question_answer 1) The electrical permittivity and magnetic permeability of free space are respectively \[{{\varepsilon }_{0}}\]and \[{{\mu }_{0}}\]The corresponding value for a medium is :
A)
\[{{\tan }^{-1}}(5)\]
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B)
\[{{\tan }^{-1}}\left( \frac{1}{5} \right)\]
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C)
\[{{\sin }^{-1}}\left( \frac{1}{5} \right)\]
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D)
\[2.2\times {{10}^{3}}N\]
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question_answer 2) The frequency of a light ray is \[3.2\times {{10}^{3}}N\]Hz. Its frequency when it propagates in a medium of refractive index 1.5, will be :
A)
\[4.2\times {{10}^{3}}N\]
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B)
\[5.2\times {{10}^{3}}N\]
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C)
\[{{10}^{2}}\]
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D)
\[{{10}^{-2}}\]
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question_answer 3) In a Youngs experiment, if the distance between the slits is halved and the distance of screen from the slit is doubled, the fringe width will be :
A)
four times
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B)
doubled
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C)
halved
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D)
same
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question_answer 4) The magnetic moment of a magnet of length 10 cm and pole strong the 4.0 Am will be :
A)
\[{{10}^{-3}}\]
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B)
\[{{10}^{-4}}\]
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C)
\[J\]
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D)
\[\frac{I}{\omega }\]
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question_answer 5) Two point charges \[I{{\omega }^{2}}\]repel each other by a force of \[I\omega \]. If each of them is given an additional charge \[4\sqrt{3}\], the force between them will be :
A)
\[\frac{T}{\sqrt{3}}\]N(attractive)
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B)
\[\frac{T}{3}\] (attractive)
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C)
\[\frac{\sqrt{3}}{2}T\] (repulsive)
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D)
\[\sqrt{3}T\](attractive)
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question_answer 6) A man of weight 80 kg is standing in an elevator which is moving with an acceleration of 6 \[1.6\times {{10}^{-19}}\]in up ward direction. The apparent weight of the man will be (g = 10 \[1.12\times {{10}^{-19}}\] ) :
A)
1480 N
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B)
1280 N
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C)
1380 N
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D)
none of these
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question_answer 7) The power of pump, which can pump 200 kg of water to a height of 50 m in 10sec, will be :
A)
\[1.76\times {{10}^{-19}}\]
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B)
\[{{T}_{1}}k\]
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C)
\[{{T}_{2}}k\]
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D)
\[\mu \]
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question_answer 8) What is the value of linear velocity, if angular velocity is \[3\overset{\hat{\ }}{\mathop{i}}\,-4\overset{\hat{\ }}{\mathop{j}}\,+\overset{\hat{\ }}{\mathop{k}}\,\] and distance from the centre is \[5\overset{\hat{\ }}{\mathop{i}}\,-6\overset{\hat{\ }}{\mathop{j}}\,+6\overset{\hat{\ }}{\mathop{k}}\,\]
A)
\[6\overset{\hat{\ }}{\mathop{i}}\,+6\overset{\hat{\ }}{\mathop{j}}\,-3\overset{\hat{\ }}{\mathop{k}}\,\]
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B)
\[18\overset{\hat{\ }}{\mathop{i}}\,+13\overset{\hat{\ }}{\mathop{j}}\,-2\overset{\hat{\ }}{\mathop{k}}\,\]
done
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C)
\[4\overset{\hat{\ }}{\mathop{i}}\,-13\overset{\hat{\ }}{\mathop{j}}\,+6\overset{\hat{\ }}{\mathop{k}}\,\]
done
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D)
\[6\overset{\hat{\ }}{\mathop{i}}\,-2\overset{\hat{\ }}{\mathop{j}}\,+8\overset{\hat{\ }}{\mathop{k}}\,\]
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question_answer 9) Magnetic permeability is maximum for :
A)
paramagnetic substances
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B)
ferromagnetic substances
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C)
diamagnetic substances
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D)
all of these
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question_answer 10) An electron moves in a circular path of radius 15 cm in a magnetic field or\[2316.4\overset{0}{\mathop{A}}\,,0.1\times {{10}^{7}}{{m}^{-1}}\] tesla. The speed of electron will be :
A)
\[10\times {{10}^{5}}kWh\]
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B)
\[4\times {{10}^{-5}}kg\]
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C)
\[3\times {{10}^{-5}}kg\]
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D)
none of these
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question_answer 11) The effective length of a magnet is 31.4 cm and its pole strength is 0.5 Am. The magnetic moment, if it is bent in the form of a semicircle will be :
A)
0.1 \[5\times {{10}^{-5}}kg\]
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B)
0.01 \[8\times {{10}^{-5}}kg\]
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C)
0.2 \[{{n}^{2}}\]
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D)
1.2 \[\frac{1}{{{n}^{2}}}\]
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question_answer 12) A magnet makes 30 oscillations per minute in the earths magnetic field. If the magnetic field is doubled. The period of oscillation of magnet is :
A)
\[{{n}^{3}}\]
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B)
2 s
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C)
\[\frac{1}{n}\]
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D)
\[{{10}^{7}}N/{{m}^{2}}\]
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question_answer 13)
Four capacitors are connected in a circuit as shown in figure. The effective capacitance in fi F between P and Q will be :
A)
5 \[2.5\times {{10}^{6}}N/{{m}^{2}}\]
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B)
10 \[{{s}^{2}}\]
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C)
2 \[{{s}^{2}}\]
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D)
7.5 \[{{s}^{2}}\]
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question_answer 14) If you are provided three resistances 2\[8.2\times {{10}^{6}}\], 3\[h=6.6\times {{10}^{-34}}Js\] and 6\[c=3\times {{10}^{8}}m/s\]. How will you connect them so as to obtain the equivalent resistance of 4\[e=1.6\times {{10}^{-19}}C\]:
A)
done
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B)
done
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C)
done
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D)
None of these
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question_answer 15) When the resistance of 9\[\overset{0}{\mathop{A}}\,\] is connected at the ends of a battery, its potential difference decreases from 40 volt to 30 volt. The internal resistance of the battery is:
A)
6\[\overset{0}{\mathop{A}}\,\]
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B)
3\[\overset{0}{\mathop{A}}\,\]
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C)
9\[\overset{0}{\mathop{A}}\,\]
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D)
15\[\left[ {{M}^{0}}{{L}^{0}}T{{A}^{0}} \right]\]
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question_answer 16) When a shunt of resistance 12\[\left[ M{{L}^{0}}T{{A}^{0}} \right]\] is connected with a galvanometer, its deflection reduces from 50 div to 10 div. The resistance of the coil of galvanometers :
A)
48\[\left[ M{{L}^{0}}T{{A}^{2}} \right]\]
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B)
24\[\left[ M{{L}^{0}}T{{A}^{-2}} \right]\]
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C)
56\[y=5\sin 2\pi \left( \frac{t}{0.04}-\frac{x}{40} \right)\]
done
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D)
36\[c=\frac{1}{\sqrt{{{\mu }_{0}}{{\varepsilon }_{0}}}}\]
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question_answer 17) When the current flowing in a circular coil is doubled and the number of turns of the coil in it is halved, the magnetic field at its centre will become :
A)
four times
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B)
same
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C)
half
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D)
double
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question_answer 18) A proton is moving with a velocity v is subjected to an electric field E and magnetic field B. The proton will remain moving without any deflection, if :
A)
E and B both are parallel to v
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B)
E is parallel to v but perpendicular to B
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C)
E is perpendicular to B
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D)
E, v and B are mutually perpendicular to each other and \[\upsilon =\frac{1}{\sqrt{\mu \varepsilon }}\]
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question_answer 19) In an electric heater 4 amp current passes for 1 minute at potential difference of 250 volt, the power of heater and energy consumed will be respectively :
A)
1 kvs 60 kj
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B)
0.5 kw, 30 kj
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C)
10 kw, 600 kj
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D)
none of these
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question_answer 20) Magnetic flux in a circuit containing a coil of resistance 2\[\upsilon =\frac{1}{\sqrt{\mu \varepsilon }}\] changes from 2.0 wb to 10 wb in 0.2 sec. The charge passed through the coil in this time is :
A)
0.8 C
