question_answer 1) The dimensional formula \[[M{{L}^{2}}{{T}^{-2}}]\] represents:
A)
momentum
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B)
acceleration
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C)
force
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D)
moment of force
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question_answer 2) The velocity of a body moving with uniform acceleration at a given instant of time is 10 m/s. After 5 seconds its velocity is 20 m/s. Distance travelled in that time is :
A)
300 m
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B)
400 m
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C)
150 m
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D)
75 m
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question_answer 3) As stone falls freely such that the distance covered by it in the last second of its motion is equal to the distance covered by it in the first 5 seconds. It is in air for :
A)
26s
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B)
25s
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C)
13s
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D)
12s
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question_answer 4) A man weighing 60 kg is in a lift moving down with an acceleration of 1.8 m/s2. The floor exerts on him a force equal to :
A)
696 N
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B)
zero
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C)
480N
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D)
588 N
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question_answer 5) An object is thrown along a direction making an angle 45° with the horizontal direction. The horizontal range of the object is equal to :
A)
twice the vertical height
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B)
vertical height
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C)
four times the vertical height
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D)
three times of vertical height
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question_answer 6) Which of the following cannot be the speed time graph :
A)
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B)
done
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C)
done
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D)
done
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question_answer 7) A body of mass 1 kg is rotating in a vertical circle of radius 1 m. What will be the difference in kinetic energy at the top and at the bottom of the circle? \[(\text{take}\,g=10\text{ }m/{{s}^{2}})\] :
A)
50 J
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B)
30 J
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C)
20J
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D)
10J
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question_answer 8) A circular ring of mass \[m\] and radius \[r\] is rolling on a smooth horizontal surface with speed \[u\]. Its kinetic energy is :
A)
\[\frac{1}{8}m{{u}^{2}}\]
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B)
\[\frac{1}{4}m{{u}^{2}}\]
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C)
\[\frac{1}{4}m{{u}^{2}}\]
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D)
\[m{{u}^{2}}\]
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question_answer 9) A satellite is revolving around the earth in a circular orbit of radius 4 times that of the parking orbit. The time period of the satellite is :
A)
16 day
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B)
2 day
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C)
4 day
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D)
8 day
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question_answer 10)
As shown in figure, a planet revolves in elliptical orbit around the sun, where K.E. of the planet is maximum :
A)
at \[{{P}_{4}}\]
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B)
at \[{{P}_{1}}\]
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C)
at \[{{P}_{2}}\]
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D)
at \[{{P}_{3}}\]
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question_answer 11) A Carnots engine operates between 400 K and 800 K, its efficiency is :
A)
25%
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B)
50%
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C)
75%
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D)
100%
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question_answer 12) The critical angle for a medium is 45°, the refractive index will be :
A)
\[\frac{1}{\sqrt{2}}\]
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B)
\[\sqrt{2}\]
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C)
\[\frac{\sqrt{3}}{2}\]
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D)
\[\frac{2}{\sqrt{3}}\]
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question_answer 13) Reactance of a capacitor of capacitance C \[\mu \]F for A.C. frequency \[\frac{400}{\pi }\]Hz is 25 \[\Omega \], the value of C is :
A)
75 \[\mu \]F
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B)
100 \[\mu \]F
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C)
25 \[\mu \]F
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D)
50 \[\mu \]F
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question_answer 14) An electron and a proton have same de-Broglie wavelength, then kinetic energy of the electron is :
A)
greater than K.E. of proton
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B)
zero
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C)
equal to K.E. of proton
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D)
Infinite
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question_answer 15) Relative permeability of iron is 5500, Its magnetic susceptibility is :
A)
5499
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B)
\[5500\times {{10}^{7}}\]
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C)
\[5500\times {{10}^{-7}}\]
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D)
5501
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question_answer 16) A force of \[7\hat{i}=6\hat{k}\] makes a body move on a plane with the velocity \[3\hat{j}+4\hat{k}\] The power developed is :
A)
\[\sqrt{45}\]
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B)
45
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C)
24
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D)
\[\sqrt{24}\]
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question_answer 17) The variation of PV graph with V of a fixed mass of on ideal gas at constant temperature is graphical) represented as shown in figure.
A)
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B)
done
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C)
done
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D)
done
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question_answer 18) The number of oxygen molecules in a cylinder of volume 1m3 at a temperature of \[27{}^\circ C\] and pressure 13.8 Pa is (Boltzmaans constant \[k=1.38\times {{10}^{-23}}J\text{ }{{K}^{-1}}\]) is :
A)
\[6.23\times {{10}^{26}}\]
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B)
\[0.33\times {{10}^{28}}\]
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C)
\[3.3\times {{10}^{21}}\]
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D)
none of these
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question_answer 19) The minimum magnifying power of a telescope is M. If the focal length of the eye lens is halved. The magnifying power will become :
A)
\[\frac{M}{4}\]
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B)
3M
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C)
2M
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D)
4M
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question_answer 20) The surface temperature is maximum for :
A)
blue star
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B)
yellow star
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C)
green star
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D)
red star
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question_answer 21) The magnifying power of Gallilean telescope in the normal adjustment is 20. The difference between the magnifying power and length of the telescope is 19.05. The focal length of objective and eyepiece are (in m) :
A)
1 and -0.05
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B)
0.05 and 2
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C)
1 and 0.05
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D)
2 and 0.05
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question_answer 22) In Youngs experiment, using light of wavelength \[6000\overset{\text{o}}{\mathop{\text{A}}}\,\] fringe width at distance 2.5 m is obtained as 0.8 mm. If the entire apparatus is immersed in a liquid of refractive index 1.6, the fringe width will be:
A)
0.2 mm
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B)
0.4 mm
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C)
0.5 mm
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D)
0.6 mm
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question_answer 23) In double slit experiment, the angular width of interference fringes with sodium light \[(\lambda =5890\overset{\text{o}}{\mathop{\text{A}}}\,)\] is \[0.20{}^\circ \]. The change in wavelength required to increase the angular. width by 10% will be :
A)
zero
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B)
increased by \[6479\overset{\text{o}}{\mathop{\text{A}}}\,\]
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C)
increased by \[589\overset{\text{o}}{\mathop{\text{A}}}\,\]
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D)
decreased by \[589\overset{\text{o}}{\mathop{\text{A}}}\,\]
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question_answer 24) SHM is executed by a particle of mass m, the, displacement of the particle is\[\left( \frac{1}{\sqrt{2}} \right)\] times the amplitude. What fraction or the total energy is kinetic at this displacement:
A)
\[\frac{\sqrt{3}}{2}\]
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B)
\[\frac{1}{\sqrt{2}}\]
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C)
\[\frac{3}{4}\]
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D)
\[\frac{1}{2}\]
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question_answer 25) The period of SHM of a particle is 12s. The phase difference between the position at t = 3s and t = 4s will be :
A)
\[\pi /4\]
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B)
\[3\pi /5\]
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C)
\[\pi /6\]
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D)
\[\pi /2\]
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question_answer 26) The volume of a metal sphere increases by 0.15% when its temperature is raised by 24°C. The coefficient of linear expansion of metal is:
A)
\[2.0\times {{10}^{-50}}C\]
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B)
\[2.0\times {{10}^{-5/0}}C\]
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C)
\[1.5\times {{10}^{-5/0}}C\]
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D)
\[1.2\times {{10}^{-5/0}}C\]
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question_answer 27) The radii of two soap bubbles are \[{{r}_{1}}\] and \[{{r}_{2}}\]\[({{r}_{2}}>{{r}_{1}}).\] When they come into contact, the radius of their common interface is :
A)
\[{{r}_{2}}-{{r}_{1}}\]
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B)
\[\sqrt{r_{1}^{2}-r_{2}^{2}}\]
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C)
\[\frac{{{r}_{1}}+{{r}_{2}}}{2}\]
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D)
\[\frac{{{r}_{1}}{{r}_{2}}}{{{r}_{2}}-{{r}_{1}}}\]
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question_answer 28) 28. A ray of light is incident on the surface of a glass slab at 60°. The refractive index of glass, if the reflected and refracted rays are mutually perpendicular to each other, will be :
A)
1.5
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B)
4.16
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C)
2.25
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D)
1.414
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question_answer 29) A stretched string is 1 m long. Its mass per unit length is 0.5 g/m. It is stretched with a force of 20 N. It plucked at a distance of 25 cm from one end. The frequency of note emitted by it will be :
A)
400 Hz
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B)
300 Hz
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C)
200 Hz
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D)
100 Hz
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question_answer 30) A transverse wave is given by \[y\] = A \[\sin 2\pi (ft-x/\lambda )\].The maximum particle velocity is 4 times the wave velocity when :
A)
\[\lambda =2\pi A\]
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B)
\[\lambda =\pi A\]
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C)
\[\lambda =\pi A/2\]
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D)
\[\lambda =\pi A/4\]
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question_answer 31) The energy in eV of red light of wavelength \[\lambda =6560\overset{\text{o}}{\mathop{\text{A}}}\,:\]
A)
1.89 eV
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B)
2.89 eV
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C)
3.89 eV
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D)
4.89 eV
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question_answer 32) Given the wavelength of first member of Lyman series is \[1215\overset{\text{o}}{\mathop{\text{A}}}\,\]. The wavelength of Ha line is :
A)
\[6561\overset{\text{o}}{\mathop{\text{A}}}\,\]
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B)
\[5464\overset{\text{o}}{\mathop{\text{A}}}\,\]
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C)
\[800\overset{\text{o}}{\mathop{\text{A}}}\,\]
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D)
\[4840\overset{\text{o}}{\mathop{\text{A}}}\,\]
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question_answer 33) When silver is irradiated by ultraviolet light of \[1000\overset{\text{o}}{\mathop{\text{A}}}\,\], potential of 7.7 V is required to stop the photoelectrons. The work function of silver will be :
A)
3.72 eV
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B)
6.72 eV
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C)
5.72 eV
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D)
4.72 eV
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question_answer 34) Maximum kinetic energy \[{{E}_{k}}\] of a photoelectron varies with the frequency v of the incident radiation as :
A)
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B)
done
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C)
done
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D)
done
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question_answer 35) A radioactive element has half-life period 1600 year. After 6400 year, what part of element will remain?
