question_answer 1) An object accelerates from rest to a velocity 27.5 m/s in 10 s, then the distance covered after next 10 s is :
A)
550 m
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B)
137.5 m
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C)
412.5 m
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D)
175 m
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question_answer 2) The position vector of a particle is \[\vec{r}=(a\cos \omega \,t)\,\hat{i}+(a\sin \omega \,t)\hat{j}\] The velocity vector of the particle is:
A)
parallel to position vector
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B)
perpendicular to position vector
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C)
directed towards the origin
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D)
directed away from the origin
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question_answer 3) If a person sitting in a train moving with a constant velocity along a straight line, throws a ball vertically upwards, then :
A)
ball will fall onwards the train
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B)
ball will return to throwers hand
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C)
ball will not return to throwers hand
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D)
none of the above
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question_answer 4) A stone thrown at an angle \[\theta \] to the horizontal reaches a maximum height H. Then the time of flight of stone will be :
A)
\[\sqrt{\frac{2H}{g}}\]
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B)
\[2\sqrt{\frac{2H}{g}}\]
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C)
\[2\sqrt{\frac{2H\sin \theta }{g}}\]
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D)
\[\sqrt{\frac{2H\sin \theta }{g}}\]
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question_answer 5) At the height 80 m, an aeroplane is moved with 150 m/s. A bomb is dropped from it, so as to hit a target. At what distance from the target should the bomb be dropped? \[(g=10\,m/{{s}^{2}})\]
A)
605.3 m
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B)
600 m
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C)
80 m
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D)
230 m
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question_answer 6) A spring has length \[l\] and spring constant k. If spring is divided in two equal parts then spring constant of each part is :
A)
k
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B)
\[\frac{k}{2}\]
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C)
2 k
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D)
4 k
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question_answer 7) A body is moving along a rough horizontal surface with an initial velocity 6 m/s. If the body comes to rest after travelling a distance 9 m, then the coefficient of sliding friction will be:
A)
0.4
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B)
0.2
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C)
0.6
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D)
0.8
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question_answer 8) If two soap bubbles of different radii are connected by a tube :
A)
air flows from the bigger bubble to the smaller bubble till the sizes become equal
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B)
air flows from bigger bubble to the smaller bubble till the sizes are interchanged
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C)
air flows from the smaller bubble to the bigger
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D)
there is no flow of air
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question_answer 9) If the momentum of body is increased by 100%, then the percentage increase in the kinetic energy will be :
A)
330%
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B)
225%
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C)
200%
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D)
300%
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question_answer 10) Water falls from a height 500 m. The rise in temperature of water at bottom if whole of the energy remains in water, will be : (specific heat of water is c = 4.2 kJ/kg)
A)
\[{{0.23}^{o}}C\]
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B)
\[{{1.16}^{o}}C\]
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C)
\[{{0.96}^{o}}C\]
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D)
\[{{1.02}^{o}}C\]
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question_answer 11) A bullet of mass 0.1 kg is fired with a speed of 100 m/s. The mass of gun being 50 kg. Then, the velocity of recoil become :
A)
0.05 m/s
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B)
0.5 m/s
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C)
0.1 m/s
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D)
0.2 m/s
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question_answer 12) A body of mass M moves with velocity v and collides elastically with another body of mass m (M >> m) at rest, then the velocity of body of mass m is :
A)
v
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B)
2v
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C)
v/2
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D)
zero
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question_answer 13) If torque is zero then :
A)
angular momentum is conserved
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B)
linear momentum is conserved
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C)
energy is conserved
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D)
angular momentum is not conserved
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question_answer 14) A solid sphere, a hollow sphere and a disc having same mass and radius roll down the same inclined plane from rest. Which one will reach the ground in least time?
A)
Solid sphere
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B)
Hollow sphere
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C)
Disc
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D)
All will reach in same time
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question_answer 15) In simple harmonic motion maximum velocity is at:
A)
extreme position
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B)
half of extreme position
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C)
equilibrium position
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D)
between extreme and equilibrium position
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question_answer 16) A ball is thrown from a point with a speed \[{{v}_{0}}\]at an angle of projection \[\theta \]. From the same point and at the same instant, a person starts running with a constant speed \[\frac{{{v}_{0}}}{2}\] to catch the ball. Will the person be able to catch the ball? If yes, what should be the angle of projection?
A)
Yes,\[{{60}^{o}}\]
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B)
Yes, \[{{30}^{o}}\]
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C)
No
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D)
Yes, \[{{45}^{o}}\]
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question_answer 17) The ratio of root mean square velocities of \[{{O}_{3}}\] and \[{{O}_{2}}\] is :
A)
1 : 1
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B)
2 : 3
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C)
3 : 2
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D)
\[\sqrt{2}:\sqrt{3}\]
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question_answer 18) If mass of He is 4 times that of hydrogen, then mean velocity of He is :
A)
2 times of H-mean value
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B)
\[\frac{1}{2}\]times of H-mean value
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C)
4 times of H-mean value
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D)
same as H-mean value
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question_answer 19) A wire elongates by \[l\] mm when a load w is hanged from it. If the wire goes over a pulley and two weights w each are hung at the two ends, the elongation of the wire will be (in mm):
A)
\[l\]
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B)
\[2\,l\]
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C)
zero
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D)
\[l/2\]
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question_answer 20) First law of thermodynamics is a consequence of the conservation of:
A)
energy
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B)
charge
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C)
heat
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D)
all of these
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question_answer 21) An ideal heat engine exhausting heat at \[{{77}^{o}}C\]is to have 30% efficiency. It must take hear at:
A)
\[{{127}^{o}}C\]
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B)
\[{{227}^{o}}C\]
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C)
\[{{327}^{o}}C\]
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D)
\[{{673}^{o}}C\]
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question_answer 22) A liquid cools from \[{{50}^{o}}C\] to \[{{45}^{o}}C\] in 5 min and from \[{{45}^{o}}C\] to \[{{41.5}^{o}}C\] in the next 5 min. The temperature of the surrounding is :
A)
\[{{27}^{o}}C\]
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B)
\[{{40.3}^{o}}C\]
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C)
\[{{23.3}^{o}}C\]
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D)
\[{{33.3}^{o}}C\]
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question_answer 23) At \[{{127}^{o}}C\], radiated energy is \[2.7\times {{10}^{-3}}\] J/s. At what temperature radiated energy is \[4.32\times {{10}^{6}}\]J/s?
