\mu \]F
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C)
\[2.5\times {{10}^{-10}}F\]
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D)
\[1\times {{10}^{-6}}F\]
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question_answer 30) A body moves for a total of nine second starting from rest with uniform acceleration and then with uniform retardation, which is twice the value of acceleration and then stops. The duration. of uniform acceleration is:
A)
3 s
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B)
4.5 s
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C)
5s
done
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D)
6 s
done
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question_answer 31) sFor achromatic combination of lenses, if we use two lenses of focal length and f respectively, dispersive powers \[\omega \] , and \[\omega \] then :
A)
\[\omega ={{\omega }_{0,}}\omega =2{{\omega }_{0,}}f=2f\]
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B)
\[\omega ={{\omega }_{0,}}\omega =2{{\omega }_{0,}}f=-2f\]
done
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C)
\[\omega ={{\omega }_{0,}}\omega =2{{\omega }_{0,}}f=f/2\]
done
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D)
\[\omega ={{\omega }_{0,}}\omega =2{{\omega }_{0,}}f=-f/2\]
done
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question_answer 32) A convex lens makes a real image of 4 cm long on a screen. When the lens is shifted to a new position without disturbing the object or the screen, we get a real image on the screen, which is 16 cm long. The length of the object is :
A)
1/4 cm
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B)
8 cm
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C)
20 cm
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D)
2 cm
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question_answer 33) In a sinusoidal wave, the time required for a particular point to move from maximum displacement is 0.17 sec. Then the frequency of the wave is :
A)
0.38 Hz
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B)
0.78 Hz
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C)
2.9 Hz
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D)
1.56 Hz
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question_answer 34) Bernoullis principle is based on the law of conservation of :
A)
angular momentum
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B)
linear momentum
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C)
mass
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D)
energy
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question_answer 35) The colour of a star indicates its :
A)
temperature
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B)
distance
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C)
velocity
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D)
size
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question_answer 36) Efficiency of a HW rectifier is nearly :
A)
80%
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B)
60%
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C)
40%
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D)
20%
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question_answer 37) The current in a diode is related to the voltage V by the equation :
A)
\[I\propto {{V}^{1/2}}\]
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B)
\[I\propto {{V}^{3/2}}\]
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C)
\[I\propto {{V}^{2}}\]
done
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D)
\[I\propto V\]
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question_answer 38) An X-ray photon has a wavelength \[0.01\overset{\text{o}}{\mathop{\text{A}}}\,\]. Its momentum (in \[kgm{{s}^{-1}}\] ) is :
A)
\[6.66\times {{10}^{-22}}\]
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B)
\[3.3\times {{10}^{-32}}\]
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C)
\[6.6\times {{10}^{-22}}\]
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D)
0
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question_answer 39) The equation\[{{4}_{1}}{{H}^{1}}{{\xrightarrow{{}}}_{2}}H{{e}^{4++}}+2{{e}^{+}}+26MeV\] represents:
A)
\[\gamma \]-decay
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B)
\[\beta \]-decay
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C)
fission
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D)
fusion
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question_answer 40)
An infinitely long straight conductor is bent into the shape as shown in figure. It carries a current \[i\] A and radius of the circular loop is \[r\] m. The magnetic field at the centre of the loop is :
A)
\[{{\mu }_{0i}}(\pi -1)2\pi r\]
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B)
\[{{\mu }_{0i}}(\pi +1)2\pi r\]
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C)
\[{{\mu }_{i}}/2\pi r\]
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D)
none of the above
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question_answer 41) The dimensional formula for thermal resistance is :
A)
\[{{\text{M}}^{\text{-1}}}{{\text{L}}^{\text{-2}}}{{\text{T}}^{\text{3}}}\text{ }\!\!\theta\!\!\text{ }\]
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B)
\[{{\text{M}}^{\text{-1}}}{{\text{L}}^{\text{-2}}}{{\text{T}}^{\text{3}}}\text{ }\!\!\theta\!\!\text{ }\]
done
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C)
\[\text{M}{{\text{L}}^{\text{-2}}}{{\text{T}}^{2}}\text{ }\!\!\theta\!\!\text{ }\]
done
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D)
\[\text{M}{{\text{L}}^{\text{-2}}}{{\text{T}}^{-2}}{{\text{ }\!\!\theta\!\!\text{ }}^{-1}}\]
done
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question_answer 42) A truck travelling due north at 20 ms turns west and travels with same speed. What is the change in velocity?
A)
\[20\sqrt{2\,}\,m{{s}^{-1}}\]south-west
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B)
40 ms-1 south-West
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C)
\[20\sqrt{2\,}\,m{{s}^{-1}}\] north-west
done
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D)
\[40\text{ }m{{s}^{-1}}\] north-west
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question_answer 43) An iron bar of length I and having a cross-section A is heated from 0 to 100°C. If this bar is so held that it is not permitted to expand or bend, the force that is developed, is :
A)
inversely proportional to the cross-sectional area of the bar
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B)
independent of the length of the bar
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C)
inversely proportional to the length of the bar
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D)
directly proportional to the length of the bar
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question_answer 44) A body of uniform cross-sectional area floats in a liquid of density thrice its value. The fraction of exposed height will be:
A)
2/3
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B)
5/6
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C)
1/6
done
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D)
1/3
done
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question_answer 45) The restoring force of S.H.M. is maximum when particle :
A)
displacement is maximum
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B)
half way between them
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C)
when crossing mean position
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D)
at rest
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question_answer 46) Two forces of 12N and 8N act upon a body. The resultant force on the body has a maximum value of :
A)
4N
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B)
ON
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C)
20N
done
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D)
8N
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question_answer 47) Which of following pairs does not have similar dimensions?
A)
Plancks constant and angular momentum
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B)
Tension and surface tension
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C)
Angle and strain
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D)
Stress and pressure
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question_answer 48) Four lenses are made from the same type of glass. The radius of curvature of each face is given below. Which will have the greatest positive power?
A)
10 cm convex and 15 concave
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B)
5 cm convex and 10 cm concave
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C)
15 cm convex and plane
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D)
20 cm convex and 30 cm concave
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question_answer 49) The slope of a graph drawn between threshold frequency and stopping potential is :
A)
\[e\]
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B)
\[h\]
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C)
\[\frac{h}{e}\]
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D)
\[he\]
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question_answer 50)
The truth table given below belongs for which gate ?
A
B
C
0
0
1
0
1
1
1
0
1
1
1
0
A)
OR
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B)
XOR
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C)
AND
done
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D)
NAND
done
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question_answer 51) Action of nitrous acid on ethyl amine gives:
A)
nitro methane
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B)
\[N{{H}_{3}}\]
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C)
\[{{C}_{2}}{{H}_{6}}\]
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D)
\[{{C}_{2}}{{H}_{5}}OH\]
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question_answer 52) Which one of the following is least likely to act as a lewis base?
A)
\[{{I}^{+}}\]
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B)
\[I\]
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C)
\[SC{{l}_{2}}\]
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D)
\[PC{{l}_{3}}\]
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question_answer 53) The molecule which has T-shaped structure is:
A)
\[PC{{l}_{3}}\]
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B)
\[Cl{{F}_{3}}\]
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C)
\[Cl{{F}_{3}}\]
done
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D)
\[BC{{l}_{3}}\]
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question_answer 54) The conjugate acid of \[NH_{2}^{-}\] is:
A)
\[{{N}_{2}}{{H}_{2}}\]
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B)
\[NH_{4}^{+}\]
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C)
\[N{{H}_{2}}OH\]
done
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D)
\[N{{H}_{3}}\]
done
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question_answer 55) \[{{E}^{o}}\] for \[F{{e}^{2+}}+2{{e}^{-}}\xrightarrow{{}}Fe\] is \[-0.44\]volt and\[{{E}^{o}}\] for \[Z{{n}^{2+}}+2{{e}^{-}}\xrightarrow{{}}Zn\]is \[-0.76\]volt thus:
A)
\[Zn\] is more electropositive than \[Fe\]
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B)
\[Zn\] is more electronegative than \[Fe\]
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C)
\[Fe\] is more electropositive than \[Zn\]
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D)
none
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question_answer 56) Which isotope is likely to be most stable?
