question_answer 1) In the relation p = \[\frac{\alpha }{\beta }{{e}^{-\frac{\alpha z}{k\theta }}}p\]is pressure, z is distance, k is Boltzmann constant and \[\theta \]is the temperature. The dimensional formula of P will be
A)
[M0 L2 T0]
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B)
[ML2T]
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C)
[ML0 T-1]
done
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D)
[M0 L2 T-1]
done
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question_answer 2) A particle of mass m is projected with a velocity v at an angle of 60° with horizontal. When the particle is at its maximum height. The magnitude of its angular momentum about the point of projection is
A)
zero
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B)
\[\frac{3m{{v}^{3}}}{16g}\]
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C)
\[\frac{\sqrt{3}m{{v}^{3}}}{16g}\]
done
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D)
\[\frac{3m{{v}^{3}}}{8g}\]
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question_answer 3) A body is thrown vertically upward in air when air resistance is taken into account, the time of ascent is r, and time of descent is t2, then which of the following is true?
A)
t1 = t2
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B)
t1 < t2
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C)
t1 > t2
done
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D)
\[{{t}_{1}}\,_{<}^{>}\,{{t}_{2}}\]
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question_answer 4) At what angle should the two forces 2P and \[\sqrt{2}P\] act so that the resultant force is? \[P\sqrt{10}\]
A)
\[45{}^\circ \]
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B)
\[60{}^\circ \]
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C)
\[90{}^\circ \]
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D)
\[120{}^\circ \]
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question_answer 5) A wheel is rotating at 900 rpm about its axis. When the power is cut off it comes to rest in 1 min. The angular retardation in rad s-2 is
A)
\[\pi /2\]
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B)
\[\pi /4\]
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C)
\[\pi /6\]
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D)
\[\pi /8\]
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question_answer 6) A car is moving in a circular horizontal track of radius 10.0 m with a constant speed of 10.0 ms-1. A plumb bob is suspended from the roof of the car by a light rigid rod of length 1.00 m. The angle made by the rod with the track is (g = 10 ms-2)
A)
zero
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B)
\[30{}^\circ \]
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C)
\[45{}^\circ \]
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D)
\[60{}^\circ \]
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question_answer 7)
Figure shows a uniform rod of length 30 cm having a mass of 3.0 kg. The strings shown in the figure are pulled by constant forces of 20 N and 32 N. Find the force exerted by 20 cm part of the rod on the 10 cm pan. All the surfaces are smooth and the strings and pulleys are light
A)
36 N
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B)
12 N
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C)
64 N
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D)
24 N
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question_answer 8) A spring balance is attached to the ceiling of lift. A man hangs his bag on the string and the balance reads 49 N, when the lift is stationary. If the lift moves downwards with an acceleration of 5 ms-2. The reading of the spring balance would be
A)
24 N
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B)
74 N
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C)
15 N
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D)
49 N
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question_answer 9) A cyclist rides up a hill at a constant velocity. Determine the power developed by the cyclist if the length of the connecting rod of the pedal is r = 25 cm, the time of revolution of the rod is t = 2s and the mean force exerted by his foot on the pedal is F = 15 kg
A)
115. 6 W
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B)
215.6 W
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C)
15.6 W
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D)
11.56 W
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question_answer 10) An open water tight railway wagon of mass \[5\times {{10}^{3}}kg\]coasts at an initial velocity of 1.2 ms-1 without friction on a railway track. Rain falls vertically downwards into the wagon. What change occurs in KE of the wagon, when it has collected 103 kg of water?
A)
900 J
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B)
300 J
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C)
600 J
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D)
1200 J
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question_answer 11) The power factor of an R-L circuit is \[\frac{1}{\sqrt{2}}\]if the frequency of AC is doubled, what will be the power factor?
A)
\[\frac{1}{\sqrt{3}}\]
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B)
\[\frac{1}{\sqrt{5}}\]
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C)
\[\frac{1}{\sqrt{7}}\]
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D)
\[\frac{1}{\sqrt{11}}\]
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question_answer 12) A plane electromagnetic wave propagating in the X-direction has wavelength of 6.0 mm. The electric field is in the V-direction and its maximum magnitude is 33 Vm-1. The equation for the electric field as function of x and f is
A)
\[11\,\sin \,\pi \left( t-x/c \right)\]
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B)
\[33\,\sin \,\pi \times {{10}^{11}}\left( t-x/c \right)\]
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C)
\[33\,\sin \,\pi \left( t-x/c \right)\]
done
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D)
\[11\,\sin \,\pi \times {{10}^{11}}\left( t-x/c \right)\]
done
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question_answer 13) The optical path of a monochromatic light is same if it goes through 4.0 cm of glass or 4.5 cm of water. If the refractive index of glass is 1.53, the refractive index of the water is
A)
1.30
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B)
1.36
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C)
1.42
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D)
1.46
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question_answer 14) A double convex lens made of glass (refractive index n =1.5) has both radii of curvature of magnitude 20 cm. Incident light rays parallel to the axis of the lens will converge at a distance L such that
A)
L = 20 cm
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B)
L = 10 cm
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C)
L = 40 cm
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D)
L = \[\frac{20}{3}\]cm
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question_answer 15) A beam of light composed of red and green rays is incident obliquely at a point on the face of a rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from
A)
two points propagating in two different non-parallel directions
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B)
two points propagating in two different parallel directions
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C)
one point propagating in two different directions
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D)
one point propagating in the same direction
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question_answer 16) The Young's double slit experiment is performed with blue and with green light of wavelengths 4360\[{{A}^{o}}\]and 5460 \[{{A}^{o}}\]respectively. If x is the distance of 4th maxima from the central one, then
A)
\[{{X}_{(blue)}}={{x}_{(green)}}\]
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B)
\[{{X}_{(blue)}}>{{x}_{(green)}}\]
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C)
\[{{X}_{(blue)}}<{{x}_{(green)}}\]
done
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D)
\[{{X}_{(blue)}}{{^{/x}}_{(green)}}=5460/4360\]
done
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question_answer 17) A proton and an \[\alpha \]-particle are accelerated through same voltage. The ratio of their de - Broglie wavelength will be
A)
1 : 2
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B)
2\[\sqrt{2}\]: 1
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C)
2 : 1
done
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D)
\[\sqrt{2}\]: 1
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question_answer 18) The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV and the stopping potential for a radiation incident on this surface is 5 V. The incident radiation lies in
A)
ultra violet region
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B)
infrared region
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C)
visible region
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D)
X - ray region
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question_answer 19) An electron jumps from the 4th orbit to 2nd orbit of hydrogen atom. Given the Rydberg 's constant R = 105 cm-1 the frequency in hertz of the emitted radiation will be
A)
\[\frac{3}{16}\times {{10}^{5}}\]
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B)
\[\frac{3}{16}\times {{10}^{15}}\]
done
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C)
\[\frac{9}{16}\times {{10}^{15}}\]
done
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D)
\[\frac{3}{4}\times {{10}^{15}}\]
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question_answer 20)
In figure, the energy levels of the hydrogen atom have been shown along with some transitions marked A,B,C. The transitions A, B and C respectively represents
A)
the first member of the Lyman series, third member of Balmer series and second member of Paschen series
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B)
the ionisation potential of H, second member of Balmer series and third member of Paschen series
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C)
the series limit of Lyman series, second member of Balmer series and second member of Paschen series
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D)
the series limit of Lyman series, third member of Balmer series and second member of Paschen series
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question_answer 21) The typical ionisation energy of a donor in silicon is
A)
10.0 eV
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B)
1.0 eV
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C)
0.1 eV
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D)
0.001 eV
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question_answer 22) The temperature (T) dependence of resistivity (\[\rho \]) of a semiconductor is represented by
A)
done
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B)
done
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C)
done
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D)
done
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question_answer 23) The half- life of radioactive radon is 3.8 days. The time at the end of which (1/20)th of the radon sample will remain undecayed is (Given\[{{\log }_{10}}e=-0.4343\]).
