question_answer 1) A point on the rim of a wheel 400 cm in diameter has a velocity of 1600 cm/s. The angular velocity of the wheel is:
A)
6 rad/s
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B)
4 rad/s
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C)
2 rad/s
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D)
8 rad/s
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question_answer 2) Earth is flattened at poles, bulged at the equator. This is due to:
A)
the angular velocity of spinning about its axis is less at the equator
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B)
the angular velocity of spinning about its axis is more at the equator
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C)
the centrifugal force is more at the equator than at the poles
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D)
earth revolve round the sun in an elliptic orbit
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question_answer 3) The radius vector drawn from the sun to a planet sweeps out...... areas in equal time:
A)
exponential
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B)
equal
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C)
unequal
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D)
zero
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question_answer 4) The escape velocity of a sphere of mass m is given by (G = universal gravitational constant, M = mass of the earth, Re = radius of the earth):
A)
\[\sqrt{\frac{2R{{M}_{e}}}{{{R}_{e}}}}\]
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B)
\[\sqrt{\frac{2G{{M}_{e}}m}{{{R}_{e}}}}\]
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C)
\[\sqrt{\frac{G{{M}_{e}}}{{{R}_{e}}}}\]
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D)
\[\sqrt{\frac{GM}{{{R}_{e}}}}\]
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question_answer 5) The linear acceleration of the centre of gravity of a ball which rolls down without slipping down an inclined plane with an angle of inclination of \[30{}^\circ \] will be:
A)
\[2.44m/{{s}^{2}}\]
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B)
\[4.9m/{{s}^{2}}\]
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C)
\[3.27m/{{s}^{2}}\]
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D)
\[3.5m/{{s}^{2}}\]
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question_answer 6) Pick out the correct statement regarding acceleration due to gravity:
A)
it increases with height above the earth surface
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B)
it is affected by the earths rotation
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C)
it is more at the equator than at the poles
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D)
in increases with depth from the earths surface
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question_answer 7) A simple pendulum from earth is shifted on to moon (g = 1/6 g). For 1 minute on earth, the time on moon as measured by this pendulum is (in second):
A)
30.6
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B)
147
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C)
10.5
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D)
60.0
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question_answer 8) The time period of a simple pendulum is 2 s. If its length is increased by 4 times, the period becomes:
A)
6 s
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B)
2 s
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C)
8 s
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D)
4 s
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question_answer 9) According to Hooks law of elasticity, the ratio of stress to strain:
A)
remains constant
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B)
increases
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C)
decreases
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D)
zero
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question_answer 10) Depth of water at which air bubble of radius 0.4 mm may remain in equilibrium (surface tension of water \[=72\times {{10}^{-3}}N/m,\] acceleration due to gravity\[=\text{ }9.8\text{ }m/{{s}^{2}}\]):
A)
7.3 cm
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B)
0.9 cm
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C)
1.8 cm
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D)
3.6 cm
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question_answer 11) If the unit of length, mass and time each is doubled, the unit of work is increased by:
A)
2 times
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B)
6 times
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C)
4 times
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D)
8 times
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question_answer 12) Dimensional formula of \[\frac{{{e}^{4}}}{{{\varepsilon }_{0}}^{2}{{m}_{p}}{{m}_{e}}^{2}{{c}^{2}}G}\] is: (where e = charge, \[{{m}_{p}}\]and \[{{m}_{e}}\], are masses \[{{\varepsilon }_{0}}=\] permittivity of free space, c = velocity of light and G = gravitational constant):
A)
[M]
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B)
[T]
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C)
[\[\pi \]]
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D)
[I4 T2 M]
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question_answer 13) Two vectors of same magnitude have a resultant equal to either, then the angle between the vectors will be:
A)
\[20{}^\circ \]
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B)
\[135{}^\circ \]
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C)
\[120{}^\circ \]
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D)
\[45{}^\circ \]
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question_answer 14) A bus accelerates uniformly from rest and acquires a speed of 36 km/h in 10 second. The acceleration is:
A)
\[1000\text{ }m/{{s}^{2}}\]
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B)
\[\text{1 }m/{{s}^{2}}\]
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C)
\[100\text{ }m/{{s}^{2}}\]
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D)
\[10\text{ }m/{{s}^{2}}\]
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question_answer 15) A stone is thrown vertically up from the ground. It reaches a maximum height of 5C metre in 10 sec. After what time it will reach the ground from the maximum height position?
A)
1.20 s
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B)
5 s
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C)
10 s
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D)
25 s
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question_answer 16) A body thrown up with a velocity reaches a maximum height of 50 m. Another body with double the mass thrown up. With double the initial velocity will reach a maximum height of:
A)
100 m
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B)
200 m
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C)
10 m
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D)
400 m
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question_answer 17) A body p moving with a velocity of 20 km. 5 collides with other body Q of the same mass at rest. If after collision p comes to rest. What is the velocity of the body Q?