A)
400 K
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B)
4000 K
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C)
80000 K
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D)
40000 K
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question_answer 24) If wave equation is \[y=0.08\sin \frac{2\pi }{\lambda }\,(200\,t-x)\], then the velocity of the wave will be :
A)
\[400\sqrt{2}\,m/s\]
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B)
\[200\sqrt{2}\,m/s\]
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C)
400 m/s
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D)
200 m/s
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question_answer 25) A plano-convex lens of refractive index 1.5 and radius of curvature 30 cm is silvered at the curved surface. Now, this lens has been used to form the image of an object. At what distance from this lens, an object be placed in order to have a real image of the size of the object?
A)
20 cm
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B)
30 cm
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C)
60 cm
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D)
80 cm
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question_answer 26) A man having height 6 m, observes image of 2 m height erect, then mirror used is:
A)
concave
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B)
convex
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C)
plane
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D)
none of these
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question_answer 27) Which of the following statements is true?
A)
If wavelength of light increases then frequency also increases
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B)
If energy increases then frequency also increases
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C)
Frequency of red light is greater than frequency of blue light
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D)
If energy increases then frequency decreases
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question_answer 28) If focal lengths of the objective and the eye piece of a telescope be \[{{f}_{o}}\] and \[{{f}_{e}}\] respectively, then its magnification is:
A)
\[\frac{1}{2}({{f}_{o}}+{{f}_{e}})\]
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B)
\[{{f}_{o}}/{{f}_{e}}\]
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C)
\[({{f}_{o}}+{{f}_{e}})\]
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D)
\[{{f}_{o}}\times {{f}_{e}}\]
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question_answer 29) Near and far points of human eye are :
A)
25 cm and infinite
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B)
50 cm and 100 cm
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C)
25 cm and 50 cm
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D)
0 cm and 25 cm
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question_answer 30) Work done in carrying a charge around an equipoteritial surface will :
A)
increase
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B)
decrease
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C)
zero
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D)
infinity
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question_answer 31) An air parallel plate capacitor has capacity C. The capacity and distance between plates are doubled when immersed in a liquid then dielectric constant of the liquid is :
A)
1
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B)
2
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C)
3
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D)
4
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question_answer 32) If the potential of a capacitor having capacity 6 \[\mu F\]is increased from 10 V to 20V, then increase in its energy is :
A)
\[12\times {{10}^{-6}}J\]
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B)
\[9\times {{10}^{-4}}J\]
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C)
\[4.5\times {{10}^{-6}}J\]
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D)
\[2.25\times {{10}^{-6}}J\]
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question_answer 33) The resistance of a bulb filament is 100 0 at temperature of \[{{100}^{o}}C\]. If its temperature coefficient of resistance be \[0.005{{/}^{o}}C\], its resistance will become 200\[\Omega \] at a temperature of:
A)
\[{{300}^{o}}C\]
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B)
\[{{400}^{o}}C\]
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C)
\[{{500}^{o}}C\]
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D)
\[{{200}^{o}}C\]
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question_answer 34) A galvanometer of resistance 22.8 \[\Omega \] measures 1 A. How much shunt should be used, so that it can be used to measure 20 A?