A)
13.8 days
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B)
16.5 days
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C)
33 days
done
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D)
76 days
done
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question_answer 24) In the Boolean algebra, which of the following is wrong?
A)
1 + 0 = 1
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B)
0 + 1 = 1
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C)
1 + 1 = 1
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D)
None of these
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question_answer 25) The ratio of the radii of gyration of a circular disc and a circular ring of the same radii about a tangential axis perpendicular to plane of disc or ring is
A)
1 : 2
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B)
\[\sqrt{5}\,:\,\sqrt{6}\]
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C)
2 : 3
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D)
\[\frac{\sqrt{3}}{2}\]
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question_answer 26)
From a circular disc of radius R and mass 9M, a small disc of radius R / 3 is removed from the disc, the moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through 0 is
A)
4 MR2
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B)
\[\frac{40}{9}\]MR2
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C)
\[10M{{R}^{2}}\]
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D)
\[\frac{37}{9}M{{R}^{2}}\]
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question_answer 27) A clock S is based on osculation of a spring and a clock P is based on pendulum motion. Both clocks run at the same rate on earth. On a planet having the same density as earth but twice the radius
A)
S will run faster than P
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B)
P will run faster than P
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C)
both will run at the same rate as on the earth
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D)
both will run at the same rate which will be different from that on the earth
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question_answer 28) A body is executing SHM when its displacement from the mean position are 4 cm and 5 cm it has velocity 10 cms-1 and 8 cms-1 respectively. Its periodic time t
A)
\[\frac{2\pi }{2}\sec \]
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B)
\[\pi \sec \]
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C)
\[\frac{3\pi }{2}\sec \]
done
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D)
\[2\pi \sec \]
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question_answer 29) A point source emits sound equally in all directions in a non-absorbing medium. Two points P and Q are at distance of 2 m and 3 m respectively from the source. The ratio of the intensities of the waves at P and Q is
A)
9 : 4
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B)
2 : 3
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C)
3 : 2
done
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D)
4 : 9
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question_answer 30) The Young's modulus of brass and steel are respectively \[1.0\times {{10}^{11}}N{{m}^{-2}}\] and \[2.0\times {{10}^{11}}N{{m}^{-2}}.\].A brass wire and a steel wire of the same length are extended by 1 mm each under the same force. If radii of brass and steel wires are RB and RS respectively, then
A)
Rs = \[\sqrt{2}\]RB
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B)
RS = \[\frac{{{R}_{B}}}{2}\]
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C)
Rs = 4RB
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D)
Rs = \[\frac{{{R}_{B}}}{2}\]
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question_answer 31) An ice- berg of density 900 kgm-3 is floating in water of density 1000 kgm-3. The percentage of volume of ice-berg outside the water is
A)
20%
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B)
35%
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C)
10%
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D)
11%
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question_answer 32) Ten moles of an ideal gas at constant temperature 600 K is compressed from 100 L to 10 L. The work done in the process is
A)
\[4.11\times 104\text{ }J\]
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B)
\[-4.11\times 104\text{ }J\]
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C)
\[11.4\times 104\text{ }J\]
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D)
\[-11.4\times 104\text{ }J\]
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question_answer 33) Which of the following statements is correct for any thermodynamic system?