A)
30 km/s
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B)
20 km/s
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C)
10 km/s
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D)
40 km/s
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question_answer 18) A brick of mass 2 kg just begins to slide down an inclined plane at an angle of 45 s with the horizontal. The force of friction will be:
A)
\[19.6\text{ }cos\text{ }45{}^\circ \]
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B)
\[19.6\text{ }sin\text{ }45{}^\circ \]
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C)
\[9.8\text{ }sin\text{ }45{}^\circ \]
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D)
\[9.8\text{ }cos\text{ }45{}^\circ \]
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question_answer 19) A 30 kg box has to move up an inclined slope of \[30{}^\circ \] to the horizontal at a uniform velocity of 5 m/s. If the frictional force retarding the motion is 250 N the horizontal force in newtons to move up is\[(g=10\text{ }m/{{s}^{2}})\]:
A)
400 \[\sqrt{2}\]N
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B)
400 N
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C)
\[\frac{400\sqrt{3}}{2}N\]
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D)
\[400\times 2\sqrt{3}N\]
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question_answer 20) The angular speed of seconds hand in a mechanical watch in rad/s is:
A)
\[\pi \]/6
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B)
\[\pi \]/30
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C)
\[\pi \]/60
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D)
\[\pi \]/12
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question_answer 21) The lower end of a capillary. tube touches a liquid whose angle of contact is 90s. The liquid:
A)
will neither rise nor will fall inside the tube
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B)
will rise inside the tube
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C)
will rise to the top of the tube
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D)
will be depressed inside the tube
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question_answer 22) A capillary tube when immersed vertically in a liquid records a rise of 3 cm. If the tube is held immersed in the liquid at an angle of \[60{}^\circ \] with the vertical, the length of the liquid column along the tube will be:
A)
3 cm
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B)
2\[\sqrt{2}\]cm
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C)
15 cm
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D)
6 cm
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question_answer 23) The coefficient of volume expansion is:
A)
less than the coefficient of linear expansion
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B)
twice the coefficient of linear expansion
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C)
equal to the coefficient of linear expansion
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D)
thrice the coefficient of linear expansion
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question_answer 24) An ideal gas is heated from \[20{}^\circ C\] to \[40{}^\circ C\] under constant pressure. The change in internal energy is:
A)
zero under constant pressure
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B)
double the original value
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C)
proportional to change in volume
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D)
proportional to change in temperature
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question_answer 25) An object is cooled from \[75{}^\circ C\] to \[65{}^\circ C\] in 2 minute in a room at \[30{}^\circ C\]. The time taken to cool another object form \[55{}^\circ C\] to \[45{}^\circ C\] in the same room in minute is:
A)
4
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B)
5
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C)
6
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D)
7
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question_answer 26) The ratio of specific heats for oxygen is 1.4. Density of oxygen at STP \[=\text{ }1.44\text{ }kg/{{m}^{3}}.\] If atmospheric pressure is \[1.013\times {{10}^{5}}N/{{m}^{2}},\]the specific heat at constant volume is:
A)
\[257.7\text{ }J\text{ }k{{g}^{-1}}{{K}^{-1}}\]
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B)
\[644.3\text{ }J\text{ }k{{g}^{-1}}{{K}^{-1}}\]
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C)
\[8.36\text{ }J\text{ }k{{g}^{-1}}{{K}^{-1}}\]
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D)
\[901.2\text{ }J\text{ }k{{g}^{-1}}{{K}^{-1}}\]
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question_answer 27) Velocity of sound in air is:
A)
faster in dry air than in moist air
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B)
directly proportional to pressure
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C)
directly proportional to absolute temperature
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D)
independent of pressure changes when temperature remains constant
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question_answer 28) The shifted frequency due to Doppler effect when the source is moving towards the observer at rest, is:
A)
\[{{v}^{1}}=\left[ \frac{v-{{v}_{s}}}{v} \right]v\]
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B)
\[{{v}^{1}}=\left[ \frac{v-{{v}_{0}}}{v-{{v}_{s}}} \right]v\]
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C)
\[{{v}^{1}}=\left[ \frac{v}{v-{{v}_{s}}} \right]v\]
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D)
\[{{v}^{1}}=\left[ \frac{v}{v-{{v}_{s}}} \right]v\]
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question_answer 29) Two closed organ pipes, when sounded simultaneously give 4 beats per sec between fundamentals. The longer tube has length 1.0 metre. Length of the other one is in cm:
A)
80
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B)
90
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C)
95
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D)
85.5
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question_answer 30) In the determination of velocity of light by Focaults method, the minor is rotated at a speed of 300 rotations/second, and a concave mirror of radius of curvature 25 m is used. When the source is kept at 3 m from the lens and the rotating mirror at 10 m, a shift in the image is observed. If the velocity of light is \[3\times {{10}^{8}}m/s,\] the shift observed is:
A)
1.346 mm
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B)
0.212 mm
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C)
4.13 mm
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D)
2.12 mm
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question_answer 31) A prism of refracting angle \[60{}^\circ \] is made with a material of refractive index \[\mu \].For a certain wavelength of light, the angle of minimum deviation is \[30{}^\circ \]. For this wavelength, the value of u. of material is:
A)
1.820
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B)
1.503
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C)
1.414
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D)
1.731
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question_answer 32) The spectrum obtained from a sodium vapour lamp is an example for:
A)
band spectrum
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B)
continuous spectrum
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C)
emission spectrum
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D)
absorption spectrum
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question_answer 33) Two waves are said to be coherent, if they have:
A)
same frequency, different amplitude, same phase
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B)
same frequency, amplitude and phase
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C)
same frequency, amplitude but different phase
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D)
all different
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question_answer 34) For an isotropic medium B, H and I are related as (where B, \[{{\mu }_{0}}\] H and I have usual meaning in the context of magnetic material):
A)
B= \[{{\mu }_{0}}\] (H + I)
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B)
H=\[{{\mu }_{0}}\] (B + I)
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C)
I = \[{{\mu }_{0}}\] (B + H)
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D)
(B - I) = \[{{\mu }_{0}}\]H
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question_answer 35) The field along the axis at a point distance of a short bar magnet is:
A)
\[I=\frac{{{\mu }_{0}}M}{4\pi {{d}^{2}}}\]
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B)
\[I=\frac{{{\mu }_{0}}^{2}M}{4\pi {{d}^{3}}}\]
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C)
\[I=\frac{3{{\mu }_{0}}M}{2\pi {{d}^{3}}}\]
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D)
\[I=\frac{{{\mu }_{0}}M}{2\pi {{d}^{3}}}\]
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question_answer 36) The ratio of charge to potential of a body is known as:
A)
capacitance
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B)
conductance
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C)
inductance
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D)
resistance
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question_answer 37) Two installed metallic spheres of 3 \[\mu \]F and 5\[\mu \]F are charged to 300 volts and 500 volts respectively. The energy loss when they are connected by a wire is:
A)
0.025 J
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B)
2.5 J
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C)
0.0375 J
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D)
3.75 J
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question_answer 38) A charged particle is moving in a uniform magnetic field in a circular path. The radius of the circular path is R. When energy of the particle is doubled, then new radius will be:
A)
\[\sqrt{2}\]R
