question_answer 1) A body of mass 10 kg is lying on a rough plane inclined at an angle of \[30{}^\circ \] to the horizontal and the coefficient of friction is 0.5. The minimum force required to pull the body up the plane is:
A)
914 N
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B)
91.4 N
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C)
9.14 N
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D)
0.914 N
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question_answer 2) Two spheres of radius \[{{R}_{1}}\] and \[{{R}_{2}}\] respectively are charged and joined by a wire. The ratio of electric field of the spheres is:
A)
\[\frac{R\,_{2}^{2}}{R\,_{1}^{2}}\]
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B)
\[\frac{R\,_{1}^{2}}{R\,_{2}^{2}}\]
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C)
\[\frac{R{{\,}_{2}}}{R{{\,}_{1}}}\]
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D)
\[\frac{R{{\,}_{1}}}{R{{\,}_{2}}}\]
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question_answer 3) Monochromatic light is refracted from air into the glass of refractive index\[\mu \]. The ratio of the wavelength of incident and refracted waves is:
A)
1:1
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B)
\[\mu :1\]
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C)
1:\[{{\mu }^{2}}\]
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D)
\[1 :\mu \]
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question_answer 4) A person cannot see objects clearly beyond 2.0 m. The power of lens required to correct his vision will be :
A)
\[-\,0.5\text{ }D\]
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B)
\[+\,1.0\text{ }D\]
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C)
\[-\,1.0\,D\]
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D)
\[+\,2.0\,D\]
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question_answer 5) The dominant mechanisms for motion of charge carriers in forward and reverse biased silicon\[\text{p-n}\]junctions are:
A)
drift in both forward and reverse bias
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B)
diffusion in both forward and reverse bias
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C)
diffusion in forward bias, drift in reverse bias
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D)
drift in forward bias diffusion in reverse bias
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question_answer 6) If half-life of a radioactive atom is 2.3 days, then its decay constant would be:
A)
0.2
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B)
0.1
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C)
2.3
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D)
0.3
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question_answer 7) In Youngs double slit experiment, a mica slit of thickness t and refractive index \[\mu \] is introduced in the ray from the first source\[{{S}_{1.}}\]. By how much distance the fringes pattern will be displaced?
A)
\[\frac{D}{d}(\mu -1)\]
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B)
\[\frac{d}{(\mu -1)D}\]
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C)
\[\frac{D}{d}(\mu -1)t\]
done
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D)
\[\frac{d}{D}(\mu -1)t\]
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question_answer 8) A uniform chain of length L and mass M is lying on a smooth table and one-third of its length is hanging vertically down over the edge of the table. If g is the acceleration due to gravity, the work required to pull the hanging part on to the table is:
A)
\[\frac{MgL}{18}\]
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B)
\[\frac{MgL}{9}\]
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C)
\[\frac{MgL}{3}\]
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D)
\[MgL\]
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question_answer 9) A (100 W, 200V) bulb is connected to a to V power supply. The power consumption would be:
A)
80 W
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B)
125 W
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C)
64 W
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D)
100 W
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question_answer 10) A body is moved along a straight line by a machine delivering constant power. The distance moved by the body in time t is proportional to:
A)
\[{{t}^{1/2}}\]
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B)
\[{{t}^{3/2}}\]
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C)
\[{{t}^{2}}\]
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D)
\[{{t}^{3/4}}\]
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question_answer 11) The wavelength of the energy emitted when electron come from fourth orbit to second orbit in hydrogen is \[20,397\text{ }c{{m}^{-1}}\]. The wavelength of energy for the same transition in He+ is :
A)
\[81,988c{{m}^{-1}}\]
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B)
\[40,994c{{m}^{-1}}\]
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C)
\[20,497c{{m}^{-1}}\]
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D)
\[5,099\text{ }c{{m}^{-1}}\]
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question_answer 12) 12. If the binding energy per nucleon in \[L{{i}^{7}}\] and \[H{{e}^{4}}\] nuclei are respectively 5.60 MeV and 7.06 MeV, then energy of reaction \[L{{i}^{7}}+p\xrightarrow{{}}2\,{{\,}_{2}}H{{e}^{4}}\] is:
A)
17.3 MeV
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B)
8.4 MeV
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C)
2.4 MeV
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D)
19.6 MeV
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question_answer 13) A convex lens of focal length 0.5 m and concave lens of focal length 1 m are combined. The power of the resulting lens will be:
A)
- 1 D
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B)
0.5 D
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C)
1D
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D)
- 0.5 D
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question_answer 14) Half lives of two radioactive substances A and B are respectively 20 minute and 40 minute. Initially the sample of A and B have equal number of nuclei. After 80 minutes, the ratio remains in number of A and B nuclei is.
A)
4 : 1
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B)
1 : 16
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C)
1 : 1
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D)
1 : 4
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question_answer 15) The plates of a parallel plate capacitor of capacity 50\[\mu F\] are charged to a potential of 100 volts and then separated from each other so that the distance between them is doubled. How much is the energy spent in doing so?