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B)
1.0 C
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C)
5.0 C
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D)
4.0 C
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question_answer 21) In the DC circuit, the current is expressed as\[\sqrt{\frac{{{\mu }_{0}}{{\varepsilon }_{0}}}{\mu \varepsilon }}\]. In this circuit the current rises from zero to peak value in time :
A)
\[\sqrt{\frac{{{\mu }_{0}}{{\varepsilon }_{0}}}{\mu \varepsilon }}\]
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B)
\[\sqrt{\frac{\mu \varepsilon }{{{\mu }_{0}}{{\varepsilon }_{0}}}}\]
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C)
\[\sqrt{\frac{{{\mu }_{0}}{{\varepsilon }_{0}}}{\mu \varepsilon }}\]
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D)
\[6\times {{10}^{16}}\]
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question_answer 22) In a LR circuit \[1.67\times {{10}^{14}}Hz\]and \[9.10\times {{10}^{14}}Hz\]. If the circuit has an alternating emf of 220 volt 50 cycles per sec. The impedance and current in the circuit will be :
A)
50\[6\times {{10}^{14}}Hz\], 4.4A
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B)
40.4\[4\times {{10}^{14}}Hz\], 5A
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C)
3.07\[0.4A{{m}^{2}}\], 6.0A
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D)
11.4\[1.6A{{m}^{2}}\], 17.5A
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question_answer 23) An electron initially at rest, is accelerated through a potential difference of 200 volt, so that it acquires a velocity\[20A{{m}^{2}}\] The value of e/m of electron will be :
A)
\[8.0A{{m}^{2}}\]
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B)
\[3\times {{10}^{-6}}C\]
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C)
\[6\times {{10}^{-3}}N\]
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D)
none of these
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question_answer 24) Work function of lithium and copper are respectively 2.3 eV and 4.0 eV. which one of the metal will be useful for the photoelectric cell working with visible light? \[-6\times {{10}^{6}}C,\]
A)
Lithium
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B)
Copper
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C)
Both
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D)
None
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question_answer 25) A proton and an \[\text{ }\!\!\alpha\!\!\text{ -}\]particle are accelerated through the same potential difference. The ratio of de-Broglie wavelength of proton to the de-Broglie wavelength of alpha particle will be :
A)
\[2.4\times {{10}^{-3}}\]
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B)
1 : 2
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C)
2 :1
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D)
1 : 1
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question_answer 26) The heat of 110 J is added to a gaseous system whose internal energy is 40 J, then the amount of external work done will be :
A)
140 J
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B)
70 J
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C)
40 J
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D)
none of these
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question_answer 27) Two rods having thermal conductivity in the ratio of 5 : 3 having equal lengths and equal cross-sectional area are joined by face to face. If the temperature of the free end of the first rod is \[100{}^\circ C\] and free end of second rod is \[20{}^\circ C\]. Then the temperature of the junction is :
A)
\[70{}^\circ C\]
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B)
\[50{}^\circ C\]
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C)
\[60{}^\circ C\]
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D)
\[90{}^\circ C\]
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question_answer 28) A bomber plane is moving horizontally with a speed of 500 m/s and a bomb released from it, strikes the ground in 10 sec. Angle at which the bomb strikes the ground is, (g = 10 \[2.4\times {{10}^{-9}}N\]) :
A)
\[1.5\times {{10}^{-3}}N\]
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B)
\[1.5\times {{10}^{-3}}N\]
done
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C)
\[m/{{s}^{2}}\]
done
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D)
\[m/{{s}^{2}}\]
done
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question_answer 29) The average force necessary to stop a bullet of 20 kg at speed of 250 m/s as it penetrates wood to a distance of 12 cm is :
A)
\[10\times {{10}^{3}}watt\]
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B)
\[20\times {{10}^{3}}watt\]
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C)
\[4\times {{10}^{3}}watt\]
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D)
\[6\times {{10}^{3}}watt\]
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question_answer 30) A black body is heated from \[27{}^\circ C\] to \[927{}^\circ C\]. The ratio of radiation emitted will be :
A)
1 : 256
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B)
1 : 64
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C)
1 : 4
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D)
1 : 16
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question_answer 31) Density of substance at \[0{}^\circ C\] is 10 g/cc and at \[100{}^\circ C\], its density is 9.7 g/cc. The coefficient of linear expansion of the substance is :
A)
\[3\hat{i}-4\hat{j}+\hat{k}\]
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B)
\[5\hat{i}-6\hat{j}+6\hat{k}\]
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C)
\[6\hat{i}-6\hat{j}+3\hat{k}\]
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D)
\[18\hat{i}-13\hat{j}+2\hat{k}\]
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question_answer 32) Angular momentum \[4\hat{i}-13\hat{j}+6\hat{k}\]of body with mass moment of inertia I and angular velocity ad/sec is equal to :
A)
\[6\hat{i}-2\hat{j}+8\hat{k}\]
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B)
\[4\times {{10}^{-4}}\]
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C)
\[1.07\times {{10}^{7}}m/s\]
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D)
none of these
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question_answer 33) The horizontal range of projectile is\[0.53\times {{10}^{7}}m/s\] times of its maximum height. The angle of projection will be :
A)
\[40{}^\circ C\]
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B)
\[90{}^\circ C\]
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C)
\[30{}^\circ C\]
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D)
\[45{}^\circ C\]
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question_answer 34) At what temperature, the speed of sound in air will become double of its value at \[27{}^\circ C\] :
A)
\[927{}^\circ C\]
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B)
\[327{}^\circ C\]
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C)
\[54{}^\circ C\]
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D)
\[627{}^\circ C\]
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question_answer 35) The efficiency of Carnots engine operating between reservoirs, maintained at temperatures \[27{}^\circ C\] and \[-123{}^\circ C\], is :
A)
50%
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B)
24%
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C)
0.75%
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D)
0.4%
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question_answer 36) The period of a simple pendulum measured inside a stationary lift is found to be T. If the lift starts accelerating upwards with acceleration of g/3, then the time period of the pendulum is :
A)
\[1.53\times {{10}^{7}}m/s\]
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B)
\[A{{m}^{2}}\]
done
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C)
\[A{{m}^{2}}\]
done
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D)
\[A{{m}^{2}}\]
done
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question_answer 37) In germanium crystal, the forbidden energy gap in joule is :
A)
zero
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B)
\[A{{m}^{2}}\]
done
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C)
\[\sqrt{2}s\]
done
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D)
\[\frac{1}{\sqrt{2}}s\]
done
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question_answer 38) A semiconductor is cooled from \[\frac{1}{2}s\] to \[\mu F\], then its resistance :
A)
will not change
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B)
will increase
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C)
will decrease
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D)
none of these
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question_answer 39) The current gain of a transistor in common emitter mode is 49. The change in collector current and emitter current corresponding to the change in base current by 5.0 \[\mu F\]A, will be :
A)
\[\mu F\]
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B)
\[\mu F\]
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C)
\[\Omega \]
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D)
none of these
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question_answer 40) If the wavelength of 1st line of Balmer series is 6563\[\Omega \]. The wavelength of first line of Lyman series and Rydbergs constant respectively, will be :
A)
\[\Omega \]
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B)
\[\Omega \]
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C)
\[\Omega \]
done
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D)
none of these
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question_answer 41) The half-life of a radioactive substance is 40 years. How long will it take to reduce to one fourth of its original amount and what is the value of decay constant?