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B)
R/\[\sqrt{2}\]
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C)
R
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D)
R/2
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question_answer 39)
12 resistors each of 10 \[\Omega \] are connected as shown in figure. The effective resistance between A and B is:
A)
120 \[\Omega \]
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B)
8\[\Omega \]
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C)
12\[\Omega \]
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D)
10\[\Omega \]
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question_answer 40) A galvanometer with a shunt in parallel is used in series in a circuit. Then it is called:
A)
voltmeter
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B)
ammeter
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C)
wattmeter
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D)
voltameter
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question_answer 41) When a current flows along a junction of two different metals in series, heat is developed or absorbed depending on the current direction. Their effect is called:
A)
Joules heating
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B)
Seeback effect
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C)
Peltier effect
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D)
Thomson effect
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question_answer 42) The e/m value of electron is:
A)
\[1.758\times {{10}^{11}}coulomb/kg\]
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B)
\[1.62\times {{10}^{10}}coulomb/kg\]
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C)
\[9.11\times {{10}^{-21}}coulomb/kg\]
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D)
\[1.672\times {{10}^{27}}coulomb/kg\]
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question_answer 43) The number of electrons emitted by a surface exposed to light is directly proportional to:
A)
wavelength of light
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B)
intensity of light
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C)
velocity of light
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D)
frequency of light
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question_answer 44) Moseleys law states that:
A)
\[{{v}^{2}}=Z(a-b)\]
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B)
v = \[\sqrt{a\,(Z-b)}\]
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C)
\[v=a\text{ (}Z-b{{\text{)}}^{2}}\]
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D)
\[~\sqrt{v}=a(Z-b)\]
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question_answer 45) In an atom a revolving electron has:
A)
only potential energy
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B)
only kinetic energy
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C)
neither potential energy nor kinetic energy
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D)
both kinetic and potential energy
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question_answer 46) A slow neutron can cause fission in:
A)
uranium - 238
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B)
thorium
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C)
uranium - 235
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D)
hydrogen
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question_answer 47) Nuclear fission and fusion can be explained on the basis of:
A)
Einstein mass-energy equivalence relation
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B)
conservation of energy principle
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C)
binding energy per nucleon variation with nucleon number
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D)
variation of mass with increasing atomic nucleus
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question_answer 48) The conduction band and valence band in a good conductor:
A)
always separated
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B)
they just touch
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C)
are very close
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D)
overlap
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question_answer 49) Pick out the incorrect statement regarding reverse saturation current in a p-n junction diode:
A)
this current doubles for very \[100{}^\circ C\] rise in temperature
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B)
this current is due to minority carriers
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C)
The current carriers are produced by thermal agitation
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D)
reverse saturation current is also known as leakage current
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question_answer 50)
Find the effective capacitance between P and Q in the given figure:
A)
C
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B)
4 C
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C)
2 C
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D)
C/2
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question_answer 51) Hunds rule states that:
A)
matter and radiation have a dual nature
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B)
in an atom no two electrons can have the same set of four quantum numbers
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C)
the position and velocity of an electron cannot be exactly measured at one and same time
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D)
in orbitals of equivalent energy, electron spins remain unpaired until each orbital holds at least one electron
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question_answer 52) The wavelength of light having wave number \[4000\,\text{c}{{\text{m}}^{-1}}\] is :
A)
\[2.5\,\mu \,m\]
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B)
\[1.5\,\mu \,m\]
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C)
\[3.0\,\mu \,m\]
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D)
\[2.0\,\mu \,m\]
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question_answer 53) In 14-C isotope, the number of neutrons would be:
A)
14
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B)
6
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C)
16
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D)
8
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question_answer 54) The hydrogen bond is strongest in :
A)
F-H...F
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B)
F-H...O
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C)
S-H...F
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D)
O-H...S
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question_answer 55) Which of the following molecules has zero dipole moment?
A)
\[HF\]
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B)
\[HBr\]
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C)
\[C{{O}_{2}}\]
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D)
\[{{H}_{2}}O\]
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question_answer 56) The general electronic configuration \[(n-1){{d}^{3}}\,n{{s}^{2}}\] indicates that particular element belongs to:
A)
VB
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B)
IVB
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C)
VIB
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D)
IIIB
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question_answer 57) Sulphur-35 (34.96903 amu) emits a P-particle but no \[\gamma -\] ray. The product is chlorine-35 (34.96885 amu). The maximum energy of the \[\beta -\] particle emitted is :
A)
1.6758 MeV
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B)
16.758 MeV
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C)
0.016758 MeV
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D)
0.16758 MeV
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question_answer 58) The half-life of a radioactive isotope is 3 hours. The value of its disintegration constant is :
A)
\[2.079\text{ hou}{{\text{r}}^{-1}}\]
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B)
\[231\,\text{hou}{{\text{r}}^{-1}}\]
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C)
\[0.231\text{ hou}{{\text{r}}^{-1}}\]
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D)
\[2.079\text{ hou}{{\text{r}}^{-1}}\]
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question_answer 59) \[\text{B}{{\text{F}}_{\text{3}}}\]is a:
A)
Lewis acid
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B)
Bronsted base
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C)
Bronsted acid
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D)
Lewis base
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question_answer 60) The pH of N/10 sodium hydroxide is :
A)
12
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B)
9
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C)
13
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D)
10
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question_answer 61) The oxidation number of chromium in potassium dichromate is:
A)
+6
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B)
+2
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C)
+7
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D)
+4
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question_answer 62) 180 mL of hydrocarbon having the molecular weight 16 diffuses in 1.5 minutes. Under the same conditions, the time taken by 120 mL of sulphur dioxide to diffuse is :
A)
2.5 min
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B)
3.0 min
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C)
2.0 min
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D)
1.5 min
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question_answer 63) The molarity of water is :
A)
100
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B)
55.5
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C)
1
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D)
18
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question_answer 64) When one faraday current is passed which of the following would deposit one gram atomic weight of the metal?