A)
\[\text{12}\text{.5 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-2}}}\text{J}\]
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B)
\[\text{-25 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-2}}}\text{J}\]
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C)
\[\text{-12}\text{.5 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-2}}}\text{J}\]
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D)
\[\text{25 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-2}}}\text{J}\]
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question_answer 16) Two point charges + 3 \[\mu C\] and + 8\[\mu C\] repel each other with a force of 40 N. If a charge of - 5 \[\mu C\] is added to each of them, then the force between them will become:
A)
+10 N
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B)
+20 N
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C)
-20 N
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D)
-10 N
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question_answer 17) Two waves \[y=0.25\text{ }sin\,316t\] and \[y=0.25\,\sin 310\,t\] are travelling in same direction. The number of beats produced per second will be :
A)
3
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B)
6
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C)
\[3\pi \]
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D)
\[3/\pi \]
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question_answer 18) The intensity of radiation emitted by the sun has its maximum value at a wavelength of 510 nm and that emitted by the North Star has the maximum value at 350 nm. If these stars behave like black bodies, then the ratio of the surface temperature of the sun and north star is:
A)
0.83
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B)
1.21
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C)
0.69
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D)
1.46
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question_answer 19) The unit of luminous efficiency of electric bulb is:
A)
lumen
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B)
watt
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C)
lux
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D)
lumen/watt
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question_answer 20) An electron having charge \[1.6\times {{10}^{-19}}\] and mass \[9\times {{10}^{-31}}kg\] is moving with \[4\times {{10}^{6}}m{{s}^{-1}}\] speed in a magnetic field \[2\times {{10}^{-1}}\] tesla in a circular orbit. The force acting on electron and the radius of the circular orbit will be:
A)
\[1.28\times {{10}^{-13}}N,\text{ }1.1\times {{10}^{-4}}m\]
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B)
\[1.28\times {{10}^{-13~~}}N,\text{ }1.1\text{ }{{10}^{-3}}m\]
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C)
\[1.28\times {{10}^{-14~}}N,\text{ }1.1\times {{10}^{-3}}m\]
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D)
\[12.8\times {{10}^{-13~}}N,\text{ }1.1\times {{10}^{-4}}m\]
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question_answer 21) An astronomical telescope has an angular magnification of magnitude 5 for distant objects. The separation between the objective and the eyepiece is 36 cm and final image is formed at infinity. The focal lengths of the objective and eyepiece are respectively:
A)
20 cm, 16 cm
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B)
50 cm, 10 cm
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C)
30 cm, 6 cm
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D)
45 cm, - 9 cm
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question_answer 22) The nucleus \[_{\text{48}}^{\text{115}}\text{Cd}\] after two successive\[\text{-}\]decays will give:
A)
\[_{\text{50}}^{\text{115}}\text{Sn}\]
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B)
\[_{\text{50}}^{\text{113}}\text{Sn}\]
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C)
\[_{49}^{\text{114}}\text{ln}\]
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D)
\[_{46}^{\text{115}}\text{Pa}\]
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question_answer 23) The refractive index of water with respect to air is 4/3 and the refractive index of glass with respect to air is 3/2. The refractive index of water with respect to glass is:
A)
8/9
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B)
9/8
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C)
2
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D)
1/2
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question_answer 24) For the structural analysis of crystals, X-rays are used because:
A)
X-rays are highly penetrating radiations
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B)
wavelength of X-rays is of the order of nuclear size
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C)
X-rays have wavelength of the order of interatomic spacing
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D)
X-rays are coherent radiations
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question_answer 25) 110 J of heat are added to a gaseous system whose internal energy is 40 J, then the amount of external work done is:
A)
40 J
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B)
110 J
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C)
70 J
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D)
150 J
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question_answer 26) Two trains, each 50 m long are travelling in opposite direction with velocity 10 m/s and 15 m/s. The time of crossing is:
A)
\[\frac{10}{3}s\]
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B)
\[2\,s\]
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C)
\[2\sqrt{3}\,s\]
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D)
\[2\sqrt{3}\,s\]
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question_answer 27) If mass of body is M on the earths surface, then the mass of the same body on the moons surface is:
A)
zero
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B)
M/6
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C)
M
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D)
none of these
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question_answer 28) A spherical source of power 4 W and frequency 800 Hz is emitting sound waves. The intensity of waves at a distance 200 m is:
A)
\[\text{2 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-4}}}\text{W/}{{\text{m}}^{\text{2}}}\]
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B)
\[\text{8 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-6}}}\text{W/}{{\text{m}}^{\text{2}}}\]
done
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C)
\[\text{4W/}{{\text{m}}^{\text{2}}}\]
done
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D)
\[\text{1 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-4}}}\text{W/}{{\text{m}}^{\text{2}}}\]
done
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question_answer 29) A body of mass 2 kg is moving with velocity 10 m/s towards east. Another body of same mass and same velocity moving towards north collides with former and coalesces and moves towards North-East. Its velocity is :
A)
5 m/s
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B)
2.5 m/s
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C)
10 m/s
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D)
5\[\sqrt{2}\] m/s
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question_answer 30) A man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. By what velocity the gun rebounds backwards:
A)
0.01 m/s
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B)
1 m/s
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C)
10 m/s
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D)
0.1 m/s
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question_answer 31) Which of the following formula is wrong?
A)
\[{{\text{C}}_{\text{P}}}\text{-}\,{{\text{C}}_{}}\text{=}\,\text{2}\,\text{R}\]
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B)
\[\frac{{{\text{C}}_{\text{P}}}}{{{\text{C}}_{}}}\text{=}\,\]
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C)
\[{{C}_{\upsilon }}=\frac{R}{-1}\]
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D)
\[{{C}_{\upsilon }}=\frac{R}{-1}\]
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question_answer 32) The mass of the earth is 81 times that of the moon and the radius of the earth is 3.5 times that of the moon. The ratio of the escape velocity on the surface of earth to that on the surface of moon will be :
A)
0.39
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B)
4.81
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C)
2.57
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D)
0.2
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question_answer 33) When the displacement is half the amplitude the ratio of potential energy to the total energy is:
A)
1/4
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B)
1/2
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C)
1/8
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D)
1
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question_answer 34) The number of turns in the primary coil of a transformer is 200 and the number of turns in the secondary coil is 10. If 240 volt AC is applied to the primary, the output from the secondary will be:
A)
6V
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B)
12V
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C)
24V
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D)
48V
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question_answer 35) If the pressure amplitude in a sound wave is tripled, then the intensity of sound is increased by a factor of:
A)
6
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B)
3
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C)
9
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D)
\[\sqrt{3}\]
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question_answer 36) Four condensers are connected as shown in the given figure, the capacity of each is 8\[\mu F\]. The capacity between points X and Y will be:
A)
\[16\mu F\]
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B)
\[64\mu F\]
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C)
\[2\mu F\]
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D)
\[32\mu F\]
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question_answer 37) The bob of a simple pendulum of mass and total energy \[{{\text{E}}_{\text{k}}}\] will have maximum linear momentum equal to:
A)
\[\text{ME}_{k}^{2}\]
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B)
\[\text{2mE}_{k}^{{}}\]
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C)
\[\sqrt{\frac{\text{2E}_{k}^{{}}}{m}}\]
done
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D)
\[\sqrt{\text{2mE}_{k}^{{}}}\]
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question_answer 38) Light of wavelength of \[6000\overset{\text{o}}{\mathop{\text{A}}}\,\] has a frequency of:
A)
\[5\times {{10}^{14}}Hz\]
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B)
\[5\times {{10}^{12}}Hz\]
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C)
\[5\times {{10}^{15}}Hz\]
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D)
\[5\times {{10}^{6}}Hz\]
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question_answer 39) You are provided three bulbs of 15, 40 and 60 watt. Which of them has lowest resistance:
A)
40 watt bulb
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B)
60 watt bulb
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C)
25 watt bulb
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D)
Information is insufficient
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question_answer 40) Heat produced in a wire of resistance R due to current flowing at constant potential difference, is proportional to :
A)
\[\frac{1}{{{R}^{2}}}\]
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B)
\[\frac{1}{R}\]
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C)
\[R\]
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D)
\[{{R}^{2}}\]
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question_answer 41) Standing waves arc educed in a 10 m long stretched string. If the string vibrates in 5 segments and the wave velocity is 20 m/s, the frequency is:
A)
10 Hz
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B)
5 Hz
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C)
4 Hz
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D)
2 Hz
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question_answer 42) A sample of gas expands from volume \[{{V}_{1}}\] to \[{{V}_{2}}\] The amount of work done by the gas is greatest when the expansion is:
A)
isobaric
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B)
isothermal
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C)
adiabatic
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D)
equal in all cases
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question_answer 43) A soap bubble in vacuum has a radius of 3 cm and another soap bubble in vaccum has a radius of 4 cm. If the two bubbles coalesce under isothermal condition, then the radius of the new bubble is :
A)
4.5cm,
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B)
2.3cm
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C)
7 cm
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D)
5 cm
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question_answer 44) A body is whirled in a horizontal circle of radius 20 cm. It has angular velocity of 10 rad/s. What is its linear velocity at any point on circular path?