A)
The internal energy changes in all processes
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B)
Internal energy and entropy are state functions
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C)
The change in entropy can never be zero
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D)
The work done in an adiabatic process is always zero
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question_answer 34) Work done in placing a charge of \[8\times {{10}^{-18}}C\]on a condenser of capacity 100\[\mu \]F is
A)
\[16\times {{10}^{-32}}J\]
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B)
\[31\times {{10}^{-26}}J\]
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C)
\[4\times {{10}^{-10}}J\]
done
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D)
\[32\times {{10}^{-32}}J\]
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question_answer 35) If the electric flux entering and leaving an enclosed surface respectively is \[{{\theta }_{1}}\] and \[{{\theta }_{2}}\], the electric charge inside the surface will be
A)
\[\frac{{{\theta }_{2}}-{{\theta }_{1}}}{{{\varepsilon }_{0}}}\]
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B)
\[\frac{{{\theta }_{1}}+{{\theta }_{2}}}{{{\varepsilon }_{0}}}\]
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C)
\[\frac{{{\theta }_{1}}-{{\theta }_{2}}}{{{\varepsilon }_{0}}}\]
done
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D)
\[{{\varepsilon }_{0}}\left( {{\theta }_{1}}+{{\theta }_{2}} \right)\]
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question_answer 36) Two black metallic spheres of radius 4 m, at 2000 K and 1 m, at 4000 K will have ratio of energy radiation as
A)
1 : 1
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B)
4 : 1
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C)
1 : 4
done
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D)
2 : 1
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question_answer 37) A number of condensers, each of the capacitance 1 \[\mu \]F and each one of which gets punctured if a potential difference just exceeding 500 V is applied, are provided. An arrangement suitable for giving capacitance of 2 \[\mu \]F across which 3000 V may be applied requires at least
A)
6 component capacitors
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B)
12 component capacitors
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C)
72 component capacitors
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D)
2 component capacitors
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question_answer 38) Two wires of the same material but of different diameters carry the same current J. If the ratio of their diameters is 2 : 1, then the corresponding ratio of their mean drift velocities will be
A)
4 : 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 39) A galvanometer of resistance 15\[\Omega \] gives full scale deflection for a current of 2 mA. Calculate the shunt resistance needed to convert it into an ammeter of range 5A
A)
0.178\[\Omega \]
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B)
0.002\[\Omega \]
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C)
0.0060\[\Omega \]
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D)
5\[\Omega \]
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question_answer 40)
The current 1 drawn from the 5 V source will be
A)
0.33 A
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B)
0.5 A
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C)
0.67 A
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D)
0.17 A
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question_answer 41) Torques \[{{\tau }_{1}}\,and\,{{\tau }_{2}}\] are required for magnetic needle to remain perpendicular to the magnetic fields B1 and B2 at two different places. The ratio B1/B2 is
A)
\[\frac{{{\tau }_{2}}}{{{\tau }_{1}}}\]
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B)
\[\frac{{{\tau }_{1}}}{{{\tau }_{2}}}\]
done
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C)
\[\frac{{{\tau }_{1}}+{{\tau }_{2}}}{{{\tau }_{1}}-{{\tau }_{2}}}\]
done
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D)
\[\frac{{{\tau }_{1}}-{{\tau }_{2}}}{{{\tau }_{1}}+{{\tau }_{2}}}\]
done
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question_answer 42) The magnetic needle of a tangent galvanometer is deflected at an angle 30° due to a magnet. The horizontal component of earth's magnetic field is 0.34 10-4 T along the plane of the coil. The magnetic intensity is
A)
\[1.96\times {{10}^{-4}}T\]
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B)
\[1.96\times {{10}^{4}}T\]
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C)
\[1.96\times {{10}^{-5}}T\]
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D)
\[~1.96\times {{10}^{5}}T\]
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question_answer 43) Magnetic field at the centre of a circular loop of area A is B. The magnetic moment of the loop will be
A)
\[\frac{B{{A}^{2}}}{{{\mu }_{0}}\pi }\]
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B)
\[\frac{B{{A}^{3/2}}}{{{\mu }_{0}}\pi }\]
done
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C)
\[\frac{B{{A}^{3/2}}}{{{\mu }_{0}}{{\pi }^{1/2}}}\]
done
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D)
\[\frac{2B{{A}^{3/2}}}{{{\mu }_{0}}{{\pi }^{1/2}}}\]
done
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question_answer 44) A deutron of kinetic energy 50 keV is describing a circular orbit of radius 0.5 m, in a plane perpendicular to magnetic field B. The kinetic energy of a proton that describes circular orbit of radius 0.5 m in the same plane with the same magnetic field is
A)
200 keV
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B)
50 keV
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C)
100 keV
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D)
25 keV
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question_answer 45) Magnetic flux in weber in a closed circuit of resistance 10\[\Omega \] varies with time t (sec) as \[\phi =6{{t}^{2}}-5t+1.\].The magnitude of induced current at t = 0.25 s is
A)
0.2 A
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B)
0.6 A
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C)
1.2 A
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D)
0.8 A
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question_answer 46) A solenoid carrying a current supplied by a DC source with a constant emf contains iron rod inside it. When the rod is pulled out of the solenoid, then the current in the solenoid will
A)
increase
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B)
decrease
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C)
remain constant
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D)
becomes zero
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question_answer 47) A conducting rod of length l is falling with a velocity v perpendicular to a uniform horizontal magnetic field B. The potential difference between its two ends will be
A)
\[2\,Blv\]
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B)
\[Blv\]
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C)
\[\frac{1}{2}Blv\]
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D)
\[{{B}^{2}}{{l}^{2}}{{v}^{2}}\]
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question_answer 48) One- fourth length of a spring of force constant k is cui away. The force constant of the remaining spring will be
A)
\[\frac{3}{4}k\]
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B)
\[\frac{4}{3}k\]
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C)
k
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D)
4 k
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question_answer 49) There are two electric bulbs of 40 W and 100 W. Which one will be brighter when first connected in series and then in parallel?
A)
40 W in series and 100 W in parallel
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B)
100 W in series and 40 W in parallel
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C)
40 W both in series and parallel will be uniform
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D)
100 W both in series and parallel will be uniform
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question_answer 50) An X-ray tube is operated at 50 kV. The minimum wavelength produced is
A)
0.5 \[{{A}^{o}}\]
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B)
0.75 \[{{A}^{o}}\]
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C)
0.25 \[{{A}^{o}}\]
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D)
1\[{{A}^{o}}\]
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question_answer 51) Least volatile hydrogen halide is
A)
HF
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B)
\[\text{HCl}\]
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C)
HI
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D)
\[\text{HBr}\]
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question_answer 52) Which of the following has the highest electron affinity?