A)
1\[\Omega \]
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B)
2\[\Omega \]
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C)
1.2\[\Omega \]
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D)
2.2\[\Omega \]
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question_answer 35) If an ammeter is joined in parallel through a circuit, it can be damaged due to excess :
A)
resistance
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B)
current
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C)
voltage
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D)
none of these
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question_answer 36) The heat produced by a 100 W heater in 2 min will be equal to :
A)
\[12\times {{10}^{3}}J\]
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B)
\[10\times {{10}^{3}}J\]
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C)
\[6\times {{10}^{3}}J\]
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D)
\[3\times {{10}^{3}}J\]
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question_answer 37) Two wires have resistances R and 2R. When both are joining in series and in parallel, then ratio of heats generated in these situations on applying the same voltage, is :
A)
2 : 1
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B)
1 : 2
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C)
2 : 9
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D)
9 : 2
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question_answer 38) The current in a coil decreases from 1 A to 0.2 A in 10 s. The coefficient of self-inductance, if induced emf is 0.4 V, is :
A)
5 H
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B)
3 H
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C)
4 H
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D)
2 H
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question_answer 39) Cyclotron is a device which is used to :
A)
measure the charge
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B)
measure the voltage
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C)
accelerate protons
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D)
accelerate electrons
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question_answer 40) In L - R circuit, resistance is 8 \[\Omega \] and inductive reactance is 6 \[\Omega \], then impedance is :
A)
2\[\Omega \]
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B)
14\[\Omega \]
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C)
4\[\Omega \]
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D)
10\[\Omega \]
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question_answer 41) According to Maxwells hypothesis, changing electric field gives rise to :
A)
magnetic field
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B)
pressure gradient
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C)
charge
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D)
voltage
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question_answer 42) Dimensions of Plancks constant is :
A)
\[[M{{L}^{2}}{{T}^{-1}}]\]
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B)
\[[ML{{T}^{-2}}]\]
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C)
\[[M{{L}^{-2}}T]\]
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D)
\[[M{{L}^{-1}}{{T}^{2}}]\]
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question_answer 43) In any fission process the ratio \[\frac{mass\text{ }of\text{ }fission\text{ }products}{mass\text{ }of\text{ }parent\text{ }nucleus}\] is :
A)
less than 1
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B)
greater than 1
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C)
equal to 1
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D)
depends on the mass of parent nucleus
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question_answer 44) If in a nuclear fusion process, the masses of the fusing nuclei be \[{{m}_{1}}\] and \[{{m}_{2}}\]and the mass of the resultant nucleus be \[{{m}_{3}}\] , then:
A)
\[{{m}_{3}}={{m}_{1}}+{{m}_{2}}\]
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B)
\[{{m}_{3}}=({{m}_{1}}-{{m}_{2}})\]
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C)
\[{{m}_{3}}<({{m}_{1}}+{{m}_{2}})\]
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D)
\[{{m}_{3}}>({{m}_{1}}+{{m}_{2}})\]
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question_answer 45) In BJT, maximum current flows in which of the following?
A)
Emitter region
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B)
Base region
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C)
Collector region
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D)
Equal in all the regions
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question_answer 46) In frequency modulated wave :
A)
frequency varies with time
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B)
amplitude varies with time
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C)
both frequency and amplitude vary with time
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D)
both frequency and amplitude are constant
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question_answer 47) The total energy of an electron in the first excited state of hydrogen is about -3.4 eV. Its kinetic energy in this state is :
A)
-3.4eV
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B)
- 6.8 eV
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C)
6.8 eV
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D)
3.4 eV
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question_answer 48) If \[{{\lambda }_{v}},{{\lambda }_{x}}\] and \[{{\lambda }_{m}}\] represent the wavelengths of visible light, X-rays and microwaves respectively, then :
A)
\[{{\lambda }_{m}}>{{\lambda }_{x}}>{{\lambda }_{v}}\]
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B)
\[{{\lambda }_{v}}>{{\lambda }_{m}}>{{\lambda }_{x}}\]
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C)
\[{{\lambda }_{m}}>{{\lambda }_{v}}>{{\lambda }_{x}}\]
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D)
\[{{\lambda }_{v}}>{{\lambda }_{x}}>{{\lambda }_{m}}\]
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question_answer 49) The manifestation of band structure in solids is due to :
A)
Heisenbergs uncertainty principle
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B)
Faults exclusion principle
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C)
Bohrs correspondence principle
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D)
Boltzmanns law
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question_answer 50) An electric power station transmits 100 MW power through long and thin cable. If the transmission is at (i) 20000 V, (ii) 200 V, in which case would be less power loss?
A)
In (i) only
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B)
In (ii) only
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C)
In each case, power loss is zero
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D)
Data is insufficient
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question_answer 51)
Arrange the following as increase in oxidation number: (i) \[M{{n}^{2+}}\] (ii) \[Mn{{O}_{2}}\] (iii) \[KMn{{O}_{4}}\] (iv) \[{{K}_{2}}Mn{{O}_{4}}\]
A)
(i) > (ii) > (iii) > (iv)
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B)
(i) < (ii) < (iv) < (iii)
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C)
(ii) < (iii) < (i) < (iv)
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D)
(iii) > (i) > (iv) > (ii)
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question_answer 52) S-S bond is not present in :
A)
\[{{H}_{2}}{{S}_{2}}{{O}_{4}}\]
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B)
\[{{H}_{2}}{{S}_{2}}{{O}_{6}}\]
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C)
\[{{H}_{2}}{{S}_{2}}{{O}_{8}}\]
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D)
none of these
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question_answer 53) A radioactive substance after 48 days remains 25% of initial then find disintegration constant:
A)
\[2.89\times {{10}^{-2}}{{T}^{-1}}\]
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B)
\[3.89\times {{10}^{-3}}{{T}^{-1}}\]
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C)
\[4.89\times {{10}^{-2}}{{T}^{-1}}\]
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D)
none of these
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question_answer 54) Correct order of reactivity :
A)
\[{{I}_{2}}>B{{r}_{2}}>C{{l}_{2}}>{{F}_{2}}\]
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B)
\[B{{r}_{2}}>{{I}_{2}}>C{{l}_{2}}>{{F}_{2}}\]
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C)
\[C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}>{{F}_{2}}\]
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D)
\[{{F}_{2}}>C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}\]
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question_answer 55) Three elements A, B and C having reduction potential -1.5,-0.5 and 1.5 V respectively then arrange them in correct order according to reducing power:
A)
A > B > C
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B)
B > A > C
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C)
C > B > A
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D)
B > C > A
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question_answer 56) The standard reduction potential \[{{E}^{o}}\] for the half reactions are as : \[Zn\xrightarrow{{}}Z{{n}^{2+}}+2{{e}^{-}},\,\,{{E}^{o}}=0.76\,\,V\] \[Cu\xrightarrow{{}}C{{u}^{2+}}+2{{e}^{-}},\,\,{{E}^{o}}=0.34\,\,V\] The emf for the cell reaction: \[Zn+C{{u}^{2+}}\xrightarrow{{}}Z{{n}^{2+}}+Cu\]
A)
0.42 V
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B)
- 0.42 V
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C)
- 1.1 V
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D)
1.1 V
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question_answer 57) Variable oxidation state and degenerated orbital shows :
A)
s-block element
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B)
p-block element
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C)
d-block element
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D)
all of these
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question_answer 58) Which of the following is more acidic in nature?