A)
40 year, 0.9173/year
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B)
90 year, 9.017/year
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C)
80 year, 0.0173/year
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D)
none of these
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question_answer 42) The mass equivalent to \[\Omega \]energy will be :
A)
\[\Omega \]
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B)
\[\Omega \]
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C)
\[\Omega \]
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D)
\[\Omega \]
done
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question_answer 43) Which one of the relation is correct between time period and number of orbits while an electron is revolving in a orbit?
A)
\[\Omega \]
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B)
\[\Omega \]
done
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C)
\[\Omega \]
done
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D)
\[\Omega \]
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question_answer 44) A cylinder contains 10 kg of gas at pressure of \[v=\frac{E}{B}\] , the quantity of gas taken out of the cylinder if final pressure is\[\Omega \], is :
A)
7.5 kg
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B)
15.2 kg
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C)
10.5 kg
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D)
none of these
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question_answer 45) A body of mass 1 kg tied to one end of string is revolved in a horizontal circle of radius 0.1 m with a speed of 3 revolution/sec, assuming the effect of gravity is negligible, then linear velocity, acceleration and tension in the string will be :
A)
1.88 m/s, 35.5 m/\[I=100\sin 200\pi t\], 35.5 N
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B)
2.88 m/s, 45.5 m/\[\frac{1}{400}s\], 45.5N
done
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C)
3.88 m/s, 55.5 m/\[\frac{1}{300}s\], 55.5N
done
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D)
none of these
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question_answer 46) If a source is transmitting electromagnetic waves of frequency \[\frac{1}{100}s\]Hz, the wavelength of electromagnetic wave transmitted from the source is :
A)
18.8 m
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B)
35.6 m
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C)
42.8 m
done
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D)
58 m
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question_answer 47) An X-ray tube operates on 30 kV. The minimum wavelength emitted is,\[\frac{1}{200}s\],\[L=\frac{0.4}{\pi }\]\[R=30\Omega \] :
A)
6.6 \[\Omega \]
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B)
1.2\[\Omega \]
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C)
0.133 \[\Omega \]
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D)
0.4 \[\Omega \]
done
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question_answer 48) In a nuclear reactor :
A)
moderator is used to slow down the neutrons
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B)
cadmium rods are used to slow down the neutrons
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C)
coolant is used to slow down the neutrons
done
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D)
moderator is used to control the neutrons
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question_answer 49) If C and R denote capacitance and resistance, then dimensions of CR will be :
A)
\[8.4\times {{10}^{6}}m/s.\]
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B)
\[2.76\times {{10}^{12}}C/kg\]
done
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C)
\[1.76\times {{10}^{11}}C/kg\]
done
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D)
\[0.76\times {{10}^{12}}C/kg\]
done
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question_answer 50) If the equation of transverse wave\[(h=6.6\times {{10}^{-34}}J.s,c=3\times {{10}^{8}}m/s)\]where distance is in cm and time in sec, then the wavelength of wave will be :
A)
20 cm
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B)
40 cm
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C)
60 cm
done
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D)
none of these
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question_answer 51) The colour of liquid \[{{O}_{2}}\] is:
A)
red
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B)
dark blue
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C)
pale yellow
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D)
pale blue
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question_answer 52) Ripening of fruits can be carried out in presence of:
A)
\[N{{a}_{2}}S{{O}_{4}}\]
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B)
\[NaCl\]
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C)
\[CaC{{l}_{2}}\]
done
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D)
\[Ca{{C}_{2}}\]
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question_answer 53) p-nitrophenol and o-nitrophenol are separated by:
A)
crystallization
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B)
fractional crystallization
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C)
distillation
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D)
steam distillation
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question_answer 54) Lead is maximum in:
A)
soda glass
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B)
jena glass
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C)
pyrex glass
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D)
flint glass
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question_answer 55) Which of the following is not an antibiotic?
A)
Penicillin
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B)
Sulphaguanidine
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C)
Chloramphenical
done
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D)
None of these
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question_answer 56) Which of the following salt undergoes hydrolysis?
A)
\[N{{a}_{2}}S{{O}_{4}}\]
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B)
\[N{{H}_{4}}Cl\]
done
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C)
\[NaCl\]
done
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D)
\[CaC{{l}_{2}}\]
done
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question_answer 57) On hydrolysis, which produces only glucose?