A)
\[{{\text{F}}^{-}}\]
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B)
\[{{\text{O}}^{-}}\]
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C)
\[\text{O}\]
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D)
Na
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question_answer 53) Highest oxidation state of Mn is present in
A)
\[\text{KMn}{{\text{O}}_{\text{4}}}\]
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B)
\[{{\text{K}}_{\text{2}}}\text{Mn}{{\text{O}}_{\text{4}}}\]
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C)
\[\text{M}{{\text{n}}_{\text{2}}}{{\text{O}}_{\text{3}}}\]
done
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D)
\[\text{Mn}{{\text{O}}_{\text{2}}}\]
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question_answer 54) Maximum number of H-bonds in one molecule of water is
A)
1
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B)
2
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C)
3
done
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D)
4
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question_answer 55) Among the given compounds, one which can be distinguished by \[\text{AgN}{{\text{O}}_{\text{3}}}\]is
A)
ethane
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B)
ethylene
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C)
acetylene
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D)
diethyl ether
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question_answer 56) Oxalic acid on heating with cone. \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\]gives
A)
CO only
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B)
\[\text{C}{{\text{O}}_{\text{2}}}\] Only
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C)
\[\text{C}{{\text{O}}_{\text{2}}}\text{+ }{{\text{H}}_{\text{2}}}\text{O}\]
done
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D)
\[\text{CO + C}{{\text{O}}_{\text{2}}}\text{+ }{{\text{H}}_{\text{2}}}\text{O}\]
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question_answer 57) Violet coloured complex obtained in the detection of sulphur is
A)
\[\text{N}{{\text{a}}_{2}}[Fe(NO){{(CN)}_{5}}]\]
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B)
\[N{{a}_{3}}[Fe(ONS){{(CN)}_{5}}]\]
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C)
\[N{{a}_{4}}[Fe{{(CN)}_{5}}NOS]\]
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D)
Both and
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question_answer 58) Deuterium nucleus contains
A)
\[1p+1n\]
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B)
\[2p+0n\]
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C)
\[1p+1{{e}^{-}}\]
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D)
\[2p+2n\]
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question_answer 59) In an organic compound, phosphorus is estimated as
A)
\[M{{g}_{2}}{{P}_{2}}{{O}_{7}}\]
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B)
\[M{{g}_{3}}{{(P{{O}_{4}})}_{2}}\]
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C)
\[{{H}_{3}}P{{O}_{4}}\]
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D)
\[{{P}_{2}}{{O}_{5}}\]
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question_answer 60) Number of atoms present in 4.25 g of \[\text{N}{{\text{H}}_{\text{3}}}\]is
A)
\[6.023\times 1023\]
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B)
\[4\times 6.023\times 1023\]
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C)
\[1.7\times 1024\]
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D)
\[4.25\times 6.023\times 1023\]
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question_answer 61) Chemical formula of phosgene is
A)
\[COC{{l}_{2}}\]
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B)
\[CaOC{{l}_{2}}\]
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C)
\[CaC{{O}_{3}}\]
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D)
\[COCl\]
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question_answer 62) IUPAC nomenclature of \[{{H}_{3}}C-\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-CH=\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,-C{{H}_{3}}\]is
A)
2, 4, 4-trimethylpent-2-ene
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B)
2, 4, 4-trimethylpent-3-ene
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C)
2, 2, 4-trimethylpent-3-ene
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D)
2, 2, 4-trimethylpent-2-ene
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question_answer 63) If 1 mL of water contains 20 drops then number of molecules in a drop of water is
A)
\[6.023\times {{10}^{23}}\]molecules
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B)
\[1.376\times {{10}^{26}}\]molecules
done
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C)
\[1.344\times {{10}^{18}}\]molecules
done
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D)
\[4.346\times {{10}^{20}}\]molecules
done
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question_answer 64) Chemical formula of Prussian blue is
A)
\[N{{a}_{4}}[Fe{{(CN)}_{6}}]\]
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B)
\[{{K}_{4}}[Fe{{(CN)}_{6}}]\]
done
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C)
\[F{{e}_{4}}{{[Fe{{(CN)}_{6}}]}_{3}}\]
done
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D)
None of these
done
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question_answer 65) \[Pb+Conc.\text{ }\,HN{{O}_{3}}\]gives
A)
\[Pb{{(N{{O}_{3}})}_{2}}+N{{O}_{2}}\]
done
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B)
\[PbN{{O}_{3}}+NO\]
done
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C)
\[Pb{{(N{{O}_{3}})}_{4}}+N{{O}_{3}}\]
done
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D)
\[Pb{{(N{{O}_{3}})}_{3}}+{{N}_{2}}O\]
done
clear
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question_answer 66) \[{{N}_{2}}\]gas will not be evolved upon reaction of \[\text{HN}{{\text{O}}_{\text{2}}}\]with which of the following amines?
A)
\[{{1}^{o}}\]
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B)
\[{{2}^{o}}\]
done
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C)
\[{{3}^{o}}\]
done
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D)
Both and
done
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question_answer 67) Which of the following carbonates is the most stable?
A)
\[MgC{{O}_{3}}\]
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B)
x
done
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C)
done
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D)
done
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question_answer 68) 100 mL of HCl + 35 mL of NaOH, colour of methyl orange in the solution will be
A)
red
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B)
yellow
done
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C)
can't be predicted
done
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D)
methyl orange is not a suitable indicator
done
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question_answer 69)
Number of acyclic isomers of the compound having the molecular formula is
A)
4
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B)
6
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C)
5
done
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D)
7
done
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A)
done
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B)
done
clear
C)
done
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D)
None of the above
done
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A)
350
done
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B)
280
done
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C)
30
done
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D)
315
done
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question_answer 72) How many moles of iodine are liberated when 1 mole of potassium dichromate reacts with potassium iodide?
A)
1
done
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B)
2
done
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C)
3
done
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D)
4
done
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A)
phenylacetic acid exists as such in benzene
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B)
phenylacetic acid undergoes partial ionisation in benzene
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C)
phenylacetic acid undergoes complete ionisation in benzene
done
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D)
phenylacetic acid dimerises in benzene
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question_answer 74)
In the following reaction, the product 'R' is
A)
benzene
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B)
ethylbenzene
done
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C)
toluene
done
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D)
n-propylbenzene
done
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question_answer 75)
Bromine water reacts with to form
A)
HBr and S
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B)
and HBr
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C)
S and
done
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D)
and HBr
done
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question_answer 76) Which of the following transition metal ions is not coloured?
A)
\[C{{u}^{+}}\]
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B)
\[{{V}^{3+}}\]
done
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C)
\[C{{o}^{2+}}\]
done
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D)
\[N{{i}^{2+}}\]
done
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question_answer 77) The reaction, \[{{N}_{2}}{{O}_{5}}\]in \[CC{{l}_{4}}(solution)\xrightarrow[{}]{{}}2N{{O}_{2}}(solution)+\frac{1}{2}{{O}_{2}}(g)\]is of first order in \[{{N}_{2}}{{O}_{5}}\]with rate constant \[6.2\times {{10}^{-4}}{{s}^{-1}}.\] What is the value of rate of reaction when \[[{{N}_{2}}{{O}_{5}}]=1.25\,mol\,{{L}^{-1}}\]?