A)
\[HClO\]
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B)
\[HCl{{O}_{2}}\]
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C)
\[HCl{{O}_{3}}\]
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D)
\[HCl{{O}_{4}}\]
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question_answer 59) Unit of the constant of zero order reaction is :
A)
\[tim{{e}^{-1}}\]
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B)
\[mol\,\,{{L}^{-1}}\,{{s}^{-1}}\]
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C)
\[L\,\,mo{{l}^{-1}}\,{{s}^{-1}}\]
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D)
\[L\,\,mo{{l}^{-1}}\,{{s}^{-1}}\]
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question_answer 60) Mole fraction of a solute in benzene is 0.2 then find molality of solute :
A)
3.2
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B)
2
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C)
4
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D)
3.6
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question_answer 61) What amount of water is added in 40 mL of NaOH (0.1 N) which is neutralized by 50 mL of HCl (0.2N)?
A)
80ml.
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B)
60 mL
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C)
40 mL
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D)
90 mL
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question_answer 62) Slope between PV and P at constant temperature is :
A)
zero
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B)
1
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C)
\[\frac{1}{2}\]
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D)
\[\frac{1}{\sqrt{2}}\]
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question_answer 63) When pressure is applied to the equilibrium system ice \[\] water. Which of the following phenomenon will happen?
A)
More ice will be formed
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B)
Water will evaporate
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C)
More water will be formed
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D)
Equilibrium will not be formed
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question_answer 64) For \[A\xrightarrow{{}}B,\,\,\Delta \,H=4\,k\,cal\,\,mo{{l}^{-1}}\] \[\Delta S=10\,cal\,mo{{l}^{-1}}{{K}^{-1}}\] reaction is spontaneous when temperature can be:
A)
400 K
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B)
300 K
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C)
500K
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D)
none of these
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question_answer 65) Degree of dissociation of \[N{{H}_{4}}OH\] in water is \[1.8\times {{10}^{-5}}\], then hydrolysis constant of \[N{{H}_{4}}Cl\]is:
A)
\[1.8\times {{10}^{-5}}\]
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B)
\[1.8\times {{10}^{-10}}\]
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C)
\[5.55\times {{10}^{-5}}\]
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D)
\[5.55\times {{10}^{-10}}\]
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question_answer 66) A current of strength 2.5A was passed through\[CuS{{O}_{4}}\] solution for 6 min 26s. The amount of copper deposited is : (At. wt. of Cu = 63.5,1 F = 96500 C)
A)
0.3175 g
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B)
3.175 g
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C)
0.635 g
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D)
6.35 g
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question_answer 67) The charge on an electron was discovered by :
A)
J.J. Thomson
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B)
Neil Bohr
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C)
James Chadwick
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D)
Mullikan
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question_answer 68) The normality of mixture obtained by mixing 100 mL of 0.2 M \[{{H}_{2}}S{{O}_{4}}\] + 100 mL of 0.2 M NaOH is:
A)
0.2
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B)
0.01
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C)
0.1
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D)
0.3
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question_answer 69) The Bohrs orbit radius for the hydrogen atom \[(n=1)\] is approximately \[0.53\text{ }\overset{o}{\mathop{A}}\,\]. The radius for the first excited state \[(n=2)\] orbit is :
A)
\[0.27\overset{o}{\mathop{A}}\,\]
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B)
\[1.27\overset{o}{\mathop{A}}\,\]
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clear
C)
\[2.12\overset{o}{\mathop{A}}\,\]
done
clear
D)
\[3.12\overset{o}{\mathop{A}}\,\]
done
clear
View Answer play_arrow
question_answer 70) A gas has a vapour density 11.2. The volume occupied by 1g of the gas at NTP is :
A)
1 L
done
clear
B)
11.2 L
done
clear
C)
22.4L
done
clear
D)
4L
done
clear
View Answer play_arrow
question_answer 71) If \[n=3,\,\,l=0\] and \[m=0\], then atomic, number is:
A)
12 or 13
done
clear
B)
13 or 14
done
clear
C)
10 or 11
done
clear
D)
11 or 12
done
clear
View Answer play_arrow
question_answer 72) Which is not a colligative property?