A)
\[\frac{1}{4}\]
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B)
\[\frac{1}{8}\]
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C)
\[\frac{1}{16}\]
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D)
\[\frac{1}{2}\]
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question_answer 36) For a transistor \[{{I}_{e}}\]c = 25 mA and \[{{I}_{b}}\]= 1 mA. The value of current gain \[\alpha \] will be :
A)
\[\frac{25}{24}\]
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B)
\[\frac{24}{25}\]
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C)
\[\frac{25}{26}\]
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D)
\[\frac{26}{25}\]
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question_answer 37) When two semiconductors of \[p\] and \[n\] type are brought into contact, they form a \[p-n\] junction which acts like a :
A)
rectifier
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B)
amplifier
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C)
oscillator
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D)
conductor
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question_answer 38) The de-Broglie wavelength of 1 kg mass moving with a velocity of 10 m/s, will be :
A)
\[6.626\times {{10}^{-35}}m\]
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B)
\[6.626\times {{10}^{-34}}m\]
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C)
\[6.626\times {{10}^{-33}}m\]
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D)
none of these
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question_answer 39) Which of the following figure represents the variation of particle momentum and associated de-Broglie wavelength?
A)
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B)
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C)
done
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D)
done
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question_answer 40) If R, C and L denote resistance, capacitance and inductance. Which of the following will not have the dimension of frequency :
A)
\[[R{{L}^{-1}}]\]
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B)
\[[{{R}^{-1}}{{C}^{-1}}]\]
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C)
\[[{{L}^{-1/2}}{{C}^{-1/2}}]\]
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D)
\[[RCL]\]
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question_answer 41) A 10 \[\mu \]\[\mu F\]capacitor is connected across a 200 V, 50 Hz AC. Supply. The peak current through the circuit is :
A)
\[0.6\sqrt{2}\text{A}\]
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B)
\[0.6\text{A}\]
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C)
\[\frac{0.6\pi }{2A}\]
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D)
\[\frac{0.6}{\sqrt{2}}\text{A}\]
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question_answer 42) What is the energy stored in a 50 mH inductor carrying a current of 4A?
A)
0.2 J
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B)
0.4 J
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C)
0.05J
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D)
0.1J
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question_answer 43) In an ammeter, 4% of the main current is passing through galvanometer. If the galvanometer is shunted with a 5\[\Omega \] resistance. The resistance of the galvanometer is :
A)
120\[\Omega \]
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B)
20\[\Omega \]
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C)
5 \[\Omega \]
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D)
4 \[\Omega \]
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question_answer 44) If 100 kWh of energy is consumed at 33V in a copper voltameter. What is the mass of copper liberated? Electrochemical equivalent of copper is \[=\text{ }0.33\times {{10}^{-6}}kg/C.\]
A)
1 mg
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B)
3.6 kg
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C)
3.3 kg
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D)
1kg
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question_answer 45) Four equal resistances when connected in series dissipates 5 watt power. If they are connected in parallel, the power dissipated will be :
A)
80 W
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B)
60 W
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C)
40 W
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D)
20 W
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question_answer 46) What is the magnitude of the point charge due to which the electric field 30 cm away has the magnitude of 2N/C\[\left( \frac{1}{4{{\pi }_{\varepsilon 0}}}=9\times {{10}^{9}}N{{m}^{2}}/{{C}^{2}} \right):\]
A)
\[4\times {{10}^{-11}}C\]
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B)
\[2\times {{10}^{-11}}C\]
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C)
\[5.4\times {{10}^{-11}}C\]
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D)
\[7.5\times {{10}^{-11}}C\]
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question_answer 47) A parallel plate capacitor is immersed in an oil of dielectric constant 2. The. Field between the plates is :
A)
decreased, proportional to \[\frac{L}{\sqrt{2}}\]
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B)
increased, proportional to \[\sqrt{2}\]
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C)
decreased, proportional to \[\frac{1}{2}\]
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D)
increased, proportional to 2
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question_answer 48) When the number of turns in a coil is doubled without any change in the length of the coil. Its self-inductance becomes :
A)
four times
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B)
doubled
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C)
halved
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D)
squared
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question_answer 49) If the potential energy of two molecules is A B given by \[U=\frac{A}{_{r}6}-\frac{B}{_{r}12,}\] then at equilibrium position, its potential energy is equal to :
A)
\[\frac{{{A}^{2}}}{4B}\]
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B)
\[\frac{{{B}^{2}}}{4A}\]
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C)
\[\frac{2B}{A}\]
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D)
\[\frac{-B}{4A}\]
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question_answer 50) The ratio of potential energy of earths satellite to K.E. of satellite is :
A)
1 : 2
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B)
2 : 1
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C)
1 : 1
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D)
4 : 1
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question_answer 51) Which of the following statements, about zero order reaction is not true?
A)
Its rate constant unit is \[se{{c}^{-1}}\]
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B)
The graph between time and rate of reaction is a straight line
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C)
Rate of reaction is independant of concentration of reactants
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D)
None of the above.
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question_answer 52) The amount of \[{{H}_{2}}S\], required to precipitate\[1.69g\]. BaS from \[BaC{{l}_{2}}\] solution is:
A)
\[3.4g\]
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B)
\[0.34g\]
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C)
\[0.34g\]
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D)
\[0.17g\]
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question_answer 53) Which of the following is not a protein?
A)
Tastosterone
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B)
Lipase
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C)
Keratin
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D)
Haemoglobin
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question_answer 54) The reaction, \[C{{H}_{3}}COC{{H}_{3}}\xrightarrow[(ii)\,KOH,\,glycol]{(i)\,N{{H}_{2}}N{{H}_{2}}}C{{H}_{3}}C{{H}_{2}}C{{H}_{3}}\]is known as:
A)
Clemmensons reduction
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B)
Blancs reduction
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C)
Birch reduction
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D)
Wolf Kishner reduction
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question_answer 55) pH-scale was proposed by:
A)
Arrhenius
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B)
Sorenson
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C)
Piere de Coubertin
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D)
none of these
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question_answer 56) Thomas slag is:
A)
\[C{{a}_{3}}{{(P{{O}_{4}})}_{2}}.2{{H}_{2}}O\]
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B)
\[C{{a}_{3}}{{(P{{O}_{4}})}_{2}}.CaSi{{O}_{3}}\]
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C)
\[MgSi{{O}_{3}}\]
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D)
\[CaSi{{O}_{3}}\]
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question_answer 57) Mohrs salt is:
A)
\[N{{a}_{2}}S{{O}_{4}}.A{{l}_{2}}(S{{O}_{4}}).24{{H}_{2}}O\]
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B)
\[CuS{{O}_{4}}.A{{l}_{2}}{{(S{{O}_{4}})}_{3}}.24{{H}_{2}}O\]
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C)
\[FeS{{O}_{4}}.{{(N{{H}_{4}})}_{2}}S{{O}_{4}}.6{{H}_{2}}O\]
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D)
\[{{K}_{2}}S{{O}_{4}}.F{{e}_{2}}{{(S{{O}_{4}})}_{3}}.24{{H}_{2}}O\]
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question_answer 58) Which of the following has maximum ionisation energy?