A)
2 m/s
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B)
10 m/s
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C)
20 m/s
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D)
\[\sqrt{2}\]m/s
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question_answer 45) A car of mass m is driven with acceleration a along a straight level road against a constant external resistive force R. When the velocity of the car is v, the rate at which the engine of the car is doing work, will be:
A)
\[(ma-R)\upsilon \]
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B)
\[(R+ma)\upsilon \]
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C)
\[ma\upsilon \]
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D)
\[R\upsilon \]
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question_answer 46) When light of wavelength 300 nm falls on a photoelectric emitter, photoelectrons are liberated. For another emitter, however light of 600 nm wavelength is sufficient for creating photoemission. What is the ratio of the work functions of the two emitters:
A)
1 : 4
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B)
4 : 1
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C)
2 : 1
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D)
1 : 2
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question_answer 47) A spring 40 mm long is stretched by the application of a force. If 10 N force is required to stretch the spring through 1 mm, then work done in stretching the spring through 40 mm is:
A)
8 J
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B)
23 J
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C)
68 J
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D)
84 J
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question_answer 48) A spring of force constant k is cut into three equal parts and then they are suspended from the same point. The force constant of the system is:
A)
k
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B)
3k
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C)
9k
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D)
\[\frac{k}{9}\]
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question_answer 49) The accelerating voltage of an electron is increased to two times, its de Broglie wavelength will be:
A)
increase 2 times
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B)
decrease 0.5 times
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C)
increase 1.4 times
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D)
decrease 0.7 times
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question_answer 50) The capacitance of a metallic sphere will be \[1\mu F,\] if it radius is nearly:
A)
9 km
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B)
10 m
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C)
1.11 m
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D)
1.11 cm
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question_answer 51) The interference phenomenon can take place:
A)
in longitudinal waves
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B)
in standing waves only
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C)
interference waves
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D)
in all waves
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question_answer 52) The energy of a photon of light of wavelength 450 nm is:
A)
\[2.5\times {{10}^{-17}}J\]
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B)
\[1.25\,\times {{10}^{-17}}J\]
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C)
\[2.5\times {{10}^{-19}}J\]
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D)
\[4.4\times {{10}^{-19}}J\]
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question_answer 53) Moment of inertia of a ring of mass m = 3 gm and radius r = 1 cm about an axis passing through its edge and parallel to its natural axis is:
A)
\[1\text{ }gm\text{ }c{{m}^{2}}\]
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B)
\[6\text{ }gm\text{ }c{{m}^{2}}\]
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C)
\[100\text{ }gm\text{ }c{{m}^{2}}\]
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D)
\[10\text{ }gm\text{ }c{{m}^{2}}\]
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question_answer 54) A bullet of mass 0.1 kg is fired with a speed of 100 m/sec, the mass of gun is 50 kg. The velocity of recoil is :
A)
0.05 m/sec
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B)
0.5 m/sec
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C)
0.1 m/sec
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D)
0.2 m/sec
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question_answer 55) At constant volume, temperature is increased. Then:
A)
collisions will be in straight lines
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B)
collisions on walls will be less
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C)
number of collisions per unit time will increase
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D)
collisions will not change
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question_answer 56) Which one of the following can detect infrared radiation :
A)
ordinary photographic plate
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B)
fluorescence screen
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C)
LCR circuit
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D)
thermopile
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question_answer 57) The minimum thickness of air film which appears dark when viewed under 500 nm light normally is:
A)
1000 nm
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B)
500 nm
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C)
750 nm
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D)
250 nm
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question_answer 58) The number of lines of force coming out but from + 1 coulomb is :
A)
1
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B)
\[1.11\times {{10}^{-10}}\]
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C)
\[1.12\times {{10}^{4}}\]
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D)
\[1.1\times {{10}^{19}}\]
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question_answer 59) For a transistor \[\,\text{=}\,\text{62,}\]\[{{R}_{L}}\,\text{=}\,5000\,\Omega \text{,}\]\[{{R}_{i}}\,\text{=}\,500\,\Omega .\] Voltage amplification is:
A)
260
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B)
620
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C)
2.6
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D)
6.2
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question_answer 60) A refrigerator has a coefficient of performance is 9. If the surrounding temperature is \[27{}^\circ C\]. The minimum temperature it can cool a body inside is (in\[{}^\circ C\]):
A)
3
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B)
zero
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C)
10
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D)
-3
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question_answer 61) Although CO is neutral gas, yet it shows acidic nature or reaction with: (at high pressure and temperature)
A)
\[LiOH\]
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B)
\[Ca{{(OH)}_{2}}\]
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C)
\[NaOH\]
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D)
\[Zn{{(OH)}_{2}}\]
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question_answer 62) Which of the following has maximum hydration energy?
A)
\[N{{a}^{+}}\]
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B)
\[L{{i}^{+}}\]
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C)
\[M{{g}^{2+}}\]
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D)
\[C{{a}^{2+}}\]
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question_answer 63) Which species does not exist?
A)
\[{{(SiC{{l}_{6}})}^{2-}}\]
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B)
\[CCl_{6}^{2-}\]
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C)
\[GeCl_{6}^{2-}\]
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D)
\[AlCl_{4}^{-}\]
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question_answer 64) What is the weight of 1 mole atoms of Ag?