A)
\[_{30}Z{{n}^{66}}\]
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B)
\[_{30}Z{{n}^{64}}\]
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C)
\[_{30}Z{{n}^{71}}\]
done
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D)
none
done
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question_answer 57) The molecular formula of Phosphorus is:
A)
\[{{P}_{5}}\]
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B)
\[{{P}_{2}}\]
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C)
\[{{P}_{4}}\]
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D)
\[{{P}_{1}}\]
done
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question_answer 58) Polyethylene is a resin obtained by polymerization of:
A)
styrene
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B)
isoprene
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C)
ethylene
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D)
butadiene
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question_answer 59) The term \[\frac{-dc}{dt}\] in a rate equation refers to:
A)
the decrease in concentration of the reactant with time
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B)
the concentration of a reactant
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C)
the change in concentration of the reactant
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D)
the velocity constant of the reaction
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question_answer 60) \[{{H}_{3}}P{{O}_{3}}\] is:
A)
A dibasic acid
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B)
A tribasic acid
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C)
monobasic
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D)
neutral
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question_answer 61) Cassiterite is an ore of:
A)
iron
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B)
lead
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C)
mercury
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D)
tin
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question_answer 62) The substance used as pigment in paint is:
A)
borax
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B)
alumina
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C)
lithopone
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D)
none
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question_answer 63) A certain mass of gas occupies a volume of 2 litre at STP keeping the pressure constant. At what temperature would the gas occupy a volume of 4 litre?
A)
\[{{50}^{o}}C\]
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B)
\[{{100}^{o}}C\]
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C)
\[{{273}^{o}}C\]
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D)
\[{{546}^{o}}C\]
done
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question_answer 64) Benzoic acid dissolved in benzene shows a molecular weight of:
A)
\[61\]
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B)
\[244\]
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C)
\[366\]
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D)
\[122\]
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question_answer 65) In the compounds \[~KMn{{O}_{4~}}\]and \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\], the highest oxidation state is of the element:
A)
\[Mn\]
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B)
\[K\]
done
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C)
\[O\]
done
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D)
\[Cr\]
done
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question_answer 66) Among \[HF\], \[C{{H}_{4}}\], \[C{{H}_{3}}OH\] and\[{{N}_{2}}{{O}_{4}}\], inter molecular hydrogen bond is expected:
A)
in two
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B)
in all
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C)
in all leaving one
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D)
none of these
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question_answer 67) Which gas has the higher partial pressure in atmosphere?
A)
\[{{N}_{2}}\]
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B)
\[{{O}_{2}}\]
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C)
\[{{H}_{2}}O\]
done
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D)
\[C{{O}_{2}}\]
done
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question_answer 68) What bond order does \[L{{i}_{2}}\]have?
A)
\[3\]
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B)
\[1\]
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C)
\[2\]
done
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D)
\[0\]
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question_answer 69) The element present in gun-metal is:
A)
\[Co\]
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B)
\[Cu\]
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C)
\[Sc\]
done
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D)
\[Ti\]
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question_answer 70) The weakest acid is:
A)
\[HI\]
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B)
\[HBr\]
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C)
\[HCl\]
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D)
\[HF\]
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question_answer 71) Carborundum is the commercial name of:
A)
\[A{{l}_{2}}{{O}_{3}}\]
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B)
\[SiC\]
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C)
\[BN\]
done
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D)
\[Si{{O}_{2}}\]
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question_answer 72) Which conversion is an oxidation?
A)
\[SO_{4}^{2-}....SO_{3}^{2-}\]
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B)
\[C{{u}^{2+}}....Cu\]
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C)
\[{{H}^{+}}....H\]
done
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D)
\[{{H}^{-}}....H\]
done
clear
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question_answer 73) Ionic hydrides react with water to give :
A)
hydride ions
done
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B)
acidic solutions
done
clear
C)
protons
done
clear
D)
basic solutions
done
clear
View Answer play_arrow
question_answer 74) For the cell,\[TI+T{{I}^{+}}(0.01M)||{{C}^{2+}}(0.1)M|Cu\]\[{{E}_{cell}}\] at x\[{{25}^{o}}C\] is \[0.83V\]. \[{{E}_{cell}}\]can be increased:
A)
by decreasing \[[C{{u}^{2+}}]\]
done
clear
B)
by increasing \[[C{{u}^{2+}}]\]
done
clear
C)
by increasing \[[T{{I}^{+}}]\]
done
clear
D)
none
done
clear
View Answer play_arrow
question_answer 75) Electrolytes, when dissolved in water, dissociate into their constituent ions. The degree of dissocation of a weak electrolyte increases with:
A)
the presence of a substance yielding common ion
done
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B)
decreasing temperature
done
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C)
decreasing Concentration of the electrolyte
done
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D)
increasing concentration of the electrolyte
done
clear
View Answer play_arrow
question_answer 76) The number of p-electrons in bromine atom is:
A)
\[12\]
done
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B)
\[15\]
done
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C)
\[7\]
done
clear
D)
\[17\]
done
clear
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question_answer 77) If the ionization potential for hydrogen atom is\[13.6eV\], then the ionization potential for \[H{{e}^{+}}\] ion should be:
A)
\[13.6eV\]
done
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B)
\[6.8eV\]
done
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C)
\[54.4eV\]
done
clear
D)
\[72.2eV\]
done
clear
View Answer play_arrow
question_answer 78) Pinacol is:
A)
3-methyl butan-2-ol
done
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B)
2, 3-dimethyl-2, 3-butandiol
done
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C)
2, 3-dimethyl-2-propanone
done
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D)
none
done
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View Answer play_arrow
question_answer 79) In glycine, the basic group is:
A)
\[-CO{{O}^{-}}\]
done
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B)
\[-COOH\]
done
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C)
\[-N{{H}_{2}}\]
done
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D)
\[-NH_{3}^{+}\]
done
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View Answer play_arrow
question_answer 80) Which alkyl halide is preferentially hydrolysed by \[S{{N}^{1}}\]mechanism?
A)
\[{{(C{{H}_{3}})}_{3}}C.Cl\]
done
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B)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Cl\]
done
clear
C)
\[C{{H}_{3}}C{{H}_{2}}Cl\]
done
clear
D)
\[C{{H}_{3}}Cl\]
done
clear
View Answer play_arrow
question_answer 81) The number of Ti-bonds present in propyne is:
A)
\[4\]
done
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B)
\[1\]
done
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C)
\[3\]
done
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D)
\[2\]
done
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question_answer 82) When metals react with non-metals, the metal atoms tend to?