A)
\[5.15\times {{10}^{-5}}\,mol\,{{L}^{-1}}{{s}^{-1}}\]
done
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B)
\[6.35\times {{10}^{-3}}\,mol\,{{L}^{-1}}{{s}^{-1}}\]
done
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C)
\[7.75\times {{10}^{-4}}\,mol\,{{L}^{-1}}{{s}^{-1}}\]
done
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D)
\[3.85\times {{10}^{-4}}\,mol\,{{L}^{-1}}{{s}^{-1}}\]
done
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question_answer 78) A developer used in photography is
A)
a weak acid
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B)
a weak base
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C)
a mild reducing agent
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D)
an oxidizing agent
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question_answer 79) If 1 mole of an ideal gas expands isothermally at \[37{{\,}^{o}}C\]from 15 L to 25 L, the maximum work obtained is
A)
12.87 J
done
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B)
6.43 J
done
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C)
8.57 J
done
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D)
2.92 J
done
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question_answer 80) The shape of \[\text{I}{{\text{F}}_{\text{7}}}\]molecule is
A)
octahedral
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B)
trigonal bipyramidal
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C)
tetrahedral
done
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D)
pentagonal bipyramidal
done
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question_answer 81) Hydrolysis of sucrose is called
A)
inversion
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B)
esterification
done
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C)
hydration
done
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D)
saponification
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question_answer 82) What will be the partial pressure of He and \[{{O}_{2}}\] respectively, if 200 mL of He at 0.66 atm and 400 mL of \[{{O}_{2}}\] at 0.52 atm pressure are mixed in 400 mL vessel at \[20{{\,}^{o}}C\]?
A)
0.33 and 0.56
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B)
0.33 and 0.52
done
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C)
0.38 and 0.52
done
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D)
0.25 and 0.45
done
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question_answer 83) In which process, fused sodium hydroxide is electrolysed for extraction of sodium?
A)
Castnefs process
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B)
Cyanide process
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C)
Down's process
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D)
Both and
done
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question_answer 84) At room temperature, the eclipsed and staggered forms of ethane cannot be isolated because
A)
they interconvert rapidly
done
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B)
both the conformers are equally stable
done
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C)
the energy difference between the conformers is large
done
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D)
there is a large energy barrier of rotation about the \[\sigma \] bond
done
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question_answer 85) In an experiment, 4 g of \[{{M}_{2}}{{O}_{x}}\]oxide was reduced to 2.8 g of the metal. If the atomic mass of the metal is \[56\,g\,mo{{l}^{-1}},\] the number of O atoms in the oxide is
A)
1
done
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B)
2
done
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C)
3
done
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D)
4
done
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question_answer 86) Hydrolysis of trichloromethane with aqueous KOH gives
A)
methanol
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B)
acetic acid
done
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C)
ethanol
done
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D)
formic acid
done
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question_answer 87) Primary, secondary and tertiary amines can be distinguished by
A)
SchifPs test
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B)
Fehling's test
done
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C)
Tollen's test
done
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D)
Hinsberg test
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question_answer 88) In the complex ion \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{3+}},\] the \[N{{H}_{3}}\]molecules are linked to the central metal ion by
A)
ionic bonds
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B)
covalent bonds
done
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C)
coordinate bonds
done
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D)
hydrogen bonds
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question_answer 89) The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calorimeter at \[25{{\,}^{o}}C\]increases the temperature of 18.94 kg of water by\[~{{0.632}^{o}}C.\] If the specific heat of water at \[{{25}^{o}}C\] is 0.998 cal/g-deg, the value of the heat of combustion of benzoic acid is
A)
881.1kcal
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B)
771.4 kcal
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C)
981.1 kcal
done
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D)
871.2 kcal
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question_answer 90) When ethanal is treated with Fehling's solution, it gives a precipitate of
A)
\[C{{u}_{2}}O\]
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B)
Cu
done
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C)
\[C{{u}_{3}}O\]
done
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D)
\[CuO\]
done
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question_answer 91) The electronegativity of the following elements increases in the order
A)
\[C,N,Si,P\]
done
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B)
\[N,Si,C,P\]
done
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C)
\[Si,P,C,N\]
done
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D)
\[P,Si,N,C\]
done
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question_answer 92) Permanent hardness of water can be removed by adding
A)
\[N{{a}_{2}}C{{O}_{3}}\]
done
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B)
K
done
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C)
\[Ca(OCl)Cl\]
done
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D)
\[C{{l}_{2}}\]
done
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question_answer 93) The compound containing coordinate bond is
A)
\[S{{O}_{3}}\]
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B)
\[{{O}_{3}}\]
done
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C)
\[{{H}_{2}}S{{O}_{4}}\]
done
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D)
All of these
done
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question_answer 94) Which of the following molecules has trigonal planar geometry?
A)
\[B{{F}_{3}}\]
done
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B)
\[N{{H}_{3}}\]
done
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C)
\[P{{H}_{3}}\]
done
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D)
\[I{{F}_{3}}\]
done
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question_answer 95) Which of the following compounds, on reaction with NaOH and \[N{{a}_{2}}{{O}_{2}},\]gives yellow colour?
A)
\[Zn{{(OH)}_{2}}\]
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B)
\[Al{{(OH)}_{3}}\]
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C)
\[Cr{{(OH)}_{3}}\]
done
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D)
\[CaC{{O}_{3}}\]
done
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question_answer 96)
The major organic product formed from the following reaction
A)
done
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B)
done
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C)
done
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D)
done
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question_answer 97) If 1,3-dibromopropane reacts with zinc and \[\text{N}\text{aI,}\]the product obtained is
A)
propene
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B)
propane
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C)
cyclopropane
done
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D)
hexane
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question_answer 98) In the equation;\[4M+8C{{N}^{-}}+2{{H}_{2}}O+{{O}_{2}}\xrightarrow[{}]{{}}\] \[4{{[M{{(CN)}_{2}}]}^{-}}+4O{{H}^{-}}\] Identify the metal M.