A)
Osmotic pressure
done
clear
B)
Optical activity
done
clear
C)
Elevation in boiling point
done
clear
D)
Depression in freezing point
done
clear
View Answer play_arrow
question_answer 73) The rate constant of a first order reaction is \[3\times {{10}^{-6}}\] per second and initial concentration is 0.10 M. Then the initial rate of reaction is:
A)
\[3\times {{10}^{-6}}m{{s}^{-1}}\]
done
clear
B)
\[3\times {{10}^{-8}}m{{s}^{-1}}\]
done
clear
C)
\[3\times {{10}^{-7}}m{{s}^{-1}}\]
done
clear
D)
\[3\times {{10}^{-9}}m{{s}^{-1}}\]
done
clear
View Answer play_arrow
question_answer 74) \[C{{H}_{2}}=C{{H}_{2}}(g)+{{H}_{2}}(g)\to C{{H}_{3}}-C{{H}_{3}}(g)\] The heat of reaction is [bond energy of C-C = 80 kcal, C = C = 145 kcal, C-H = 98 kcal, H-H = 103 kcal]
A)
-14 kcal
done
clear
B)
-28 kcal
done
clear
C)
-42 kcal
done
clear
D)
-56 kcal
done
clear
View Answer play_arrow
question_answer 75) Tyndall effect is shown by :
A)
precipitate
done
clear
B)
sol
done
clear
C)
plasma
done
clear
D)
solution
done
clear
View Answer play_arrow
question_answer 76) If \[p{{K}_{a}}\] values of four acids are given below at \[{{25}^{o}}C\] the strongest acid is :
A)
2.0
done
clear
B)
2.5
done
clear
C)
3.0
done
clear
D)
4.0
done
clear
View Answer play_arrow
question_answer 77) The solubility of gas in liquid depends upon :
A)
the nature of gas
done
clear
B)
the temperature
done
clear
C)
the nature of solvent
done
clear
D)
all of the above ,
done
clear
View Answer play_arrow
question_answer 78) Write the IUPAC name of: \[C{{H}_{3}}-C{{H}_{2}}-\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{3}}\]
A)
3- methylpentane-3-ol
done
clear
B)
3-hydroxyhexane
done
clear
C)
3-hydroxy-3-methyl pentane
done
clear
D)
all of the above
done
clear
View Answer play_arrow
question_answer 79) Natural rubber is polymer of:
A)
\[{{H}_{2}}C=\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}\]
done
clear
B)
\[{{H}_{2}}C=\overset{\begin{smallmatrix} Cl \\ | \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}\]
done
clear
C)
\[\overset{\begin{smallmatrix} {{C}_{6}}{{H}_{5}} \\ | \end{smallmatrix}}{\mathop{C}}\,H=C{{H}_{2}}\]
done
clear
D)
\[-{{(C{{H}_{2}}-C{{H}_{2}})}_{n}}-\]
done
clear
View Answer play_arrow
question_answer 80) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\] reacts with hot and excess HI, then formed product is :
A)
\[C{{H}_{3}}C{{H}_{2}}-I\] and \[C{{H}_{3}}C{{H}_{2}}OH\]
done
clear
B)
\[C{{H}_{2}}-C{{H}_{2}}-OH\]
done
clear
C)
\[C{{H}_{3}}-C{{H}_{2}}-I\]
done
clear
D)
none of the above
done
clear
View Answer play_arrow
question_answer 81) X compounds reacts with Na to give\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\] , then compound X is :
A)
\[C{{H}_{3}}C{{H}_{2}}OH\]
done
clear
B)
\[C{{H}_{3}}C{{H}_{2}}-Cl\]
done
clear
C)
\[C{{H}_{3}}-C{{H}_{3}}\]
done
clear
D)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}OH\]
done
clear
View Answer play_arrow
question_answer 82) In the following compound, least number of mono chlorination is possible :
A)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\]
done
clear
B)
\[C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{2}}-C{{H}_{3}}\]
done
clear
C)
\[C{{H}_{3}}-\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-H\]
done
clear
D)
\[C{{H}_{3}}-\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{3}}\]
done
clear
View Answer play_arrow
question_answer 83) \[C{{H}_{3}}C{{H}_{2}}OH\] convert into \[C{{H}_{3}}CHO\] in the presence of:
A)
\[N{{a}_{2}}C{{r}_{2}}{{O}_{7}}\] and \[NaOH\]
done
clear
B)
\[N{{a}_{2}}C{{r}_{2}}{{O}_{7}}\] and dil. \[{{H}_{2}}S{{O}_{4}}\]
done
clear
C)
\[NaOH\]
done
clear
D)
Fe in presence of \[NaOH\]
done
clear
View Answer play_arrow
question_answer 84) Which of the following reactant give Tollens reagent and Fehlings solution test?
A)
\[C{{H}_{3}}CHO\]
done
clear
B)
\[C{{H}_{3}}COOH\]
done
clear
C)
\[C{{H}_{3}}-\underset{\begin{smallmatrix} || \\ O \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\]
done
clear
D)
\[C{{H}_{3}}-C{{H}_{2}}-COOH\]
done
clear
View Answer play_arrow
question_answer 85) The alcohol manufactured from water gas is :
A)
\[C{{H}_{3}}OH\]
done
clear
B)
\[{{C}_{2}}{{H}_{5}}OH\]
done
clear
C)
\[C{{H}_{2}}C{{H}_{2}}COOH\]
done
clear
D)
\[{{(C{{H}_{3}})}_{2}}CHOH\]
done
clear
View Answer play_arrow
question_answer 86) The most stable alkene is :
A)
\[{{R}_{2}}C=C{{R}_{2}}\]
done
clear
B)
\[RCH=CHR\]
done
clear
C)
\[C{{H}_{2}}=C{{H}_{2}}\]
done
clear
D)
\[RCH=C{{R}_{2}}\]
done
clear
View Answer play_arrow
question_answer 87) The most favourable condition for the manufacture of \[N{{H}_{3}}\] is :
A)
high temperature and high pressure
done
clear
B)
low temperature and low pressure
done
clear
C)
high temperature-and low pressure
done
clear
D)
low temperature and high pressure
done
clear
View Answer play_arrow
question_answer 88) The conversion of benzaldehyde into benzyl alcohol takes place by :
A)
Fittig reaction
done
clear
B)
Wurtz Fittig reaction
done
clear
C)
Wurtz reaction
done
clear
D)
Cannizaros reaction
done
clear
View Answer play_arrow
question_answer 89) Paracetamol is an:
A)
antibiotic
done
clear
B)
antipyretic
done
clear
C)
antimalarial
done
clear
D)
analgesic
done
clear
View Answer play_arrow
question_answer 90) Benzaldehyde gives a positive test with :
A)
Tollens reagent
done
clear
B)
Fehling solution
done
clear
C)
Benedicts solution
done
clear
D)
all of the above
done
clear
View Answer play_arrow
question_answer 91) Which of the following is not soluble in\[NaOH\]?
A)
\[Fe{{(OH)}_{3}}\]
done
clear
B)
\[Zn{{(OH)}_{2}}\]
done
clear
C)
\[Al{{(OH)}_{3}}\]
done
clear
D)
\[Sn{{(OH)}_{2}}\]
done
clear
View Answer play_arrow
question_answer 92) Which of the following has least oxidation state of Fe?
A)
\[{{K}_{3}}[Fe{{(OH)}_{6}}]\]
done
clear
B)
\[{{K}_{2}}[Fe{{O}_{4}}]\]
done
clear
C)
\[FeS{{O}_{4}}{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\,.\,6{{H}_{2}}O\]
done
clear
D)
\[{{[Fe{{(CN)}_{6}}]}^{3-}}\]
done
clear
View Answer play_arrow
question_answer 93) Green vitriol is formed by :
A)
\[Fe{{S}_{2}}+{{H}_{2}}O+{{O}_{2}}\]
done
clear
B)
\[Fe{{S}_{2}}+{{H}_{2}}O+C{{O}_{2}}\]
done
clear
C)
\[Fe{{S}_{2}}+CO+C{{O}_{2}}\]
done
clear
D)
\[Fe{{S}_{2}}+CO\]
done
clear
View Answer play_arrow
question_answer 94) \[NaOH+{{P}_{4}}+{{H}_{2}}O\xrightarrow{{}}?\]
A)
\[P{{H}_{3}}+Na{{H}_{2}}P{{O}_{2}}\]
done
clear
B)
\[P{{H}_{3}}+N{{a}_{2}}P{{O}_{4}}\]
done
clear
C)
\[P{{H}_{3}}+N{{a}_{2}}HP{{O}_{2}}\]
done
clear
D)
\[{{H}_{3}}P{{O}_{4}}+NaO\]
done
clear
View Answer play_arrow
question_answer 95) Slag is represented by:
A)
\[CaSi{{O}_{3}}\]
done
clear
B)
\[Si{{O}_{3}}\]
done
clear
C)
\[Ca{{(OH)}_{2}}\]
done
clear
D)
\[CaO\]
done
clear
View Answer play_arrow
question_answer 96) Which of the following is not a nucleophile?
A)
\[B{{F}_{3}}\]
done
clear
B)
\[N{{H}_{3}}\]
done
clear
C)
\[C{{N}^{-}}\]
done
clear
D)
\[O{{H}^{-}}\]
done
clear
View Answer play_arrow
question_answer 97) Fuming sulphuric acid is :
A)
\[{{H}_{2}}S{{O}_{4}}+S{{O}_{3}}\]
done
clear
B)
\[{{H}_{2}}S{{O}_{4}}+S{{O}_{2}}\]
done
clear
C)
\[{{H}_{2}}S{{O}_{4}}\]
done
clear
D)
\[{{H}_{2}}S{{O}_{4}}+S{{O}_{4}}\]
done
clear
View Answer play_arrow
question_answer 98) On strong heating \[MgC{{l}_{2}}\,.\,\,6{{H}_{2}}O\], the product obtained is :
A)
\[MgC{{l}_{2}}\]
done
clear
B)
\[MgO\]
done
clear
C)
\[MgC{{l}_{2}}\,.\,2{{H}_{2}}O\]
done
clear
D)
\[MgC{{l}_{2}}\,.\,4{{H}_{2}}O\]
done
clear
View Answer play_arrow
question_answer 99) The highest first ionisation potential is of :
A)
carbon
done
clear
B)
boron
done
clear
C)
oxygen
done
clear
D)
nitrogen
done
clear
View Answer play_arrow
question_answer 100) In sulphur detection of an organic compound, sodium nitroprusside solution is added to sodium extract. Formation of violet colour is due to:
A)
\[N{{a}_{3}}Fe{{(CN)}_{6}}\]
done
clear
B)
\[N{{a}_{3}}[Fe{{(CN)}_{5}}NOS]\]
done
clear
C)
\[Fe{{(CNS)}_{3}}\]
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 101) Mycology is related with :
A)
algae
done
clear
B)
fungi
done
clear
C)
bacteria
done
clear
D)
yeast
done
clear
View Answer play_arrow
question_answer 102) Phylum of Taenia solium is :
A)
Aschelminthes
done
clear
B)
Annelida
done
clear
C)
Platyhelminthes
done
clear
D)
Mollusca
done
clear
View Answer play_arrow
question_answer 103) Which base is present in RNA but not in DNA?