A)
Caesium
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B)
Fluorine
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C)
Xenon
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D)
Nitrogen
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question_answer 59) Which of the following give ammonia, on heating with \[NaOH\]?
A)
Ethyl amine
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B)
Ethane nitrile
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C)
Nitro ethane
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D)
Ethanamide
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question_answer 60) Which of the following is poisonous?
A)
Methanol
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B)
Ethanol
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C)
Glycerol
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D)
Castor oil
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question_answer 61) Which of the following fraction of coal tar distillation is obtained at\[{{270}^{o}}-{{360}^{o}}C\]?
A)
Light oil
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B)
Middle oil
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C)
Green oil
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D)
Heavy oil
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question_answer 62) The amount of oxalic acid, required to prepare \[300ml\text{ }2.5M\]solution, is:
A)
\[67.5g\]
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B)
\[9.45g\]
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C)
\[6.75g\]
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D)
\[94.5g\]
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question_answer 63) The carbon di-oxide gas does not follow gaseous laws at all ranges of pressure and temperature because:
A)
it is triatomic gas
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B)
its internal energy is quite high
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C)
there is attraction between its molecules
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D)
it solidify at low temperature
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question_answer 64) The bond-angle in \[As{{H}_{3}}\] is greater than that in:
A)
\[N{{H}_{3}}\]
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B)
\[{{H}_{2}}O\]
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C)
\[BC{{l}_{3}}\]
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D)
none of these
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question_answer 65) Which of the following gas, diffuse most slowly?
A)
\[{{C}_{2}}{{H}_{6}}\]
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B)
\[{{C}_{2}}{{H}_{4}}\]
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C)
\[C{{H}_{4}}\]
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D)
All of these diffuse at equal rate
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question_answer 66) Oxidation number of fluorine is \[+1\] in:
A)
\[{{F}_{2}}O\]
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B)
\[N{{F}_{3}}\]
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C)
both (a) and (b)
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D)
none of these
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question_answer 67) Which radioisotope is used in the treatment of leukeamia?
A)
\[P-32\]
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B)
\[Na-24\]
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C)
\[1-128\]
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D)
\[Co-59\]
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question_answer 68) A metal having higher value of \[{{E}^{o}}\], can:
A)
replace hydrogen from dilute \[{{H}_{2}}S{{O}_{4}}\]
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B)
replace hydrogen from concentrate \[{{H}_{2}}S{{O}_{4}}\]
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C)
act as oxidising agent
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D)
all of these
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question_answer 69) The method, which is used to purify colloidal solution is:
A)
electrophoresis
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B)
dialysis
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C)
chromatography
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D)
peptisation
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question_answer 70) Four gases ethane, ethene, ethyne and propene are passed into a wolf bottle containing ammonical \[AgN{{O}_{3}}\] solution. Which gas will come out of wolf bottle?
A)
Only ethyne
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B)
Ethane and ethyne
done
clear
C)
Ethane and ethane
done
clear
D)
Ethane, ethene and propene
done
clear
View Answer play_arrow
question_answer 71) How many conformers are known of ethane?
A)
Two
done
clear
B)
Three
done
clear
C)
\[>3\]
done
clear
D)
Ethane cannot show conformation
done
clear
View Answer play_arrow
question_answer 72) Interfering radicals interfere in the usual test of:
A)
acid radicals
done
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B)
basic radicals
done
clear
C)
both (a) and (b)
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 73) Flux in the smelting process is added to:
A)
decrease the solubility of impurities
done
clear
B)
increase the fusion temperature of roasted ore
done
clear
C)
convert impurities into slag
done
clear
D)
all of these
done
clear
View Answer play_arrow
question_answer 74) The heat of formation of \[MgO\], \[A{{l}_{2}}{{O}_{3}}\] and\[Si{{O}_{2}}\] are \[-692,\] \[-1676,\] \[-911,\] \[kJ\,\,mo{{l}^{-1}}\]. Most stable oxide is:
A)
\[MgO\]
done
clear
B)
\[A{{l}_{2}}{{O}_{3}}\]
done
clear
C)
\[Si{{O}_{2}}\]
done
clear
D)
cannot be predicted
done
clear
View Answer play_arrow
question_answer 75) Which of the following reaction/will be favoured by low pressure?
A)
\[PC{{l}_{5}}PC{{l}_{3}}+C{{l}_{2}}\]
done
clear
B)
\[{{N}_{2}}+3{{H}_{2}}2N{{H}_{3}}\]
done
clear
C)
\[{{H}_{2}}+\frac{1}{2}{{O}_{2}}{{H}_{2}}O\]
done
clear
D)
\[2NO+{{O}_{2}}2N{{O}_{2}}\]
done
clear
View Answer play_arrow
question_answer 76) In III group of basic radical analysis, \[N{{H}_{4}}Cl\]is added before group reagent\[N{{H}_{4}}OH\]. This is done to:
A)
increase the solubility product of III group salts
done
clear
B)
decrease the solubility product of III group salts
done
clear
C)
increase the ionic product of \[O{{H}^{-}}\]and III group radicals
done
clear
D)
decrease the degree of ionisation of group reagent
done
clear
View Answer play_arrow
question_answer 77) Representative elements are:
A)
s-block elements
done
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B)
p-block elements
done
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C)
both (a) and (b)
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 78) Which of the following equation is used in Paulings scale of electronegativity?
A)
\[{{x}_{A}}=0.187(IE+EA)+0.17\]
done
clear
B)
\[{{x}_{A}}-{{x}_{B}}=0.182[{{E}_{A-B}}-{{\sqrt{({{E}_{A-A}}\times {{E}_{B-B}})]}}^{1/2}}\]
done
clear
C)
\[{{x}_{A}}=\frac{0.359{{Z}_{eff}}}{r_{A}^{2}}+0.744\]
done
clear
D)
None of these
done
clear
View Answer play_arrow
question_answer 79) Which hybridisation has sulphur in \[S{{O}_{2}}\]?
A)
\[s{{p}^{2}}\]
done
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B)
\[s{{p}^{3}}{{d}^{2}}\]
done
clear
C)
\[s{{p}^{3}}\]
done
clear
D)
\[sp\]
done
clear
View Answer play_arrow
question_answer 80) The energy of last electron of \[Li\] will be:
A)
\[-30.6eV\]
done
clear
B)
\[-13.6eV\]
done
clear
C)
\[-24.6eV\]
done
clear
D)
\[-28.6eV\]
done
clear
View Answer play_arrow
question_answer 81) Benzaldehyde, in presence of dil. \[NaOH\], changes into benzyl alcohol and sodium benzoate. This reaction is an example of:
A)
rearrangement
done
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B)
oxidation
done
clear
C)
disproportionation
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 82) Which of the following is the strongest acid?
A)
o-nitro benzoic acid.
done
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B)
m-nitro benzoic acid
done
clear
C)
m-chloro benzoic acid
done
clear
D)
m-cyano benzoic acid
done
clear
View Answer play_arrow
question_answer 83) What is the product X in the reaction,\[C{{H}_{3}}COCl\xrightarrow{C{{H}_{3}}COONa}X\]
A)
\[C{{H}_{3}}COOH\]
done
clear
B)
\[{{(C{{H}_{3}}CO)}_{2}}O\]
done
clear
C)
\[C{{H}_{3}}COC{{H}_{2}}COO{{C}_{2}}{{H}_{5}}\]
done
clear
D)
\[C{{H}_{3}}COC{{H}_{2}}COOH\]
done
clear
View Answer play_arrow
question_answer 84) A \[0.5g/l\]solution of glucose is found to be isotonic with a \[2.5\text{ }g/l\] solution of an organic compound. What will be the molecular weight of that organic compound?
A)
\[300\]
done
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B)
\[600\]
done
clear
C)
\[900\]
done
clear
D)
\[1200\]
done
clear
View Answer play_arrow
question_answer 85) Which of the following ion does not follow EAN rule?