A)
10.79
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B)
107.9
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C)
108.9
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D)
none of these
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question_answer 65) When \[{{H}_{2}}S\] reacts with halogens, the halogens:
A)
form sulphur halides
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B)
are oxidised
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C)
are reduced
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D)
none of the above
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question_answer 66) \[Pb{{O}_{2}}\] is:
A)
basic
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B)
acidic
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C)
neutral
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D)
amphoteric
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question_answer 67) Nitrogen combines with hot magnesium wire to form:
A)
magnesium nitrate
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B)
magnesium nitride
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C)
magnesium oxide
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D)
nitrosyl chloride
done
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question_answer 68) Lead pipes are not suitable for drinking water because:
A)
lead reacts with air to form litharge
done
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B)
lead reacts with water containing air to form \[Pb{{(OH)}_{2}}\]
done
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C)
a layer of lead dioxide is deposited over pipes
done
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D)
lead forms basic lead carbonate
done
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question_answer 69) Which of the following is not oxidised by\[KMnO_{4}^{-}\]?
A)
\[C{{l}^{-}}\]
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B)
\[{{I}^{-}}\]
done
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C)
\[B{{r}^{-}}\]
done
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D)
\[{{F}^{-}}\]
done
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question_answer 70) The chief component of cement is:
A)
\[Si{{O}_{2}}\]
done
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B)
\[CaO\]
done
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C)
\[A{{l}_{2}}{{O}_{3}}\]
done
clear
D)
none of these
done
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question_answer 71) Which metal displace hydrogen from acids?
A)
\[Hg\]
done
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B)
\[Ca\]
done
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C)
\[Zn\]
done
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D)
\[Al\]
done
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question_answer 72) The ionic carbide is:
A)
\[ZnC\]
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B)
\[SiC\]
done
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C)
\[Ca{{C}_{2}}\]
done
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D)
\[TiC\]
done
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question_answer 73) The most dangerous reaction of an acid is with the metal:
A)
\[Al\]
done
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B)
\[K\]
done
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C)
\[Fe\]
done
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D)
\[Zn\]
done
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question_answer 74) In which of the following compounds, the central atom has not completed octet?
A)
\[BeC{{l}_{2}}\]
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B)
\[C{{H}_{4}}\]
done
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C)
\[NaCl\]
done
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D)
\[{{N}_{2}}\]
done
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question_answer 75) Which set has the same number of unpaired electrons in their ground state?
A)
\[C{{l}^{-}},F{{e}^{3+}},C{{r}^{3+}}\]
done
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B)
\[N{{a}^{+}},M{{g}^{2+}},Al\]
done
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C)
\[Na,P,Cl\]
done
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D)
\[N,P,V\]
done
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question_answer 76) Uranium \[{}_{92}{{U}^{238}}\]decays into a stable isotope of:
A)
\[Np\]
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B)
\[Pb\]
done
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C)
\[Rn\]
done
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D)
\[Ra\]
done
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View Answer play_arrow
question_answer 77) Artificial radioactivity was discovered by:
A)
Madame Curie
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B)
Wilson
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C)
Rutherford
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D)
Soddy
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question_answer 78) The de-Broglie wavelength associated with a material particle is:
A)
directly proportional to its energy
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B)
directly proportional to momentum
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C)
inversely proportional to its energy
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D)
inversely proportional to momentum
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question_answer 79) V versus T curves, at constant pressure \[{{P}_{1}}\] and \[{{P}_{2}}\] for an ideal gas are shown in figure. Which statement is correct?
A)
\[{{P}_{1}}<{{P}_{2}}\]
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B)
\[{{P}_{1}}>{{P}_{2}}\]
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C)
\[{{P}_{1}}={{P}_{2}}\]
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D)
all of the above are correct
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question_answer 80) As a result of osmosis, the volume of concentrate solution:
A)
increases
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B)
decreases
done
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C)
remains constant
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D)
first increase and then decrease
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question_answer 81) The pH of a 0.01 M solution of a weak acid having degree of dissociation 12.5% is:
A)
5.623
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B)
2.903
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C)
4.509
done
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D)
3.723
done
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question_answer 82) Which of the following is a Buffer solution?
A)
\[NaOH+NaCl\]
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B)
\[KOH+KN{{O}_{3}}\]
done
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C)
\[C{{H}_{3}}COOH+C{{H}_{3}}COONa\]
done
clear
D)
all of the above
done
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question_answer 83) Equilibrium concentration of \[HI,\,\,{{I}_{2}}\] and \[{{H}_{2}}\]are 0.7, 0.1 and 0.1 M respectively. The value of equilibrium constant for the reaction, \[{{H}_{2}}+{{I}_{2}}\rightleftharpoons 2HI\] is:
A)
36
done
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B)
49
done
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C)
0.49
done
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D)
0.36
done
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View Answer play_arrow
question_answer 84) The activation energy for a reaction is 9.0 kcal/mol. The increase in the rate constant when its temperature is increased from 298 K to 308 K is:
A)
63%
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B)
50%
done
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C)
100%
done
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D)
10%
done
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question_answer 85) The ratio of energy of photon of \[3000\,\overset{\text{o}}{\mathop{\text{A}}}\,\] and \[6000\,\overset{\text{o}}{\mathop{\text{A}}}\,\] wavelength radiation is:
A)
2
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B)
1/2
done
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C)
4
done
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D)
1/4
done
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question_answer 86) According to Le Chateliers principle, an increasing temperature of an endothermic reaction at equilibrium, what will happen?
A)
Heat will evolve
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B)
Reaction will proceed backward
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C)
Reaction will proceed forward
done
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D)
None of the above
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question_answer 87) Heat of neutralisation of the acid-base reaction is 57.32 kJ for:
A)
\[HN{{O}_{3}}+LiOH\]
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B)
\[HCOOH+KOH\]
done
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C)
\[HCl+N{{H}_{4}}OH\]
done
clear
D)
\[C{{H}_{3}}COOH+NaOH\]
done
clear
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question_answer 88) Joule Thomson expansion is:
A)
isobaric
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B)
isothermal
done
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C)
iso-enthalpic
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D)
iso-entropic
done
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question_answer 89) The co-ordination number of bcc crystal is:
A)
8
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B)
6
done
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C)
4
done
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D)
2
done
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question_answer 90) What is the pH for a neutral solution at the body temperature\[\left( 38{}^\circ C \right)\]?