A)
Uracil
done
clear
B)
Thymine
done
clear
C)
Guanine
done
clear
D)
Cytosine
done
clear
View Answer play_arrow
question_answer 104) Cell wall of a cell is removed, the remaining is called
A)
etioplast
done
clear
B)
aleuroplast
done
clear
C)
amyloplast
done
clear
D)
protoplast
done
clear
View Answer play_arrow
question_answer 105) Movement among cells against concentration gradient is called :
A)
osmosis
done
clear
B)
active transport
done
clear
C)
diffusion
done
clear
D)
passive transport
done
clear
View Answer play_arrow
question_answer 106) Synapsis occurs in ...... phase of meiosis :
A)
zygotene
done
clear
B)
diplotene
done
clear
C)
pachytehe
done
clear
D)
leptotene
done
clear
View Answer play_arrow
question_answer 107) Which cell organelle is absent in human sperm?
A)
ER
done
clear
B)
Mitochondria
done
clear
C)
Nucleus
done
clear
D)
Centrioles
done
clear
View Answer play_arrow
question_answer 108) Number of carbons in ring of deoxyribose sugar is:
A)
four
done
clear
B)
five
done
clear
C)
six
done
clear
D)
three
done
clear
View Answer play_arrow
question_answer 109) Which of the following act as secondary messenger in metabolism?
A)
ATP
done
clear
B)
C-AMP
done
clear
C)
ADP
done
clear
D)
NAD
done
clear
View Answer play_arrow
question_answer 110) Which of the following, does not help in clotting of blood?
A)
Heparin
done
clear
B)
Prothrombin
done
clear
C)
\[C{{a}^{2+}}\]
done
clear
D)
Fibrinogen
done
clear
View Answer play_arrow
question_answer 111) Pollination by wind is called :
A)
anemophily
done
clear
B)
hydrophily
done
clear
C)
zoophily
done
clear
D)
entomophily
done
clear
View Answer play_arrow
question_answer 112) Laticiferous gland found in which plant part?
A)
Cortex
done
clear
B)
Epidermis
done
clear
C)
Endodermis
done
clear
D)
Vascular bundle
done
clear
View Answer play_arrow
question_answer 113) The joint between axon of a neuron and the dendrite of the next is called :
A)
synapse
done
clear
B)
bridge
done
clear
C)
junction
done
clear
D)
joint
done
clear
View Answer play_arrow
question_answer 114) Fruiting body of mushrooms is present in :
A)
fungi
done
clear
B)
algae
done
clear
C)
like monocotyledon seeds
done
clear
D)
like dicotyledon seeds
done
clear
View Answer play_arrow
question_answer 115) Black stem rust of wheat is caused by :
A)
fungi
done
clear
B)
Protozoa
done
clear
C)
algae
done
clear
D)
bacteria
done
clear
View Answer play_arrow
question_answer 116) \[{{O}_{2}}\] released in the process of photosynthesis, comes from:
A)
\[C{{O}_{2}}\]
done
clear
B)
water
done
clear
C)
sugar
done
clear
D)
pyruvic acid
done
clear
View Answer play_arrow
question_answer 117) Excretory organ of spider is :
A)
coxal gland
done
clear
B)
flame cells
done
clear
C)
Malpighian tubule
done
clear
D)
nephridia
done
clear
View Answer play_arrow
question_answer 118) In human teeth, which help in cutting:
A)
canine
done
clear
B)
incisor
done
clear
C)
molar
done
clear
D)
premolar
done
clear
View Answer play_arrow
question_answer 119) Hyposecretion of growth hormone causes:
A)
dwarfism
done
clear
B)
cretinism
done
clear
C)
myxoedema
done
clear
D)
acromegaly
done
clear
View Answer play_arrow
question_answer 120) Hormone prolactin is secreted by :
A)
posterior pituitary
done
clear
B)
thyroid
done
clear
C)
anterior pituitary
done
clear
D)
hypothalamus
done
clear
View Answer play_arrow
question_answer 121) Human urine as compared to human blood is:
A)
hypotonic
done
clear
B)
hypertonic
done
clear
C)
isotonic
done
clear
D)
all of these
done
clear
View Answer play_arrow
question_answer 122) \[HCl\] is secreted by which of the following cell of stomach?
A)
Chief cells
done
clear
B)
Parietal cells (oxyntic cells)
done
clear
C)
Peptic cells
done
clear
D)
Goblet cells
done
clear
View Answer play_arrow
question_answer 123) Blood haemoglobin has high affinity for:
A)
\[C{{O}_{2}}\]
done
clear
B)
CO
done
clear
C)
\[{{O}_{2}}\]
done
clear
D)
H
done
clear
View Answer play_arrow
question_answer 124) Steroid hormone is derived from :
A)
corticoid
done
clear
B)
cholesterol
done
clear
C)
AAD
done
clear
D)
protein
done
clear
View Answer play_arrow
question_answer 125) Insulin deficiency causes :
A)
diabetes insipidus
done
clear
B)
diabetes mellitus
done
clear
C)
goitre
done
clear
D)
all of the above
done
clear
View Answer play_arrow
question_answer 126) Activity of brain is recorded by :
A)
ECG
done
clear
B)
EEG n
done
clear
C)
MET
done
clear
D)
CT
done
clear
View Answer play_arrow
question_answer 127) Increase glucose level in human is called :
A)
hypoglycemia
done
clear
B)
hyperglycemia
done
clear
C)
hyposuria
done
clear
D)
hypersuria
done
clear
View Answer play_arrow
question_answer 128) Development of animal embryo from egg without fertilization is called :
A)
parthenogenesis
done
clear
B)
parthenocarpy
done
clear
C)
apospory
done
clear
D)
apomixes
done
clear
View Answer play_arrow
question_answer 129) Which part of the brain is affected first in a drunk person?