A)
Galactose
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B)
Maltose
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C)
Sucrose
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D)
None
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question_answer 58) Shortest \[C-C\] bond length is present in:
A)
\[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{3}}\]
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B)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\]
done
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C)
\[C{{H}_{2}}=CH-CH=C{{H}_{2}}\]
done
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D)
\[CH\equiv C-C\equiv CH\]
done
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question_answer 59)
\[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{3}}\xrightarrow{PB{{r}_{3}}}\]
A)
\[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-O-C{{H}_{2}}-C{{H}_{3}}\]
done
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B)
\[C{{H}_{3}}-O-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}C{{H}_{3}}\]
done
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C)
\[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}C{{H}_{2}}OH\]
done
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D)
\[C{{H}_{3}}-C{{H}_{2}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}OH\]
done
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question_answer 60) In the reaction,\[HAs{{O}_{4}}+S{{n}^{2+}}\xrightarrow{{}}As+S{{n}^{4+}}+{{H}_{2}}O\]oxidising agent is:
A)
\[S{{n}^{2+}}\]
done
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B)
\[S{{n}^{4+}}\]
done
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C)
\[As\]
done
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D)
\[HAs{{O}_{2}}\]
done
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question_answer 61) Noble gases are absorbed on :
A)
anhydrous \[CaC{{l}_{2}}\]
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B)
charcoal
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C)
cone. \[{{H}_{2}}S{{O}_{4}}\]
done
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D)
coconut
done
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question_answer 62) Ammonia and \[HCl\] gases are allowed to pass in the glass tube from the opposite ends. Formation of \[N{{H}_{4}}Cl\] white ring, will take place:
A)
nearer the \[N{{H}_{3}}\] end
done
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B)
at the centre
done
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C)
nearer \[HCl\] end
done
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D)
anywhere
done
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View Answer play_arrow
question_answer 63) 0.833 mole of a carbohydrate, with empirical formula \[C{{H}_{2}}O\], has 10g of hydrogen. Molecular formula of carbohydrate is:
A)
\[{{C}_{3}}{{H}_{5}}{{O}_{3}}\]
done
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B)
\[{{C}_{6}}{{H}_{12}}{{O}_{6}}\]
done
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C)
\[{{C}_{3}}{{H}_{10}}{{O}_{5}}\]
done
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D)
\[{{C}_{3}}{{H}_{4}}{{O}_{3}}\]
done
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View Answer play_arrow
question_answer 64) \[{{P}_{4}}+3NaOH+3{{H}_{2}}O\xrightarrow{{}}A+3Na{{H}_{2}}P{{O}_{2}}\]here, A is:
A)
\[N{{H}_{3}}\]
done
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B)
\[P{{H}_{3}}\]
done
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C)
\[{{H}_{3}}P{{O}_{4}}\]
done
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D)
\[{{H}_{3}}P{{O}_{3}}\]
done
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question_answer 65) Solubility of \[Pb{{I}_{2}}\]. is 0.005 M. Then, the solubility product of \[Pb{{I}_{2}}\] is:
A)
\[6.8\times {{10}^{-6}}\]
done
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B)
\[6.8\times {{10}^{6}}\]
done
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C)
\[2.2\times {{10}^{-9}}\]
done
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D)
none of these
done
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question_answer 66) The number of \[C{{l}^{-}}\] ions around one \[N{{a}^{+}}\] in \[NaCl\]I crystal lattice is:
A)
\[10\]
done
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B)
\[12\]
done
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C)
\[8\]
done
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D)
\[8\]
done
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View Answer play_arrow
question_answer 67) Which element is found in chlorophyll?
A)
Iron
done
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B)
Cobalt
done
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C)
Magnesium
done
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D)
Chromium
done
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View Answer play_arrow
question_answer 68) Which of the following is not correct for carboxylic acids?
A)
The lower acids are soluble in water
done
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B)
Higher members are insoluble in water
done
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C)
The solubility increases with branching
done
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D)
They unite in water and take proton from solvent
done
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question_answer 69) A chemical compound is heated and dried. To get accurate weight of this compound, one should:
A)
cool in dessicator
done
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B)
weigh in warm conditions
done
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C)
weigh after cooling
done
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D)
blow air through it
done
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View Answer play_arrow
question_answer 70) Isocyanide can be prepared from alkyi halide on treatment with:
A)
\[KNC\]
done
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B)
\[KgNC\]
done
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C)
\[KCN\]
done
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D)
\[AgCN\]
done
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View Answer play_arrow
question_answer 71) What is obtained, when acetic acid is heated with chlorine in presence of red phosphorus?
A)
Acetyl chloride
done
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B)
a-chloro acetic acid
done
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C)
Trichloro acetic acid
done
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D)
Chloral
done
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question_answer 72) Which of the following has maximum boiling point?
A)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Cl\]
done
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B)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH\]
done
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C)
\[\underset{OH}{\mathop{\underset{|}{\mathop{C{{H}_{3}}CHC{{H}_{3}}}}\,}}\,\]
done
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D)
\[\underset{OH}{\mathop{\underset{|}{\mathop{C{{H}_{2}}}}\,}}\,-C{{H}_{2}}-C{{H}_{2}}-\underset{OH}{\mathop{\underset{|}{\mathop{C{{H}_{2}}}}\,}}\,\]
done
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question_answer 73) The number of oxygen atoms in 44g \[C{{O}_{2}}\] at S.T.P. is:
A)
\[6.023\times {{10}^{23}}\]
done
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B)
\[6.023\times {{10}^{22}}\]
done
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C)
\[12.046\times {{10}^{23}}\]
done
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D)
none of these
done
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question_answer 74) Weight of \[Ca{{(OH)}_{2}}\] needed to prepare 250 ml of solution with pH =13:
A)
\[0.225g\]
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B)
\[0.0125\text{ }g\]
done
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C)
\[0.25\text{ }g\]
done
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D)
\[1\text{ }g\]
done
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View Answer play_arrow
question_answer 75) \[2C+{{O}_{2}}\xrightarrow{{}}2CO;\,\Delta H=220kJ\]Which of the following statement is correct for this reaction?
A)
Heat of combustion of carbon is 110 kJ
done
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B)
Reaction is exothermic
done
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C)
Reaction needs no initiation
done
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D)
All of these are correct
done
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View Answer play_arrow
question_answer 76) Maximum bond angle is present in :
A)
\[BC{{l}_{3}}\]
done
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B)
\[BB{{r}_{3}}\]
done
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C)
\[B{{F}_{3}}\]
done
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D)
same for all
done
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question_answer 77) \[{{H}_{2}}S\] is more acidic than \[{{H}_{2}}O\], due to:
A)
O is more electronegative than S
done
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B)
\[O-H\] bond is stronger than \[S-H\] bond
done
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C)
\[O-H\] bond is weaker than \[S-H\] bond
done
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D)
none of these
done
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View Answer play_arrow
question_answer 78) Entropy is maximum in case of:
A)
steam
done
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B)
water at \[{{0}^{o}}C\]
done
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C)
water at \[{{4}^{o}}C\]
done
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D)
ice
done
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View Answer play_arrow
question_answer 79) What will be the volume of the mixture after the reaction? \[\underset{4\,litre}{\mathop{N{{H}_{3}}}}\,+\underset{1.5\,litre}{\mathop{HCl}}\,\xrightarrow{{}}\underset{(soilid)}{\mathop{N{{H}_{4}}Cl}}\,\]
A)
0.5 litre
done
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B)
1 litre
done
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C)
2.5 litre
done
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D)
0.1 litre
done
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View Answer play_arrow
question_answer 80) Co-ordination number of \[N{{a}^{+}}\] ion in rock salt is:
A)
\[12\]
done
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B)
\[4\]
done
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C)
\[8\]
done
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D)
\[6\]
done
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View Answer play_arrow
question_answer 81) For nitration in benzene, we require :
A)
cone. \[HN{{O}_{3}}\]+ cone. \[{{H}_{2}}S{{O}_{4}}\]
done
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B)
cone. \[HN{{O}_{3}}\]
done
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C)
cone. \[{{H}_{2}}S{{O}_{4}}\]+ fuming \[HN{{O}_{3}}\]
done
clear
D)
\[KN{{O}_{2}}\]
done
clear
View Answer play_arrow
question_answer 82) What will be the volume of a 12M solution, if it is equivalent to 240 ml 18 M solution?