A)
\[{{[Fe{{(CN)}_{6}}]}^{4-}}\]
done
clear
B)
\[{{[Ag{{(CN)}_{2}}]}^{-}}\]
done
clear
C)
\[{{[PtC{{l}_{6}}]}^{2-}}\]
done
clear
D)
None of these
done
clear
View Answer play_arrow
question_answer 86) Potassium, on burning in oxygen atmosphere, gives:
A)
\[{{K}_{2}}O\]
done
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B)
\[{{K}_{2}}{{O}_{3}}\]
done
clear
C)
\[K{{O}_{2}}\]
done
clear
D)
\[{{K}_{2}}{{O}_{2}}\]
done
clear
View Answer play_arrow
question_answer 87) Which method is employed to prepare copper sol?
A)
Peptisation
done
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B)
Bredigs arc method
done
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C)
Double decomposition
done
clear
D)
Reduction of CuCb
done
clear
View Answer play_arrow
question_answer 88) How much copper will be deposited at cathode, on passing 4 coulomb charge in 15 minutes?
A)
\[0.0195g\]
done
clear
B)
\[0.0013g\]
done
clear
C)
\[0.020g\]
done
clear
D)
\[0.0020g\]
done
clear
View Answer play_arrow
question_answer 89) If 50% of a radioactive substance dissociates in 15 minutes, then the time .taken by substance to dissociate 99% will be:
A)
50 minutes
done
clear
B)
100 minutes
done
clear
C)
99 minutes
done
clear
D)
150 minutes
done
clear
View Answer play_arrow
question_answer 90) Which of the following alcohol give positive iodoform test?
A)
Methanol
done
clear
B)
Ethyl carbinol
done
clear
C)
Pentanol-3
done
clear
D)
Methyl carbinol
done
clear
View Answer play_arrow
question_answer 91) Human body is an example of :
A)
open system
done
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B)
closed system
done
clear
C)
isolated system
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 92) The atomic size of cerium and promethium is quite close, due to:
A)
they are in same period in periodic table
done
clear
B)
their electronic configuration is same
done
clear
C)
f-electrons have poor shielding effect
done
clear
D)
nuclear charge is higher on cerium than promethium
done
clear
View Answer play_arrow
question_answer 93) Brown glass and cement have, which element common in them?
A)
\[Fe\]
done
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B)
\[Al\]
done
clear
C)
\[Na\]
done
clear
D)
All of these
done
clear
View Answer play_arrow
question_answer 94) The most common isomerism, found in ethers, is:
A)
chain isomerism
done
clear
B)
tautomerism
done
clear
C)
metamerism
done
clear
D)
optical isomerism
done
clear
View Answer play_arrow
question_answer 95) t-butyl chloride preferrably undergo hydrolysis by:
A)
\[S{{N}^{1}}\] mechanism
done
clear
B)
SN mechanism
done
clear
C)
any of (a) and (b)
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 96) Which of the following has lowest boiling point?
A)
\[NaCl\]
done
clear
B)
\[CuCl\]
done
clear
C)
\[CuC{{l}_{2}}\]
done
clear
D)
\[CsCl\]
done
clear
View Answer play_arrow
question_answer 97) Which of the following is true for the reaction\[CO+\frac{1}{2}{{O}_{2}}C{{O}_{2}}\]
A)
\[{{K}_{p}}>{{K}_{c}}\]
done
clear
B)
\[{{K}_{p}}<{{K}_{c}}\]
done
clear
C)
\[{{K}_{p}}={{K}_{c}}\]
done
clear
D)
\[{{K}_{p}}\ge {{K}_{c}}\]
done
clear
View Answer play_arrow
question_answer 98) Which of the following is not a buffer solution?
A)
\[C{{H}_{3}}COOH+C{{H}_{3}}COONa\]
done
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B)
\[{{H}_{3}}B{{O}_{3}}+N{{a}_{3}}B{{O}_{3}}\]
done
clear
C)
\[HCl{{O}_{4}}+NaCl{{O}_{4}}\]
done
clear
D)
\[N{{H}_{4}}OH+(N{{H}_{4}})S{{O}_{4}}\]
done
clear
View Answer play_arrow
question_answer 99) Which of the following ore is concentrated by both, magnetic and gravimetric separation?
A)
Dolomite
done
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B)
Tin stone
done
clear
C)
Galena
done
clear
D)
Bauxite
done
clear
View Answer play_arrow
question_answer 100) Which of the following is not a polymer?
A)
RNA
done
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B)
Oxytocin
done
clear
C)
Cholesterol
done
clear
D)
Amylose
done
clear
View Answer play_arrow
question_answer 101) Which one is correctly matched?
A)
Oncogenes-ageing
done
clear
B)
Replication fork-rn-RNA
done
clear
C)
AIDS virus-reverse franscriptase
done
clear
D)
Initiation factors-amino acid activation
done
clear
View Answer play_arrow
question_answer 102) Which of the following is not an organ of central nervous system?
A)
Brain
done
clear
B)
Cranial nerves
done
clear
C)
Spinal cord
done
clear
D)
None of these
done
clear
View Answer play_arrow
question_answer 103) The first codon discovered by Nirenberg and Mathai was :
A)
CCC
done
clear
B)
GGG
done
clear
C)
UUU
done
clear
D)
AAA
done
clear
View Answer play_arrow
question_answer 104) Maximum amount of energy ATP is liberated on oxidation of :
A)
fats
done
clear
B)
proteins
done
clear
C)
starch
done
clear
D)
vitamins
done
clear
View Answer play_arrow
question_answer 105) The thermoregulatory centre in the body is :
A)
spinal cord
done
clear
B)
hypothalamus
done
clear
C)
cerebellum
done
clear
D)
pituitary
done
clear
View Answer play_arrow
question_answer 106) Which is not cancer?
A)
Leukemia
done
clear
B)
Trachoma
done
clear
C)
Carcinoma
done
clear
D)
Sarcoma
done
clear
View Answer play_arrow
question_answer 107) Bio gas production from waste bio mass with the help of methanogenic bacteria is :
A)
multi step process
done
clear
B)
one step process
done
clear
C)
two step process
done
clear
D)
three step process
done
clear
View Answer play_arrow
question_answer 108) Pace-maker in heart is situated :
A)
in the wall of left atrium
done
clear
B)
in the wall of right atrium
done
clear
C)
on inter-ventricular septum
done
clear
D)
on inter-auricular septum
done
clear
View Answer play_arrow
question_answer 109) Genetic code is said to be degenerate because :
A)
one amino acid is coded by more than one codon
done
clear
B)
codons degenerate very quickly
done
clear
C)
one codon codes for more than one amino acid
done
clear
D)
none of the above
done
clear
View Answer play_arrow
question_answer 110) Spinal cord is protected by :
A)
trachea
done
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B)
aorta
done
clear
C)
sternum
done
clear
D)
vertebral column
done
clear
View Answer play_arrow
question_answer 111) Which of the following is free-living, aerobic and non-photosynthetic nitrogen fixing bacterium?
A)
Azospirillum
done
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B)
Nostoc
done
clear
C)
Azotobacter
done
clear
D)
Rhizobium
done
clear
View Answer play_arrow
question_answer 112) Stramonium is a drug obtained from the plant species of :
A)
Datura
done
clear
B)
Ocimum
done
clear
C)
Rauwolffia
done
clear
D)
Asphodelus
done
clear
View Answer play_arrow
question_answer 113) In the animal body bold bank is :
A)
heart
done
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B)
spleen
done
clear
C)
lungs
done
clear
D)
liver
done
clear
View Answer play_arrow
question_answer 114) Addisons disease results from :
A)
hypertrophy of gonads
done
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B)
hypo-secretion of adrenal cortex
done
clear
C)
hyperactivity of cells of Leydig
done
clear
D)
none of the above
done
clear
View Answer play_arrow
question_answer 115) What is true for photosynthesis?
A)
Carbon dioxide is oxidised and water is reduced
done
clear
B)
Carbon dioxide is reduced and water is oxidized
done
clear
C)
Both carbon dioxide and water are reduced
done
clear
D)
Both carbon dioxide and water are oxidized
done
clear
View Answer play_arrow
question_answer 116) Drinking of alcohol affects :
A)
cerebrum
done
clear
B)
cerebellum
done
clear
C)
medulla oblongata
done
clear
D)
diencephalon
done
clear
View Answer play_arrow
question_answer 117) Disease aggravated by pollution is :
A)
haemophilia
done
clear
B)
rheumatism
done
clear
C)
scurvy
done
clear
D)
bronchitis
done
clear
View Answer play_arrow
question_answer 118) L.S.D. is obtained from :
A)
Claviceps purpurea
done
clear
B)
Rauwolffia serpentine
done
clear
C)
Papaver somniferum
done
clear
D)
Cannabis sativa
done
clear
View Answer play_arrow
question_answer 119) Australopithecus existed in :
A)
Pliocene
done
clear
B)
Miocene
done
clear
C)
Pleistocene
done
clear
D)
both a and b
done
clear
View Answer play_arrow
question_answer 120) The two pigment system theory of photosynthesis was proposed by :
A)
Blackman
done
clear
B)
Hill
done
clear
C)
Emerson
done
clear
D)
Arnon
done
clear
View Answer play_arrow
question_answer 121) Homo habilis originated in :
A)
Oligocene
done
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B)
Miocene
done
clear
C)
Pleistocene
done
clear
D)
Holocene
done
clear
View Answer play_arrow
question_answer 122) Who proved that oxygen evolved in photosynthesis comes from water?