A)
7.2
done
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B)
14.0
done
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C)
6.8
done
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D)
6.0
done
clear
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question_answer 91) For a reversible reaction, \[{{N}_{2}}+3{{H}_{2}}\rightleftharpoons 2N{{H}_{3}},\] \[{{K}_{c}}\]is \[2.37\times {{10}^{-3}}.\] If at equilibrium, \[[{{N}_{2}}]=2M,\,\,[{{H}_{2}}]=3M,\] the concentration of\[N{{H}_{3}}\]is:
A)
0.00358 M
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B)
0.0358 M
done
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C)
3.58 M
done
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D)
0.358 M
done
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question_answer 92) The volume of a gas is 100 ml at \[100{}^\circ C\]. If the pressure is kept constant, at what temperature will the gas have a volume of 200ml?
A)
\[50{}^\circ C\]
done
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B)
\[473{}^\circ C\]
done
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C)
\[446{}^\circ C\]
done
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D)
\[200{}^\circ C\]
done
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View Answer play_arrow
question_answer 93) Which solution has the maximum pH?
A)
\[1\,M\text{-}KOH\]
done
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B)
\[10\,M\,{{H}_{2}}S{{O}_{4}}\]
done
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C)
Chlorine-water
done
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D)
Water containing carbon-dioxide
done
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View Answer play_arrow
question_answer 94) A reaction of first-order completed 90% in 90 minutes, hence it is completed 50% in approximately:
A)
50 minutes
done
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B)
54 minutes
done
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C)
27 minutes
done
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D)
62 minutes
done
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View Answer play_arrow
question_answer 95) Chlorobenzene is prepared commercially by:
A)
Raschig process
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B)
Wurtz-Fittig reaction
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C)
Friedel-Crafts reaction
done
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D)
Grignard reaction
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question_answer 96) A mixture of camphor and benzoic acid can be easily separated by:
A)
fractional crystallization
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B)
chemical method
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C)
extraction with solvent
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D)
sublimation
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question_answer 97) Butyne-1 and butyne-2 can be distinguished by:
A)
Benedicts reagent
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B)
alkaline \[KMn{{O}_{4}}\]
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C)
ammonical cuprous chloride
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D)
bromine water
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question_answer 98) Isopropyl alcohol on passing over heated copper at \[300{}^\circ C\] gives:
A)
acetone
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B)
acetaldehyde
done
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C)
propylene
done
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D)
none of these
done
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question_answer 99) Which of the following reacts with \[COC{{l}_{2}}\] to give phenyl isocyanate?
A)
Chlorobenzene
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B)
Nitrobenzene
done
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C)
Aminophenol
done
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D)
Aniline
done
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question_answer 100) \[{{o}^{-}},\,{{m}^{-}}\] and p-xylenes, on oxidation with acidic \[KMn{{O}_{4}}\] gives:
A)
terphthalic acid
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B)
phthalic acid
done
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C)
isophthalic acid
done
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D)
all of these
done
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question_answer 101) In the case of homologous series of alkanes, which one of the following statements is incorrect?
A)
The members of the series are isomers of each other
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B)
The members of the series have similar chemical properties
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C)
The members can be prepared by some common methods
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D)
The members have the general formula \[{{C}_{n}}{{H}_{2n+2}}\]
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question_answer 102) Carbanions initiates:
A)
substitution reactions
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B)
addition reactions
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C)
both (a) and (b)
done
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D)
none of the above
done
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question_answer 103) 1, 3-butadiene has:
A)
\[sp\] and \[s{{p}^{2}}\text{-}\]hybridised C-atoms
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B)
\[sp\] \[s{{p}^{2}}\] and \[s{{p}^{3}}\text{-}\]hybridised C-atoms
done
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C)
only \[s{{p}^{2}}\text{-}\] hybridised C-atoms
done
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D)
only \[sp\]- hybridised C-atoms
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View Answer play_arrow
question_answer 104) When HCHO is treated with \[{{C}_{6}}{{H}_{5}}CHO\] in presence of KOH, the product are:
A)
\[HCOONa\] and \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}OH\]
done
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B)
\[C{{H}_{3}}OH\]and \[{{C}_{6}}{{H}_{5}}COONa\]
done
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C)
\[C{{H}_{3}}OH\]and \[{{C}_{6}}{{H}_{5}}COONa\]
done
clear
D)
\[{{C}_{6}}{{H}_{5}}C{{H}_{2}}OH\]and \[{{C}_{6}}{{H}_{5}}COONa\]
done
clear
View Answer play_arrow
question_answer 105) Vinyl chloride reacts with \[HCl\] to form:
A)
1, 1-dichloro ethane
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B)
1, 2-dichloro ethane
done
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C)
tetrachloro ethylene
done
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D)
mixtures of 1, 2 and 1, 1-dichloro ethane
done
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question_answer 106) What is the end product in the following reaction? \[{{C}_{2}}{{H}_{5}}N{{H}_{2}}\xrightarrow{HN{{O}_{2}}}A\xrightarrow{PC{{l}_{5}}}B\xrightarrow{N{{H}_{3}}}C\]
A)
Methyl amine
done
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B)
Acetamide
done
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C)
Ethyl cyanide
done
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D)
Ethyl amine
done
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View Answer play_arrow
question_answer 107) What is obtained, when aniline is sulphonated?
A)
Anthranilic acid
done
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B)
o-amino benzene sulphonic acid
done
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C)
Sulphanilic acid
done
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D)
m-amino benzene sulphonic acid
done
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View Answer play_arrow
question_answer 108) The product obtained, when benzene reacts with an alkyl chloride \[(RCl)\] in presence of anhydrous \[AlC{{l}_{3}}\]:
A)
\[{{C}_{6}}{{H}_{5}}AlC{{l}_{3}}\]
done
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B)
\[{{C}_{6}}{{H}_{5}}Cl\]
done
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C)
no reaction takes place
done
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D)
\[{{C}_{6}}{{H}_{5}}R\]
done
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View Answer play_arrow
question_answer 109) \[C{{H}_{3}}C{{H}_{2}}COOH\xrightarrow[Fe]{C{{l}_{2}}}X\xrightarrow{alc.\,KOH}Y,\]the compound \[Y\] is:
A)
\[C{{H}_{2}}==CHCOOH\]
done
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B)
\[C{{H}_{2}}CHClCOOH\]
done
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C)
\[C{{H}_{3}}C{{H}_{2}}CN\]
done
clear
D)
\[C{{H}_{3}}C{{H}_{2}}OH\]
done
clear
View Answer play_arrow
question_answer 110) Which of the following reactions, follows free-radical mechanism?