A)
copper
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B)
iron
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C)
gold
done
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D)
zinc
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question_answer 99) Ammonia, on reaction with excess of chlorine, gives
A)
\[NC{{l}_{3}}\]and \[HCl\]
done
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B)
\[{{N}_{4}}\]and \[N{{H}_{4}}Cl\]
done
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C)
\[NC{{l}_{3}}\]and \[N{{H}_{4}}Cl\]
done
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D)
\[~{{N}_{2}}\] and \[HCl\]
done
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question_answer 100) If the supply of oxygen is limited, \[{{H}_{2}}S\]reacts with \[{{O}_{2}}\] to form
A)
\[{{H}_{2}}O+S{{O}_{3}}\]
done
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B)
\[{{H}_{2}}O+S\]
done
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C)
\[{{H}_{2}}S{{O}_{4}}+S\]
done
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D)
\[~{{H}_{2}}O+S{{O}_{2}}\]
done
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question_answer 101) Edible part of mango is
A)
epicarp
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B)
endocarp
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C)
mesocarp
done
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D)
receptacle
done
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question_answer 102) Fifth cranial nerve of frog is
A)
facial
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B)
olfactory
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C)
trigeminal
done
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D)
vagus
done
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question_answer 103) What do you mean by closed vascular bundle?
A)
Cambium present
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B)
Cambium absent
done
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C)
Periderm absent
done
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D)
None of these
done
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question_answer 104) Pectoral girdle constitute
A)
scapula and clavicle
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B)
radius and ulna
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C)
ilium and ischium
done
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D)
maxilla and mandible
done
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question_answer 105) Which of the following hormones is correctly matched with its deficiency disease?
A)
Relaxin - Cretinism
done
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B)
Parathormone - Tetan
done
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C)
Insulin - Diabetes insipidus
done
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D)
Prolactin - Astigmatism
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question_answer 106) Which of the ecological pyramid is always upright?
A)
Pyramid of number
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B)
Pyramid of biomass
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C)
Pyramid of energy
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D)
None of the above
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question_answer 107) Brunner?s gland is present in
A)
liver
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B)
duodenum
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C)
oesophagus
done
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D)
stomach
done
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question_answer 108) Example of corm is
A)
ginger
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B)
Colocasia
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C)
onion
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D)
potato
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question_answer 109) Binomial nomenclature was given by
A)
R.H. Whittaker
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B)
Linnaeus
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C)
Aristotle
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D)
Theophrastus
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question_answer 110) Sand fly act as vector for which disease?
A)
African sleeping sickness
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B)
Kala-azar
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C)
Oriental sore
done
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D)
Filaria
done
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question_answer 111) Barr body is present in
A)
sperm
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B)
ovum
done
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C)
somatic cell of female
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D)
somatic cell of male
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question_answer 112) Malpighian tubules are analogous to
A)
trachea of cockroach
done
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B)
gills
done
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C)
flame cells
done
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D)
None of the above
done
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question_answer 113) Cloacal aperture of frog is used to pass out
A)
sperm
done
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B)
faeces
done
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C)
urine
done
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D)
All of these
done
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question_answer 114) Clitellum segment of earthworm constitutes segments
A)
7, 8, 9
done
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B)
10 to 12
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C)
14 to 16
done
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D)
18 to 20
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question_answer 115) Botanical name of banana is
A)
Musa paradisiaca
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B)
Musa arietinum
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C)
Mimosa pudica
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D)
Iberisamara
done
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question_answer 116) Japanese encephalitis is transmitted by
A)
housefly
done
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B)
tsetse fly
done
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C)
sand fly
done
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D)
mosquito
done
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question_answer 117) Monocot stem lacks
A)
tracheids
done
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B)
sieve tube
done
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C)
cambium
done
clear
D)
None of these
done
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question_answer 118) What is present in the middle piece of sperm?
A)
Acrosome
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B)
Mitochondria
done
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C)
Nucleus
done
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D)
Proximal centriole
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question_answer 119)
Primary acceptor in -plants is
A)
RuBP
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B)
oxaloacetate
done
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C)
phosphoglyceraldehyde
done
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D)
PEP
done
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question_answer 120) Nitrogen is absorbed by plants in form of
A)
\[N{{O}_{3}}\]
done
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B)
\[N{{H}_{3}}\]
done
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C)
\[N{{O}_{2}}^{-}\]
done
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D)
Both (a) and (c)
done
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question_answer 121) Pulmonary vein carries
A)
deoxygenated blood
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B)
oxygenated blood
done
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C)
mixed blood
done
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D)
None of the above
done
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question_answer 122) Hydathode helps in
A)
transpiration
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B)
guttation
done
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C)
photosynthesis
done
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D)
respiration
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question_answer 123) Organ of Corti helps in
A)
maintaining equilibrium
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B)
hearing
done
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C)
formation of wax
done
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D)
All of the above
done
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question_answer 124) The volume of air inspired or expired during normal respiration is called
A)
tidal volume
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B)
inspiratory reserve volume
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C)
expiratory reserve volume
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D)
residual volume
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question_answer 125) Function of ADH is
A)
reabsorption of water
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B)
reabsorption of sodium
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C)
diluting the urine
done
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D)
increasing sugar level in urine
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question_answer 126) Function of ABA is
A)
apical dominance
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B)
growth inhibition
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C)
cell division
done
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D)
seed germination
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question_answer 127) Blood clotting corpuscle is
A)
thrombocyte
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B)
monocyte
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C)
lymphocyte
done
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D)
erythrocyte
done
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question_answer 128) Which of the following is produced by genetically engineered bacteria?
A)
Thyroxine
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B)
Insulin
done
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C)
Glucagon
done
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D)
ADH
done
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question_answer 129) Biogas production is carried out by
A)
the rmoacidophils
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B)
methanogens
done
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C)
halophiles
done
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D)
ruminants
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question_answer 130) In cold climate, the animals have short tail, shorter limbs and ear, this is called
A)
Allen's law
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B)
Bergman's law
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C)
Cope's rule
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D)
Jordan's law
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question_answer 131) Triticale is produced by the crossing of
A)
wheat and rye
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B)
wheat and maize
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C)
wheat and barley
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D)
rye and maize
done
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question_answer 132) The structure which contain vascular bundle and is modification of stem is
A)
bristles
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B)
thorn
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C)
prickle
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D)
spine
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question_answer 133) Cu-T prevents pregnancy by preventing
A)
fertilization
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B)
ovulation
done
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C)
implantation of fertilised egg
done
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D)
None of the above
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question_answer 134) DNA replication occurs during which part of cell cycle?