A)
Calvin
done
clear
B)
Mayer
done
clear
C)
Blackman
done
clear
D)
Ruben, Hassid and Kamen
done
clear
View Answer play_arrow
question_answer 123) Sulphur dioxide affects :
A)
plasmodesmata
done
clear
B)
cell wall
done
clear
C)
all membrane systems
done
clear
D)
nucleus
done
clear
View Answer play_arrow
question_answer 124) The process in which water is split during photosynthesis is :
A)
plasmolysis
done
clear
B)
photolysis
done
clear
C)
hydrolysis
done
clear
D)
haemolysis
done
clear
View Answer play_arrow
question_answer 125) Jaundice is a disease of :
A)
pancreas
done
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B)
kidney
done
clear
C)
liver
done
clear
D)
duodenum
done
clear
View Answer play_arrow
question_answer 126) Morphine is obtained from :
A)
Rauwolffia serpentine
done
clear
B)
Papauer somniferum
done
clear
C)
Cannabis satiua
done
clear
D)
Cajanus cajan
done
clear
View Answer play_arrow
question_answer 127) Heroin is obtained from plant of family :
A)
Papaveraceae
done
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B)
Leguminosae
done
clear
C)
Cruciferae
done
clear
D)
Liliaceae
done
clear
View Answer play_arrow
question_answer 128) Leprosy is due to :
A)
TMV
done
clear
B)
Monocystis
done
clear
C)
Salmonella
done
clear
D)
Mycobacterium
done
clear
View Answer play_arrow
question_answer 129) Opium (poppy) is a plant belonging to the family:
A)
Apocynaceae
done
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B)
Papaveraceae
done
clear
C)
Solanaceae
done
clear
D)
Liliaceae
done
clear
View Answer play_arrow
question_answer 130) Cocaine alkaloid is obtained from :
A)
Erythroxylon coca
done
clear
B)
Then chinensis
done
clear
C)
Coffea arabica
done
clear
D)
Theobroma cocao
done
clear
View Answer play_arrow
question_answer 131) HIV has a protein coat and a genetic material which is :
A)
ss-RNA
done
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B)
ds-RNA
done
clear
C)
ds-DNA
done
clear
D)
ss-DNA
done
clear
View Answer play_arrow
question_answer 132) End product of glycolysis is :
A)
pyruvic acid
done
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B)
acetyl Co-A
done
clear
C)
glucose 1-phosphate
done
clear
D)
fructose 1-phosphate
done
clear
View Answer play_arrow
question_answer 133) Which pair of disease is viral?
A)
AIDS, Rabies
done
clear
B)
Typhoid, Tetanus
done
clear
C)
Rabies, Syphilis
done
clear
D)
Cholera, T.B.
done
clear
View Answer play_arrow
question_answer 134) More \[C{{O}_{2}}\] is evolved than the volume of oxygen consumed when the respiratory substrate is :
A)
fat
done
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B)
sucrose
done
clear
C)
glucose
done
clear
D)
organic acid
done
clear
View Answer play_arrow
question_answer 135) Which one of the following is bio-fuel?
A)
Wood
done
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B)
Petroleum
done
clear
C)
Natural gas
done
clear
D)
Coal
done
clear
View Answer play_arrow
question_answer 136) Immunoglobin found in serum is :
A)
IgM
done
clear
B)
IgA
done
clear
C)
IgN
done
clear
D)
IgG
done
clear
View Answer play_arrow
question_answer 137) Cancerous cells spread through :
A)
lymph
done
clear
B)
blood
done
clear
C)
secondary growths of malignant tumour
done
clear
D)
all of the above
done
clear
View Answer play_arrow
question_answer 138) Coffeine, cocaine and amphetamine are :
A)
hallucinogens
done
clear
B)
sedative
done
clear
C)
transquilliser
done
clear
D)
stimulant
done
clear
View Answer play_arrow
question_answer 139) During the process of blood coagulation vitamin K helps in the :
A)
formation of thromboplastin
done
clear
B)
formation of prothrombin
done
clear
C)
conversion of prothrombin to thrombin
done
clear
D)
conversion of fibrinogen to fibrin
done
clear
View Answer play_arrow
question_answer 140) In a healthy adult man the normal diastolic pressure is :
A)
90 mm Hg
done
clear
B)
120 mm Hg
done
clear
C)
80 mm Hg
done
clear
D)
100 mm Hg
done
clear
View Answer play_arrow
question_answer 141) Carotid artery supplies :
A)
de-oxygenated blood to liver
done
clear
B)
de-oxygenated blood to kidneys
done
clear
C)
oxygenated blood to brain
done
clear
D)
oxygenated blood to limbs
done
clear
View Answer play_arrow
question_answer 142) Blood group A has :
A)
antibody a on RBC
done
clear
B)
antibody a in plasma
done
clear
C)
antigen A on RBC
done
clear
D)
antigen A in plasma
done
clear
View Answer play_arrow
question_answer 143) Krebs cycle begins with the reaction :
A)
citric acid + acetyl Co-A
done
clear
B)
oxalacetic acid + pyruvic acid
done
clear
C)
oxalacetic acid + citric acid
done
clear
D)
oxalacetic + acetyl Co-A
done
clear
View Answer play_arrow
question_answer 144) Mendel conducted hybridization experiments on:
A)
garden pea
done
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B)
pigeon pea
done
clear
C)
wild pea
done
clear
D)
sweet pea
done
clear
View Answer play_arrow
question_answer 145) Olfactory lobes of man are :
A)
fused and hollow
done
clear
B)
fused and solid
done
clear
C)
free and hollow
done
clear
D)
solid
done
clear
View Answer play_arrow
question_answer 146) Carrier organisms refers to an individual which carries a :
A)
dominant gene that is not expressed
done
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B)
recessive gene that is not expressed
done
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C)
recessive gene that is expressed
done
clear
D)
dominant gene that is expressed
done
clear
View Answer play_arrow
question_answer 147) Electron transport system of mitochondria is located in :
A)
inner membrane
done
clear
B)
outer membrane
done
clear
C)
outer chamber
done
clear
D)
inter cristal space
done
clear
View Answer play_arrow
question_answer 148) Principles and rules of classification are studied under :
A)
natural classification
done
clear
B)
systematics
done
clear
C)
nomenclature
done
clear
D)
taxonomy
done
clear
View Answer play_arrow
question_answer 149) Contraction of gall bladder is carried by :
A)
rennin
done
clear
B)
gastrin
done
clear
C)
cholecystokinin
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 150) Foetal sex is determined by examining cells from amniotic fluid looking for :
A)
chiasmata
done
clear
B)
Barr bodies
done
clear
C)
sex-chromosomes
done
clear
D)
drum sticks
done
clear
View Answer play_arrow
question_answer 151) Baldness is more common in men than in woman. It could be explained on the basis that :
A)
genes of baldness are located on X-chromosomes only
done
clear
B)
baldness genes are located on Y-chromosomes
done
clear
C)
genes of baldness are autosomal but influenced by androgens
done
clear
D)
genes of baldness are located on X-chromosomes only
done
clear
View Answer play_arrow
question_answer 152) Theory of inheritance of acquired characters was given by :
A)
Darwin
done
clear
B)
Wallace
done
clear
C)
Lamarck
done
clear
D)
de Vries
done
clear
View Answer play_arrow
question_answer 153) Removal of anthers of some flowers during plant breeding is :
A)
emasculation
done
clear
B)
anthesis
done
clear
C)
pollination
done
clear
D)
for collection of pollen
done
clear
View Answer play_arrow
question_answer 154) Polar nuclei are located in :
A)
embryosac
done
clear
B)
thalamus
done
clear
C)
pollen tube
done
clear
D)
ovule
done
clear
View Answer play_arrow
question_answer 155) Transgenic crops are modified through genetic engineering to develop natural resistance to insect pests. Which one is a transgenic plant ?