A)
Addition of HBr to alkene
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B)
Friedel-Craffs reaction
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C)
Sandmeyer reaction
done
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D)
None of the above
done
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View Answer play_arrow
question_answer 111) The correct IUPAC name of \[H--\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,--C{{H}_{2}}C{{H}_{2}}COOH\]is:
A)
2-carboxy ethanol
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B)
4-formyl butanoic acid
done
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C)
3-formyl propanoic acid
done
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D)
3-keto propanoic acid
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View Answer play_arrow
question_answer 112) An element X, with the electronic configuration \[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}\]would be expected to form the chloride with the formula:
A)
\[XC{{l}_{3}}\]
done
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B)
\[XC{{l}_{2}}\]
done
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C)
\[XCl\]
done
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D)
\[{{X}_{2}}Cl\]
done
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View Answer play_arrow
question_answer 113) On heating \[NaCl+{{K}_{2}}C{{r}_{2}}{{O}_{7}}+\] cone. \[{{H}_{2}}S{{O}_{4}},\] the gas comes out is:
A)
\[{{O}_{2}}\]
done
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B)
\[C{{l}_{2}}\]
done
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C)
\[CrOC{{l}_{2}}\]
done
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D)
\[Cr{{O}_{2}}C{{l}_{2}}\]
done
clear
View Answer play_arrow
question_answer 114) The change in optical rotation with time, of freshly prepared solution of sugar is known as:
A)
mutor rotation
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B)
rotatory motion
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C)
inversion
done
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D)
specific rotation
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question_answer 115) Night blindness is caused by the deficiency of:
A)
ascorbic acid
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B)
Calciferol
done
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C)
retionol
done
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D)
tocopherol
done
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question_answer 116) RNA does not contain:
A)
ribose sugar
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B)
phosphate group
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C)
pyridine base
done
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D)
none of these
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question_answer 117) The pH of blood is:
A)
\[\approx 2\]
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B)
\[<7\]but \[>6\]
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C)
\[>7\] but \[<8\]
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D)
equal to 7
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question_answer 118) The noble metal is:
A)
\[Na\]
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B)
\[Ag\]
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C)
\[Hf\]
done
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D)
\[Pt\]
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question_answer 119) The compound that is not a Lewis acid, is
A)
\[B{{F}_{3}}\]
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B)
\[BaC{{l}_{2}}\]
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C)
\[AlC{{l}_{3}}\]
done
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D)
\[SnC{{l}_{3}}\]
done
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question_answer 120) The laws of electrolysis, were given by:
A)
Nernst
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B)
M. Berthelot
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C)
M. Faraday
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D)
Aristotle
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question_answer 121) Hormones of hypothalamus are called:
A)
angiotensis
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B)
trophic hormones
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C)
growth hormones
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D)
regulatory hormones
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question_answer 122) The phenomenon of fertilization was first perceived by:
A)
Hertwig
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B)
Robert Hooke
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C)
Leeuwenhoek
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D)
Weismann
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question_answer 123) The mammalian follicle in ovary was first described by:
A)
Fabricius
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B)
Robert Hooke
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C)
Von Baer
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D)
de Graaf
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question_answer 124) Which one of the following phenomena of hereditary characters was not known to Mendel?
A)
Segregation of alleles
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B)
Linkage
done
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C)
Dominant and recessive traits
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D)
Independent assortment
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question_answer 125) In alkaptonuria:
A)
the urine turns black
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B)
the pathway of phenylalanine metaboIism is blocked
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C)
two genes for the trait are inherited
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D)
all of the above
done
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question_answer 126) Enzyme necessary for transcription is:
A)
Endonuclease
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B)
RNA polymerase
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C)
DNA polymerase
done
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D)
RNA ase
done
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question_answer 127) Dubois in 1891 found the fossil of Java ape man. It is:
A)
Homo sapiens
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B)
Homo rhodesiensis
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C)
Pithecanthropus erectus
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D)
Sinanthropuspe kinensis
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question_answer 128) Sesame oil is obtained from the seeds of:
A)
Ricinuscommunis
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B)
Sesamumindicum
done
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C)
Carthamustinctorius
done
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D)
Brassica campestris
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question_answer 129) Seshania rostrata is a bio-fertilizer crop. It contains:
A)
root nodules
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B)
stem nodules
done
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C)
both (a) and (b)
done
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D)
none of the above
done
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question_answer 130) Cell in the neck of archegonia of Dryopteris are in how many longitudinal orvertical rows?
A)
2
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B)
8
done
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C)
4
done
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D)
6
done
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question_answer 131) Which one of the following is a fresh water sponge?
A)
Euplectella
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B)
Spongilla
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C)
Euspongia
done
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D)
Sycon
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question_answer 132) Hepatic caecae in cockroach are derived from:
A)
crop
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B)
ileum
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C)
midgut
done
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D)
gizzard
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question_answer 133) In 1980, F. Sanger was awarded Nobel prize second time to be shared by Gilbert for their work on:
A)
genetic mapping
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B)
determining the base sequences of DNA of a virus
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C)
determining the structure of DNA
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D)
determing amino acid sequence of insulin
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question_answer 134) Some of the species of Selaginella perennate by means of:
A)
bulbils
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B)
stem tubers
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C)
both (a) and (b)
done
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D)
none of these
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question_answer 135) A sponge differs from all other matazoans in having:
A)
nerve cells
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B)
absence of blood
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C)
numerous mouthlets and one exit
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D)
none of these
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question_answer 136) What is the name of class to which pearl oyster belongs?
A)
Cephalopoda
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B)
Pelecypoda
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C)
Gastropoda
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D)
Scapoda
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question_answer 137) Male cockroach can be identified from the female by the presence of
A)
anal styles
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B)
wingless body
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C)
elongated abdomen
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D)
long antennae
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question_answer 138) The distinguishing feature of all chordates is:
A)
a water vascular system
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B)
an elastic rod (notochord)
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C)
achitinous exoskeleton
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D)
a ventrally placed nerve cord
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question_answer 139) Which of the birds cannot fly?
A)
Strok
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B)
Emu
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C)
Duck
done
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D)
Peacock
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question_answer 140) An obligate parasite is one which:
A)
always requires a living host
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B)
is usually a saprophyte but can become a parasite
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C)
always requires dead organic matter to survive
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D)
is usually a parasite but can become a Saprophyte
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question_answer 141) Fibrous roots develop in maize from:
A)
upper internodes
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B)
upper nodes
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C)
lower nodes
done
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D)
lower internodes
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question_answer 142) A tissue whose living cells form the mechanical tissue of activity growing organs and whose cell walls show cellulosic unlignified thickenings often at the corners of its cells is called:
A)
parenchyma
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B)
chlorenchyman
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C)
collenchyma
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D)
sclerenchyma
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question_answer 143) Eustele is present in:
A)
algae
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B)
dicots
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C)
bryophytes
done
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D)
pteridophytes
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question_answer 144) Which of the following plants keep its stomata open during the night and closed during the day?