A)
\[NaCl\]
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B)
\[CuS{{O}_{4}}\]
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C)
\[BaC{{l}_{2}}\]
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D)
\[AlC{{l}_{3}}\]
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question_answer 65) For a reversible reaction if the concentrations of the reactants are doubled, then the equilibrium:
A)
be halved
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B)
be doubled
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C)
remain the same
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D)
become 1 /4th
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question_answer 66) For a first-order reaction, the half-life period is:
A)
dependent on the square of the initial concentration
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B)
dependent on first power of initial concentration
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C)
dependent on the square root of initial concentration
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D)
independent on initial concentration
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question_answer 67) An increase in pressure would favour the following reaction :
A)
\[{{N}_{2}}{{O}_{4}}2N{{O}_{2}}\]
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B)
\[2S{{O}_{2}}+{{O}_{2}}2S{{O}_{3}}\]
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C)
\[{{N}_{2}}{{O}_{2}}2NO\]
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D)
\[{{H}_{2}}+{{I}_{2}}2HI\]
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question_answer 68) The heat of combustion of methane at 298 K is expressed by: \[C{{H}_{4}}(g)+2{{O}_{2}}(g)\to C{{O}_{2}}(g)+2{{H}_{2}}O(l)\]\[\Delta H=890.2\,\text{kJ}\text{.}\] The magnitude of AE of the reaction at this temperature is:
A)
infinity
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B)
less than \[\Delta H\]
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C)
equal to \[\Delta H\]
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D)
greater than \[\Delta H\]
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question_answer 69) 0.202 g of a substance gave on combustion 0.361 g of \[\text{C}{{\text{O}}_{\text{2}}}\]and0.147 g of \[{{\text{H}}_{\text{2}}}\text{O}\text{.}\]What is the empirical formula of the substance?
A)
\[{{C}_{6}}{{H}_{6}}{{O}_{6}}\]
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B)
\[{{C}_{7}}{{H}_{7}}{{O}_{7}}\]
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C)
\[{{C}_{3}}{{H}_{6}}{{O}_{2}}\]
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D)
\[{{C}_{4}}{{H}_{5}}{{O}_{3}}\]
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question_answer 70) Which of the following statements concerning heavy water is correct?
A)
It is used as a moderator in nuclear reactors
done
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B)
It occurs in plenty natural water
done
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C)
It is also known as dry ice
done
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D)
It is an isotope of water
done
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question_answer 71) In \[{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}\]molecule the angle between two \[\text{O---H}\] planes is:
A)
\[{{105}^{o}}\]
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B)
\[{{103}^{o}}\]
done
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C)
\[{{90}^{o}}\]
done
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D)
\[{{101}^{o}}\]
done
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question_answer 72) Baking soda is:
A)
sodium bicarbonate
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B)
potassium bicarbonate
done
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C)
ammonium carbonate
done
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D)
sodium carbonate
done
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question_answer 73) Magnalium is :
A)
magnesium bicarbonate
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B)
an alloy of magnesium and aluminium
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C)
ethyl magnesium iodide
done
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D)
magnesium nitride
done
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question_answer 74) Mortar is mixture:
A)
slaked lime + sand + water
done
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B)
plaster of Paris + sand 4-water
done
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C)
cement + sand + water
done
clear
D)
gypsum 4- lime + water
done
clear
View Answer play_arrow
question_answer 75) Purification of aluminium by electrolyte refining is knows as :
A)
Hoopes process
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B)
Serpecks process
done
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C)
Halls process
done
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D)
Baeyers process
done
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question_answer 76) The type of hybridization of boron in diborane:
A)
\[sp-\] hybridization
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B)
\[s{{p}^{2}}-\]hybridization
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C)
\[s{{p}^{3}}-\]hybridization
done
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D)
\[s{{p}^{3}}{{d}^{2}}-\]hybridization
done
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question_answer 77) The structure of \[\text{Si}{{\text{O}}_{\text{2}}}\]is :
A)
trigonal
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B)
square planar
done
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C)
tetragonal
done
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D)
hexagonal prisms
done
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question_answer 78) Water gas is a mixture of:
A)
\[CO\,\,+\,\,C{{O}_{2}}\]
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B)
\[CO\,+\,{{H}_{2}}\]
done
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C)
\[C{{O}_{2}}+{{H}_{2}}\]
done
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D)
\[CO+{{N}_{2}}\]
done
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question_answer 79) In hypophosphorus acid the number of hydroxyl groups present are :
A)
5
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B)
1
done
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C)
3
done
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D)
7
done
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question_answer 80) Cyanamide process for the manufacture of ammonia involves:
A)
hydrolysis of calcium carbide
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B)
hydrolysis of calcium cyanamide
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C)
electrolysis of calcium cyanamide
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D)
direct combination of nitrogen and hydrogen by electric discharge
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question_answer 81) The bond order for nitrogen molecule is :
A)
2.0
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B)
2.5
done
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C)
1.5
done
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D)
3.0
done
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question_answer 82) The O-O bond length in ozone is:
A)
L\[\text{1}\text{.2}\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
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B)
\[\text{1}\text{.10}\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
done
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C)
\[1.33\text{ }\overset{\text{o}}{\mathop{\text{A}}}\,\]
done
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D)
\[1.8\overset{\text{o}}{\mathop{\text{A}}}\,\]
done
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question_answer 83) Loss of electron is termed :
A)
combustion
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B)
oxidation
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C)
neuatralization
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D)
reduction
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question_answer 84) Oxygen molecule exhibits paramagnetism since it:
A)
contains unpaired electrons
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B)
contains zero charge
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C)
contains paired electrons only
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D)
contains a double bond
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question_answer 85) Hypo is used:
A)
in developing photographic films
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B)
for making printing inks
done
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C)
for making perfumes
done
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D)
as bleaching agent
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question_answer 86) Perchloric acid is prepared by the action of concentrated sulphuric acid on :
A)
sodium perchlorate
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B)
barium chloride
done
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C)
sodium chloride
done
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D)
barium chlorate
done
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question_answer 87) The magnetic moment of \[\text{S}{{\text{c}}^{\text{3+}}}\] is :
A)
2.76
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B)
1.75
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C)
3.86
done
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D)
zero
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question_answer 88) Bell metal is an alloy of :
A)
Cu + Pb
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B)
Cu + Sn
done
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C)
Cu + Zn
done
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D)
Cu + Ni
done
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question_answer 89) Acetylene is produced by the action of water on :
A)
\[A{{l}_{4}}{{C}_{3}}\]
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B)
\[ZnB{{r}_{2}}\]
done
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C)
\[{{C}_{2}}{{H}_{5}}MgCl~\]
done
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D)
\[~Ca{{C}_{2}}\]
done