A)
Tobacco and cotton
done
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B)
Tomato and rice
done
clear
C)
Maize and sugarcane
done
clear
D)
Tomato and wheat
done
clear
View Answer play_arrow
question_answer 156) Neo-Darwinism believes that new species develop through :
A)
mutations
done
clear
B)
hybridization
done
clear
C)
mutations with natural selection
done
clear
D)
continuous variations with natural selection
done
clear
View Answer play_arrow
question_answer 157) Pomato is :
A)
natural mutant
done
clear
B)
somatic hybrid
done
clear
C)
androgenic hybrid
done
clear
D)
somaclonal variant
done
clear
View Answer play_arrow
question_answer 158) Most hazardous metal pollutant of automobile exhaust is :
A)
cadmium
done
clear
B)
lead
done
clear
C)
mercury
done
clear
D)
copper
done
clear
View Answer play_arrow
question_answer 159) A major use of embryo culture is in :
A)
production of alkaloids
done
clear
B)
clonal propagation
done
clear
C)
induction of somaclonal variations
done
clear
D)
over coming hybridization barriers
done
clear
View Answer play_arrow
question_answer 160) Respiratory quotient (R.Q.) the ratio of :
A)
\[C{{O}_{2}}\]produced to \[{{O}_{2}}\]consumed
done
clear
B)
\[C{{O}_{2}}\]produced to substrate consumed
done
clear
C)
Oxygen consumed to water produced
done
clear
D)
Oxygen consumed to \[C{{O}_{2}}\]produced
done
clear
View Answer play_arrow
question_answer 161) VAM is useful for :
A)
phosphate nutrition
done
clear
B)
breaking of dormancy
done
clear
C)
decrease in diseases
done
clear
D)
retarding flowering
done
clear
View Answer play_arrow
question_answer 162) Parathyroid hormone is a :
A)
peptide
done
clear
B)
carbohydrate
done
clear
C)
lipid
done
clear
D)
steroid
done
clear
View Answer play_arrow
question_answer 163) The first living beings were :
A)
chemo-heterotrophs
done
clear
B)
chemo-autotrophs
done
clear
C)
oxygenic photoautotrophs
done
clear
D)
anoxygenic photoautotrophs
done
clear
View Answer play_arrow
question_answer 164) A clone is :
A)
heterozygote obtained asexually
done
clear
B)
homozygote obtained asexually
done
clear
C)
heterozygote produced by sexual methods
done
clear
D)
homozygoteproduced by sexual reproduction
done
clear
View Answer play_arrow
question_answer 165) A petroleum plant is :
A)
Euphorbia lathyrus
done
clear
B)
Acacia Arabica
done
clear
C)
Finns roxburghii
done
clear
D)
Prosopis cineraria
done
clear
View Answer play_arrow
question_answer 166) Hormone is :
A)
enzyme
done
clear
B)
chemical messenger
done
clear
C)
excretory product
done
clear
D)
glandular secretion
done
clear
View Answer play_arrow
question_answer 167) Azolla is used as bio-fertilizer as it has :
A)
mycorrhiza
done
clear
B)
cyanobacteria
done
clear
C)
Rhizobium
done
clear
D)
large quantity of humus
done
clear
View Answer play_arrow
question_answer 168) Father of Indian Green Revolution is :
A)
M.S. Swaminathan
done
clear
B)
K.C. Mehta
done
clear
C)
B.P. Pal
done
clear
D)
Norman Borlaug
done
clear
View Answer play_arrow
question_answer 169) Progesterone hormone is secreted by :
A)
corpus albicans
done
clear
B)
corpus collosum
done
clear
C)
corpus luteum in ovaries
done
clear
D)
corpus uteri
done
clear
View Answer play_arrow
question_answer 170) Triploid endosperm occurs only in :
A)
Angiosperms
done
clear
B)
Gymnosperms
done
clear
C)
Pteridophytes
done
clear
D)
Spermatophytes
done
clear
View Answer play_arrow
question_answer 171) Continuity of germplasm theory was given by:
A)
de Vries
done
clear
B)
Weismann
done
clear
C)
Lamarck
done
clear
D)
Darwin
done
clear
View Answer play_arrow
question_answer 172) Hormone responsible for the control of the development of secondary sexual characters in female is :
A)
androgen
done
clear
B)
oestrogen
done
clear
C)
progesterone
done
clear
D)
oxytocm
done
clear
View Answer play_arrow
question_answer 173) The law of segregation of characters is also called the law of purity of gametes because:
A)
gametes have only one of the two alleles for each characters
done
clear
B)
gametes cannot be contaminated
done
clear
C)
gametes are very different type of cells
done
clear
D)
it was just another name adopted accidentally
done
clear
View Answer play_arrow
question_answer 174) Cinchona officinalis belongs to family :
A)
Cruciferae
done
clear
B)
Malvaceae
done
clear
C)
Rubiaceae
done
clear
D)
Leguminosae
done
clear
View Answer play_arrow
question_answer 175) Which is the largest body cell?
A)
Neurons
done
clear
B)
RBCs
done
clear
C)
Osteocytes
done
clear
D)
Sperms
done
clear
View Answer play_arrow
question_answer 176) Meiosis in AaBb will produce gametes :
A)
AB, aB, Ab, ab
done
clear
B)
AB, ab
done
clear
C)
Aa, bb
done
clear
D)
Aa, Bb
done
clear
View Answer play_arrow
question_answer 177) Degeneracy of genetic code was discovered by:
A)
Ochoa
done
clear
B)
Khorana
done
clear
C)
McClintock
done
clear
D)
Bern field and Nirenberg
done
clear
View Answer play_arrow
question_answer 178) Corpus luteum is a part of :
A)
mammalian lung
done
clear
B)
mammalian ovary
done
clear
C)
mid brain
done
clear
D)
hind brain
done
clear
View Answer play_arrow
question_answer 179) Initiation of polypeptide chain is through :
A)
methionine
done
clear
B)
glycine
done
clear
C)
lysine
done
clear
D)
leucine
done
clear
View Answer play_arrow
question_answer 180) Adrenal gland is associated with :
A)
kidney
done
clear
B)
pharynx
done
clear
C)
brain
done
clear
D)
pancreas
done
clear
View Answer play_arrow
question_answer 181) In vitro synthesis of RNA and DNA was carried out first by :
A)
Ochoa and Nirenherg
done
clear
B)
Ochoa and Kornberg
done
clear
C)
Nirenberg and Khorana
done
clear
D)
Kornberg and Nirenberg
done
clear
View Answer play_arrow
question_answer 182) Secretin stimulates :
A)
pancreas
done
clear
B)
gall bladder
done
clear
C)
lungs
done
clear
D)
gastric gland
done
clear
View Answer play_arrow
question_answer 183) In Barr-body (sex-chromatin)of a normal female:
A)
one of the X-chromosome of paternal side becomes inactive to form Barr-body
done
clear
B)
Y-chromosomes form Barr-body
done
clear
C)
heterochromatin condense near centre of nucleus to form Barr-body
done
clear
D)
one of the X-chromosome of maternal side becomes inactive and form Barr-body near nuclear membrane
done
clear
View Answer play_arrow
question_answer 184) Dominant lethal gene is one which :
A)
allows the organism to survive but not reproduce
done
clear
B)
determines sex of off springs
done
clear
C)
allows the organism to survive and reproduce
done
clear
D)
kills the organism
done
clear
View Answer play_arrow
question_answer 185) Respiratory centre in brain occurs in :
A)
medulla oblongata
done
clear
B)
cerebellum
done
clear
C)
hypothalamus
done
clear
D)
pericardium
done
clear
View Answer play_arrow
question_answer 186) A pseudocereal is :
A)
Fagopyrum esculentum
done
clear
B)
Triticum aestivum
done
clear
C)
Zea mays
done
clear
D)
Oryza saliua
done
clear
View Answer play_arrow
question_answer 187) Taste area lies in the :
A)
frontal lobe
done
clear
B)
occipital lobe
done
clear
C)
parietal lobe
done
clear
D)
temporal lobe
done
clear
View Answer play_arrow
question_answer 188) Capitulum infloresence is found in :