A)
6 litre ,
done
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B)
600 litre
done
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C)
400 litre
done
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D)
0.36 litre
done
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question_answer 83) Which of the following is diamagnetic?
A)
Oxygen molecule
done
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B)
Boron molecule
done
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C)
\[N_{2}^{+}\]
done
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D)
None
done
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question_answer 84) Hydrolysis of DDT is a first order reaction, its halt life is 10 years. Time to hydrolyse 10 g DDT to half is:
A)
100 years
done
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B)
50 years
done
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C)
5 years
done
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D)
10 years
done
clear
View Answer play_arrow
question_answer 85) \[C{{r}_{2}}O_{7}^{2-}+{{I}^{-}}\xrightarrow{{}}{{I}_{2}}+C{{r}^{3+}}\]\[{{E}^{o}}_{cell}=0.79V\]\[{{E}^{o}}_{C{{r}_{2}}O_{7}^{2-}}=1.33V,\,{{E}^{o}}_{{{I}_{2}}}\]is:
A)
\[-0.10V\]
done
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B)
\[+0.18V\]
done
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C)
\[-0.54V\]
done
clear
D)
\[0.54V\]
done
clear
View Answer play_arrow
question_answer 86) \[Zn(s)+C{{l}_{2}}(1atm)\xrightarrow{{}}Z{{n}^{2+}}+2C{{l}^{-}}\].\[{{E}^{o}}_{cell}\] of the cell is 2.12 V. To increase E :
A)
\[[Z{{n}^{2+}}]\] should be increased
done
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B)
\[[Z{{n}^{2+}}]\] should be decreased
done
clear
C)
\[[C{{l}^{-}}]\] should be decreased
done
clear
D)
\[{{P}_{C{{l}_{2}}}}\] should be decreased
done
clear
View Answer play_arrow
question_answer 87) Which will have enantiomer?
A)
\[C{{H}_{3}}C{{H}_{2}}\underset{Cl}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{3}}\]
done
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B)
\[C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}Cl\]
done
clear
C)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}CHC{{l}_{2}}\]
done
clear
D)
none
done
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View Answer play_arrow
question_answer 88) Which of the following is called white vitriol?
A)
\[ZnC{{l}_{2}}\]
done
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B)
\[MgS{{O}_{4}}.7{{H}_{2}}O\]
done
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C)
\[ZnS{{O}_{4}}.7{{H}_{2}}O\]
done
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D)
\[A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\]
done
clear
View Answer play_arrow
question_answer 89) Which gas is evolved, when ammonium dichromate is heated?
A)
Hydrogen
done
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B)
Ammonia
done
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C)
Oxygen
done
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D)
Nitrogen
done
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View Answer play_arrow
question_answer 90) Lead is soluble in:
A)
\[C{{H}_{3}}COOH\]
done
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B)
\[{{H}_{2}}S{{O}_{4}}\]
done
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C)
\[HCl\]
done
clear
D)
\[HN{{O}_{3}}\]
done
clear
View Answer play_arrow
question_answer 91) \[C{{H}_{3}}CH(OH).COOH\] shows:
A)
geometrical isomerism
done
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B)
optical isomerism
done
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C)
both
done
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D)
none
done
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View Answer play_arrow
question_answer 92) n-pentane and iso pentane can be distinguished by:
A)
\[B{{r}_{2}}\]
done
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B)
\[{{O}_{3}}\]
done
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C)
cone, \[{{H}_{2}}S{{O}_{4}}\]
done
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D)
\[KMn{{O}_{4}}\]
done
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View Answer play_arrow
question_answer 93) \[FeS{{O}_{4}}.7{{H}_{2}}O\] shows isomorphism with:
A)
\[ZnS{{O}_{4}}.7{{H}_{2}}O\]
done
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B)
\[MnS{{O}_{4}}.4{{H}_{2}}O\]
done
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C)
\[CaS{{O}_{4}}.5{{H}_{2}}O\]
done
clear
D)
\[CaC{{l}_{2}}.2{{H}_{2}}O\]
done
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View Answer play_arrow
question_answer 94) \[N{{a}_{2}}C{{O}_{3}}\] cannot be used to identify:
A)
\[CO_{3}^{2-}\]
done
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B)
\[SO_{3}^{2-}\]
done
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C)
\[{{S}^{2-}}\]
done
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D)
\[SO_{4}^{2-}\]
done
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View Answer play_arrow
question_answer 95) Nitrolim is :
A)
\[Ca{{C}_{2}}+{{N}_{2}}\]
done
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B)
\[CaC{{N}_{2}}+C\]
done
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C)
\[Ca(C{{N}_{2}})+C\]
done
clear
D)
\[Ca{{(CN)}_{2}}+N{{H}_{4}}CN\]
done
clear
View Answer play_arrow
question_answer 96) What is the EAN of nickel in \[Ni{{(CO)}_{4}}\]?
A)
\[34\]
done
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B)
\[35\]
done
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C)
\[32\]
done
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D)
\[36\]
done
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View Answer play_arrow
question_answer 97) A weak acid is 0.1% ionised in 0.1 K solution. Its pH is:
A)
2
done
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B)
3
done
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C)
4
done
clear
D)
1
done
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question_answer 98) Gold number is maximum for the lyophilic sol is :
A)
gelatin
done
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B)
haemoglobin
done
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C)
sodium oleate
done
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D)
potato starch
done
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View Answer play_arrow
question_answer 99) An alkene, on ozonolysis gives formaldehyde and acetaldehyde. The alkene is :
A)
ethene
done
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B)
propene
done
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C)
butene-1
done
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D)
butene-2
done
clear
View Answer play_arrow
question_answer 100) Which of the following polymer has este linkage?
A)
Nylon-66
done
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B)
PVC
done
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C)
Terylene
done
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D)
SBR
done
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View Answer play_arrow
question_answer 101) A person is injected with globulin against hepatitis. This is :
A)
artificially acquired passive immunity
done
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B)
artificially acquired active immunity
done
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C)
naturally acquired active immunity
done
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D)
naturally acquired passive immunity
done
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View Answer play_arrow
question_answer 102) Which one is mismatched?
A)
Bowmanns capsule- glomerular filtration
done
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B)
PCT-absorption of \[N{{a}^{+}}\]and \[{{K}^{+}}\]
done
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C)
DCT-absorption of glucose
done
clear
D)
None of these
done
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View Answer play_arrow
question_answer 103) How much amount of air can be inspired or expired during normal breathing :
A)
0.05
done
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B)
2.5
done
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C)
1.5
done
clear
D)
5.5
done
clear
View Answer play_arrow
question_answer 104) The largest variety of digestive enzymes is found in :
A)
carnivores
done
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B)
herbivores
done
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C)
omnivores
done
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D)
parasites
done
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View Answer play_arrow
question_answer 105) Alcohol is present in which of the following?