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question_answer 90) Dehydrohalogenation of ethyl iodide gives:
A)
acetylene
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B)
methane
done
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C)
ethane
done
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D)
ethylene
done
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question_answer 91) Delocalized electrons are present in:
A)
water molecule
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B)
octane molecule
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C)
methane molecule
done
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D)
benzene molecule
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question_answer 92) Marsh gas is:
A)
\[{{C}_{6}}{{H}_{6}}\]
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B)
\[C{{H}_{4}}\]
done
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C)
\[{{C}_{2}}{{H}_{2}}\]
done
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D)
CO
done
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question_answer 93) The halide which does not give a precipitate when warmed with alcoholic \[\text{AgN}{{\text{O}}_{\text{3}}}\]is :
A)
allyl chloride
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B)
benzyl chloride
done
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C)
t-butyl chloride
done
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D)
chlorobenzene
done
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View Answer play_arrow
question_answer 94) The reaction\[{{C}_{6}}{{H}_{6}}+C{{H}_{3}}CI\xrightarrow[(anhydrous)]{AlC{{l}_{3}}}HCl+{{C}_{6}}{{H}_{5}}C{{H}_{3}}\]is:
A)
Friedel-Craffs alkylation
done
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B)
addition reaction
done
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C)
Friedel-Craffs acylation
done
clear
D)
Friedel-Craffs benzylation
done
clear
View Answer play_arrow
question_answer 95) Ethyl chloride is converted into diethyl ether by:
A)
Williamsons synthesis
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B)
Wurtz synthesis
done
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C)
Perkins reaction
done
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D)
Grignard reaction
done
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question_answer 96) Ethyl alcohol reacts with bleaching powder to yield:
A)
ethylene
done
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B)
chloroform
done
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C)
acetone
done
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D)
ethyl chloride
done
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question_answer 97) Acetaldehyde and acetone can be identified by:
A)
Schiffs test
done
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B)
Bromoform test
done
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C)
c) lodoform test
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D)
Molischtest
done
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question_answer 98) The dehydrating agent used in the conversion of acetic acid into acetic anhydride is:
A)
concentrated sulphuric acid
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B)
anhydrous calcium oxide
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C)
anhydrous aluminium chloride
done
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D)
phosphorus pentoxide
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question_answer 99) Nitrobenzene combines with hydrogen in the presence of platinum to yield:
A)
toluene
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B)
benzene
done
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C)
aniline
done
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D)
azobenzene
done
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question_answer 100) The IUPAC name of the compound having the formula \[CH\equiv C-CH=C{{H}_{2}}\] is :
A)
1-butyne-3-ene
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B)
But-1-yne-3-ene
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C)
3-butene-1 -yne
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D)
1 -butene-3-yne
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question_answer 101) All stages in the life cycle of Plasmodium vivax are haploid except:
A)
gamont
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B)
sporozoite
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C)
oocyst
done
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D)
schizont
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question_answer 102) The mouth in Ascaris lumbricoides is bound by three lips of which:
A)
one is median and two are lateral
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B)
one is dorsal and two are ventral
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C)
two are dorsal and one is ventral
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D)
one is median-dorsal and two are ventrolateral
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question_answer 103) Among lac insects, lac is produced:
A)
only by females
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B)
far more by males than by females
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C)
only by males
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D)
far more by females than by males
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question_answer 104) The echinoderms, hemichordates and chordates had the following larva as common ancestral form:
A)
trochophore
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B)
tornare
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C)
dipleurala
done
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D)
bipinnaria
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question_answer 105) In the blood generally:
A)
red blood corpuscles and white blood corpuscles occur in equal numbers
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B)
red blood corpuscles are more in number than white blood corpuscles
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C)
white blood corpuscles are more in number than red blood corpuscles
done
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D)
only red blood corpuscles occur
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question_answer 106) The codont teeth are present in:
A)
Chelonea
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B)
Crocodilia
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C)
Equamala
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D)
Rhyncocephalia
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question_answer 107) Which of the following is the largest animal?
A)
elephant
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B)
rhinoceros
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C)
whale
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D)
dinosaur
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question_answer 108) For normal formation of prothrombin the following vitamin is required:
A)
A
done
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B)
B
done
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C)
D
done
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D)
K
done
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question_answer 109) The genotype of an offspring of first filial (F) generation can be tested by the method of:
A)
back crossing with homozygous recessive parent
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B)
inbreeding
done
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C)
crossing with homozygous
done
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D)
hybridization
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question_answer 110) It has been found to be economical to bow the three major carps- Catla, Labeo and Cirrhina together, because:
A)
one forms the food for the other
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B)
they compete with each other in their growth
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C)
the excreta of the forms the food for the other
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D)
competition for food amongst them is remote
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question_answer 111) The most dangerous metal pollutant of automobile exhaust is:
A)
cadmium
done
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B)
mercury
done
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C)
copper
done
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D)
lead
done
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question_answer 112) During conjugation in Paramecium:
A)
the zygote nucleus undergoes eight successive divisions in each conjugant
done
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B)
out of the twelve macronuclei formed, four nuclei degenerate
done
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C)
out of the four micronuclei formed, three nuclei degenerate
done
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D)
out of the sixteen nuclei formed from the zygote nucleus, twelve become macronuclei and four become micronuclei
done
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question_answer 113) Several buds may occur in a single mother Hydra, at a time. Then:
A)
all of them are equally older
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B)
the one towards the aboral end is older
done
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C)
the one towards the aboral end is younger
done
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D)
the one towards the oral end is older
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View Answer play_arrow
question_answer 114) Monoclonal antibodies:
A)
are obtained from a cell and act on one antigen
done
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B)
are obtained from a group of cells and act on more than one antigens
done
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C)
are obtained from a group of same type of cells and act on single antigen
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D)
are obtained from a group of same type of cells and act on more than one antigens
done
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question_answer 115) Which one of the following is a Chordate feature, not shared by the non- chordates?