A)
Liliaceae
done
clear
B)
Papilionaceae
done
clear
C)
Compositae
done
clear
D)
Rosaceae
done
clear
View Answer play_arrow
question_answer 189) Mutations are generally induced by means of :
A)
\[\text{ }\!\!\alpha\!\!\text{ -}\]rays
done
clear
B)
\[\text{ }\!\!\beta\!\!\text{ -}\]rays
done
clear
C)
\[\text{ }\!\!\gamma\!\!\text{ -}\]rays
done
clear
D)
UV radiations
done
clear
View Answer play_arrow
question_answer 190) Whorl of small, green structures present around sunflower is :
A)
involucre
done
clear
B)
calyx
done
clear
C)
epicalyx
done
clear
D)
leaves
done
clear
View Answer play_arrow
question_answer 191) Hepatitis is a :
A)
viral disease
done
clear
B)
bacterial disease
done
clear
C)
fungal disease
done
clear
D)
protozoan disease
done
clear
View Answer play_arrow
question_answer 192) Sex-linked characters are transmitted through :
A)
Y-chromosome of male only
done
clear
B)
X-chromosome of female only
done
clear
C)
X-chromosomes of both male and female
done
clear
D)
X-chromosome of male only
done
clear
View Answer play_arrow
question_answer 193) Pollen grains are shed at:
A)
1-celled stage
done
clear
B)
2-3-celled stage
done
clear
C)
4-celled stage
done
clear
D)
5-celled stage
done
clear
View Answer play_arrow
question_answer 194) The first definite proof of mutagenic action of X-rays was given by :
A)
Muller
done
clear
B)
Hooker
done
clear
C)
Lister
done
clear
D)
Leeuwenhoek
done
clear
View Answer play_arrow
question_answer 195) Turners syndrome is caused by :
A)
polyploidy
done
clear
B)
autosomal aneuploidy
done
clear
C)
sex-chromosome aneuploidy
done
clear
D)
trisomy
done
clear
View Answer play_arrow
question_answer 196) Spadix in floresence occurs in :
A)
mulberry
done
clear
B)
banana
done
clear
C)
Dclomx
done
clear
D)
coriander
done
clear
View Answer play_arrow
question_answer 197) Cytoplasmic inheritance always shows :
A)
paternal characters
done
clear
B)
maternal characters
done
clear
C)
parental characters
done
clear
D)
little parental and more maternal characters
done
clear
View Answer play_arrow
question_answer 198) Phrase Survival of the Fittest was used by:
A)
Hugo de Vries
done
clear
B)
Charles Darwin
done
clear
C)
Herbert Spencer
done
clear
D)
Jean Baptiste Lamarck
done
clear
View Answer play_arrow
question_answer 199) Persons having trisomy on 21 chromosome are known to suffer from :
A)
Edwards syndrome
done
clear
B)
Downs syndrome
done
clear
C)
Turners syndrome
done
clear
D)
Pataus syndrome
done
clear
View Answer play_arrow
question_answer 200) Tautonym is:
A)
un-scientific explanation of a phenomenon
done
clear
B)
common name used as scientific name
done
clear
C)
non-latinised name
done
clear
D)
same name for genus and species
done
clear
View Answer play_arrow
question_answer 201) In sex-linkage the speciality is :
A)
atavism
done
clear
B)
reversion
done
clear
C)
gene flow
done
clear
D)
criss cross inheritance
done
clear
View Answer play_arrow
question_answer 202) Entry of pollen tube through micropyle is :
A)
progamy
done
clear
B)
misogamy
done
clear
C)
pseudogamy
done
clear
D)
chalazogamy
done
clear
View Answer play_arrow
question_answer 203) Micropyle helps in :
A)
germination of pollen grain
done
clear
B)
growth of pollen tube
done
clear
C)
coming out- of pollen tube from pollen grain
done
clear
D)
allowing entry of pollen tube
done
clear
View Answer play_arrow
question_answer 204) Cancer cells are damaged by radiations while others are not because cancer cells :
A)
being starved
done
clear
B)
being different in nature
done
clear
C)
undergoing rapid division
done
clear
D)
none of the above
done
clear
View Answer play_arrow
question_answer 205) In mature RBC, nucleus is present in :
A)
frog
done
clear
B)
rabbit
done
clear
C)
both a and b
done
clear
D)
neither in frog nor in rabbit
done
clear
View Answer play_arrow
question_answer 206) Interferons are synthesized in response to :
A)
bacteria
done
clear
B)
viruses
done
clear
C)
fungi
done
clear
D)
mycoplasma
done
clear
View Answer play_arrow
question_answer 207) Complete oxidation of a molecule of glucose yields :
A)
2 ATP molecules
done
clear
B)
8 ATP molecules
done
clear
C)
15 ATP molecules
done
clear
D)
36 ATP molecules
done
clear
View Answer play_arrow
question_answer 208) Congenital diseases are :
A)
deficiency diseases
done
clear
B)
diseases present at birth
done
clear
C)
spread from one individual to another
done
clear
D)
occur during life
done
clear
View Answer play_arrow
question_answer 209) Rh factor was discovered by :
A)
Watson
done
clear
B)
Harvey
done
clear
C)
Landsteiner
done
clear
D)
Landsteiner and Weiner
done
clear
View Answer play_arrow
question_answer 210) Energy cropping is :
A)
production of ethanol
done
clear
B)
production of methane
done
clear
C)
production of sugarcane
done
clear
D)
production gas
done
clear
View Answer play_arrow
question_answer 211) Microbial insecticide is :
A)
Bacillus polymixa
done
clear
B)
Bacillus brevis
done
clear
C)
Bacillus subtilis
done
clear
D)
Bacillus thuringenesis
done
clear
View Answer play_arrow
question_answer 212) \[S{{O}_{2}}\] and \[N{{C}_{2}}\] produce pollution by increasing :
A)
acidity
done
clear
B)
alkalinity
done
clear
C)
neutrality
done
clear
D)
buffer action
done
clear
View Answer play_arrow
question_answer 213) Gas released during Bhopal tragedy was :
A)
sodium isothiocyanate
done
clear
B)
methyl isocyanate
done
clear
C)
potassium isothiocyanate
done
clear
D)
ethyl isothiocyanate
done
clear
View Answer play_arrow
question_answer 214) In bacteria, the site for respiration is :
A)
episome
done
clear
B)
mesosome
done
clear
C)
cytoplasm
done
clear
D)
plasmid
done
clear
View Answer play_arrow
question_answer 215) Nobel prize for one gene one enzyme hypothesis was given to :
A)
Sutton and Boveri
done
clear
B)
Watson and Crick
done
clear
C)
Avery et. al.
done
clear
D)
Beadle and Tatum
done
clear
View Answer play_arrow
question_answer 216) Blood pressure is controlled by :
A)
adrenal
done
clear
B)
thyroid
done
clear
C)
thymus
done
clear
D)
corpus luteum
done
clear
View Answer play_arrow
question_answer 217) Pancreatic secretion is stimulated by :
A)
secretin
done
clear
B)
duocrinin
done
clear
C)
enterogasterone
done
clear
D)
cholecystokin in-pancreozymin
done
clear
View Answer play_arrow
question_answer 218) The branch that deals with the study of trees is :
A)
Pomology
done
clear
B)
Anthology
done
clear
C)
Dendrology
done
clear
D)
Palynology
done
clear
View Answer play_arrow
question_answer 219) Which one of the following branch applicable to both plants and animals?
A)
Herpetology
done
clear
B)
Saurology
done
clear
C)
Taxonomy
done
clear
D)
Ichthyology
done
clear
View Answer play_arrow
question_answer 220) In which of the following endospores are formed ?
A)
Mucor
done
clear
B)
Clostridium
done
clear
C)
Saccharomyces
done
clear
D)
Rhizopus
done
clear
View Answer play_arrow
question_answer 221) In banana, which of the following part is edible?
A)
Epicarp
done
clear
B)
Mesocarp
done
clear
C)
Endocarp
done
clear
D)
Both b and c
done
clear
View Answer play_arrow
question_answer 222) Which of the following drug is used in treatment of ovarian cancer ?