A)
Vitamin D
done
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B)
Vitamin 83
done
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C)
Vitamin 85
done
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D)
Vitamin C
done
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View Answer play_arrow
question_answer 106) In a double stranded DNA, the sequences of base pairs in one strand are AGCTAAGCC. Whats the complementary sequence on the other strand?
A)
TCGATTCGG
done
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B)
CGUAUUCG
done
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C)
AGCTAAGC
done
clear
D)
CAUTAUCG
done
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View Answer play_arrow
question_answer 107) The genes concerned with the production of cancer are called:
A)
cancer genes
done
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B)
carcinogens
done
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C)
carcinomas
done
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D)
oncogenes
done
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View Answer play_arrow
question_answer 108) A homozygous red flower is crossed with recessive white. Red is dominant over white. The progeny in the \[{{F}_{1}}\] generation will be :
A)
all red
done
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B)
all white
done
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C)
50% red and 50% white
done
clear
D)
75% red 50% white
done
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View Answer play_arrow
question_answer 109) Parasexuality was first discovered in :
A)
bacteria
done
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B)
virus
done
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C)
fungi
done
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D)
none of these
done
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View Answer play_arrow
question_answer 110) Sexual reproduction in algae results in the formation of :
A)
oospore
done
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B)
zoospore
done
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C)
zygote
done
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D)
zygospore
done
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View Answer play_arrow
question_answer 111) Which was first photosynthetic organism?
A)
Green algae
done
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B)
Red algae
done
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C)
Cyanobacteria
done
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D)
None of these
done
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View Answer play_arrow
question_answer 112) During protein denaturation which of the following is disrupted?
A)
2D structure
done
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B)
3D structure
done
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C)
Peptide bond
done
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D)
AA sequence
done
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View Answer play_arrow
question_answer 113) Which of the following pair is correct?
A)
Bats wing and insect wing are analogous
done
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B)
Seal flippers and bats paw are homologous
done
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C)
Insect wing and bird wing are homologous
done
clear
D)
Thorn of Bougainvillea and tendril of pea are analogous
done
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View Answer play_arrow
question_answer 114) ICBN is :
A)
International Culture Botanical Nomenclature
done
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B)
International Condition Botanical Nomenclature
done
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C)
International Code for Botanical Nomenclature
done
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D)
International Conversation for Botanical Nomenclature
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question_answer 115) If an organism has more rods it will:
A)
active during day
done
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B)
possess colour vision
done
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C)
active during night
done
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D)
both a and c are possible
done
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View Answer play_arrow
question_answer 116) The following cells cannot be grown under tissue culture conditions :
A)
hela cells
done
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B)
leucocytes
done
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C)
kidney cells
done
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D)
nerve cells
done
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View Answer play_arrow
question_answer 117) The largest gland in the human body is
A)
pancreas
done
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B)
brain
done
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C)
gall bladder
done
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D)
liver
done
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question_answer 118) Which of the phylum has none of fresh water form?
A)
Echinodennata
done
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B)
Mollusca
done
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C)
Chordata
done
clear
D)
Porifera
done
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question_answer 119) Bilaterally symmetrical but acoelomate animal is:
A)
liver fluke
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B)
jelly fish
done
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C)
round worms
done
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D)
crab
done
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question_answer 120) Maximum diversity is found in which phylum?
A)
Chordata
done
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B)
Arthropoda
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C)
Protozoa
done
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D)
Annelida
done
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question_answer 121) Which is not a feature of annelids:?
A)
Metameric segmentation
done
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B)
Nephridia
done
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C)
Pseudocoelom
done
clear
D)
Clitellum
done
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question_answer 122) Which of the following is a living fossil?
A)
Sphenodon
done
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B)
Heloderma
done
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C)
Rabbit
done
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D)
Frog
done
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question_answer 123) Which of the following required in translocation of food in plants?
A)
Xylem
done
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B)
Phloem
done
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C)
Sclerenchyma
done
clear
D)
Collenchyma
done
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View Answer play_arrow
question_answer 124) The organism which is used for gene transfer in higher organisms is?
A)
Agrobacterium tume faciens
done
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B)
E. coH
done
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C)
Acetobacter
done
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D)
Bacillus thuringenesis
done
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View Answer play_arrow
question_answer 125) In genetic engineering, the terms vector is applied for :
A)
plasmid
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B)
sources of DNA
done
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C)
cell which receives
done
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D)
virus
done
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View Answer play_arrow
question_answer 126) Heterozygous purple flower is crossed with recessive white flower. The progeny has the ratio :
A)
all purple
done
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B)
all white
done
clear
C)
50% purple, 50% white
done
clear
D)
75%
done
clear
View Answer play_arrow
question_answer 127) Progesterone pill helps in preventing pregnancy by not allowing
A)
ova formation
done
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B)
fertilization
done
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C)
implantation
done
clear
D)
none of these
done
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View Answer play_arrow
question_answer 128) Beadle and Tatum performed classical experiment on Neurospora crassa to explain:
A)
one gene produce one enzyme
done
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B)
one enzyme can correct one gene
done
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C)
both a and b
done
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D)
none of these
done
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View Answer play_arrow
question_answer 129) Which one of the following gases can deplete ozone layer in the upper atmosphere?
A)
Ammonia
done
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B)
Methane
done
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C)
Carbon monoxide
done
clear
D)
Sulphur dioxide
done
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View Answer play_arrow
question_answer 130) To remove seed dormancy by mechanically removing the seed coat, is called:
A)
stratification
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B)
scarification
done
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C)
vernalization
done
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D)
photoperiodism
done
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View Answer play_arrow
question_answer 131) Superority of hybrid over parent is :
A)
heterosis
done
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B)
selection
done
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C)
hybridized progeny
done
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D)
hybrid vigour
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View Answer play_arrow
question_answer 132) The jumping genes in maize were discovred by :
A)
H.G. Khorana
done
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B)
T.H. Morgan
done
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C)
Beadle and Tatum
done
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D)
Barbara McClintock
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question_answer 133) Which one among the following is likely to have the highest level of DDT deposition in its body?
A)
Phytoplanktons
done
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B)
Sea gull
done
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C)
Crab
done
clear
D)
Eel fish
done
clear
View Answer play_arrow
question_answer 134) Phytotoxins are secreted by plants in response to fungal reaction. These compounds are generally :
A)
proteins
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B)
glycoproteins
done
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C)
phenolic compounds
done
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D)
lipids
done
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View Answer play_arrow
question_answer 135) Which is a unit of evolution?
A)
Cell
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B)
Individual
done
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C)
Population
done
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D)
Species
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View Answer play_arrow
question_answer 136) Biological species concept emphasizes on :
A)
geographical isolation
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B)
reproductive isolation
done
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C)
physiological isolation
done
clear
D)
none of the above
done
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View Answer play_arrow
question_answer 137) Cytokinins are formed in :
A)
roots
done
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B)
leaves
done
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C)
fruits
done
clear
D)
stems
done
clear
View Answer play_arrow
question_answer 138) Interferons are produced in response to :
A)
virus
done
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B)
bacteria
done
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C)
helminthes
done
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D)
malarial parasites
done
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question_answer 139) In which the pneumatophores are found?