A)
\[{{G}_{1}}-\text{phase}\]
done
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B)
\[S-\text{phase}\]
done
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C)
\[{{G}_{2}}-\text{phase}\]
done
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D)
Dividing phase
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question_answer 135) Digestive enzyme hydrolases are present in
A)
vacuole
done
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B)
lysosomes
done
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C)
Golgi bodies
done
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D)
mitochondria
done
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question_answer 136) Tendons and ligaments are kind of
A)
muscular tissue
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B)
connective tissue
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C)
epidermal tissue
done
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D)
nervous tissue
done
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question_answer 137) How many haeme molecules are present in one molecule of haemoglobin?
A)
One
done
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B)
Two
done
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C)
Three
done
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D)
Four
done
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question_answer 138) Nitrogenous bases present in DNA
A)
adenine, guanine, cytosine, thymine
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B)
adenine, guanine, cytosine, uracil
done
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C)
adenine, thymine, uracil
done
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D)
guanine, uracil
done
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question_answer 139) Which of the following is a false fruit?
A)
Mango
done
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B)
Apple
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C)
Banana
done
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D)
Jack fruit
done
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question_answer 140) FAD acts as an electron acceptor in between
A)
fumaric and malic acid
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B)
succinic and fumaric acid
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C)
malic and oxaloacetic acid
done
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D)
citric and isocitric acid
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question_answer 141) Pigment iodopsin is contained in
A)
rod cells
done
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B)
cone cells
done
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C)
amacrine cells
done
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D)
horizontal cells
done
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question_answer 142) Which of the given is a long day plant?
A)
Glycine max
done
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B)
Spinach
done
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C)
Chrysanthemum
done
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D)
Tobacco
done
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question_answer 143) Sexual reproduction is absent in
A)
Ascomycetes
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B)
Deuteromycetes
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C)
Basidiomycetes
done
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D)
Phycomycetes
done
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question_answer 144) Connecting link between Annelida and Mollusca is
A)
Peripatus
done
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B)
Neupilina
done
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C)
Proterospongia
done
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D)
Archeopteryx
done
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question_answer 145) Plant growth is measured by
A)
auxanometer
done
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B)
porometer
done
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C)
potometer
done
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D)
respirometer
done
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question_answer 146) Life span of Ascaris is
A)
3 to 6 months
done
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B)
6 to 9 months
done
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C)
9 to 12 months
done
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D)
12 to 18 months
done
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question_answer 147) \[C{{O}_{2}}\]is transported in blood mostly by means of
A)
plasma
done
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B)
bicarbonate ion
done
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C)
carbaminohaemoglobin
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D)
None of the above
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question_answer 148) Similarity between Anopheles and Culex is
A)
eggs are laid in floating raft
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B)
respiratory siphon is present
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C)
eggs have lateral air floats
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D)
males of both suck juices of flowers and fruits
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question_answer 149) Which one of the following describes correctly the homologous structures?
A)
Organs with anatomical similarities, but performing different functions
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B)
Organs with anatomical dissimilarities, but performing same function
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C)
Organs that have no function now, but had important function in ancestors
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D)
Organs appearing only in embryonic stage and disappearing later in the adult
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question_answer 150) Botanical name of peat moss is
A)
Sphagnum
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B)
Funaria
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C)
Anthoceros
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D)
Polytrichum
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question_answer 151) Which of the following is not a condition for becoming a citizen of India?
A)
Birth
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B)
Acquiring property
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C)
Descent
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D)
Naturalisation
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question_answer 152) Who among the following is known as the ?Father of the Indian Constitution??
A)
Dr. B.R. Ambedkar
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B)
Mahatma Gandhi
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C)
Jawaharlal Nehru
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D)
Vallabhbhai Patel
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question_answer 153) The Indian National Army (I.N.A.) came into existence in
A)
Burma
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B)
Japan
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C)
Malaysia
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D)
Singapore
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question_answer 154) The Indian Constitution closely follows the constitutional system of
A)
USA
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B)
UK
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C)
Switzerland
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D)
Russia
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question_answer 155) ?Leading the way5 is an ad jingle of
A)
Motorola
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B)
Hero Honda
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C)
Toyota
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D)
Indica V2
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question_answer 156) Swaraj as a national demand was first made by
A)
Chittaranjan Das
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B)
Jawaharlal Nehru
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C)
Dadabhai Naoroji
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D)
BalGangadharTilak
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question_answer 157) Which of the following countries does not belong to the group of G-8 nations?
A)
Italy
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B)
Canada
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C)
Germany
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D)
Australia
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question_answer 158) Which of the following is not a stringed instrument?
A)
Guitar
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B)
Sitar
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C)
Trumpet
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D)
Violin
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question_answer 159) Which of the following was the first newspaper of India?
A)
The Times of India
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B)
Maratha, Kesari
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C)
Bengal Gazette
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D)
The Hindu
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question_answer 160) The largest coal reserves of India are found in
A)
Chhattisgarh
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B)
Jharkhand
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C)
Madhya Pradesh
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D)
Orissa
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question_answer 161) Who among the following pioneered ?Khilafat Movement??
A)
Sir Syed Ahmed Khan
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B)
M.A. Jinnah
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C)
Mahatma Gandhi
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D)
All Brothers
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question_answer 162) The first Indian woman President of the Indian National Congress was
A)
Sarojini Naidu
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B)
Kasturba Gandhi
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C)
Annie Besant
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D)
VijayalakshmiPandit
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question_answer 163) Who was founder of ?All India HarijanSangha? in 1932?
A)
M.K. Gandhi
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B)
B.R. Ambedkar
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C)
Jagjivan Ram
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D)
Vinoba Bhave
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question_answer 164) Which country is the largest film producer in the world?
A)
India
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B)
America
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C)
China
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D)
England
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question_answer 165) Mahatma Gandhi was assassinated on
A)
January 26, 1948
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B)
January 30, 1948
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C)
January 30, 1949
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D)
January 26, 1950
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question_answer 166) Heinrich Hertz, who discovered radio waves, belonged to
A)
Germany
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B)
Sweden
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C)
USA
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D)
UK
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question_answer 167) Before Delhi, where was the capital of India during the British India?