A)
PAS
done
clear
B)
Isonex
done
clear
C)
Taxol
done
clear
D)
Ethambutol
done
clear
View Answer play_arrow
question_answer 223) In pond ecosystem, diatoms represent:
A)
producers
done
clear
B)
primary consumers
done
clear
C)
secondary consumers
done
clear
D)
tertiary consumers
done
clear
View Answer play_arrow
question_answer 224) The number of cotyledons in Cuscuta are :
A)
one
done
clear
B)
two
done
clear
C)
always polycotyl
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 225) The leaves of Smilax and Colocasia is show :
A)
parallel venation
done
clear
B)
reticulate venation
done
clear
C)
forward venation
done
clear
D)
lateral venation
done
clear
View Answer play_arrow
question_answer 226) Aceiabularia is a :
A)
single celled marine green alga
done
clear
B)
multi celled marine green alga
done
clear
C)
single celled fresh water green alga
done
clear
D)
multi celled fresh water green alga
done
clear
View Answer play_arrow
question_answer 227) Sorosis is found in :
A)
jack fruit
done
clear
B)
mulberry
done
clear
C)
fig
done
clear
D)
both a and b
done
clear
View Answer play_arrow
question_answer 228) Cellulose is a polymer of :
A)
\[\text{ }\!\!\beta\!\!\text{ }\]-D-glucose
done
clear
B)
\[\text{ }\!\!\alpha\!\!\text{ }\]D-glucose
done
clear
C)
\[\text{ }\!\!\alpha\!\!\text{ }\]1-glucose
done
clear
D)
\[\text{ }\!\!\beta\!\!\text{ }\]1-glucose
done
clear
View Answer play_arrow
question_answer 229) Colchicine producing plant belongs to family
A)
Liliaceae
done
clear
B)
Rubiaceae
done
clear
C)
Malvaceae
done
clear
D)
Solanaceae
done
clear
View Answer play_arrow
question_answer 230) Sertoli cells are involved in :
A)
respiration
done
clear
B)
nutrition of sperms
done
clear
C)
excretion
done
clear
D)
development of sex organs
done
clear
View Answer play_arrow
question_answer 231) The myocardium is found in :
A)
heart of mammals
done
clear
B)
brain of mammals
done
clear
C)
lungs of mammals
done
clear
D)
testes of mammals
done
clear
View Answer play_arrow
question_answer 232) The main function of sweat gland is :
A)
excretion of salts
done
clear
B)
water regulation
done
clear
C)
thermo-regulation
done
clear
D)
excretory in function
done
clear
View Answer play_arrow
question_answer 233) Isinglass is a product obtained from air bladder of :
A)
some snakes
done
clear
B)
some fishes
done
clear
C)
some aves
done
clear
D)
none of the above
done
clear
View Answer play_arrow
question_answer 234) Ribozyme was discovered by :
A)
Kuhne
done
clear
B)
Duclaux
done
clear
C)
Cechetal
done
clear
D)
Altman
done
clear
View Answer play_arrow
question_answer 235) Vocal cords occurs in :
A)
pharynx
done
clear
B)
larynx
done
clear
C)
glottis
done
clear
D)
bronchial
done
clear
View Answer play_arrow
question_answer 236) Crossing over takes place at :
A)
one strand stage
done
clear
B)
two strand stage
done
clear
C)
three strand stage
done
clear
D)
four strand stage
done
clear
View Answer play_arrow
question_answer 237) Plasmid is :
A)
plastid
done
clear
B)
alga
done
clear
C)
fungus
done
clear
D)
extra nuclear DNA of bacterial cell
done
clear
View Answer play_arrow
question_answer 238) Citric acid is produced by :
A)
Candida
done
clear
B)
Streptococcus
done
clear
C)
Aspergillus niger
done
clear
D)
Acetobacter suboxidans
done
clear
View Answer play_arrow
question_answer 239) Dinosaurs were most abundant in :
A)
Devonian
done
clear
B)
Jurassic
done
clear
C)
Permian
done
clear
D)
Pleistocene
done
clear
View Answer play_arrow
question_answer 240) Meristem consists of :
A)
undivided cells
done
clear
B)
cells in continuous state of cells division
done
clear
C)
dead cells
done
clear
D)
cells which divide rarely
done
clear
View Answer play_arrow
question_answer 241) Direction: Each of the question below consist of two statements an Assertion (A) and a Reason (R). Mark of the appropriate response as under: A. All endonucleases cut DNA at specific sites. R. Endonucleases are found in viruses.
A)
If both A and R are correct and the R is a correct explantion of A.
done
clear
B)
If both A and R are correct but R is not a correct explanation of A.
done
clear
C)
A is true but R is false.
done
clear
D)
Both A and R are false.
done
clear
View Answer play_arrow
question_answer 242) Direction: Each of the question below consist of two statements an Assertion (A) and a Reason (R). Mark of the appropriate response as under: A. Humulin is better than conventional insulin. R. Conventional insulin produces many side effects.
A)
If both A and R are correct and the R is a correct explantion of A.
done
clear
B)
If both A and R are correct but R is not a correct explanation of A.
done
clear
C)
A is true but R is false.
done
clear
D)
Both A and R are false.
done
clear
View Answer play_arrow
question_answer 243) Direction: Each of the question below consist of two statements an Assertion (A) and a Reason (R). Mark of the appropriate response as under: A. Antibiotics may be used to promote the growth of live stock. R. Antibiotics promote protein synthesis in animals.
A)
If both A and R are correct and the R is a correct explantion of A.
done
clear
B)
If both A and R are correct but R is not a correct explanation of A.
done
clear
C)
A is true but R is false.
done
clear
D)
Both A and R are false.
done
clear
View Answer play_arrow
question_answer 244) Direction: Each of the question below consist of two statements an Assertion (A) and a Reason (R). Mark of the appropriate response as under: A. Cryopreservation is one of the best methods of germplasm storage. R. In cryopreservation, the cells remain in a state of suspended animation.
A)
If both A and R are correct and the R is a correct explantion of A.
done
clear
B)
If both A and R are correct but R is not a correct explanation of A.
done
clear
C)
A is true but R is false.
done
clear
D)
Both A and R are false.
done
clear
View Answer play_arrow
question_answer 245) Direction: Each of the question below consist of two statements an Assertion (A) and a Reason (R). Mark of the appropriate response as under: A. Plants clones obtained through tissue culture are very susceptible to new diseases. R. Clones are genetically identical.
A)
If both A and R are correct and the R is a correct explantion of A.
done
clear
B)
If both A and R are correct but R is not a correct explanation of A.
done
clear
C)
A is true but R is false.
done
clear
D)
Both A and R are false.
done
clear
View Answer play_arrow
question_answer 246) Direction: Each of the question below consist of two statements an Assertion (A) and a Reason (R). Mark of the appropriate response as under: A. A river differs from a lake. R. Lakes are open heterotropic systems.
A)
If both A and R are correct and the R is a correct explantion of A.
done
clear
B)
If both A and R are correct but R is not a correct explanation of A.
done
clear
C)
A is true but R is false.
done
clear
D)
Both A and R are false.
done
clear
View Answer play_arrow
question_answer 247) Direction: Each of the question below consist of two statements an Assertion (A) and a Reason (R). Mark of the appropriate response as under: A. Phosphorus cycle in a imperfect cycle. R. Addition of phosphate to lakes leads to eutrophication.
A)
If both A and R are correct and the R is a correct explantion of A.
done
clear
B)
If both A and R are correct but R is not a correct explanation of A.
done
clear
C)
A is true but R is false.
done
clear
D)
Both A and R are false.
done
clear
View Answer play_arrow
question_answer 248) Direction: Each of the question below consist of two statements an Assertion (A) and a Reason (R). Mark of the appropriate response as under: A. The using of an insect and bat are analogous structures. R. Both are constructed similarly, though have different functions.
A)
If both A and R are correct and the R is a correct explantion of A.
done
clear
B)
If both A and R are correct but R is not a correct explanation of A.
done
clear
C)
A is true but R is false.
done
clear
D)
Both A and R are false.
done
clear
View Answer play_arrow
question_answer 249) Direction: Each of the question below consist of two statements an Assertion (A) and a Reason (R). Mark of the appropriate response as under: A. A farmer does not prefer to grow tobacco plant under long day conditions. R. Tobacco is a short days plant.
A)
If both A and R are correct and the R is a correct explantion of A.
done
clear
B)
If both A and R are correct but R is not a correct explanation of A.
done
clear
C)
A is true but R is false.
done
clear
D)
Both A and R are false.
done
clear
View Answer play_arrow
question_answer 250) Direction: Each of the question below consist of two statements an Assertion (A) and a Reason (R). Mark of the appropriate response as under: A.Photorespiration decreases net photosynthesis. R. Rate of respiration in dark and light is almost same in all plants.
A)
If both A and R are correct and the R is a correct explantion of A.
done
clear
B)
If both A and R are correct but R is not a correct explanation of A.
done
clear
C)
A is true but R is false.
done
clear
D)
Both A and R are false.
done
clear
View Answer play_arrow