A)
Bilateral symmetry
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B)
Axiate organization
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C)
Pharyngeal gill slits
done
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D)
Metamerism
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question_answer 116) If groups of minute scales, arranged in transverse rows, are found beneath the grooves of the skin, then the animal be identified as an/a:
A)
Anuran
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B)
Lepidosiren
done
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C)
Apodan
done
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D)
Urodae
done
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question_answer 117) Find out the correct description of a Ratite bird, from the following table: Barbs: Free United United Free After Shaft: III developed Usually well developed III developed Usually well developed Uropygal Gland:
A)
Generally absent
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B)
Present
done
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C)
Present
done
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D)
Generally absent
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question_answer 118) 18. In which tissue, Schwann cells are met with?
A)
connective tissue
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B)
nervous tissue
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C)
muscle tissue
done
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D)
epithelial tissue
done
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question_answer 119) One of the several objections to the Natural Selection Theory of Darwin is:
A)
acquired characters are not inherited
done
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B)
accumulation of small variations is not possible
done
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C)
large variations are harmful
done
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D)
many animals possess characteristics of inutility and even those that are positively harmful
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question_answer 120) Pullorum disease of Poultry is caused by:
A)
Hemophilus
done
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B)
Mycobacterium
done
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C)
Salmonella
done
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D)
Clostridium
done
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question_answer 121) In the life cycle of Plasmodium vivax, sporogony occurs in:
A)
salivary glands of man
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B)
liver of man
done
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C)
red blood cells of man
done
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D)
outer wall of the stomach of mosquito
done
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question_answer 122) Members of Phylum- Porifera arc:
A)
mostly marine animals, few being fresh water
done
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B)
exclusively marine animals
done
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C)
mostly fresh water animals, few being marine
done
clear
D)
exclusively fresh water animals
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View Answer play_arrow
question_answer 123) Regarding blood circulation, it may be said that in Pheretima the dorsal vessel is a:
A)
distributing vessel in first thirteen segments and collecting vessel in intestinal region
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B)
collecting vessel in first thirteen segments and distributing vessel in intestinal region:
done
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C)
distributing vessel
done
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D)
collecting vessel
done
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question_answer 124) In cockroach, moulting is induced by the secretions form:
A)
prothoracic gland
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B)
corpora allata
done
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C)
corpora cardiac
done
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D)
mushroom gland
done
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question_answer 125) Out of the following, which two are most important identification features of fishes?
A)
epidermal scales and tail
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B)
epidermal scales and gills
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C)
tail and venous heart
done
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D)
venous heart and gills
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question_answer 126) The number of bones, in each of the lower jaw of frog is:
A)
3
done
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B)
2
done
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C)
1
done
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D)
4
done
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question_answer 127) Foot is displaced to the neighbourhood of mouth and divided into arms in:
A)
Ostrea
done
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B)
Pila
done
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C)
Sepia
done
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D)
Chiton
done
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question_answer 128) The hyoid apparatus in frog has two pairs of horns. The anterior pair extends up to:
A)
optic capsules
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B)
olfactory capsules
done
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C)
laryngotracheal chamber
done
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D)
auditory capsules
done
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question_answer 129) In Entamoeba histolytica, presence of chromatid bodies is characteristic of:
A)
precystic stage
done
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B)
trophozoite stage
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C)
mature quadrinucleate cyst
done
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D)
none of the above
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question_answer 130) As per the sliding filament mechanism, in contracted state muscle will show the following disposition:
A)
done
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B)
done
clear
C)
done
clear
D)
done
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question_answer 131) In poultry industry, production of hatching eggs is more expensive than production of market eggs mainly because:
A)
some of the eggs produced by hatchery flocks are not acceptance for incubation
done
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B)
considerable number of eggs produced by hatchery flock are to be sold hatchery flock are to be sold only as market eggs
done
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C)
mortality among females is usually somewhat lower when they are noted with males
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D)
the cost of males and their depreciation in value from the beginning to the end of breeding season is high
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question_answer 132) Physiological evidence through blood test, reveals that turtles are more closely related to:
A)
mammals than to crocodiles, lizards and snakes
done
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B)
snakes than to crocodiles, lizards and mammals
done
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C)
Iizards than to crocodi les, snakes and mammals
done
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D)
croc odiles than to lizards, snakes and mammals.
done
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question_answer 133) If large quantities of domestic sewage is continuously emptied into a small stream, it leads to:
A)
depletion of oxygen content in stream water
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B)
enrichment of oxygen content in stream water
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C)
depletion of nutrients in the stream water
done
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D)
increase in the total amount of life in the stream water
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question_answer 134) As seen in a transverse section of Taenia solium, passing through a mature proglottid, the parenchyma is divided into an outer cortical zone and inner medullary zone by:
A)
longitudinal excretory vessels
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B)
longitudinal nerves
done
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C)
circular muscles
done
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D)
longitudinal muscles
done
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View Answer play_arrow
question_answer 135) By noting the presence or absence of one of the following, the fish can be identified either as an elasmobranch fish or as a teleostean fish:
A)
lateral line