A)
Lucknow
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B)
Bombay
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C)
Calcutta
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D)
Patna
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question_answer 168) What is the minimum permissible age for employment in any factory or mine?
A)
12 years
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B)
14 years
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C)
16 years
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D)
18 years
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question_answer 169) ?World Environment Da/ is celebrated on
A)
June 5
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B)
September 7
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C)
October 8
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D)
February 10
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question_answer 170) BPO is an abbreviation for
A)
Bharat Petroleum Organisation
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B)
Business Process Outsourcing
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C)
Business Products Outsourcing
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D)
Bharat Pesticides Outlet
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question_answer 171) Which of the following is used as a coolant in nuclear reactors?
A)
Heavy water
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B)
Cadmium
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C)
Liquid sodium
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D)
Graphite
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question_answer 172) In an atomic nucleus, neutrons and protons are held together by
A)
gravitational forces
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B)
magnetic forces
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C)
exchange forces
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D)
coulombic forces
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question_answer 173) Which of the following are most penetrating?
A)
\[\text{ }\!\!\alpha\!\!\text{ -}\]rays
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B)
\[\text{ }\!\!\beta\!\!\text{ -}\]rays
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C)
\[\text{ }\!\!\gamma\!\!\text{ -}\]rays
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D)
\[\text{X-}\]rays
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question_answer 174) The average salinity of sea water is
A)
2%
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B)
2.5%
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C)
3%
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D)
3.5%
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question_answer 175) The purest form of iron is
A)
steel
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B)
cast iron
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C)
pig iron
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D)
wrought iron
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question_answer 176) The most malleable metal is
A)
silver
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B)
gold
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C)
aluminium
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D)
sodium
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question_answer 177) Carbon, diamond and graphite are together called
A)
isomers
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B)
allotropes
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C)
isomorphs
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D)
isotopes
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question_answer 178) In which organ of the human body, are the lymphocyte cells formed?
A)
Liver
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B)
Long bone
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C)
Pancreas
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D)
Spleen
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question_answer 179) Flower colours are due to
A)
chlorophyll
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B)
melanin
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C)
phytochromes
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D)
anthocyanins
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question_answer 180) Which among the following is the richest source of ascorbic acid?
A)
Apple
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B)
Bean
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C)
Carrot
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D)
Guava
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question_answer 181) I can do a piece of work in 8 days, which can be done by you in 10 days. How long will it take to do it if we work together?
A)
4
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B)
3
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C)
5
done
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D)
9
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question_answer 182) A car can finish a certain journey in 10 h @ 48 km/h. In order to cover the same distance in 8 h, the speed of the car must be increased by
A)
6 km/h
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B)
7.5 km/h
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C)
12 km/h
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D)
15 km/h
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question_answer 183) After being set up, a company manufactured 6000 scooters in the third year and 7000 scooters in the seventh year. Assuming that the production increases uniformly by a fixed number every year, what is the production in the tenth year?
A)
7850
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B)
7650
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C)
7750
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D)
7950
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question_answer 184) If Dennis is 1/3rd the age of his father Keith now, and was 1/4th the age of his father 5 years ago, then how old will his father Keith be 5 years from now?
A)
20 years
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B)
45 years
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C)
40 years
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D)
50 years
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question_answer 185) Rs. 6500 were divided equally among a certain number of persons. Had there been 15 more persons each would have got Rs 30 less. Find the original number of persons.
A)
45
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B)
50
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C)
55
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D)
48
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question_answer 186) What is the profession of E?
A)
Lawyer
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B)
Teacher
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C)
Engineer
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D)
Doctor
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question_answer 187) How A is related to E?
A)
Brother
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B)
Uncle
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C)
Mother
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D)
Grandfather
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question_answer 188) What is the minimum number of females in the family?
A)
One
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B)
Two
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C)
Three
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D)
Four
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question_answer 189) What is the profession of A?
A)
Lawyer
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B)
Teacher
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C)
Engineer
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D)
Doctor
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question_answer 190) Which of the following is the pairs of couples in the family?
A)
AD and BC
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B)
AB and BD
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C)
FE and AD
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D)
DE and BF
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question_answer 191) Which of the following words best describes fungus as depicted in the passage?
A)
Unevolved
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B)
Sporadic
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C)
Enigmatic
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D)
Parasitic
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question_answer 192) The passage states all the following about fungi except
A)
they are responsible for the decomposition of much plant life
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B)
they cannot live completely apart from other plants
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C)
they are vastly different from other plants
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D)
they are poisonous to resin-producing plants
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question_answer 193) The author?s statement that ?you are watching a fungus eating? can be best described as
A)
figurative
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B)
ironic
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C)
erroneous
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D)
contradictory
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question_answer 194) Which of the following statements is not implied in the passage?
A)
Humans receive energy from plants
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B)
Fungi cannot assimilate the sun?s energy on their own
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C)
The source of energy of plants is chlorophyll
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D)
The ultimate source of energy is the sun
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question_answer 195) The author is primarily concerned with
A)
warning people of the dangers of fungi
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B)
relating how most plants use solar energy
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C)
describing the action of fungi
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D)
explaining the long life of redwood trees
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question_answer 196) Select the appropriate word, which is nearest in meaning to the word given in capital letters. Charges
A)
Income
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B)
Payment
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C)
Fee
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D)
Profit
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question_answer 197) Select the appropriate word, which is nearest in meaning to the word given in capital letters. Endure
A)
Ensure
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B)
Tolerate
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C)
Date
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D)
Revise
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question_answer 198) Select the appropriate word, which is nearest in meaning to the word given in capital letters. Malady
A)
Ill-will
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B)
Ill-luck
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C)
Ill-feeling
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D)
Illness
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question_answer 199) Select the appropriate word, which is nearest in meaning to the word given in capital letters. Abhor
A)
Dislike
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B)
Disfigure
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C)
Hate
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D)
Unpleasant
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question_answer 200) Select the appropriate word, which is nearest in meaning to the word given in capital letters. Longing
A)
Long
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B)
Big
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C)
Desire
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D)
Divide
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