A)
share electrons
done
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B)
lose electrons
done
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C)
gain electrons
done
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D)
none
done
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question_answer 83) \[1kg\]of \[NaOH\]solution contains \[4g\] of \[NaOH\]. The approximate concentration of the solution is:
A)
about \[0.1N\]
done
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B)
decinormol
done
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C)
0.1 molal
done
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D)
0.1 molar
done
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View Answer play_arrow
question_answer 84) How much of solution \[0.1\,M\,{{H}_{2}}S{{O}_{4}}\] is required to neutralize \[50ml\]of \[0.2M\] solution:
A)
\[50ml\]
done
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B)
\[5.0ml\]
done
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C)
\[0.50\text{ }ml\]
done
clear
D)
\[100ml\]
done
clear
View Answer play_arrow
question_answer 85) The rate for the reaction\[RCl+NaO{{H}_{(aq)}}\xrightarrow{{}}ROH+NaCl\]is given by rate \[=k[RCl]\], the freezing point of the reaction is:
A)
unaffacted by increasing the temp. of the reaction
done
clear
B)
decreased on increasing the temp. of the reaction
done
clear
C)
halved on reducing the concentration of \[RCl\] to half
done
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D)
doubled on doubling the concentration of \[NaOH\]
done
clear
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question_answer 86) The sub atomic particle, not found in the nucleus, is:
A)
proton
done
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B)
neutron
done
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C)
electron
done
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D)
none
done
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question_answer 87) Emission of a beta particle by an atom of an element results in the formation of:
A)
isomer
done
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B)
isotope
done
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C)
isobar
done
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D)
isomorph
done
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View Answer play_arrow
question_answer 88) Which type of isomerism is most common among ethers?
A)
Metamerism
done
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B)
Functional
done
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C)
Chain
done
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D)
Position
done
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View Answer play_arrow
question_answer 89) glucose is hydrolysed by zymase into:
A)
amino acids
done
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B)
alcohol
done
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C)
aromatic acids
done
clear
D)
dicarboxylic acid
done
clear
View Answer play_arrow
question_answer 90) For the equilibrium,\[PC{{l}_{5}}PC{{l}_{3}}+C{{l}_{2}},{{K}_{c}}=\frac{{{\alpha }^{2}}}{(1-\alpha )V}\]temperature remaining constant:
A)
\[{{K}_{c}}\] may increase or decrease with the change in volume depending upon its numerical value
done
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B)
\[{{K}_{c}}\] will increase with the increase in volume
done
clear
C)
\[{{K}_{c}}\] will increase with the decrease in volume
done
clear
D)
\[{{K}_{c}}\] will not change with the change in volume
done
clear
View Answer play_arrow
question_answer 91) \[20g\]of a binary electrolyte (mol. \[wt=100\]) are dissolved in \[500g\]of water. The depression in freezing point of the solution is \[{{0.74}^{o}}C\]\[({{K}_{f}}=1.86K\,molalit{{y}^{-1}})\] The degree of ionization of the electrolyte is:
A)
\[0%\]
done
clear
B)
\[100%\]
done
clear
C)
\[75%\]
done
clear
D)
\[50\]
done
clear
View Answer play_arrow
question_answer 92) A spontaneous change is one in which the system suffers:
A)
a lowering of free energy
done
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B)
a lowering of energy
done
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C)
an increase in internal energy
done
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D)
no energy change
done
clear
View Answer play_arrow
question_answer 93) According to equation,\[{{C}_{6}}{{H}_{6}}(l)+\frac{15}{2}{{O}_{2}}(g)\xrightarrow{{}}3{{H}_{2}}O(l)+6C{{O}_{2}}(g)\]\[\Delta H=-3264.4kJ/\,mol\]. The energy evolved when \[7.8g\]of benzene is burnt in air will be:
A)
\[3.264\text{ }kJ/mol\]
done
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B)
\[32.64\text{ }kJ/mol\]
done
clear
C)
\[326.4\text{ }kJ/mol\]
done
clear
D)
\[163.22\text{ }kJ/mol\]
done
clear
View Answer play_arrow
question_answer 94) When \[PC{{l}_{5}}\]reacts with sulphuric acid, sulphuryl chloride \[(S{{O}_{2}}C{{l}_{2}})\] is formed as the final product. This shows that sulphuric acid:
A)
has two hydroxyl groups in its structure
done
clear
B)
is a derivative of sulphur dioxide
done
clear
C)
is a dibasic acid
done
clear
D)
has greater affinity for water
done
clear
View Answer play_arrow
question_answer 95) In which reaction addition takes place according to Markownikoffs rule?
A)
\[C{{H}_{3}}CH=CHC{{H}_{3}}+B{{r}_{2}}\xrightarrow{{}}\]
done
clear
B)
\[C{{H}_{2}}\text{ =}C{{H}_{2}}+HBr\xrightarrow{{}}\]
done
clear
C)
\[C{{H}_{3}}CH=C{{H}_{2}}+HBr\xrightarrow{{}}\]
done
clear
D)
\[C{{H}_{3}}CH=C{{H}_{2}}+B{{r}_{2}}\xrightarrow{{}}\]
done
clear
View Answer play_arrow
question_answer 96) Which statement is false? (Assume complete dissociation in each case):
A)
If \[2.0\]litre of a solution of \[{{H}_{2}}S{{O}_{4}}\] contains \[0.1\]mole, then pH of the solution is 2
done
clear
B)
The concentration of \[O{{H}^{-}}\] in \[0.005M\]\[HN{{O}_{3}}\] is \[2.0\times {{10}^{-12}}mol/l\]
done
clear
C)
The pH of \[0.01M\] \[KOH\] is 12
done
clear
D)
In a \[0.001\text{ }M\]solution of \[NaOH\] the concentration of \[{{H}^{+}}\] is \[{{10}^{-3}}mol/litre\]
done
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question_answer 97) The hydrolysis constant of a salt of weak acid and weak base is inversely proportional to:
A)
ionic product of water
done
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B)
dissocation constant of both weak acid and weak base
done
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C)
dissociation constant of weak acid
done
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D)
dissociation constant of weak base
done
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View Answer play_arrow
question_answer 98) Acetamide and ethyl amine are distinguished by reacting with: -
A)
\[B{{r}_{2}}\] water
done
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B)
acidic \[KMn{{O}_{4}}\]
done
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C)
aq. \[NaOH\] and heat
done
clear
D)
aq. \[HCl\] and heat
done
clear
View Answer play_arrow
question_answer 99) Which shows the easier electrophilic substitution in ring?
A)
N-acetyl aniline
done
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B)
\[{{C}_{6}}{{H}_{5}}N{{H}_{3}}Cl\]
done
clear
C)
Aniline
done
clear
D)
Nitrobenzene
done
clear
View Answer play_arrow
question_answer 100) \[300\text{ }ml\]of a gas at \[{{27}^{o}}C\]is cooled to \[-{{3}^{o}}C\]at constant pressure. The final volume is:
A)
\[350\,l\]
done
clear
B)
\[270\text{ }ml\]
done
clear
C)
\[540\text{ }ml\]
done
clear
D)
\[135\text{ }ml\]
done
clear
View Answer play_arrow
question_answer 101) Pasteur and Koch are related to :
A)
discovery of nucleic acids (DNA and RNA)
done
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B)
discovery of ultracentrifuge
done
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C)
germ theory of disease
done
clear
D)
gene splicing
done
clear
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question_answer 102) Upon amniocentesis of a pregnant woman, it is found that the embryo contains both, Barr body and F-body. The syndrome likely to be associated with the embryo is :
A)
Edwards syndrome
done
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B)
Downs syndrome
done
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C)
Klinefelters syndrome
done
clear
D)
Pataus syndrome
done
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View Answer play_arrow
question_answer 103) The retina of nocturnal birds contain :
A)
cones only
done
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B)
rods only
done
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C)
both a and b
done
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D)
either a or b
done
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View Answer play_arrow
question_answer 104) Among the following which one is longest phase in prophase of meiosis?