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B)
operculum
done
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C)
mucus
done
clear
D)
middle ear
done
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question_answer 136) Ambulacral grooves are absent in the living forms of the class:
A)
Echinodermata
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B)
Crinoidea
done
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C)
Asteroidea
done
clear
D)
Ophiuroidca
done
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question_answer 137) In frog, mesorchium is a thin fold of membrane extending between:
A)
liver and kidneys
done
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B)
the two testes
done
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C)
kidney and testes
done
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D)
the two kidneys
done
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question_answer 138) In the butterfly, the long coiled siphoning tube is derived from:
A)
paraglossae
done
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B)
labrum
done
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C)
maxillae
done
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D)
mandibles
done
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question_answer 139) The presence of vestigeal organs in man, supports:
A)
Lamarcks theory of inheritance of acquired characters, but not the theory of evolution
done
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B)
both the theory of evolution as well as Lamarcks theory of inheritance of acquired characters
done
clear
C)
the theory of evolution, but not Lamarcks theory of inheritance of acquired characters
done
clear
D)
the theory of special creation
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question_answer 140) When chicken of F1 generation are mated among themselves, they produced an F2 generation of four kinds of birds, as far as comb type of plumage color are concerned in the following proportions: 9 rose comb blacks, 1 single comb white. 3 rose combs white, 3 single combs blacks. Based on this, find out which two, are the recessive characters in these birds:
A)
black plumage and white plumage
done
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B)
single comb and white plumage
done
clear
C)
rose comb and single comb
done
clear
D)
rose comb and black plumage
done
clear
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question_answer 141) Unlike other trematodes, Schistosoma haematobium is dioecious and:
A)
the larger male retains the smaller female in its gynecophoric canal and all live in veins of the urinary bladder plexuses
done
clear
B)
the larger female retains the smaller male in its gynecophoric canal and all live in portal vein
done
clear
C)
males are seen in public plexuses and females in portal vein
done
clear
D)
males are seen in portal vein and females in public plexuses
done
clear
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question_answer 142) In earthworm the:
A)
testes on the right side are larger than ovaries on right side
done
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B)
testes are larger than ovaries
done
clear
C)
ovaries are larger than testes
done
clear
D)
ovaries and testes are of same size
done
clear
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question_answer 143) The carotid labyrinth of frog is concerned with control of:
A)
blood composition
done
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B)
temperature
done
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C)
blood sugar
done
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D)
blood pressure
done
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question_answer 144) The silkworm larva ceases to eat and starts spinning silk around its body:
A)
from outside to inside in one half on the cocoon and from inside to outside in other half of the cocoon
done
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B)
at random
done
clear
C)
from inside to outside
done
clear
D)
from outside to inside
done
clear
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question_answer 145) Topical method of spawn collection has number of limitations. To overcome these, the following is done:
A)
stocking of fingerlings
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B)
increasing fishing grounds
done
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C)
induced breeding
done
clear
D)
improvement of fishing implements and gear
done
clear
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question_answer 146) de Vries theory of mutation:
A)
supports theory of spontaneous generation or abiogenesis
done
clear
B)
does not rule out Natural Selection Theory
done
clear
C)
rules out theory of evolution
done
clear
D)
supports Lamarcks theory of inheritance of acquired characters
done
clear
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question_answer 147) Mammary glands are without teats or nipples in:
A)
Protheria
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B)
Eutheria
done
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C)
Metatheria
done
clear
D)
Pantotheria
done
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question_answer 148) The following are the principal bones involved in the erection of fang in a poisonous snake. Find out their correct sequences:
A)
Quadrate - Ectopterygoid - Pterygoid - Maxilla - Squamosal
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B)
Quadrate - Squamosal - Pterygoid - Ectopterygoid - Maxilla
done
clear
C)
Maxilla - Ectopterygoid - Pterygoid - Quadrate - Squamosal
done
clear
D)
Maxilla - Pterygoid - Ectopterygoid - Quadrate - Squamosal
done
clear
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question_answer 149) The brain of frog, has internal cavities called ventricles aqueduct of sylvius connects:
A)
1st and 2nd ventricles
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B)
2nd and 3rd ventricles
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C)
4th and 1st ventricles
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D)
3rd and 4th ventricles
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question_answer 150) Each half of the pelvic girdle of frog has three bones ilium, ischium and pubis. Their arrangement is as follows: IIium: Posteriodorsal Posteriodorsal Anteriodorsal Anteriodorsal Ischium: Anterior Ventral Posterior Ventral
A)
Pubis: Ventral
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B)
Posteriodorsal
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C)
Ventral
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D)
Posteriodorsal
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question_answer 151) The study related to the structure and function of cells is known as :
A)
Palynology
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B)
Anatomy
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C)
Histology
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D)
Cytology
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question_answer 152) Double helical model for DNA molecule is proposed by :
A)
Watson and Crick
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B)
Jacob and Monod
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C)
Khorana and Kornberg
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D)
Beadle and Tatum
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question_answer 153) Endodermis is a part of :
A)
pericycle
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B)
medulla
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C)
epidermis
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D)
cortex
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question_answer 154) Swollen spongy petioles are present in :
A)
Eichhornia
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B)
Salvenia
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C)
Marselia
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D)
Pistia
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question_answer 155) Cyathium is a type of :
A)
umbel
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B)
algae
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C)
bacterium
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D)
inflorescence
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question_answer 156) Double fertilization was first described by:
A)
Nawaschin
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B)
De Condole
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C)
Robert Brown
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D)
Strasburger
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question_answer 157) National Botanical Research Institute is located at:
A)
Calcutta
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B)
Lucknow
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C)
Delhi
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D)
Dehradun
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question_answer 158) In which of the following the fruit is cremocarp?