A)
Hibiscus
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B)
Cactus
done
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C)
Ivy
done
clear
D)
Water lily
done
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question_answer 145) Which of the following is a component of middle lamella in plant cells?
A)
Fe
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B)
K
done
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C)
\[Ca\]
done
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D)
Mg
done
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question_answer 146) The source of \[{{O}_{2}}\] liberated in photo-synthesis is:
A)
carbon dioxide
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B)
water
done
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C)
alcohol
done
clear
D)
none of these
done
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question_answer 147) Vegetables are rich in:
A)
carbohydrates and fats
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B)
fats and vitamins
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C)
proteins and vitamins
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D)
minerals and vitamins
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question_answer 148) Bacillus Calmette Guerine (BCG) vaccineis anti:
A)
tuberculosis
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B)
polio
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C)
pneumonia
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D)
emphysema
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question_answer 149) A branch of botany concerned with the classification, nomenclature and identification of plants is:
A)
Physiology
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B)
Morphology
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C)
Ecology
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D)
Systematic Botany
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question_answer 150) Reducing sugars possesses:
A)
ketonic group
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B)
aldehyde group
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C)
carboxylic group
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D)
both a and b
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question_answer 151) FAD or FMN is a coenzyme, which vitamin is incorporated in its structure:
A)
vitamin C
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B)
vitamin \[{{B}_{6}}\]
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C)
vitamin \[{{B}_{2}}\]
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D)
vitamin \[{{B}_{1}}\]
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question_answer 152) Who among the following scientists developed eytochemical technique for the presence of DNA?
A)
Johannsen
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B)
Hammerling
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C)
McClintock
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D)
Feulgen and Rossenbeck
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question_answer 153) Ribosomes of bacteria, mitochondria and chloroplasts are of:
A)
30S type
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B)
70S type
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C)
80S type
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D)
50S type
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question_answer 154) When yeast ferments glucose the products are:
A)
ethanol and carbondioxide
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B)
methanol and \[C{{O}_{2}}\]
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C)
water and carbondioxide
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D)
ethanol and water
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question_answer 155) Anastral mitosis is the characteristic of:
A)
lower animals
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B)
higher animals
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C)
higher plants
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D)
all living organisms
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question_answer 156) The genetic material of bacteria is present as:
A)
spherosome
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B)
genophore
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C)
lomasomes
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D)
mesosome
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question_answer 157) Which of the following is an edible fungus?
A)
Neurospora
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B)
Penicillium
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C)
Agaricus
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D)
Rhizopus
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question_answer 158) Heterotrichous habit is shown by:
A)
Ulothrix
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B)
Oedogonium
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C)
Chalmydomonas
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D)
Stigeoclonium
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question_answer 159) Avena curvature test is used for biosynthesis of:
A)
auxin
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B)
gibberellin
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C)
ethylene
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D)
cytokinin
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question_answer 160) Largest ecosystem of the world are:
A)
forests
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B)
oceans
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C)
great lakes
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D)
grasslands
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question_answer 161) In a pond if there is too much wastage, then the BOD of pond will:
A)
remain same
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B)
decrease
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C)
increase
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D)
both (b) and (c)
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question_answer 162) Narcotic and soothing properties of tobacco is due to or harmful alkaloid contained in the leaves of tobacco is:
A)
codeine
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B)
nicotine
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C)
aconite
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D)
caffeine
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question_answer 163) Richest source of vitamins C is:
A)
lemon
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B)
orange
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C)
Emblica officinalis (Amla)
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D)
Capsicum fruit escence
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question_answer 164) Trypanosomiasis is transmitted by:
A)
tse-tse fly
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B)
sand fly
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C)
louse
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D)
may fly
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question_answer 165) Monocytes and neutrophils are important cells participating in:
A)
antibody production
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B)
passive immunity
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C)
phagocytosis
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D)
perforin production
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question_answer 166) X-rays were discovered in the year:
A)
1929
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B)
1906
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C)
1895
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D)
1870
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question_answer 167) The term antibiotic was coined by:
A)
Louis Pasteur
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B)
Alexander Flemming
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C)
Edward Jenner
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D)
Selman Waskman
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question_answer 168) Which of the following protein is present in Cartilage?
A)
Actine
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B)
Chondrin
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C)
Casein
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D)
Ostein
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question_answer 169) In a spadix inflorescence the spa the encloses a:
A)
umbel
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B)
biparous cyme
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C)
catkin
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D)
spike
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question_answer 170) Gynobasic style is found in:
A)
Centella
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B)
Colocasia
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C)
Ranunculus
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D)
Ocimum
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question_answer 171) A microspore mother cell forms:
A)
an ovule
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B)
pollen grains
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C)
embryosac
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D)
a pollen sac
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question_answer 172) The movement of auxin is largely:
A)
acropetal
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B)
centripetal
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C)
basipetal
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D)
both (a) and (c)
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question_answer 173) Cartilage is produced by:
A)
chondroblasts
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B)
fibroblasts
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C)
epithelium
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D)
osteoblasts
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question_answer 174) When coenzyme is combined with apo-enzyme it is called:
A)
vitamin A
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B)
holoenzyme
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C)
subtrate enzyme complex
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D)
cofactor
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question_answer 175) Which of the following events takes place during inspiration in rabbit?
A)
Due to contraction of external inter costal muscles and flattening of diaphragm the volume of thoracic cavity decreases
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B)
The abdominal muscles contract
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C)
Due to contraction of external inter costal muscles and flattening of diaphragm the volume of thoracic cavity increases
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D)
The internal intercostal muscles relax
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question_answer 176) Haematocrit is related with:
A)
counting number of RBC
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B)
oxygen carrying capacity of haemoglobin When a sample of blood is rendered non coagulable by adding sodium oxalate and then centrifuged in haematocrit tube. RBCs sediment to the bottom of the tube and the relative volume of RBCs can be read as a percentage of blood volume. This is called Haematocrit value.
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C)
cell volume when packed together
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D)
amount of Hb/100 ml of blood
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question_answer 177) About how many nephrons are there in each kidney of a human:
A)
1, 00, 000
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B)
1, 000
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C)
200
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D)
16
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question_answer 178) Glenoid cavity is present in:
A)
skull of rabbit
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B)
xiphisternum
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C)
pelvic girdle
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D)
pectoral girdle
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question_answer 179) Outermost covering of brain is called as:
A)
gray mater
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B)
pericardium
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C)
pia mater
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D)
duramater
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question_answer 180) The recapitulation theory was proposed by:
A)
E. Haeckel
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B)
Harvey
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C)
Lamarck
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D)
None of these
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question_answer 181) Directions: Find out the miss-spelt word...