A)
Leptotene
done
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B)
Zygotene
done
clear
C)
Pachytene
done
clear
D)
Diplotene
done
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View Answer play_arrow
question_answer 105) The cavity in the region of diencephalon in the brain of rabbit is called :
A)
lateral ventricle
done
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B)
third ventricle
done
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C)
foramen of monro
done
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D)
iter
done
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question_answer 106) Graafian follicle contains :
A)
oogonial cells
done
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B)
corpus luteum
done
clear
C)
theca externa and theca interna
done
clear
D)
corpus albicans
done
clear
View Answer play_arrow
question_answer 107) Excretion means :
A)
formation of those substances which have some role in the body
done
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B)
removal of such substances which have never been part of the body
done
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C)
removal of useless substances and substances present in excess
done
clear
D)
all of the above
done
clear
View Answer play_arrow
question_answer 108) Arthropoda are characterised by :
A)
jointed appendages
done
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B)
open blood vascular system
done
clear
C)
triploblastic
done
clear
D)
all of the above
done
clear
View Answer play_arrow
question_answer 109) A red blood cell (RBC) was kept in a certain solution for few minutes and it got burst. The said solution was :
A)
isotonic
done
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B)
concentrated sugar solution
done
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C)
hypertonic
done
clear
D)
hypotonic
done
clear
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question_answer 110) The alternate host of Taenia saginata is :
A)
cow
done
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B)
pig
done
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C)
dog
done
clear
D)
none of these
done
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View Answer play_arrow
question_answer 111) Mammary glands are modified :
A)
sweat glands
done
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B)
ceruminous glands
done
clear
C)
glands of Zeis
done
clear
D)
inguinal glands
done
clear
View Answer play_arrow
question_answer 112) End of long bones are covered with :
A)
muscles
done
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B)
cartilage
done
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C)
adipose tissue
done
clear
D)
bone marrow
done
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View Answer play_arrow
question_answer 113) Which one of the following is correct?
A)
Mesoderm - brain
done
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B)
Ectoderm - liver
done
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C)
Mesoderm-skeleton
done
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D)
Endodermis - epidermis
done
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View Answer play_arrow
question_answer 114) The generic name of tusk shell is :
A)
Dentalium
done
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B)
Chaetoderma
done
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C)
Chiton
done
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D)
Neopuna
done
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question_answer 115) From Ascaris egg, first larva hatches out in the :
A)
intestine of host
done
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B)
stomach of host
done
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C)
outside the body
done
clear
D)
uterus of female Ascaris
done
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View Answer play_arrow
question_answer 116) Which of the following presumably possesses a cranial capacity larger than modem man ?
A)
Neanderthal man
done
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B)
Pecking man
done
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C)
Australopithecus
done
clear
D)
Cro-magnon man
done
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View Answer play_arrow
question_answer 117) Spontaneous generation theory was given by :
A)
F. Reddi
done
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B)
L. Splanzanii
done
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C)
Louis Pasteur
done
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D)
Aristotle
done
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View Answer play_arrow
question_answer 118) Electro cardiograph was developed by :
A)
Hans Berger
done
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B)
Willem Kolff
done
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C)
Willem Einthoran
done
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D)
Wiehelm Roentgen
done
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View Answer play_arrow
question_answer 119) Various enzymes and hormones can be produced on large scale by employing the recombinant :
A)
DNA technique
done
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B)
RNA technique
done
clear
C)
viral technique
done
clear
D)
bacterial technique
done
clear
View Answer play_arrow
question_answer 120) Which structure is not related to respiration in frog ?
A)
Diaphragm
done
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B)
Skin
done
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C)
Buccal cavity
done
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D)
Lungs
done
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View Answer play_arrow
question_answer 121) Increase of blood sugar level is known as :
A)
diabetes insipidus
done
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B)
diabetes mellitus
done
clear
C)
hypoglycemia
done
clear
D)
both a and b
done
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View Answer play_arrow
question_answer 122) Mosaic disease in tobacco is due to :
A)
bacteria
done
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B)
virus
done
clear
C)
mycoplasma
done
clear
D)
algae
done
clear
View Answer play_arrow
question_answer 123) Pulse beat is measured from :
A)
arteries
done
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B)
veins
done
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C)
capillaries
done
clear
D)
nerves
done
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View Answer play_arrow
question_answer 124) Which of the following are examples of vestigial structures in man ?
A)
Wisdom tooth, head, nails
done
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B)
Wisdom tooth, vermiform appendix, hair
done
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C)
Wisdom tooth, vermiform appendix, coccyx
done
clear
D)
All of the above
done
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View Answer play_arrow
question_answer 125) Immunoglobulins are made up of :
A)
two polypeptide chains
done
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B)
four polypeptide chains
done
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C)
three amino acids only
done
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D)
five nucleotides
done
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View Answer play_arrow
question_answer 126) Which of the following disorders can be regarded as madness?
A)
Psychosis
done
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B)
Epilepsy
done
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C)
Insomnia
done
clear
D)
Parkinsonism
done
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View Answer play_arrow
question_answer 127) Vitamin D is produced in human body by:
A)
musjdes
done
clear
B)
skin
done
clear
C)
nerves
done
clear
D)
none of these
done
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View Answer play_arrow
question_answer 128) Common characteristics of mosquitoes, houseflies and cockroaches are :
A)
one pair each of wings and halters
done
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B)
three pair of legs and one pair of developed wings
done
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C)
two pair of legs and two compound eyes
done
clear
D)
compound and simple eyes
done
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View Answer play_arrow
question_answer 129) Most recent insecticides in India are :
A)
chlorinated hydrocarbons
done
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B)
organo phosphorus compounds
done
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C)
carbamides
done
clear
D)
pyrethroids
done
clear
View Answer play_arrow
question_answer 130) Tube feet are locomotory organs in :
A)
Annelida
done
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B)
Mollusca
done
clear
C)
Echinodermata
done
clear
D)
Arthropoda
done
clear
View Answer play_arrow
question_answer 131) Ozone depletion in stratosphere shall result in :
A)
forest fires
done
clear
B)
green house effect
done
clear
C)
global warming
done
clear
D)
increased incidence of skin cancer
done
clear
View Answer play_arrow
question_answer 132) Acetabulum is the cavity of :
A)
pelvic girdle of frog
done
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B)
sternum of frog
done
clear
C)
pectoral girdle of frog
done
clear
D)
all of the above
done
clear
View Answer play_arrow
question_answer 133) Which of the following is a pair of analogous organs ?
A)
Contractile vacuole in Amoeba and uriniferous tubule in frog
done
clear
B)
Paddle of whale and front legs of horse
done
clear
C)
Mouth parts in insects
done
clear
D)
Fore limbs in lizard and wings in birds
done
clear
View Answer play_arrow
question_answer 134) Role of typhlosole in earthworm is to :
A)
control blood flow
done
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B)
increase absorptive surface area
done
clear
C)
produce digestive enzymes
done
clear
D)
crush food
done
clear
View Answer play_arrow
question_answer 135) National wild life protection act was formulated during :
A)
1972
done
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B)
1973
done
clear
C)
1952
done
clear
D)
1992
done
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View Answer play_arrow
question_answer 136) Glucagori is secreted by :
A)
adrenal medulla
done
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B)
P cells of islets of Langerhans
done
clear
C)
a cells of islets of Langerhans
done
clear
D)
adrenal cortex
done
clear
View Answer play_arrow
question_answer 137) Scala tympani is connected to scala vestibuli by :
A)
stapes
done
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B)
space of nuel
done
clear
C)
helicoterma
done
clear
D)
basilar membrane
done
clear
View Answer play_arrow
question_answer 138) Eurythermal animals and plants are those :
A)
which can tolerate only a small variation in temperature
done
clear
B)
which can tolerate large variation in temperature
done
clear
C)
which cannot tolerate any change in temperature
done
clear
D)
which are affected by temperature
done
clear
View Answer play_arrow
question_answer 139) Ammoniogenesis is process of :
A)
production of \[N{{H}_{3}}\] in liver
done
clear
B)
excretion of ammonia by tadpole of frog
done
clear
C)
exchange of \[N{{a}^{+}}\] for \[N{{H}_{3}}\]
done
clear
D)
none of the above
done
clear
View Answer play_arrow
question_answer 140) Mollusc which does not have ink gland is :
A)
Pila
done
clear
B)
Loligo
done
clear
C)
Sepia
done
clear
D)
Octopus
done
clear
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question_answer 141) If number of chromosomes in foot of fern embryo is 8, what should be the number in its spores ?
A)
4
done
clear
B)
8
done
clear
C)
23
done
clear
D)
16
done
clear
View Answer play_arrow
question_answer 142) Casparian strips are characteristic of :
A)
endodermis
done
clear
B)
epidermis
done
clear
C)
epiblema
done
clear
D)
xylem vessels
done
clear
View Answer play_arrow
question_answer 143) Which is true for meristematic tissue ?
A)
Their cells have dense cytoplasm and prominent nuclei
done
clear
B)
Their cells are dead with large intercellular spaces
done
clear
C)
These are usually modified for storage
done
clear
D)
Their cells are most primitive, living and without nuclei
done
clear
View Answer play_arrow
question_answer 144) When funicle, chalaza and micropyle lie in one straight line or lie in same longitudinal axis the ovule is called :
A)
Anatropous
done
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B)
Orthotropous
done
clear
C)
Amphitropous
done
clear
D)
Campylotropous
done
clear
View Answer play_arrow
question_answer 145) In Funaria dispersal of spores is achieved with the help of :
A)
columella
done
clear
B)
calyptra
done
clear
C)
peristome
done
clear
D)
elaters
done
clear
View Answer play_arrow
question_answer 146) In Finns the endosperm is :
A)
haploid
done
clear
B)
diploid
done
clear
C)
triploid
done
clear
D)
teteraploid
done
clear
View Answer play_arrow
question_answer 147) Chipko Movement is related to :
A)
plant conservation
done
clear
B)
project tiger
done
clear
C)
animal breeding
done
clear
D)
operation flood
done
clear
View Answer play_arrow
question_answer 148) In the following there is no difference :
A)
trophic level 1st and herbivores
done
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B)
primary consumers and herbivores
done
clear
C)
primary carnivore and trophic level IInd
done
clear
D)
secondary consumer and herbivores
done
clear
View Answer play_arrow
question_answer 149) Simondosia chinensis is commonly known as :
A)
amia
done
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B)
poppy
done
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C)
teak wood
done
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D)
jojoba
done
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View Answer play_arrow
question_answer 150) Tulsi belongs to family :
A)
Asclepiadaceae
done
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B)
Labiatae
done
clear
C)
Umbelliferae
done
clear
D)
Rubiaceae
done
clear
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question_answer 151) Plasmid is :
A)
bacteriophage
done
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B)
DNA molecule incorporated, in bacterial chromosome
done
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C)
DNA molecule present in mitochondria
done
clear
D)
extra chromosomal genetic element of bacteria
done
clear
View Answer play_arrow
question_answer 152) Plant and animal cells, both have in common :
A)
cell membrane and nucleolus
done
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B)
cell membrane and cell wall
done
clear
C)
nucleolus and chlorpplast
done
clear
D)
nucleus and cell wall
done
clear
View Answer play_arrow
question_answer 153) Gibberellins cause :
A)
shortening of genetically tall plants
done
clear
B)
elongation of genetically dwarf plants
done
clear
C)
promotion of rooting
done
clear
D)
yellowing of young leaves
done
clear
View Answer play_arrow
question_answer 154) Which of the following is associated with synthesis of enzymes ?
A)
Translation
done
clear
B)
Replication
done
clear
C)
Transduction
done
clear
D)
Transformation
done
clear
View Answer play_arrow
question_answer 155) During anaerobic respiration in yeast :
A)
\[{{H}_{2}}O\] and \[C{{O}_{2}}\] are end products
done
clear
B)
\[C{{O}_{2}}\], ethanol and energy are end products
done
clear
C)
\[C{{O}_{2}}\] and \[{{H}_{2}}O\] are end products
done
clear
D)
\[C{{O}_{2}}\], acetic acid and energy are end products
done
clear
View Answer play_arrow
question_answer 156) Hatch and Slack cycle is found in :
A)
\[{{C}_{4}}\] plants
done
clear
B)
\[{{C}_{3}}\]plants
done
clear
C)
both a and b
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 157) The site of protein synthesis is :
A)
smooth E.R
done
clear
B)
rough E.R
done
clear
C)
plasmalemma
done
clear
D)
nucleus
done
clear
View Answer play_arrow
question_answer 158) The modern concept of gene is :
A)
a segment of DNA, capable of crossing over
done
clear
B)
functional unit of DNA
done
clear
C)
a segment of RNA
done
clear
D)
a segment of chromosome
done
clear
View Answer play_arrow
question_answer 159) The disease Oriental sore is caused by :
A)
bacteria
done
clear
B)
virus
done
clear
C)
protozoa
done
clear
D)
fungus
done
clear
View Answer play_arrow
question_answer 160) Viroids differ from viruses in having :
A)
naked RNA molecules only
done
clear
B)
naked DNA molecules only
done
clear
C)
naked DNA packed with viral genome
done
clear
D)
satellite RNA packed with viral genome
done
clear
View Answer play_arrow
question_answer 161) Quantum yield of photosynthesis is :
A)
33%
done
clear
B)
9%
done
clear
C)
12%
done
clear
D)
8%
done
clear
View Answer play_arrow
question_answer 162) Guttation is manifestation of :
A)
osmosis
done
clear
B)
transpiration
done
clear
C)
root pressure
done
clear
D)
photosynthesis
done
clear
View Answer play_arrow
question_answer 163) Water rises in the stem due to :
A)
cohesion and transpirational pull
done
clear
B)
turgor pressure
done
clear
C)
osmotic pressure
done
clear
D)
root absorption
done
clear
View Answer play_arrow
question_answer 164) Pensom and Jones suggested which of the following method for translocation of solute ?
A)
Osmosis
done
clear
B)
Plasmolysis
done
clear
C)
Diffusion
done
clear
D)
Electro-osmosis
done
clear
View Answer play_arrow
question_answer 165) Glycolysis is a part of :
A)
anaerobic respiration only
done
clear
B)
aerobic respiration only
done
clear
C)
both a and b
done
clear
D)
Krebs cycle
done
clear
View Answer play_arrow
question_answer 166) Which of the following movements in plants is not related to change in auxin level?
A)
Nyctinastic leaf movement
done
clear
B)
Movement of root towards soil
done
clear
C)
Movement of sunflower, tracking the direction of sun
done
clear
D)
Movement of shoot towards light
done
clear
View Answer play_arrow
question_answer 167) The waxy substance associated with cell wall of cork cells is :
A)
suberin
done
clear
B)
cutin
done
clear
C)
hemicelluloses
done
clear
D)
Ugnin
done
clear
View Answer play_arrow
question_answer 168) In which of the following there is no differentiation of bark, sap wood and heart wood ?
A)
Ashok
done
clear
B)
Neem
done
clear
C)
Mango
done
clear
D)
Datepalm
done
clear
View Answer play_arrow
question_answer 169) An auxotroph is :
A)
a plant that responds by bending towards sun
done
clear
B)
an organism that depends on another organism for meeting its nutritional requirements
done
clear
C)
a mutant which has lost its ability to synthesize one or more essential compounds
done
clear
D)
a plant that is able to synthesize its own carbohydrate
done
clear
View Answer play_arrow
question_answer 170) In plants vacuole contains :
A)
soil
done
clear
B)
water and dissolved substance
done
clear
C)
cytoplasm
done
clear
D)
all of the above
done
clear
View Answer play_arrow
question_answer 171) The number of base pairs per helical turn in Z-DNA is :
A)
10
done
clear
B)
11
done
clear
C)
12
done
clear
D)
13
done
clear
View Answer play_arrow
question_answer 172) In mushroom gills are meant for :
A)
respiration
done
clear
B)
nutrition
done
clear
C)
bears spores which help in reproduction
done
clear
D)
enhancing buoyancy
done
clear
View Answer play_arrow
question_answer 173) Which of the following cause disease in human beings?
A)
Rhizopus
done
clear
B)
Puccinia
done
clear
C)
Aspergillus
done
clear
D)
Cystopus
done
clear
View Answer play_arrow
question_answer 174) Heterosporous pteridophytes always produce :
A)
monoecious gametophytes
done
clear
B)
dioecious gametophytes
done
clear
C)
homothallic gametophyte
done
clear
D)
none of the above
done
clear
View Answer play_arrow
question_answer 175) Term meiosis was proposed by :
A)
Fanner and Moore
done
clear
B)
Flemming
done
clear
C)
Strasburger
done
clear
D)
Darlington
done
clear
View Answer play_arrow
question_answer 176) In somatic cells DNA synthesis takes place during :
A)
S-phase
done
clear
B)
\[{{G}_{1}}\] phase
done
clear
C)
\[{{G}_{2}}\]phase
done
clear
D)
Prophase of mitosis
done
clear
View Answer play_arrow
question_answer 177) Edible portion of mango is :
A)
endocarp
done
clear
B)
mesocarp
done
clear
C)
cotyledons
done
clear
D)
endosperm
done
clear
View Answer play_arrow
question_answer 178) Pigment that absorbs red and far red light is :
A)
phytochrome
done
clear
B)
cytochrome
done
clear
C)
carotene
done
clear
D)
xanthophylls
done
clear
View Answer play_arrow
question_answer 179) Inheritance of characters not located in the gene but the young one resembling only the female part is due to :
A)
cytoplasmic inheritance
done
clear
B)
chromosomal inheritance
done
clear
C)
plastid inheritance
done
clear
D)
epigenesist
done
clear
View Answer play_arrow
question_answer 180) Okazaki fragments are produced during the synthesis of :
A)
m-RNA
done
clear
B)
Protein
done
clear
C)
t-WA
done
clear
D)
DNA
done
clear
View Answer play_arrow
question_answer 181) The second meiotic division leads to :
A)
separation of sex chromosomes
done
clear
B)
fresh DNA synthesis
done
clear
C)
separation of chromatids and centromere
done
clear
D)
separation of homologous chromosomes
done
clear
View Answer play_arrow
question_answer 182) The true stomach in ruminants where most of digestion take place is :
A)
rumen
done
clear
B)
omasum
done
clear
C)
reticulum
done
clear
D)
abomasums
done
clear
View Answer play_arrow
question_answer 183) Which of the following cells are related with inflammatory reactions and immediate hypersensitivity?
A)
Mast cells
done
clear
B)
Plasma cells
done
clear
C)
Tebroblast cells
done
clear
D)
All of these
done
clear
View Answer play_arrow
question_answer 184) In which pneumatophores are found?
A)
Tinospora
done
clear
B)
Finns
done
clear
C)
Rhizophora
done
clear
D)
None of these
done
clear
View Answer play_arrow
question_answer 185) Glyoxylate cycle occurs in :
A)
lysosomes
done
clear
B)
ribosomes
done
clear
C)
glyoxysomes
done
clear
D)
peroxisomes
done
clear
View Answer play_arrow
question_answer 186) Axolotal is name given to larva of :
A)
Roundworm
done
clear
B)
Amphioxus
done
clear
C)
Ambylostoma
done
clear
D)
Silkworm
done
clear
View Answer play_arrow
question_answer 187) Polygonim type of embryosac is :
A)
8 celled 8 nucleate
done
clear
B)
7 celled 8 nucleate
done
clear
C)
7 nucleate 8 celled
done
clear
D)
A female gamete
done
clear
View Answer play_arrow
question_answer 188) Photorespiration could easily by detected in :
A)
\[{{C}_{3}}\]plants
done
clear
B)
\[{{C}_{4}}\]plants
done
clear
C)
both a and b
done
clear
D)
none of the above
done
clear
View Answer play_arrow
question_answer 189) Quiescent centre theory was proposed by:
A)
Nagelli
done
clear
B)
Schmidt
done
clear
C)
Hanstein
done
clear
D)
Clowes
done
clear
View Answer play_arrow
question_answer 190) In which of the following tissue preparations signet ring appearance is obtained?
A)
Apithelial tissue
done
clear
B)
Dense connective tissue
done
clear
C)
Adipose tissue
done
clear
D)
Reticular tissue
done
clear
View Answer play_arrow
question_answer 191) Scion is term related to :
A)
Embryology
done
clear
B)
Emasculation
done
clear
C)
Grafting
done
clear
D)
Palaeobotany
done
clear
View Answer play_arrow
question_answer 192) Which gland in female is a counter part of Cowper gland in male ?
A)
Bartholin gland
done
clear
B)
Clatoris
done
clear
C)
Perineal gland
done
clear
D)
None of these
done
clear
View Answer play_arrow
question_answer 193) Correct sequence of electron acceptor of ATP synthesis is :
A)
Cyt \[a,\text{ }{{a}_{3}},\text{ }b,\text{ }c\]
done
clear
B)
Cyt \[b,\text{ }c,\text{ }a,\text{ }{{a}_{3}}\]
done
clear
C)
Cyt \[b,\text{ }c,\text{ }{{a}_{3}},\text{ }a\]
done
clear
D)
Cyt \[c,\text{ }b,a,\text{ }{{a}_{3}}\]
done
clear
View Answer play_arrow
question_answer 194) Regulation to restrict the movement of diseased plant material from one place to another are called :
A)
plant regulations
done
clear
B)
plant quarantine
done
clear
C)
plant protection
done
clear
D)
crop rotation
done
clear
View Answer play_arrow
question_answer 195) The name of first cloned sheep is :
A)
Dolly
done
clear
B)
Polly
done
clear
C)
Molley
done
clear
D)
Holly
done
clear
View Answer play_arrow
question_answer 196) Which of the following are symptoms of radiation desease?
A)
Red and ulcered skin
done
clear
B)
Nausea and loss of hair
done
clear
C)
Nausea and anaemia
done
clear
D)
Ulcered skin, anaemia, nausea and loss of hair
done
clear
View Answer play_arrow
question_answer 197) What is the generic name of Portugese man of war.
A)
Aurelia
done
clear
B)
Obelia
done
clear
C)
Physalia
done
clear
D)
Velella
done
clear
View Answer play_arrow
question_answer 198) Endemic plants are those which are :
A)
cosmopolition in distribution
done
clear
B)
restricted to grow over certain areas
done
clear
C)
found in artic region
done
clear
D)
gregarious in habit
done
clear
View Answer play_arrow
question_answer 199) Sigma factor is related to :
A)
RNA polymerase
done
clear
B)
DNA polymerase
done
clear
C)
both a and b
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 200) Double fertilization is a characteristic of :
A)
angiosperms
done
clear
B)
gymnosperms
done
clear
C)
thallophytes
done
clear
D)
all plants
done
clear
View Answer play_arrow
question_answer 201) Which one of the following is correctly matched regarding an Institute and its location?
A)
National Institute of -Pune Virology
done
clear
B)
National Institute of -Lucknow Communicable disease
done
clear
C)
Central Drug Research -Kasauli Institute
done
clear
D)
National Institute of -Mumbai Nutrition
done
clear
View Answer play_arrow
question_answer 202) Electron beam therapy is a kind of radiation therapy to treat :
A)
enlarged prostate gland
done
clear
B)
gall bladder stones by breaking them
done
clear
C)
certain types of cancer
done
clear
D)
kidney stones
done
clear
View Answer play_arrow
question_answer 203) Severe Acute Respiratory Syndrome (SARS) :
A)
is caused by a variant of Pneumococcus pneumonia
done
clear
B)
is caused by a variant of the common cold virus (corona virus)
done
clear
C)
is an acute form of asthma
done
clear
D)
affects non-vegetarians much faster than the vegetarians
done
clear
View Answer play_arrow
question_answer 204) Cattle fed with spoilt hay to sweet clover which contains dicumarol
A)
are healthier due to a good diet
done
clear
B)
catch infections easily
done
clear
C)
may suffer vitamin K deficiency and prolonged bleeding
done
clear
D)
may suffer from beri-beri due to deficiency of vitamin-B
done
clear
View Answer play_arrow
question_answer 205) If the Bengal Tiger becomes extinct :
A)
hyenas and wolves will become scars
done
clear
B)
the wild areas will be safe for man and domestic animals
done
clear
C)
its gene pool will be lost for ever
done
clear
D)
the populations of beautiful animals like deers will get stabilized
done
clear
View Answer play_arrow
question_answer 206) Nitrogen oxides produced from the emission of automobiles and power plants, are the source of fine air borne particles which Jead to :
A)
photochemical smog
done
clear
B)
dry acid deposition
done
clear
C)
industrial smog
done
clear
D)
wet acid deposition
done
clear
View Answer play_arrow
question_answer 207) A lake with an inflow of domestic sewage rich in organic waste may result in :
A)
drying of the lake very soon due to algal bloom
done
clear
B)
an increased production of fish due to lot of nutrients
done
clear
C)
death of fish due to lack of oxygen
done
clear
D)
increased population of aquatic food web organisms
done
clear
View Answer play_arrow
question_answer 208) Minimata disease was caused due to the consumption of :
A)
sea food containing lot of cadmium
done
clear
B)
fish contaminated with mercury
done
clear
C)
oysters with lot of pesticide
done
clear
D)
sea food contaminated with selenium
done
clear
View Answer play_arrow
question_answer 209) An artificial pace maker is implanted subcutaneously and connected to the heart in patients :
A)
having 90% blockage of the three main coronary arteries
done
clear
B)
having a very high blood pressure
done
clear
C)
with irregularity in the heart rhythm
done
clear
D)
suffering from arteriosclerosis
done
clear
View Answer play_arrow
question_answer 210) An example of gene therapy is :
A)
production of in jectable hepatitis B vaccine
done
clear
B)
production of vaccines in food crops like potatoes which can be eaten
done
clear
C)
introduction of gene for adenosine deaminase in persons suffering from Severe Combined Immuno deficiency (SCID)
done
clear
D)
production of test tube babies by artificial insemination and implantation of fertilized eggs
done
clear
View Answer play_arrow
question_answer 211) The pollen tube usually enters the embryo sac :
A)
between the egg cell and synergid
done
clear
B)
by directly penetrating the egg
done
clear
C)
between one synergid and antipodal cell
done
clear
D)
by knocking off the antipodal cells
done
clear
View Answer play_arrow
question_answer 212) What is the first step in the Southern blot technique ?
A)
Denaturation of DNA on the gel for hybridization with specific probe
done
clear
B)
Production of a group of genetically identical cells
done
clear
C)
Digestion of DNA by restriction enzyme
done
clear
D)
Denaturation of DNA from a nucleated cell such as the one from the scene of crime
done
clear
View Answer play_arrow
question_answer 213) Women who consumed the drug thalidomide for relief from vomiting during early months of pregnancy gave birth to children with :
A)
no spleen
done
clear
B)
hare-lip
done
clear
C)
extra fingers and toes
done
clear
D)
under developed limbs
done
clear
View Answer play_arrow
question_answer 214) The neem extract contains :
A)
Nicatine
done
clear
B)
Cinerine
done
clear
C)
Pyrethrin
done
clear
D)
Azadiractin
done
clear
View Answer play_arrow
question_answer 215) Which of the following type of mutation involves the reverse order of genes in a chromosome :
A)
deletion
done
clear
B)
duplication
done
clear
C)
inversion
done
clear
D)
reciprocal translocation
done
clear
View Answer play_arrow
question_answer 216) Which one of the following pairs is correctly matched with regard to the codon and the ammo acid coded by it?
A)
UUA- valine
done
clear
B)
AAA- lysine
done
clear
C)
AUG- cysteine
done
clear
D)
CCC- alanine
done
clear
View Answer play_arrow
question_answer 217) The treatment of snake-bite by antivenine is an example of :
A)
artificially acquired active immunity
done
clear
B)
artificially acquired passive immunity
done
clear
C)
naturally acquired passive immunity
done
clear
D)
specific natural immunity
done
clear
View Answer play_arrow
question_answer 218) The bacteria Psendonionas is useful because of its ability to :
A)
transfer genes from one plant to another
done
clear
B)
decompose a variety of organic compounds
done
clear
C)
fix atmospheric nitrogen in the soil
done
clear
D)
produce a wide variety of antibiotics
done
clear
View Answer play_arrow
question_answer 219) DNA is present in :
A)
chromosomes and dictyosomes
done
clear
B)
chloroplasts and lysosomes
done
clear
C)
mitochondria and chloroplasts
done
clear
D)
mitochondria and endoplasmic reticulum
done
clear
View Answer play_arrow
question_answer 220) Priming of plants promotes brandling because the axillary buds get sensitized to :
A)
ethylcne
done
clear
B)
gibberellin
done
clear
C)
cytokinin
done
clear
D)
indole acetic acid
done
clear
View Answer play_arrow
question_answer 221) The sugarcane plant has :
A)
dumb-bell shaped guard cells
done
clear
B)
pentamerous flowers
done
clear
C)
reticulate venation
done
clear
D)
capsular fruits
done
clear
View Answer play_arrow
question_answer 222) Potato and sweet potato :
A)
have edible parts which are homologous organs
done
clear
B)
have edible parts which are analogous organs
done
clear
C)
have been introduced in India from the same place
done
clear
D)
are two species of the same genus
done
clear
View Answer play_arrow
question_answer 223) In Ulothrix meiosis takes place in :
A)
cells of the filament
done
clear
B)
holdfast
done
clear
C)
zygote
done
clear
D)
zoospores
done
clear
View Answer play_arrow
question_answer 224) In a plant organ which is covered by periderm and in which the stomata are absent, some gaseous exchange still takes place through :
A)
aerenchyma
done
clear
B)
crichomes
done
clear
C)
pneumatophores
done
clear
D)
lenticels
done
clear
View Answer play_arrow
question_answer 225) Somaclonal variation can be obtained by:
A)
application of colchicine
done
clear
B)
irradiation with gamma rays
done
clear
C)
tissue culture
done
clear
D)
hybridization
done
clear
View Answer play_arrow
question_answer 226) If the high altitude birds become rare or extinct the plants which may disappear along with them are :
A)
pine
done
clear
B)
oak
done
clear
C)
orchids
done
clear
D)
rhododendrons
done
clear
View Answer play_arrow
question_answer 227) Companion cells in plants are associated with :
A)
vessels
done
clear
B)
sperms
done
clear
C)
sieve elements
done
clear
D)
guard cells
done
clear
View Answer play_arrow
question_answer 228) Mosses and ferns are found in moist and shady places because both :
A)
require presence of -water for fertilization
done
clear
B)
do not need sunlight for photosynthesis
done
clear
C)
depend for their nutrition on microoganisms which can survive only at low temperature
done
clear
D)
cannot compete with sun-loving plants Cork cambium results in the formation of cork which becomes impermeable to
done
clear
View Answer play_arrow
question_answer 229) water due to the accumulation of :
A)
resins
done
clear
B)
suberin
done
clear
C)
lignins
done
clear
D)
tannins
done
clear
View Answer play_arrow
question_answer 230)
How many different types of gametes can be formed by progeny, resulting from the following cross? ?