A)
Citrus
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B)
Coriandrum
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C)
Cicer
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D)
Cocos
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question_answer 159) Fructose 1, 6-biphosphate splits into two triose phosphates by the enzyme :
A)
enolase
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B)
phosphatase
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C)
sucrase
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D)
isomerase
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question_answer 160) If pollen of a flower falls on the stigma of another flower belonging to the same plant, it is called :
A)
geionogamy
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B)
cleistogamy
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C)
cros pollination
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D)
herkogamy
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question_answer 161) A thin film of water held by the soil particle under the influence of internal attractive force. Then it is :
A)
Gravitational water
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B)
Combined water
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C)
Hygroscopic water
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D)
Capillary water
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question_answer 162) Water acts as electron donor in photo autotrohic plants was indicated by :
A)
Wanurg
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B)
Van Niel
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C)
Blackmann
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D)
Arnon
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question_answer 163) The nuclear material in bacterial cell is called:
A)
mucopeptide
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B)
nucleoid
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C)
cellulose
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D)
mesosome
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question_answer 164) Seed increases in its volume by absorption of water through a phenomenon called :
A)
active absorption
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B)
imbibition
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C)
plasmolysis
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D)
diffusion
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question_answer 165) Ligule possesses a bulbous basal region called s:
A)
microphyll
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B)
heterophyllum
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C)
sporophyll
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D)
glosso podium
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question_answer 166) The term water potential is proposed by :
A)
Bose
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B)
Dixon
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C)
Slater and Tyior
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D)
Godlewski
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question_answer 167) The pathogen that causes covered smut of Sorghum is :
A)
Puccinia
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B)
Uromyces
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C)
Ustage
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D)
Sphacelotheca
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question_answer 168) One gram molecules of glucose through aerobic respiration produces the following ATP molecules:
A)
42
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B)
36
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C)
38
done
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D)
40
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question_answer 169) Plasmids are:
A)
new type micro-organisms
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B)
nucleoid
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C)
linear chromosomes
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D)
extra chromosomal circular material
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question_answer 170) The term ecosystem was coined by :
A)
Mobius
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B)
Reiter
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C)
Haeckel
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D)
Tansley
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question_answer 171) The protein coat of virus is called :
A)
capsomere
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B)
chromophore
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C)
cosmid
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D)
capsid
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question_answer 172) Cycas stem contains :
A)
Sapwood
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B)
manoxylic wood
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C)
pycnoxylic wood
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D)
porous wood
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question_answer 173) When the filament is attached on the back of the anther all along the length it is called :
A)
versatile
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B)
longitudinal
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C)
syngencious
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D)
adnate
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question_answer 174) The fruit in Datura is :
A)
Loculicidal capsule
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B)
Septifragal capsule
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C)
Porous capsule
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D)
Septicidal capsule
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question_answer 175) The protein portion of the conjugate enzyme is called :
A)
co-enzyme
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B)
apoenzyme
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C)
metaloenzyme
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D)
diastase
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question_answer 176) Petals show ascending imbricate aestivation in:
A)
Solanum
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B)
Tridax
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C)
Brassica
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D)
Caesalpinia
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question_answer 177) The importance of molybdenum in plant metabolism is :
A)
carbon assimilation
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B)
nitrate reduction
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C)
plant breeding
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D)
chromosome contraction
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question_answer 178) The outgrowth which usually develops along the hilum is called :
A)
scutellum
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B)
strophiole
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C)
caruncle
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D)
perisperm
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question_answer 179) The botanical name of bajra:
A)
Triticum vitlgure
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B)
Penniseluni lyphoideum
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C)
Elensine corocana
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D)
Andropogon
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question_answer 180) In \[{{C}_{4}}\]plants, the carbon dioxide fixation occurs in:
A)
guard cells
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B)
spongy mesophyll cells
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C)
palisade cells
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D)
bundle sheath cells
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question_answer 181) Sexual reproduction Agaricus is called :
A)
basidiocarp
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B)
somatogamy
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C)
sterigmata
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D)
dikaryotization
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question_answer 182) Binomial system of nomenclature has been suggested by :
A)
Theophrastus
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B)
Linnaeus
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C)
Caspor Bauhin
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D)
Bentham and Hooker
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question_answer 183) Peristomial teeth help in :
A)
protection to spore
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B)
dispersal of seed
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C)
dehiscence of capsule
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D)
discharge of spores
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question_answer 184) Which one of the following shows heterothallium?
A)
Rhizopus
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B)
Cycas
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C)
Bacterium
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D)
Ricinus
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question_answer 185) A widely accepted theory of ascent of sap is
A)
Inhibition theory
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B)
Negative tension theory
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C)
Cohesion tension theory
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D)
Capillary theory
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question_answer 186) The family Fabaceae belongs to which series :
A)
Thalami florae
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B)
Calyciflorae
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C)
Bicarpellatae
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D)
Inferae
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question_answer 187) The atmospheric nitrogen is fixed in the soil in the form of :
A)
hydroxylamine
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B)
dinitrite
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C)
nitrite
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D)
ammonia
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question_answer 188) Climbing roots are found in :
A)
Taemiophyllum
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B)
Dolichos
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C)
Pancianus
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D)
Vanilla
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question_answer 189) Chromosomes with equal arms are called :
A)
telocentric
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B)
acrocentric
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C)
metacentric
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D)
submetacentric
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question_answer 190) Most reduced form of stem is found in :
A)
bulb
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B)
phylloclade
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C)
stolon
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D)
rhizome
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question_answer 191) The vessels of heart wood are blocked by :
A)
strip
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B)
hair
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C)
tumour
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D)
tyloses
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question_answer 192) Any moment medium can be made semisolid by adding :
A)
starch
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B)
agar-agar
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C)
sucrose
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D)
gum
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question_answer 193) Thylakoids are present in :
A)
chloroplast
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B)
nucleus
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C)
mitochondrion
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D)
peroxisome
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question_answer 194) Chiasma represents the sites of:
A)
disjunction
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B)
terminalization
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C)
crossing over
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D)
synapsis
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question_answer 195) In Spirogyra sexual reproduction takes place by :
A)
antheridia and archaegonia
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B)
hormogonia
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C)
trichome
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D)
conjugation
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question_answer 196) Electro-osmotic theory for translocation of solutes was proposed by :
A)
Munch
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B)
Deurjes
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C)
Crafts
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D)
Bose
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question_answer 197) The first compound that accepts carbon dioxide during dak phase of photosynthesis is :
A)
NADP
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B)
RuBP
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C)
ferridoxin
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D)
cytochrome
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question_answer 198) Hormone involved in phototropism is :
A)
2,4-D
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B)
gibberellin
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C)
kinetin
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D)
IAA
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question_answer 199) Emasculation of flower is achieved by :
A)
removal of stigma
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B)
removal of anthers
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C)
removal of sepals
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D)
removal of corolla
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question_answer 200) Floral formula for Solanaceae :
A)
Br. Ebr\[\underset{+}{\overset{\nearrow }{\mathop{O}}}\,\]\[{{K}_{(5)}}\]\[{{C}_{(5)}}\]\[{{A}_{(5)}}\]\[\underline{{{G}_{(2)}}}\]
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B)
Br. Ebr \[\oplus \underset{+}{\overset{\nearrow }{\mathop{O}}}\,{{K}_{5}}{{C}_{5}}{{A}_{1}}\underline{{{G}_{2}}}\]
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C)
Ebr \[\oplus \underset{+}{\overset{\nearrow }{\mathop{O}}}\,{{K}_{4}}{{C}_{4}}{{A}_{4}}\underline{{{G}_{2}}}\]
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D)
\[\oplus\underset{+}{\overset{\nearrow }{\mathop{O}}}{{K}_{5}}{{C}_{5}}{{A}_{5}}\underline{{{G}_{2}}}\]
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