A)
trauma
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B)
tinker
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C)
takitum
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D)
turpitude
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question_answer 182) Directions: Find out the miss-spelt word...
A)
synchronize
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B)
simulate
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C)
stimulate
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D)
scoul
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question_answer 183) Directions: Find out the miss-spelt word...
A)
groupie
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B)
gurantee
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C)
gubernatorial
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D)
guard-rail
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question_answer 184) Directions: Find out the miss-spelt word...
A)
loubrow
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B)
loutish
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C)
luminosity
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D)
lumpen
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question_answer 185) Directions: Find out the miss-spelt word...
A)
indefatigable
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B)
indentured
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C)
indicative
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clear
D)
intelligentsia
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question_answer 186) (A) tree (B) the (C) fell (D) The (E) from (F) boy:
A)
DFCEBA
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B)
BACEDF
done
clear
C)
BFCDAE
done
clear
D)
EDACBF
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question_answer 187) (A) grinded (B) to (C) the (D) a (E) train (F) halt:
A)
DEABCF
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B)
DFABCE
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C)
CEABDF
done
clear
D)
FEACBD
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question_answer 188) (A) dejected (B) students (C) lot (D) the (E) a (F) were:
A)
ABFECD
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B)
EACFDB
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C)
DBFEAC
done
clear
D)
ECFDAB
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question_answer 189) (A) convicted (B) court (C) of (D) murder (E) the (F) him:
A)
EDAFCB
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B)
CEDBAF
done
clear
C)
FAEBCD
done
clear
D)
EBAFCD
done
clear
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question_answer 190) (A) vehicle (B) accosted (C) the (D) speeding (E) sergeant (F) the:
A)
FEBCDA
done
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B)
FBACDE
done
clear
C)
CDABFE
done
clear
D)
BFEDAC
done
clear
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question_answer 191) It is now well known that stress 191 up a 192 of body chemicals that eventually 193 your health. Now scientists 194 further findings, It 195 that every time one goes through 196 stress, the bodys stress thermostat gets 197 to a greater 198 Researchers compare this to an allergy once the body is 199 to a substance. It reacts strongly even at a mere 200 of the stuff.
A)
generates
done
clear
B)
brings
done
clear
C)
develops
done
clear
D)
stirs
done
clear
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question_answer 192) It is now well known that stress 191 up a 192 of body chemicals that eventually 193 your health. Now scientists 194 further findings, It 195 that every time one goes through 196 stress, the bodys stress thermostat gets 197 to a greater 198 Researchers compare this to an allergy once the body is 199 to a substance. It reacts strongly even at a mere 200 of the stuff.
A)
flow
done
clear
B)
storm
done
clear
C)
plethora
done
clear
D)
array
done
clear
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question_answer 193) It is now well known that stress 191 up a 192 of body chemicals that eventually 193 your health. Now scientists 194 further findings, It 195 that every time one goes through 196 stress, the bodys stress thermostat gets 197 to a greater 198 Researchers compare this to an allergy once the body is 199 to a substance. It reacts strongly even at a mere 200 of the stuff.
A)
effect
done
clear
B)
destroy
done
clear
C)
ruins
done
clear
D)
affect
done
clear
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question_answer 194) It is now well known that stress 191 up a 192 of body chemicals that eventually 193 your health. Now scientists 194 further findings, It 195 that every time one goes through 196 stress, the bodys stress thermostat gets 197 to a greater 198 Researchers compare this to an allergy once the body is 199 to a substance. It reacts strongly even at a mere 200 of the stuff.
A)
develop
done
clear
B)
report
done
clear
C)
hypothesize
done
clear
D)
relate
done
clear
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question_answer 195) It is now well known that stress 191 up a 192 of body chemicals that eventually 193 your health. Now scientists 194 further findings, It 195 that every time one goes through 196 stress, the bodys stress thermostat gets 197 to a greater 198 Researchers compare this to an allergy once the body is 199 to a substance. It reacts strongly even at a mere 200 of the stuff.
A)
appears
done
clear
B)
signifies
done
clear
C)
propagates
done
clear
D)
shows
done
clear
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question_answer 196) It is now well known that stress 191 up a 192 of body chemicals that eventually 193 your health. Now scientists 194 further findings, It 195 that every time one goes through 196 stress, the bodys stress thermostat gets 197 to a greater 198 Researchers compare this to an allergy once the body is 199 to a substance. It reacts strongly even at a mere 200 of the stuff.
A)
prolonged
done
clear
B)
serious
done
clear
C)
any
done
clear
D)
proper
done
clear
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question_answer 197) It is now well known that stress 191 up a 192 of body chemicals that eventually 193 your health. Now scientists 194 further findings, It 195 that every time one goes through 196 stress, the bodys stress thermostat gets 197 to a greater 198 Researchers compare this to an allergy once the body is 199 to a substance. It reacts strongly even at a mere 200 of the stuff.
A)
alarmed
done
clear
B)
activated
done
clear
C)
reset
done
clear
D)
ready
done
clear
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question_answer 198) It is now well known that stress 191 up a 192 of body chemicals that eventually 193 your health. Now scientists 194 further findings, It 195 that every time one goes through 196 stress, the bodys stress thermostat gets 197 to a greater 198 Researchers compare this to an allergy once the body is 199 to a substance. It reacts strongly even at a mere 200 of the stuff.
A)
level
done
clear
B)
program
done
clear
C)
energy
done
clear
D)
sensitivity
done
clear
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question_answer 199) It is now well known that stress 191 up a 192 of body chemicals that eventually 193 your health. Now scientists 194 further findings, It 195 that every time one goes through 196 stress, the bodys stress thermostat gets 197 to a greater 198 Researchers compare this to an allergy once the body is 199 to a substance. It reacts strongly even at a mere 200 of the stuff.
A)
alert
done
clear
B)
allergetic
done
clear
C)
sensitized
done
clear
D)
immune
done
clear
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question_answer 200) It is now well known that stress 191 up a 192 of body chemicals that eventually 193 your health. Now scientists 194 further findings, It 195 that every time one goes through 196 stress, the bodys stress thermostat gets 197 to a greater 198 Researchers compare this to an allergy once the body is 199 to a substance. It reacts strongly even at a mere 200 of the stuff.
A)
disturbance
done
clear
B)
whiff
done
clear
C)
addition
done
clear
D)
smell
done
clear
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