A)
Tinospora
done
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B)
Pinus
done
clear
C)
Rhizophwra
done
clear
D)
None of these
done
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View Answer play_arrow
question_answer 140) Scorpion belongs to a class to which one of the following also belong?
A)
Ticks
done
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B)
Crabs
done
clear
C)
Branicles
done
clear
D)
Cockroaches
done
clear
View Answer play_arrow
question_answer 141) Which one of the following is antioxidant vitamin :
A)
C, E, A
done
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B)
Bi. 84
done
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C)
A,D,E
done
clear
D)
B3,B5
done
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question_answer 142) Acetylcholine helps in :
A)
synaptic transmission
done
clear
B)
membrane permeability
done
clear
C)
synaptic delay
done
clear
D)
none of the above
done
clear
View Answer play_arrow
question_answer 143) The physiological capacity to produce off springs is called :
A)
birth rate
done
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B)
biotic potential
done
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C)
crude natality
done
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D)
mortality
done
clear
View Answer play_arrow
question_answer 144) Biogas produced by anaerobic decomposition used in combustion is mainly due to presence of :
A)
\[{{H}_{2}}\]
done
clear
B)
\[C{{H}_{4}}\]
done
clear
C)
\[{{H}_{2}}S\]
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 145) Which one of the gas is present today but was absent about 3.5 million years ago?
A)
\[{{O}_{2}}\]
done
clear
B)
\[{{N}_{3}}\]
done
clear
C)
\[{{H}_{2}}\]
done
clear
D)
\[C{{H}_{4}}\]
done
clear
View Answer play_arrow
question_answer 146) In man, artificial pace-maker is implanted due to defects in :
A)
SA node
done
clear
B)
AV node
done
clear
C)
mitral valve
done
clear
D)
Purkinje fibres
done
clear
View Answer play_arrow
question_answer 147) Niacin deficiency leads to :
A)
pellagra
done
clear
B)
osteomalacia
done
clear
C)
marasmus
done
clear
D)
scurvy
done
clear
View Answer play_arrow
question_answer 148) Enzyme having different molecular arrangement but similar functions, is :
A)
isoenzyme
done
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B)
holoenzyme
done
clear
C)
apoenzyme
done
clear
D)
coenzyme
done
clear
View Answer play_arrow
question_answer 149) if the foetus is Rh+ and mother is Rh- then :
A)
foetus will transmit antigen to mother blood
done
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B)
foetus will transmit antibody to mother blood
done
clear
C)
foetus is attacked by antibodies to mother blood
done
clear
D)
foetus is attacked by antigen to mother blood
done
clear
View Answer play_arrow
question_answer 150) Theory of pangenesis was proposed by :
A)
F. Reedi
done
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B)
Darwin
done
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C)
Haeckel
done
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D)
Miller
done
clear
View Answer play_arrow
question_answer 151) Respiratory quotient (R.Q.) is :
A)
\[\frac{C{{O}_{2}}}{{{O}_{2}}}\]
done
clear
B)
\[\frac{{{O}_{2}}}{C{{O}_{2}}}\]
done
clear
C)
\[\frac{{{N}_{2}}}{C{{O}_{2}}}\]
done
clear
D)
\[\frac{C{{O}_{2}}}{{{N}_{2}}}\]
done
clear
View Answer play_arrow
question_answer 152) For DNA structure, Nobel prize was given to :
A)
Macria Wilkins
done
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B)
Franklin
done
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C)
Pauly
done
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D)
Watson and Crick
done
clear
View Answer play_arrow
question_answer 153) Formation of glucose from lipids is :
A)
gluconeogenesis
done
clear
B)
glycogenoiysis
done
clear
C)
glycogenesis
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 154) The edible part of litchi is :
A)
aril
done
clear
B)
endocarp
done
clear
C)
mesocarp
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 155) Which of the following is initiating cod on?
A)
AUG
done
clear
B)
AUU
done
clear
C)
UAG
done
clear
D)
None of these
done
clear
View Answer play_arrow
question_answer 156) Cyanobacteria are :
A)
mosses which attack bacteria
done
clear
B)
bacteria which attack Cyanophyccae
done
clear
C)
autotrophic organism with phycocyanin
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 157) Cryopreservation is done at temperature:
A)
\[-140{}^\circ C\]
done
clear
B)
\[-120{}^\circ C\]
done
clear
C)
\[-196{}^\circ C\]
done
clear
D)
\[-273{}^\circ C\]
done
clear
View Answer play_arrow
question_answer 158) At which stage of mitosis chromatids separated and passes to different poles?
A)
Prophase
done
clear
B)
Metaphase
done
clear
C)
Anaphase
done
clear
D)
Telophase
done
clear
View Answer play_arrow
question_answer 159) Which one of the following is common in plant and animal?
A)
Mitochondria
done
clear
B)
Tonoplast
done
clear
C)
Centriole
done
clear
D)
None of these
done
clear
View Answer play_arrow
question_answer 160) Fungi lack :
A)
mitochondria
done
clear
B)
ribosomes
done
clear
C)
chloroplast
done
clear
D)
endoplasmic reticulum
done
clear
View Answer play_arrow
question_answer 161) Which one of the following organelles lack membranes?
A)
Ribosome
done
clear
B)
Mitochondria
done
clear
C)
Golgi complex
done
clear
D)
Nucleus
done
clear
View Answer play_arrow
question_answer 162) Rajaji national park is situated in :
A)
Tamil Nadu
done
clear
B)
Karnataka
done
clear
C)
Uttranchal
done
clear
D)
Rajasthan
done
clear
View Answer play_arrow
question_answer 163) Chlorophyll a is obsent in which of the following photosynthetic organism?
A)
Cyanobacteria
done
clear
B)
Red algae
done
clear
C)
Brown algae
done
clear
D)
Bacteria
done
clear
View Answer play_arrow
question_answer 164) Streptococcus is employed in the manufacturing of :
A)
wine
done
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B)
bread
done
clear
C)
cheese
done
clear
D)
all of these
done
clear
View Answer play_arrow
question_answer 165) water bloom is generally caused by
A)
green algae
done
clear
B)
blue-green algae
done
clear
C)
bacteria
done
clear
D)
Hydrilla
done
clear
View Answer play_arrow
question_answer 166) Who proposed the natural system of classification?