A)
Cerebrum
done
clear
B)
Olfactory lobe
done
clear
C)
Cerebellum
done
clear
D)
Medulla oblongata
done
clear
View Answer play_arrow
question_answer 130) Testosterone is secreted by :
A)
Leydig cells
done
clear
B)
Sertoli cells
done
clear
C)
Seminiferous tubule
done
clear
D)
None of the above
done
clear
View Answer play_arrow
question_answer 131) Reproduction in most of the bacteria is by a process known as :
A)
binary fission
done
clear
B)
budding
done
clear
C)
sexual
done
clear
D)
sporulation
done
clear
View Answer play_arrow
question_answer 132) Lion is kept under in Eltolian pyramid as :
A)
producer
done
clear
B)
primary consumer
done
clear
C)
secondary consumer
done
clear
D)
tertiary consumer
done
clear
View Answer play_arrow
question_answer 133) Plants developing in dry condition are :
A)
xerophytes
done
clear
B)
mesophytes
done
clear
C)
lithophytes
done
clear
D)
hydrophytes
done
clear
View Answer play_arrow
question_answer 134) Bacteria and fungi developing on dead decaying organisms are :
A)
parasites
done
clear
B)
commensals
done
clear
C)
saprophytes
done
clear
D)
symbionts
done
clear
View Answer play_arrow
question_answer 135) Klinefelters syndrome is denoted by chromosome :
A)
44 + XXY
done
clear
B)
44 + XO
done
clear
C)
44 + XXX
done
clear
D)
44 + YY
done
clear
View Answer play_arrow
question_answer 136) Oxygenic compounds of biological process, which activates chemical reactions are :
A)
vitamins
done
clear
B)
hormones
done
clear
C)
enzymes
done
clear
D)
fats
done
clear
View Answer play_arrow
question_answer 137) 72 beat per minute heart beat rate of man is controlled by :
A)
SA-node
done
clear
B)
Ventricles
done
clear
C)
Purkinje fibres
done
clear
D)
AV-node
done
clear
View Answer play_arrow
question_answer 138) When plant cell is kept in saline drip, cell:
A)
decrease in size
done
clear
B)
bursts out
done
clear
C)
increase in size
done
clear
D)
unchanged
done
clear
View Answer play_arrow
question_answer 139) Animals active at night are :
A)
diurnal
done
clear
B)
nocturnal
done
clear
C)
parasites
done
clear
D)
nocto- diurnal
done
clear
View Answer play_arrow
question_answer 140) Collagen fibre are secreted by :
A)
mast cells
done
clear
B)
macrophage
done
clear
C)
histiocytes
done
clear
D)
fibroblasts
done
clear
View Answer play_arrow
question_answer 141) Main function of glomerulus is :
A)
filtration of urine
done
clear
B)
reabsorption of \[{{H}_{2}}O\]
done
clear
C)
reabsorption of \[N{{a}^{+}}\]
done
clear
D)
concentration of urine
done
clear
View Answer play_arrow
question_answer 142) Bond present between two carbohydrate molecules is :
A)
glycosidic
done
clear
B)
hydrogen bond
done
clear
C)
phosphodiester
done
clear
D)
amide
done
clear
View Answer play_arrow
question_answer 143) Guard cellcontrols :
A)
intensity of light entering
done
clear
B)
photosynthesis
done
clear
C)
closing and opening of stomata
done
clear
D)
change in green colour
done
clear
View Answer play_arrow
question_answer 144) Water molecules are connected by :
A)
van der Wall force
done
clear
B)
covalent bond
done
clear
C)
H-bond
done
clear
D)
amide linkage
done
clear
View Answer play_arrow
question_answer 145) The cell which destroy worn out white and red blood cells, bacteria and micro organisms passing from the liver is :
A)
P-cells
done
clear
B)
T-cells
done
clear
C)
Kupffer cells
done
clear
D)
Oxytocin cells
done
clear
View Answer play_arrow
question_answer 146) Pollen tube enters into ovule through micropyle is called :
A)
porogamy
done
clear
B)
chalazogamy
done
clear
C)
mesogamy
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 147) Which plant hormone causes fruit ripening?
A)
JAA
done
clear
B)
Cytokinin
done
clear
C)
Ethylene
done
clear
D)
GA
done
clear
View Answer play_arrow
question_answer 148) Which hormone is responsible for apical growth?
A)
IAA
done
clear
B)
ABA
done
clear
C)
GA
done
clear
D)
All of these
done
clear
View Answer play_arrow
question_answer 149) Which cell organelle is present in both prokaryotic and eukaryotic cell?
A)
Ribosome
done
clear
B)
Mitochondria
done
clear
C)
ER
done
clear
D)
Nucleus
done
clear
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question_answer 150) Rhabditiform larva occurs in :
A)
Neries
done
clear
B)
Ascaris
done
clear
C)
Taenia
done
clear
D)
Fasciola
done
clear
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