A)
3
done
clear
B)
8
done
clear
C)
27
done
clear
D)
64
done
clear
View Answer play_arrow
question_answer 231) Cultivation of Bt cotton has been much in the news. The prefix Bt means :
A)
Barium-treated cotton seeds
done
clear
B)
Bigger thread variety of cotton with better tensile strength
done
clear
C)
produced by biotechnology using restriction enzymes and ligases
done
clear
D)
carrying an endotoxin gene from Bacillus thuringiensis
done
clear
View Answer play_arrow
question_answer 232) Which one feature is common to leech, cockroach and scorpion ?
A)
Nephridia
done
clear
B)
Ventral nerve cord
done
clear
C)
Cephalization
done
clear
D)
Antennae
done
clear
View Answer play_arrow
question_answer 233) Unidirectional transmission of a nerve impulse through nerve fibre is due to the fact that :
A)
nerve fibre is insulated by a medullary sheath
done
clear
B)
sodium pump starts operating only a-t the cyton and then continues into the nerve fibre
done
clear
C)
neurotransmitters are released by dendrites and not by axon endings
done
clear
D)
neurotransmitters are released by the axon endings and not by dendrites
done
clear
View Answer play_arrow
question_answer 234) The total number of nitrogenous bases in human genome is estimated to be about:
A)
3.5 million
done
clear
B)
35 thousand
done
clear
C)
35 million
done
clear
D)
3.1 billion
done
clear
View Answer play_arrow
question_answer 235) The great barrier reef along the east coast of Australia can be categorised as :
A)
population
done
clear
B)
community
done
clear
C)
ecosystem
done
clear
D)
biome
done
clear
View Answer play_arrow
question_answer 236) Which one of the following is a pair of endangered species ?
A)
Garden lizard and Mexican poppy
done
clear
B)
Rhesus monkey and sal tree
done
clear
C)
Indian peacock and carrot grass
done
clear
D)
Hornbill and Indian aconite
done
clear
View Answer play_arrow
question_answer 237) Which one of the following is a matching pair of a drug and its category ?
A)
Amphetamines -stimulant
done
clear
B)
Lysergic acid -narcotic dimethyl amide
done
clear
C)
Heroin -psychotropic
done
clear
D)
Benzodiazepam -pain killer
done
clear
View Answer play_arrow
question_answer 238) In which one of the following pairs the two items mean one and the same thing ?
A)
Malleus -anvil
done
clear
B)
SA node-pace maker
done
clear
C)
Leucocytes-lymphocytes
done
clear
D)
Haemophilia-blood cancer
done
clear
View Answer play_arrow
question_answer 239) Which one of the following categories of organisms do not evolve oxygen during photosynthesis ?
A)
Red algae
done
clear
B)
Photosynthetic bacteria
done
clear
C)
plants with Kranz anatomy
done
clear
D)
Blue green algae
done
clear
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question_answer 240) A baby has been born with a small tail. It is the case exhibiting :
A)
retrogressive evolution
done
clear
B)
mutation
done
clear
C)
atavism
done
clear
D)
metamorphosis
done
clear
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question_answer 241) Assertion: Agricultural output increased several times after introduction of DDT. Reason: DDT was the first insecticide used on a wide scale.
A)
A
done
clear
B)
B
done
clear
C)
C
done
clear
D)
D
done
clear
E)
E
done
clear
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question_answer 242) Assertion: Diabetes in sipidus is marked by excessive urination and too much thirst of water. Reason: Anti-diuretic hormone (ADH) is secreted by the posterior lobe of pituitary gland.
A)
A
done
clear
B)
B
done
clear
C)
C
done
clear
D)
D
done
clear
E)
E
done
clear
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question_answer 243) Assertion: Coacervates are believed to be the precursors of life. Reason: Coacervates were self-duplicating aggregates of proteins surrounded by lipid molecules.
A)
A
done
clear
B)
B
done
clear
C)
C
done
clear
D)
D
done
clear
E)
E
done
clear
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question_answer 244) Assertion: Tapeworm roundworm and pinworm are endoparasites of human intestine. Reason: Improperly cooked food is the source of intestinal infections.
A)
A
done
clear
B)
B
done
clear
C)
C
done
clear
D)
D
done
clear
E)
E
done
clear
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question_answer 245) Assertion: Fish meal is a rich source of protein for cattle and poultry. Reason: Fish meal is produced from non-edible parts of fishes like fins, tail etc.
A)
A
done
clear
B)
B
done
clear
C)
C
done
clear
D)
D
done
clear
E)
E
done
clear
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question_answer 246) Assertion: Animals adopt different strategies to survive in hostile environment. Reason: Praying mantis is green in colour which merges with plant foliage.
A)
A
done
clear
B)
B
done
clear
C)
C
done
clear
D)
D
done
clear
E)
E
done
clear
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question_answer 247) Assertion: Among the primates, chimpanzee is the closest relative of the present day humans. Reason : The banding pattern in the autosome numbers 3 and 6 of man and chimpanzee is remarkably similar.
A)
A
done
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B)
B
done
clear
C)
C
done
clear
D)
D
done
clear
E)
E
done
clear
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question_answer 248) Assertion : Dope test is used to estimate the level of blood alcohol by analyzing the breath of persons drinking alcohol. Reason : A drunken person usually feels tense and less talkative.
A)
A
done
clear
B)
B
done
clear
C)
C
done
clear
D)
D
done
clear
E)
E
done
clear
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question_answer 249) Assertion: The honey bee queen copulates only ones in her life time. Reason: The honey bee queen can lay fertilized as well as unfertilized eggs.
A)
A
done
clear
B)
B
done
clear
C)
C
done
clear
D)
D
done
clear
E)
E
done
clear
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question_answer 250) Assertion: From evolutionary point of view, human gestation period is believed to be shortening. Reason: One major evolutionary trend in humans has been the larger head undergoing relatively faster growth rate in the foetal stage.
A)
A
done
clear
B)
B
done
clear
C)
C
done
clear
D)
D
done
clear
E)
E
done
clear
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