A)
Carolus Linnaeus
done
clear
B)
lone Hutchinson
done
clear
C)
Bentham and Hooker
done
clear
D)
Oswald Tippo
done
clear
View Answer play_arrow
question_answer 167) Which one of the following is a major pollutant of automobile gases
A)
Carbon monoxides
done
clear
B)
Oxides of nitrogen
done
clear
C)
Oxides of sulphur
done
clear
D)
Carbon dioxide
done
clear
View Answer play_arrow
question_answer 168) During meiosis, crossing over occurs between:
A)
sister chromatids of homologous chromosome
done
clear
B)
non-sister chromatids of homologous chromosome
done
clear
C)
sister chromatids of non-homologous chromosome
done
clear
D)
non-homologous chromatids of homologous chromosome
done
clear
View Answer play_arrow
question_answer 169) Node of Ranvier is found in :
A)
right auricle
done
clear
B)
muscle bundles
done
clear
C)
dendrite
done
clear
D)
axon
done
clear
View Answer play_arrow
question_answer 170) The layer of cells that secrete enamel of tooth is :
A)
dentoblast
done
clear
B)
ameloblast
done
clear
C)
osteoblast
done
clear
D)
odontoblast
done
clear
View Answer play_arrow
question_answer 171) Monosomy and trisomy can be represented as :
A)
2n+1,2n+3
done
clear
B)
2n-1,2n-2
done
clear
C)
2n, 2n +1
done
clear
D)
2n -1,2n +1
done
clear
View Answer play_arrow
question_answer 172) Trisomy of which chromosome is involved in Downs syndrome?
A)
15th
done
clear
B)
21st
done
clear
C)
20th
done
clear
D)
19th
done
clear
View Answer play_arrow
question_answer 173) Choose the correct statement about the direction of DNA strand
A)
\[5\to 3\]takes place on template strand
done
clear
B)
\[3\to 5\] takes place on new strand
done
clear
C)
\[5\to 3\] takes place on leading strand
done
clear
D)
None of these
done
clear
View Answer play_arrow
question_answer 174) \[{{O}_{2}}\] evolution is directly associated with :
A)
PS-I
done
clear
B)
PS-II
done
clear
C)
phytochrome
done
clear
D)
phycocyanin
done
clear
View Answer play_arrow
question_answer 175) The hormone involved in metabolism of food material in cereal grains during germination, is :
A)
auxin
done
clear
B)
cytokinin
done
clear
C)
gibberellin acid
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 176) Cycas circinalis is a source of :
A)
resin
done
clear
B)
timber
done
clear
C)
essential oil
done
clear
D)
starch
done
clear
View Answer play_arrow
question_answer 177) Maximum productivity is found in :
A)
Grassland
done
clear
B)
tropical rain forest
done
clear
C)
Ocean
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 178) Which of the following is absent in DNA?
A)
U
done
clear
B)
A
done
clear
C)
T
done
clear
D)
G
done
clear
View Answer play_arrow
question_answer 179) Vernalization is done at:
A)
lower temperature
done
clear
B)
low light intensity
done
clear
C)
higher temperature
done
clear
D)
high light intensity
done
clear
View Answer play_arrow
question_answer 180) Ginseng is an important drug of :
A)
America
done
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B)
Egypt
done
clear
C)
India
done
clear
D)
China
done
clear
View Answer play_arrow
question_answer 181) Triticum aestizrium the common bread wheat is :
A)
triploid with 21 chromosome
done
clear
B)
hexaploid with 42 chromosome
done
clear
C)
tetraploid with 30 chromosome
done
clear
D)
diploid with 14 chromosome
done
clear
View Answer play_arrow
question_answer 182) CFCs are not recomended to be used in refrigerators because they :
A)
increase temperature
done
clear
B)
deplete ozone
done
clear
C)
affect environment
done
clear
D)
affect human body
done
clear
View Answer play_arrow
question_answer 183) Single stranded nucleic acid is found in :
A)
E. coli
done
clear
B)
\[\phi \times \,174\]
done
clear
C)
\[\lambda \]
done
clear
D)
\[{{T}_{4}}\]
done
clear
View Answer play_arrow
question_answer 184) Black rust of wheat is caused by :
A)
Puccinia graminis
done
clear
B)
Ustifago
done
clear
C)
Pythium
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 185) A cell active in protein synthesis will rich in :
A)
ribosome
done
clear
B)
Golgi bodies
done
clear
C)
mitochondria
done
clear
D)
lysosome
done
clear
View Answer play_arrow
question_answer 186) Lateral root originates from :
A)
endodermis
done
clear
B)
pericycle
done
clear
C)
cortex
done
clear
D)
phloem
done
clear
View Answer play_arrow
question_answer 187) Use and disuse Theory was propsed by :
A)
Lamarck
done
clear
B)
Darwin
done
clear
C)
Hugo de Vries
done
clear
D)
Malthus
done
clear
View Answer play_arrow
question_answer 188) Cell organelle responsible for autolysis :
A)
dictyosome
done
clear
B)
lysosome
done
clear
C)
peroxisome
done
clear
D)
glyoxysome
done
clear
View Answer play_arrow
question_answer 189) Eggs of cockroach are :
A)
alecithal
done
clear
B)
microlecithal
done
clear
C)
telolecithal
done
clear
D)
centrolecithal
done
clear
View Answer play_arrow
question_answer 190) The endoskeleton of cell is made up of :
A)
deutoplasm
done
clear
B)
protoplasm
done
clear
C)
endoplasmic reticulum
done
clear
D)
cell wall
done
clear
View Answer play_arrow
question_answer 191) Ley ding cells are found in
A)
heart
done
clear
B)
lungs
done
clear
C)
spleen
done
clear
D)
testis
done
clear
View Answer play_arrow
question_answer 192) The instrument by which B.P. of man is determined :
A)
Sphygmomanometer
done
clear
B)
B.P. meter
done
clear
C)
altra sound
done
clear
D)
stethoscope
done
clear
View Answer play_arrow
question_answer 193) In recent years which disease of digestive system in India has received great attention and against that active vaccination is being done even in schools?
A)
Polimyelitis
done
clear
B)
Hepatitis
done
clear
C)
Jaundice
done
clear
D)
Enterocolitis
done
clear
View Answer play_arrow
question_answer 194) Cystoliths are composed of :
A)
glucosides
done
clear
B)
calcium oxalate
done
clear
C)
calcium carbonate
done
clear
D)
magnesium oxalate
done
clear
View Answer play_arrow
question_answer 195) Which one of the following element is essential for the life of animal and not for plants?
A)
Calcium
done
clear
B)
Iodine
done
clear
C)
Phosphorus
done
clear
D)
Potassium
done
clear
View Answer play_arrow
question_answer 196) Haversian canal are found in :
A)
internal ear of mammal
done
clear
B)
external ear of mammal
done
clear
C)
long bone of rabbit
done
clear
D)
spinal chord
done
clear
View Answer play_arrow
question_answer 197) The AIDS test is known as :
A)
ELISA
done
clear
B)
Australian antigen
done
clear
C)
HIV test
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 198) Hematology is the study of :
A)
bone
done
clear
B)
blood
done
clear
C)
cartilage
done
clear
D)
nerves
done
clear
View Answer play_arrow
question_answer 199) Osmotic pressure of a solution is :
A)
greater than pure solvent
done
clear
B)
less than pure solvent
done
clear
C)
equal to pure solvent
done
clear
D)
less than or greater than pure solvent
done
clear
View Answer play_arrow
question_answer 200) Number of linkage group in Pisum sativum is :
A)
2
done
clear
B)
5
done
clear
C)
7
done
clear
D)
9
done
clear
View Answer play_arrow
\[\xrightarrow{{{H}_{2}}O}\]D Here ,D is:
