question_answer 1) A car accelerates from rest at a constant rate \[\alpha \]for some time after which it decelerates at a constant rate \[\beta \] to come to rest. If the total time elapsed is t second, the maximum velocity reached is
A)
\[\frac{{{\alpha }^{2}}\beta t}{{{\alpha }^{2}}+{{\beta }^{2}}}\]
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B)
\[\frac{\alpha \beta t}{\alpha +\beta }\]
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C)
\[\frac{{{\beta }^{2}}\alpha }{{{\alpha }^{2}}+\beta }\]
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D)
\[\frac{\alpha \beta }{t}\]
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question_answer 2) The OR gate follows the Boolean expression, for A and B as two input variables and Y as output
A)
A + B = Y
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B)
A. B = V
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C)
\[\overline{A}\] = Y
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D)
None of these
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question_answer 3) If the frequency of the incident light is doubled, the kinetic energy of the emmitted electron will be
A)
zero
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B)
reduced to \[\frac{1}{3}\]
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C)
also doubled
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D)
None of these
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question_answer 4) If the two interfering beams have intensities in the ratio of 9 : 4. The ratio of intensities of maxima and minima in the interference pattern will be
A)
4 : 9
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B)
3 : 4
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C)
1 : 25
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D)
25 : 1
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question_answer 5) The charge of an electron is \[1.6\times {{10}^{-19}}C.\]How many electrons strike the screen of cathode ray tube each second, when the beam current is 16 m A?
A)
\[\text{1}{{0}^{-\text{19}}}\]
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B)
\[\text{1}{{0}^{-17}}\]
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C)
\[\text{1}{{0}^{-18}}\]
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D)
\[\text{1}{{0}^{17}}\]
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question_answer 6) A 500 kg horse pulls a cart of mass 1500 kg along a level road with an acceleration of \[\text{1 m}/{{\text{s}}^{\text{2}}}.\] If the coefficient of sliding friction 0.2. The horizontal force exerted by the earth on the horse is
A)
6000 N
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B)
5000 N
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C)
4000 N
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D)
3000 N
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question_answer 7) A object of mass 5 kg falls from rest through: a vertical distance of 20 m and reaches with a velocity of 10 m/s. How much work is done by push of air on the object? \[\left( \text{g }=\text{ 9}.\text{6 m}/{{\text{s}}^{\text{2}}} \right)\]
A)
-730 J
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B)
-365 J
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C)
-530 J
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D)
-1460 J
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question_answer 8) A 1.0 kg ball falls vertically on to the floor with a speed of 25 m/s. It rebounds with an initial speed of 10 m/s. Find the restitution coefficient and the impulse acting on the ball during contact, if the ball is in contact for 0.02 s. What is average exerted force on the floor ?
A)
0.1, 55 kg m/s, 1550 N
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B)
0.2, 45 kg m/s 1650 N
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C)
0.3, 30 kg m/s, 1550 N
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D)
0.4, 35 kg m/s, 1750 N
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question_answer 9) A substance reduces to 1/16th of its original mass in 2 h. The half-life period of the substance will be
A)
120 min
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B)
60 min
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C)
30 min
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D)
15 min
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question_answer 10) If the distance between the conduction band and valence band is 1 eV. This combination is
A)
semiconductor
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B)
conductor
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C)
metal
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D)
insulator
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question_answer 11) In a nuclear fission reaction
A)
A heavy nuclei breaks by itself
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B)
A heavy nuclei bombarded by thermal neutrons break up
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C)
A light nucleus bombarded by thermal neutrons break up
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D)
The light nucleus combine to produce a heavier nucleus
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question_answer 12) In 1865 the existance of electromagnetic waves was predicted by
A)
Maxwell
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B)
Hertz
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C)
Bose
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D)
Marconi
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question_answer 13) Two positive point charges of \[12\mu \,C\]and \[8\mu \,C\]are 10 cm apart. The work done in bringing them 4 cm closer, is
A)
1.3 eV
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B)
13 J
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C)
5.8 J
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D)
5.8 eV
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question_answer 14) Energy in Bohrs orbit is given by the \[{{E}_{n}}=-\left( \frac{B}{{{n}^{2}}} \right)\] where n is principal quantum number and \[\text{B}=\text{2}.\text{2}\times \text{1}{{0}^{\text{18}}}\text{ J}.\]The frequency of radiation when an electron jumps from the third orbit to the second orbit is \[\left( h=6.6\times \text{1}{{0}^{-34}}\text{ Js} \right)\]
A)
\[\text{4}.\text{6}\times \text{1}{{0}^{\text{14}}}\text{ Hz}\]
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B)
\[\text{2}.\text{3}\times \text{1}{{0}^{\text{14}}}\text{ Hz}\]
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C)
\[\text{8}.\text{2}\times \text{l}{{0}^{\text{14}}}\text{Hz}\]
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D)
None of these
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question_answer 15) The wavelength of the first member of the Balmer series of hydrogen spectrum is \[6563\,\overset{\text{o}}{\mathop{\text{A}}}\,\]. Calculate the wavelength of second member of the Paschen series in the same spectrum
A)
\[8563\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
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B)
\[10818\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
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C)
\[6409\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
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D)
\[12818\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
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question_answer 16) In a triode valve, the current in the plate circuit is controlled by
A)
ammeter
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B)
grid
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C)
cathode
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D)
anode
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question_answer 17) An electron beam passes through a magnetic field of \[\text{2}\times \text{1}{{0}^{-3}}\] \[\text{Wb}/{{\text{m}}^{\text{2}}}\]and an electric field of \[1.0\times \text{1}{{0}^{\text{4}}}\text{V}/\text{m}\]both acting simultaneously. The path of electron remains undeviated. The speed of electron, if the electric field is removed, and the radius of electron path will be respectively
A)
\[\text{1}0\times \text{1}{{0}^{\text{6}}}\text{ m}/\text{s},\text{ 2}.\text{43 cm}\]
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B)
\[\text{2}.\text{5}\times \text{1}{{0}^{\text{6}}}\text{ m}/\text{s},\text{ }0.\text{43 cm}\]
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C)
\[\text{5}\times \text{l}{{0}^{\text{6}}}\text{m}/\text{s},\text{ 1}.\text{42cm}\]
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D)
None of the above
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question_answer 18) If the earth field induction at a place is 0.36 respectively gauss and angle of dip is \[60{}^\circ \]. The horizontal and vertical component of the field will be
A)
0.18 gauss, 0.18 \[\sqrt{3}\]gauss
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B)
0.09 gauss, 0.09 \[\sqrt{3}\]gauss
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C)
0.36 gauss, 0.36 \[\sqrt{3}\]gauss
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D)
None of the above
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question_answer 19) A coil of mean area 500 \[c{{m}^{2}}\] and having 1000 turns is held perpendicular to a uniform field of 0.4 gauss. The coil is turned through \[180{}^\circ \] in s the average induced emf will be
A)
0.08 V
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B)
0.16 V
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C)
1.6 V
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D)
0.04 V
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question_answer 20) The internal resistance of a cell of emf 2 V is 0.10. It is connected to a resistance of 3.9 \[\Omega \] the voltage across the cell will be
A)
1.95 V
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B)
12.7 V
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C)
1.5 V
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D)
6.71 V
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question_answer 21) An inductance of 1 mH and a capacitance of 10 h F are connected in a circuit. The angular frequency of circuit will be
A)
\[\text{1}{{0}^{\text{3}}}\text{ rad}/\text{s}\]
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B)
\[\text{1}{{0}^{4}}\text{ rad}/\text{s}\]
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C)
\[\text{1}{{0}^{2}}\text{ rad}/\text{s}\]
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D)
\[\text{1}{{0}^{5}}\text{ rad}/\text{s}\]
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question_answer 22) If an AC main supply is given to be 220 V. The average emf during a positive half cycle will be
A)
198 V
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B)
220 V
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C)
240 V
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D)
220 \[\sqrt{2}\] V
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question_answer 23) A coil has an inductance of 0.7 H and is joined in series with a resistance of 220 f2. When the alternating emf of 220 V at 50 Hz is applied to it then the phase through which current lags behind the applied emf and the wattless component of current in the circuit will be respectively
A)
\[~30{}^\circ ,\text{ }1\text{ }A\]
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B)
\[~45{}^\circ ,\text{ }0.5\text{ }A\]
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C)
\[~69{}^\circ ,\text{ }1.5\text{ }A\]
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D)
None of these
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question_answer 24) A step up transformer operates on a 220 V line and supplies to a load of a current of 2 A. The ratio of turns in primary and the secondary winding is 25 : 1. The secondary voltage, primary current and power output will be respectively
A)
5500 V,50 A,11 kW
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B)
500 V, 25 A, 22 kW
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C)
2400 V, 40 A, 5.5 kW
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D)
None of the above
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question_answer 25) Electron moves at right angle to a magnetic field of \[\text{1}.\text{5}\times \text{1}{{0}^{-\text{2}}}\] T with speed of \[\text{6}\times \text{1}{{0}^{\text{7}}}\text{ m}/\text{s}.\] If the specific charge of the electron is \[\text{1}.\text{7}\times \text{1}0\text{11 C}/\text{kg}.\] The radius of circular path will be
A)
3.31 cm
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B)
4.31 cm
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C)
1.31cm
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D)
2.35 cm
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question_answer 26) Find the number of photon emitted per second by a 25 W source of monochromatic light of wavelength \[6600\,\overset{\text{o}}{\mathop{\text{A}}}\,\]. What is the photoelectric current assuming 3% efficiency for photoelectric effect ?
A)
\[\frac{25}{3}\times {{10}^{19}}J,0.4\,A\]
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B)
\[\frac{25}{4}\times {{10}^{19}}J,6.2\,A\]
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C)
\[\frac{25}{2}\times {{10}^{19}}J,0.8\,A\]
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D)
None of the above
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question_answer 27) The de-Broglie wavelength of thermal neutron is of the order of the
A)
size of grain
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B)
Bohrs radius
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C)
distance between atom in crystal
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D)
size of nucleus
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question_answer 28) Figure below shows regular hexagon, the charges are placed at the vertices. In which of the following cases the electric field at the centre is zero?
A)
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B)
done
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C)
done
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D)
done
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question_answer 29) The equation of a wave moving on a string is \[\text{y}=8\text{ sin2}\,\pi \text{ }\left( 0.0\text{1 x}-\text{2 }\omega \text{t} \right),\] where y and x are in cm and t in second the amplitude of wave is
A)
8 cm
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B)
25 cm
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C)
50 cm
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D)
100 cm
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question_answer 30) The motion of particle is described by the equation\[x=a+b{{t}^{2}}\]where a = 15 cm and \[\text{b}=\text{3 cm}/\text{sb }=\text{ 3 cm}/{{\text{s}}^{\text{2}}}.\]Its instant velocityat time 3 s will be
A)
36 cm/s
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B)
9 cm/s
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C)
4.5 cm/s
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D)
18 cm/s
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question_answer 31) For a particle in a uniformly accelerated circular motion
A)
velocity is radial and acceleration has both radial and transverse components
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B)
velocity is transverse and acceleration has both radial and transverse components
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C)
velocity is radial and acceleration is transverse only
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D)
velocity is transverse and acceleration is radial only
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question_answer 32)
A long capillary tube of radius 1 mm open at both ends are filled with water and placed vertically. What will be the height of column of water left in capillary ? The thickness of wall of capillary is negligible. (surface tension of water \[=\text{ 73}.\text{5}\times \text{1}{{0}^{-3}}\text{ N}/\text{m},\] density of water \[\text{1}{{0}^{17}}\]
A)
3 cm
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B)
1.5 cm
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C)
4.5 cm
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D)
6 cm
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question_answer 33) A steel wire of length 20 cm and uniform cross section 1 mm2 is tied rigidly at both the ends. If temperature of the wire is altered from \[40{}^\circ C\] to \[20{}^\circ C\]. Calculate the change in tension. (Given coefficient of linear expansion of steel \[\alpha =\text{1}.\text{1}\times {{10}^{-5}}/{}^\circ \text{C}\]and Youngs modulus Vfor steel \[=\text{ 2}\times \text{1}{{0}^{\text{11}}}\text{ N}/{{\text{m}}^{\text{2}}})\]
A)
88 N
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B)
UN
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C)
44 N
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D)
22 N
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question_answer 34) Two vessels of different materials are identical in size and wall thickness, they are filled with equal quantities of ice at \[0{}^\circ C\]. If the ice melts completely in 10 and 25 min respectively, then the coefficients of thermal conductivities of the material are
A)
2 : 3
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B)
3 : 5
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C)
5 : 2
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D)
1 : 1
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question_answer 35) If the root mean square velocity of the molecules of hydrogen at NTP is 1.84 km/s. Calculate the root mean square velocity of oxygen molecule at NTP molecule weight of hydrogen and oxygen are 2 and 32, respectively.
A)
1.47km/s .
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B)
0.94 km/s
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C)
1.84 km/s
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D)
0.47 km/s
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question_answer 36) The pressure p and density ratio of a diatomic gas \[\left( y=\frac{7}{5} \right)\]changes adiabatically from\[(\text{P},~\left( \text{p},\text{ }\rho \right).\text{ If }\frac{\rho }{\rho }=\text{32},\] then what is value of -\[\frac{p}{p}\] ?
A)
128
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B)
256
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C)
64
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D)
32
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question_answer 37) Calculate the work done when 1 mole of perfect gas is compressed adiabatically the initial pressure and volume of gas are \[\text{1}{{0}^{\text{5}}}\text{ N}/{{\text{m}}^{\text{2}}}\]and 6 L, respectively. The final value of the gas is 2 L molar specific heat of the gas at on constant volume is \[\frac{3R}{2}({{3}^{5/3}}=6.19)\]
A)
857 J
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B)
757 J
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C)
1057 J
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D)
957 J
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question_answer 38) Three bars of equal lengths and equal areas of cross-section are connected in series. Their thermal conductivities are in the ratio of 2 : 4 : 3. If the open ends of the first and the last bars are at temperatures \[200{}^\circ C\] and \[18{}^\circ C\] respectively in the steady state, the temperature of the two junctions is
A)
\[60{}^\circ C,\text{ }50{}^\circ C\]
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B)
\[116{}^\circ C,\text{ }74{}^\circ C\]
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C)
\[55{}^\circ C,\text{ }65{}^\circ C\]
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D)
\[160{}^\circ C,\text{ }80{}^\circ C\]
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question_answer 39) The temperature of a furnace is \[2324{}^\circ C\] and the intensity is maximum in its radiation spectrum nearly at \[12000\,\overset{\text{o}}{\mathop{\text{A}}}\,\]. If the intensity in the spectrum of a star is maximum nearly at \[4800\,\overset{\text{o}}{\mathop{\text{A}}}\,\]. Then surface temperature of the star is
A)
\[7219.5{}^\circ C\]
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B)
\[6219.5{}^\circ C\]
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C)
\[6319.5{}^\circ C\]
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D)
None of these
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question_answer 40) A thunder clap is heard 5.5s after the lightening flash. The distance of the flash is (velocity of sound in f...t = 330 m/s)
A)
1815m
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B)
1750m
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C)
4600m
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D)
3630m
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question_answer 41) A wave is expressed by the equation \[\text{y}=0.\text{5 sin it}\left( 0.0\text{1x}-\text{3t} \right),\]where x, y are in metres and t in seconds. The speed of propagation will be
A)
300 m/s
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B)
150 m/s
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C)
250 m/s
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D)
450 m/s
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question_answer 42) A stretched string of length 1 m and mass \[\text{5}\times \text{1}{{0}^{-4}}\text{ kg}\] fixed at both ends is under tension of 20 N. it is plucked at a point situated at 25 cm from one end. The frequency of vibration of the string will be
A)
125 Hz
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B)
50 Hz
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C)
200 Hz
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D)
100 Hz
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question_answer 43) A small air bubble is situated in a cube of 24 cm edge when viewed from one face, it appear to be 10 cm from the surface and through the opposite face is 6 m from the surface. Then the refractive index of the material of the cube is
A)
1.6
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B)
1.5
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C)
1.3
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D)
1.4
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question_answer 44) Light travels in two medium A and B with speeds \[\text{2}\times \text{l}{{0}^{\text{8}}}\text{ m}/\text{s}\]and \[\text{2}.\text{4}\times \text{l}{{0}^{\text{8}}}\text{ m}/\text{s}\] respectively. The critical angle C between them will be
A)
\[56.4{}^\circ \]
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B)
\[28.2{}^\circ \]
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C)
\[50.4{}^\circ \]
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D)
\[39.4{}^\circ \]
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question_answer 45) A thin prism Pi with angle \[6{}^\circ \] and made from glass of refractive index 1.54 is combined with another thin prism \[{{P}_{2}}\]of refractive index 1.72 to produce dispersion without deviation. The angle of prism \[{{P}_{2}}\]will be
A)
\[~4{}^\circ \text{ }30~'\]
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B)
\[8.5{}^\circ \]
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C)
\[6.5{}^\circ \]
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D)
None of these
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question_answer 46) A person can see clearly objects lying between 15 cm and 100 cm from his eye. What will be the range of his vision, if he wear close fitting spectacles having a power of 0.8 D ?
A)
17 cm to 500 cm
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B)
34 cm to 250 cm
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C)
20 cm to 200 cm
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D)
None of the above
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question_answer 47) A convergent lens of focal length 5 cm is used as a magnifying glass. If the image is formed at infinity. The magnifying power will be
A)
5
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B)
4
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C)
6
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D)
10
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question_answer 48) A ray of light is incident surface of a plate of glass of refractive index 1.5 at polarising angle. The angle of refraction of the ray will be
A)
\[60.2{}^\circ \]
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B)
\[16.8{}^\circ \]
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C)
\[43.7{}^\circ \]
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D)
\[33.7{}^\circ \]
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question_answer 49)
The charge on capacitors shown in figure and the potential difference across each will be respectively
A)
\[\text{24}0\mu \text{C},\text{8}0\mu \text{C},\text{16}0\mu \text{C and 8}0\text{ V},\text{ 4}0\text{ V},\text{ 4}0\text{V}\]
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B)
\[\text{3}00\mu \text{C},\text{75}\mu .\text{C},\text{15}0\mu \text{C and 4}0\text{ V},\text{ 8}0\text{ V},\text{ 6}0\text{V}\]
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C)
\[\text{22}0\mu \text{C},\text{7}0\mu \text{C},\text{14}0\mu \text{C and 6}0\text{ V},\text{ 5}0\text{ V},\text{ 4}0\text{V}\]
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D)
None of the above
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question_answer 50) A current of 5A flows through an electric press of resistance 44 Cl. The energy consumed in 5 min is
A)
\[\text{3}.\text{3}\times \text{l}{{0}^{\text{5}}}\text{J}\]
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B)
\[2.5\times {{10}^{3}}J\]
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C)
\[1.5\times {{10}^{2}}J\]
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D)
\[{{10}^{8}}J\]
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question_answer 51) The correct value of the gas constant R is close to
A)
0.082 L-atm \[{{K}^{-1}}\,mo{{l}^{-1}}\]
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B)
0.082 \[L-at{{m}^{-1}}\] K mol
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C)
0.082 L-atm K mol
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D)
0.082 \[L-at{{m}^{-1}}\] K mol
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question_answer 52) Which one is correct for de-Broglie equation?
A)
\[E=\frac{\lambda }{p}\]
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B)
\[E=\frac{h}{\lambda }\]
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C)
\[E=\frac{h}{p}\]
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D)
None of these
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question_answer 53) It is possible to obtain oxygen from air by fractional distillation because
A)
oxygen has lower density than nitrogen
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B)
oxygen is in different group of periodic table from nitrogen
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C)
oxygen is more active than nitrogen
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D)
oxygen has higher boiling point than nitrogen
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question_answer 54) The rise in the boiling point of a solution containing 1.8 g of glucose in 100 g of a solvent is \[{{0.1}^{o}}C\]. The molal elevation constant of the liquid is
A)
0.01 K/m
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B)
0.1 K/m
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C)
IK/m
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D)
10 K/m
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question_answer 55) Which one of the following will show optical activity?
A)
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B)
done
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C)
done
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D)
None of the above
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question_answer 56) If the enthalpy of vaporisation of water is 186.5 J/mol, the entropy of its vaporization will be
A)
\[0.5\,J{{K}^{-1}}\,mo{{l}^{-1}}\]
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B)
\[1.0\,J{{K}^{-1}}\,mo{{l}^{-1}}\]
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C)
\[1.5\,J{{K}^{-1}}\,mo{{l}^{-1}}\]
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D)
\[2.0\,J{{K}^{-1}}\,mo{{l}^{-1}}\]
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question_answer 57) Gibbs free energy G, enthalpy H, and entropy are related as
A)
\[G-TS=H\]
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B)
\[G=H+TS\]
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C)
\[S=H-G\]
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D)
\[G=H-TS\]
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question_answer 58) Which one of the following plots is true for the first order decomposition of \[\,{{N}_{2}}{{O}_{5}}\]?
A)
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B)
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C)
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D)
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question_answer 59) The half-life period for a zero order reaction is
A)
\[{{t}_{1/2}}\propto {{a}^{3}}\]
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B)
\[{{t}_{1/2}}\propto {{a}^{2}}\]
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C)
\[{{t}_{1/2}}\propto a\]
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D)
\[{{t}_{1/2}}\propto \frac{1}{a}\]
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question_answer 60) Which one of the following statements is correct for a positive catalyst?
A)
It initiates the reaction
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B)
It changes the state of equilibrium in favour of formation of product
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C)
It provides an alternative reaction path of lower activation energy
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D)
It provides activation energy to the reactants
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question_answer 61) The IUPAC name of the compound \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}-\underset{\begin{smallmatrix} || \\ O \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\] based on latest nomenclature system is
A)
pentanone-2
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B)
pentan-2-one
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C)
2-pentanone
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D)
All of these
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question_answer 62) In the elimination reactions, the reactivity of alkyl halides follows the sequence
A)
\[R-F>R-I>R-Br>R-Cl\]
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B)
\[R-F>R-Cl>R-Br>R-I\]
done
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C)
\[R-I>R-Br>R-Cl>R-F\]
done
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D)
\[R-I>R-F>R-Br>R-Cl\]
done
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question_answer 63) The iodoform test is not given by
A)
\[C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ O \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{3}}\]
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B)
\[C{{H}_{3}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{2}}-C{{H}_{3}}\]
done
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C)
\[C{{H}_{3}}C{{H}_{2}}OH\]
done
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D)
\[C{{H}_{3}}C{{H}_{2}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{2}}C{{H}_{3}}\]
done
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question_answer 64) Sucrose on hydrolysis gives
A)
fructose + ribose
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B)
glucose + fructose
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C)
glucose + glucose
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D)
fructose + fructose
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question_answer 65) Which of the following has highest boiling point?
A)
\[{{(C{{H}_{3}})}_{3}}N\]
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B)
\[{{C}_{2}}{{H}_{5}}NHC{{H}_{3}}\]
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C)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}N{{H}_{2}}\]
done
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D)
\[N{{H}_{2}}C{{H}_{2}}C{{H}_{2}}N{{H}_{2}}\]
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question_answer 66) When alkyl halide reacts with aqueous sodium hydroxide to give alcohol, the reaction is called
A)
electrophilic substitution
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B)
nucleophilic substitution
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C)
free radical substitution
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D)
None of the above
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question_answer 67) Which of the following does not undergo benzoin condensation?
A)
\[{{C}_{6}}{{H}_{5}}C{{H}_{2}}CHO\]
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B)
\[{{C}_{6}}{{H}_{5}}CHO\]
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C)
done
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D)
done
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question_answer 68) The reaction between an alkyl halide and an alkoxide ion to give an ether is known as
A)
Williamsons synthesis
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B)
Clemmensens reduction
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C)
Fittig reaction
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D)
Wurtz reaction
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question_answer 69) During bleaching of chlorine an antichlor is employed to
A)
eliminate last traces of bleaching agent
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B)
remove greases from the fibre
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C)
liberate oxygen
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D)
enhance bleaching action
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question_answer 70) The proper name for \[[Co{{(N{{H}_{3}})}_{6}}]C{{l}_{3}}\]
A)
hexamine cobalt trichloride
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B)
hexamine cobalt (III) chloride
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C)
hexamoniacobalt trichloride
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D)
cobalt hexamine chloride
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question_answer 71) Sequence of acidic character is
A)
\[{{N}_{2}}{{O}_{5}}>S{{O}_{2}}>CO>C{{O}_{2}}\]
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B)
\[{{N}_{2}}{{O}_{5}}>S{{O}_{2}}>C{{O}_{2}}>CO\]
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C)
\[S{{O}_{2}}>C{{O}_{2}}>CO>{{N}_{2}}{{O}_{5}}\]
done
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D)
\[S{{O}_{2}}>{{N}_{2}}{{O}_{5}}>CO>C{{O}_{2}}\]
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question_answer 72) Which is a metalloid?
A)
Manganese
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B)
Phosphorus
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C)
Oxygen
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D)
Arsenic
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question_answer 73) The oxides, \[Cr{{O}_{3}},\,Mo{{O}_{3}}\] and \[W{{O}_{3}}\] are strongly
A)
neutral
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B)
acidic
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C)
basic
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D)
None of these
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question_answer 74) Which is the correct order of the first ionization potential of N, O and C?
A)
\[C>N>O\]
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B)
\[O>N>C\]
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C)
\[C<N>O\]
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D)
\[C>N\sim O\]
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question_answer 75) Among the following statements the incorrect one is
A)
zinc blende and iron pyrites are sulphides
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B)
calamine and siderite are carbonates
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C)
malachite and azurite are ores of copper
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D)
argentite and cuprite are oxides
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question_answer 76) The oxidation number of chlorine in \[HCl{{O}_{4}}\] is
A)
+7
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B)
+5
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C)
+3
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D)
-1
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question_answer 77) Nitrous acid reacts with \[{{H}_{2}}S{{O}_{4}}\] to give
A)
\[NO+S{{O}_{3}}\]
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B)
\[N{{O}_{2}}+S{{O}_{2}}\]
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C)
\[NO+S{{O}_{2}}\]
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D)
None of these
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question_answer 78) Pyrolusite is an ore of
A)
polonium
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B)
manganese
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C)
tin
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D)
lead
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question_answer 79) Turnbulls blue is a compound
A)
ferri cyanide
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B)
ferrous ferri cyanide
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C)
ferrous cyanide
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D)
ferri ferro cyanide
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question_answer 80) What is the composition of tear gas?
A)
\[KCl\,.\,\,MgC{{l}_{2}}24{{H}_{2}}O\]
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B)
\[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\,.\,\,n{{H}_{2}}O\]
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C)
\[C{{l}_{3}}CN{{O}_{2}}\]
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D)
\[{{K}_{4}}Fe{{(CN)}_{6}}\]
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question_answer 81) Halogen having greatest electron affinity
A)
F
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B)
Cl
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C)
Br
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D)
I
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question_answer 82) Braggs law is given by the equation
A)
\[n\lambda =2d\sin \theta \]
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B)
\[\lambda =2\,nd\sin \theta \]
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C)
\[2n\,\lambda =d\sin \theta \]
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D)
\[n\lambda =2\theta \sin \theta \]
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question_answer 83) For a reaction to occur spontaneously
A)
\[\Delta T+T\Delta S\] must be negative
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B)
\[\Delta H-T\Delta S\] must be negative
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C)
\[\Delta S\] must be negative
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D)
\[\Delta H\] must be negative
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question_answer 84) Consider the equilibrium \[{{N}_{2}}(g)+3{{H}_{2}}(g)2N{{H}_{3}}(g);\,\Delta H=-93.6\,kJ\]The maximum yield of ammonia is obtained by
A)
increase of temperature and decrease of pressure
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B)
decrease of both the temperature and pressure
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C)
increase of both the temperature and pressure
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D)
decrease of temperature and increase of pressure
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question_answer 85) For the reaction,\[PC{{l}_{5}}(g)PC{{l}_{3}}(g)+C{{l}_{2}}(g)\]
A)
\[{{K}_{p}}={{K}_{c}}[RT]\]
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B)
\[{{K}_{p}}={{K}_{c}}{{[RT]}^{2}}\]
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C)
\[{{K}_{p}}={{K}_{c}}{{[RT]}^{-1}}\]
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D)
\[{{K}_{p}}={{K}_{c}}\]
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question_answer 86) A solid is formed from atom A and B and crystallizes into a face centred cubic lattice with A at the face centred position and B at the comers of the cube. Its molecular formula is represented by
A)
\[A{{B}_{3}}\]
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B)
\[{{A}_{3}}B\]
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C)
\[A{{B}_{2}}\]
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D)
\[{{A}_{2}}B\]
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question_answer 87) Which is not deflected by magnetic field?
A)
Proton
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B)
Neutron
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C)
Electron
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D)
Positron
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question_answer 88) Which of the following pairs are correctly matched?
A)
Isoelectronics \[{{N}^{3-}},{{O}^{2-}},C{{r}^{3-}}\]
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B)
Isotones \[_{14}S{{i}^{30}}{{,}_{15}}{{p}^{31}}{{,}_{16}}{{S}^{32}}\]
done
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C)
Isotopes \[_{20}C{{a}^{40}}{{,}_{19}}{{K}^{40}}\]
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D)
Isobars \[_{8}{{O}^{16}}{{,}_{8}}{{K}^{17}}{{,}_{8}}{{O}^{18}}\]
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question_answer 89) The weight of 11.2 L of \[C{{O}_{2}}\] at STP would be
A)
22 g
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B)
32 g
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C)
44 g
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D)
88 g
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question_answer 90) Addition of cone. \[HCl\] to saturated \[BaC{{l}_{2}}\]solution precipitates \[BaC{{l}_{2}}\]: because
A)
at constant temperature, the product \[[B{{a}^{2+}}]\,\,.\,C{{l}^{-2}}{{]}^{2}}\] remains constant in a saturated solution
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B)
ionic product \[[B{{a}^{2+}}]\,\,.\,\,[C{{l}^{-}}]\] remains constant in a saturated collection
done
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C)
the ionic product \[[B{{a}^{2+}}]\,{{[C{{l}^{-2}}]}^{2}}\] is greater than solubility product
done
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D)
it follows from Le-Chateliers principle
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question_answer 91) Which of the following will occur if a 0.1 M solution of a weak acid is diluted to 0.01 M at constant temperature?
A)
\[{{K}_{a}}\] will increase
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B)
pH will decrease
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C)
Percent ionisation increase
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D)
\[[{{H}^{+}}]\] will decrease to 0.01 M
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question_answer 92) In the equilibrium \[AB(s)A(g)+B(g)\] If the equilibrium concentration of A is doubled, the equilibrium concentration of B would become
A)
half
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B)
twice
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C)
\[\frac{1}{8}th\]
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D)
\[\frac{1}{4}th\]
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question_answer 93) The standard reduction potentials of some electrodes are \[{{E}^{o}}_{({{K}^{+}},K)}=-2.9\,V;\] \[{{E}^{o}}_{(Z{{n}^{2+}},Zn)}=-0.76\,\,V\] \[{{E}^{o}}_{\left( {{H}^{+}},\frac{1}{2}{{H}_{2}} \right)}=-0.0\] \[{{E}^{o}}_{(C{{u}^{2+}},Cu)}=-0.0\] The electrode acting as strong reductant is
A)
K
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B)
Cu
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C)
Zn
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D)
\[{{H}_{2}}\]
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question_answer 94) The freezing points of equimolar solutions of glucose, \[KN{{O}_{3}}\] and \[AlC{{l}_{3}}\] are in the order of
A)
\[AlC{{l}_{3}}<\] glucose \[<KN{{O}_{3}}\]
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B)
\[AlC{{l}_{3}}<KN{{O}_{3}}<\] glucose
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C)
glucose \[<KN{{O}_{3}}<AlC{{l}_{3}}\]
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D)
glucose \[<AlC{{l}_{3}}<KN{{O}_{3}}\]
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question_answer 95) What will be the molarity of a solution containing 5.0 g of \[NaOH\]in 250 mL solution?
A)
0.1
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B)
0.5
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C)
1.0
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D)
2.0
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question_answer 96) Which one of the following is the correct decreasing order of boiling point?
A)
\[{{H}_{2}}Te>{{H}_{2}}O>{{H}_{2}}Se>{{H}_{2}}S\]
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B)
\[{{H}_{2}}O>{{H}_{2}}S>{{H}_{2}}Se>{{H}_{2}}Te\]
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C)
\[{{H}_{2}}Te>{{H}_{2}}Se>{{H}_{2}}S>{{H}_{2}}O\]
done
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D)
\[{{H}_{2}}O>{{H}_{2}}Te>{{H}_{2}}Se>{{H}_{2}}S\]
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question_answer 97) van der Waals forces are applied to
A)
elementary gases only
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B)
mixture of gases
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C)
inert gases only
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D)
rare gases only
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question_answer 98) Among the following the most highly ionized in water is
A)
\[C{{H}_{2}}(Cl)C{{H}_{2}}C{{H}_{2}}COOH\]
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B)
\[C{{H}_{3}}C{{H}_{2}}CC{{l}_{2}}COOH\]
done
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C)
\[C{{H}_{3}}CH(Cl)C{{H}_{2}}COOH\]
done
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D)
\[C{{H}_{3}}C{{H}_{2}}CH(Cl)COOH\]
done
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question_answer 99) Sangars reagent is
A)
\[{{C}_{2}}{{H}_{5}}NH.N{{H}_{2}}\]
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B)
done
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C)
done
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D)
done
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question_answer 100) Geometrical isomerism is shown by
A)
done
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B)
done
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C)
done
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D)
done
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question_answer 101) Bulk of RNA is synthesized in a cell during
A)
S - phase
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B)
\[{{G}_{1}}\]- phase
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C)
\[{{G}_{2}}\]- phase
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D)
M - phase
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question_answer 102) Other than DNA polymerase, which are the enzymes involved in DNA synthesis?
A)
Topoisomerase
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B)
Helicase
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C)
RNA primase
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D)
All of the above
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question_answer 103) Which constitution is correct?
A)
RNA polymerase\[\to {{\alpha }_{2}}\beta {{\beta }^{1}}\delta \left( E.coli \right)\]
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B)
RNA polymerase\[\to {{\alpha }_{2}}\beta {{\beta }^{1}}\left( E.coli \right)\]
done
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C)
RNA polymerase\[\to {{\alpha }_{2}}\beta {{\beta }^{1}}\sigma \left( E.coli \right)\]
done
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D)
RNA polymerase\[\to {{\alpha }_{2}}{{\beta }^{2}}\sigma \left( E.coli \right)\]
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question_answer 104) The concept of "biological species" was proposed by
A)
Carolus Linnaeus
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B)
Darwin
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C)
E Mayer
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D)
Von Baer
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question_answer 105) In an experiment, an Amoeba was transferred from a container A to container B, Amoeba developed a contractile vacuole. However, the vacuole disappeared again when the Amoeba was transferred back to container A. The container A and B respectively contained
A)
fresh and marine water
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B)
marine and freshwater
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C)
Both contained freshwater
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D)
Both contained marine water
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question_answer 106) In normal atmosphere, the amount of oxygen in air and dissolved oxygen in water respectively are
A)
21% and 17%
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B)
95% and 15%
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C)
32% and 7%
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D)
67% and 13%
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question_answer 107) What is detected in the urine of a woman to confirm pregnancy?
A)
Progesterone
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B)
Insulins
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C)
HCG
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D)
Oxytocins
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question_answer 108) Which of these bile products is not used in the solubilization?
A)
Bile salts
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B)
Cholesterol
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C)
Lecithin
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D)
Bile pigments
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question_answer 109) Vitamin-A can be synthesized inside the body by
A)
stomach
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B)
pancreas
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C)
liver
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D)
spleen
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question_answer 110) One mg of thyroxin increases the metabolic rate to about
A)
2.5%
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B)
5%
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C)
10%
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D)
15%
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question_answer 111) Which of the following vitamins is used in electron transport system?
A)
Calciferol
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B)
Thiamine
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C)
Riboflavin
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D)
Ascorbic acid
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question_answer 112) Protein C, which inactivates factor VIII and thereby partly inhibits the clotting mechanism is activated by
A)
tissue factor pathway inhibitor
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B)
thrombin
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C)
antithrombin - III
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D)
heparin
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question_answer 113) The fusion of paternal and maternal sets of chromosomes of haploid gametes is known as
A)
amphimixis
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B)
coition
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C)
synkaryon
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D)
insemination
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question_answer 114) Which one of the following genotype has one barr body?
A)
XY
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B)
XX
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C)
XXX
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D)
XYY
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question_answer 115) In evolution, the resemblance between widely different or animals due to common adaptation may referred to as an example of
A)
convergent evolution
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B)
molecular analogy
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C)
molecular homology
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D)
homoplastic appearance
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question_answer 116) The interaction between a particular kind of organism and its environment is called
A)
ecosystem
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B)
niche
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C)
adaptation
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D)
biome groups
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question_answer 117) Excessive pulling of ligaments between two bones cause
A)
fracture of the bones
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B)
sprain
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C)
breakage of the muscles
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D)
All of the above
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question_answer 118) Which of the vitamins cant be deposited Inside the body?
A)
Ascorbic acid
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B)
Calciferol
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C)
Vitamin-K
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D)
Retinol
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question_answer 119) Oenothera type of female gametophyte is always
A)
8 nucleate and 7 celled
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B)
16 nucleate and 13 celled
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C)
8 nucleate and 8 celled
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D)
4 nucleate and 4 celled
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question_answer 120) It is matter of common observation that monocots and dicots have one and two cotyledons respectively but in gymnosperms the number of cotyledons are
A)
always 3
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B)
3-8
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C)
2-5
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D)
variable 1-2
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question_answer 121) The neck of archegonium of Pinus roxburghii is made up of
A)
8 cells arranged in 4 tiers of 2 cells each
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B)
8 cells arranged in 2 tiers of 4 cells each
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C)
4 cells arranged in 2 tiers of 2 cells each
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D)
4 cells arranged in a single tier
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question_answer 122) If sporangia are developed from a single Initial cell, the development of sporangia is designated as
A)
eusporangiate
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B)
leptosporangiate
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C)
monosporangiate
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D)
polysporangiate
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question_answer 123) Turpentine oil, which is one of the most important raw material of paint and varnish industry is the product obtained from
A)
fractional distillation of petroleum
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B)
destructive distillation of wood
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C)
alpine forest
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D)
None of the above
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question_answer 124) TLV (Threshold Limit Value) of methyl isocynate is
A)
0.002 ppm
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B)
0.02 ppm
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C)
0.2 ppm
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D)
0.005 ppm
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question_answer 125) Like angiospermic parasite such as Cuscuta, there are some parasitic forms of Rhodophyta, which are colourless, heterotrophic and grow on other members of Rhodophyta. Select which one is a parasitic form of red algae?
A)
Gelidium
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B)
Harveyella
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C)
Choridras
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D)
Both (a) and (b)
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question_answer 126) In the vast marine ecosystem, certain sea develops red coloration. This red color is due to the presence of large population of which one of the following organisms?
A)
Trichodesmium erythrium
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B)
Physarium
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C)
Dinoflagellates
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D)
Diatoms and members of red algae
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question_answer 127) Megasporophylls, which are arranged spirally and acropetally on the central axis of the female cone of Pinus bear
A)
4 megasporangia on dorsal surface
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B)
2 megasporangia on ventral surface
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C)
2 megasporangia on dorsal surface
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D)
4 megasporangia on ventral surface
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question_answer 128) In Pinus roxburghii, the common pine tree, microsporophyll is having
A)
2 microsporangia on abaxial side of microsporophyll
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B)
4 microsporangia on abaxial side of microsporophyll
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C)
2 microsporangia on adaxial side of microsporophyll
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D)
4 microsporangia on adaxial side of microsporophyll
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question_answer 129) The structure, capable of stretching many times of its size, is
A)
lungs
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B)
stomach
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C)
uterus
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D)
pupil of the eye
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question_answer 130) The recapitulation theory or biogenetic law was proposed by
A)
Ernst Haeckel
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B)
Von Baer
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C)
Weismann
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D)
Mendel
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question_answer 131) The nucleolus is the site of formation of
A)
spindle fibres
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B)
chromosomes
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C)
ribosomes
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D)
peroxysomes
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question_answer 132) Klinefelters syndrome occurs because of
A)
presence of extra X-chromosome in male
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B)
presence of only one X-chromosome in female
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C)
presence of extra XY-chromosome in male
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D)
presence of extra Y-chromosome in male
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question_answer 133) RNA differs from DNA in having
A)
thymine
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B)
deoxyribose sugar
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C)
uracil
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D)
cytosine
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question_answer 134) Both DNA and RNA are present in
A)
bacteria
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B)
higher organisms
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C)
bacteria and higher organisms
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D)
None of the above
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question_answer 135) "One gene one polypeptide chain" theory was proposed by
A)
G W Beadle and E L Tatum
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B)
Khorana and Nirenberg
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C)
Watson and Komberg
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D)
Vemon M Ingram
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question_answer 136) The phenomenon of heterophylly, where 2 different types of leaves are found is exhibited in which one of the following plants?
A)
Utricularia
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B)
Limnophila heterophylla
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C)
Cabomba stellaris
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D)
None of the above
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question_answer 137) Ligulate leaves are found in
A)
Myrtaceae
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B)
Asteraceae
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C)
Poaceae
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D)
Cyperaceae
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question_answer 138) The botanical name of cauliflower is
A)
Brassica oleracea var. copitata
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B)
Brassica oleracea var. botrytis
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C)
Brassica oleracea var. gongylodis
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D)
Brassica oleracea
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question_answer 139) Hypanthodium inflorescence is commonly found in which one of the following plants?
A)
Ficus sp.
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B)
Brassica (cauliflower)
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C)
Polyalthia (ashok)
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D)
None of the above
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question_answer 140) Reindeer moss, which is the most important and stable food for reindeer in Arctic region belongs to which group of Plantae?
A)
Algae
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B)
Bryophyta
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C)
Lichens
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D)
Pteridophyta
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question_answer 141) A rapid transformation from larval to adult form, in which destruction of some larval tissues and formation of adult organs occur is called
A)
metaphase
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B)
metamorphosis
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C)
metaphysic
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D)
metathorax
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question_answer 142) Critical state of disease is called
A)
acne
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B)
acromion
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C)
acholin
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D)
None of these
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question_answer 143) Electrostatic precipitators are extensively employed to control
A)
water pollution
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B)
air pollution
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C)
radioactive pollution
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D)
None of the above
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question_answer 144) Under the umbrella of social forestry, a system has been launched, in which agriculture and forestry are involved. Select the name of the system.
A)
Block cutting system
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B)
Jhum cultivation system
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C)
Taungaya system
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D)
None of the above
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question_answer 145) One of the most important raw material for paper and pulp industry comes from our vast forest resources, select the source for paper and pulp industry extensively used in our country
A)
Picea sp.
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B)
Pinus sp.
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C)
Populus sp.
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D)
All of these
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question_answer 146) Out of various resources of forest in out vast country, which one of the following is used as a basic raw material for biri industry?
A)
Diospyros cordifolia
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B)
Diospyros melanoxylon
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C)
Diospyros ebenum
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D)
None of the above
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question_answer 147) Ectomycorrhiza is commonly found in
A)
Pinus
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B)
Quercus
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C)
Rhododendron
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D)
Both (a) and (b)
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question_answer 148) Parthenium argenatatum, which is commonly known as guayule provides, which one of the following commercial products?
A)
Para-rubber
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B)
A product equivalent to para-rubber
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C)
Chewing-gum
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D)
Jojoba oil
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question_answer 149) Castor oil is obtained from
A)
Acacia nilotica
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B)
Simmondsia chinensis
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C)
Ricinus communis
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D)
Both (a) and (b)
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question_answer 150) Select the correct botanical name of Subabul, which is extensively employed in social forestry programme as an excellent source of fast growing fuel and fodder yielding medium sized tree.
A)
Acacia nilotica
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B)
Leucas aspera
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C)
Leucaena leucocephala
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D)
Prosopis spicigera
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question_answer 151) If Ca of 2-celled proembryo divides longitudinally and the Ca and Cb both contribute to the development of embryo, this type of embryogeny would be called as
A)
onagrad type
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B)
asterad type
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C)
solanad type
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D)
Both (a) and (b)
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question_answer 152) If Ca of 2-celled proembryo divides transversely the embryogeny would be
A)
solanad and asterad type
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B)
chenopodial and onagrad type
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C)
caryophyllad and onagrad type
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D)
solanad and chenopoldial type
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question_answer 153) What would be the chromosome number of endosperm if it is developed from Oenothera type of embryo sac possessing chromosome number equal to 16 (haploid)?
A)
32 (diploid)
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B)
48 (triploid)
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C)
16 (haploid)
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D)
None of these
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question_answer 154) If the chromosome number of cells of nucellus of megasporangium of Pinus is 16 (sixteen), what would be the chromosome number of endosperm cells?
A)
32
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B)
16
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C)
48
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D)
08
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question_answer 155) Which one of the following is the most common type of embryo sac?
A)
Allium type
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B)
Oenothera type
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C)
Polygonum type
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D)
Adoxa type
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question_answer 156) Mucilaginous polysaccharide commonly called as carrageenin and which is extensively used in various industries is obtained from
A)
Gelidium
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B)
Laminaria
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C)
Chondrus
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D)
Gradlaria
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question_answer 157) Symbiotic association between fungal hyphae and the roots of Pinus is known as
A)
mycorrhiza
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B)
mycophagy
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C)
mycobiont
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D)
Both (a) and (b)
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question_answer 158) The characteristic cell wall material peptidoglycan has another covering of lipopolysaccharides. This specialized condition is found in
A)
eubacteria Gram positive
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B)
eubacteria Gram negative
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C)
all eukaryotes
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D)
Both (a) and (b)
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question_answer 159) Goldfussia in which two different size of leaves are found is an excellent example of
A)
heterophylly
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B)
anisophylly
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C)
distichous
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D)
None of these
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question_answer 160) The prickly pear plant, which is botanically named as Opuntia is an excellent example of
A)
phyllode
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B)
cladode
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C)
phylloclade
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D)
None of these
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question_answer 161) If a dry fruit is developed from bicarpellary syncarpous, inferior ovary with a single basally placed ovule, the fruit would be called as
A)
caryopsis
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B)
cypsela
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C)
capsule
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D)
siliqua
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question_answer 162) If a fruit is developed from (\[\overline{2G}\]), bilocular with one ovule in each locule and pendulously attached and the wall of the ovary possesses vittae, the fruit is designated as
A)
caryopsis
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B)
cypsela
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C)
cremocarp
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D)
capsule
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question_answer 163) If a fruit is developed from an inferior bicarpellary, syncarpous, unilocular ovary, the seed coat is free from the pericarp, the fruit would be called
A)
cypsela
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B)
silicula
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C)
siliqua
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D)
sorosis
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question_answer 164) If a fruit is developed from (\[\overline{2G}\]) ovary with parietal placentation, unilocular when young but becoming 2-locular with age and the appearance of the fruit so developed is pod like, the fruit would be grouped under
A)
lomentum
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B)
siliqua
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C)
silicula
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D)
capsule
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question_answer 165) Increasing accumulation of DDT in organisms of a food chain in higher trophic level is known as
A)
biological magnification
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B)
biotic potential
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C)
biotic component
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D)
None of the above
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question_answer 166) If the anthers are fused to form a tubular structure, whereas the filaments remain free- the condition is termed as
A)
epipetalous
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B)
syngenesious
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C)
polyandrous
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D)
None of these
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question_answer 167) If the anthers are fused together forming a tubular structure while the filaments remain free, the condition is found in which one of the following family?
A)
Malvaceae
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B)
Cucurbitaceae
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C)
Solanaceae
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D)
Asteraceae
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question_answer 168) If both the anthers and filaments are fused together to form a compact structure with sigmoid appearance the condition is termed a
A)
syngenesious
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B)
androecious
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C)
syngynandrous
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D)
synandrous
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question_answer 169) The enzyme used for joining two DNA fragments is called
A)
ligase
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B)
restriction endonuclease
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C)
DNA polymerase
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D)
gyrase
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question_answer 170) There are certain plant species, which flower only once in their life span. This condition is named as
A)
polygamous
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B)
polycarpic
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C)
monocarpic
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D)
pericarpic
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question_answer 171) If an angiospermic plant produces unisexual and bisexual flowers on the same plant , the condition would be termed as
A)
dioecious
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B)
trioecious
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C)
polygamous
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D)
andro - gynoecious
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question_answer 172) Ligulate flowers are the diagnostic character which one of the following family?
A)
Poaceae
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B)
Asteraceae
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C)
Brassicaceae
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D)
Papilionaceae
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question_answer 173) In opposite phyllotaxy, if the leaves are of different size and arranged alternately, the phenomenon is termed as
A)
distichous
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B)
pentastichous
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C)
anisophylly
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D)
heterophylly
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question_answer 174) A funnel shaped stigma is found in
A)
Grasses
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B)
Crocus
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C)
Malvestrum
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D)
Papaver
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question_answer 175) A child has the blood group 0. The possible genotypes of his parents are
A)
\[{{I}^{A}}{{I}^{B}}\times {{I}^{A}}{{I}^{O}}\]
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B)
\[{{I}^{O}}{{I}^{O}}\times {{I}^{A}}{{I}^{A}}\]
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C)
\[{{I}^{A}}{{I}^{B}}\times {{I}^{O}}{{I}^{O}}\]
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D)
\[{{I}^{B}}{{I}^{O}}\times {{I}^{A}}{{I}^{O}}\]
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question_answer 176) Which animal has its blood composition nearly the same as of man?
A)
Gorilla
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B)
Rhesus monkey
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C)
Chimpanzee
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D)
Baboon
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question_answer 177) The change in the partial pressure of \[C{{O}_{2}}\]in blood is determined by
A)
carotid sinus
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B)
carotid bodies
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C)
surface of lungs
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D)
Both (a) and (b)
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question_answer 178) In man regulation of respiration and heart beat is maintained by
A)
cerebrum
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B)
medulla oblongata
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C)
cerebellum
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D)
spinal cord
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question_answer 179) The aquaduct of sylvius connects
A)
1st and 2nd ventricles
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B)
2nd and 3rd ventricles
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C)
3rd and 4th ventricles
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D)
4th ventricle and central canal
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question_answer 180) Which is more efficient medium for oxygen uptake in respiration?
A)
Aquatic
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B)
Aerial
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C)
Marine
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D)
Esturine
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question_answer 181) Fine blood capillaries seen on reddening of the eyes are spread over
A)
pupil
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B)
conjunctiva
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C)
eyelid lining
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D)
None of these
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question_answer 182) Kupffer cells are found in
A)
spleen
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B)
liver
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C)
lung alveoli
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D)
blood
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question_answer 183) Estimated length of blood vessels in a human is
A)
1160 km
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B)
5100 km
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C)
1080 km
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D)
80,600 km
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question_answer 184) Estrogen is secreted by
A)
pituitary gland
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B)
adrenal gland
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C)
Graafian follicle
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D)
placenta
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question_answer 185) William Harvey explained many aspects of human physiology one of them was
A)
digestive system
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B)
circulation of blood
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C)
blood group
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D)
None of the above
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question_answer 186) Deficiency of vasopressin (ADH) leads to
A)
diabetes mellitus
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B)
diabetes insipidus
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C)
Graves disease
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D)
goiter
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question_answer 187) Body temperature of many animals corresponds to the environmental temperature. They are known as
A)
heterothermic
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B)
homoeothermic
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C)
endothermic
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D)
poikilothermic
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question_answer 188) In a DNA molecule
A)
nitrogenous bases are bonded covalently to phosphate groups
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B)
pentose sugars are bonded ionically to the nitrogenous bases
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C)
pentose sugars are bonded by hydrogen bonds to the nitrogenous bases
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D)
nitrogenous bases are bonded to each other by hydrogen bonds
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question_answer 189) Which is the wrong combination?
A)
Landsteiner - Blood group
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B)
Chargaff and Davidson - A = T, C = G
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C)
Watson and Crick - DNA structure
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D)
None of the above
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question_answer 190) Cornea is covered externally by a thin transparent membrane, which is
A)
sclerotic
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B)
conjunctiva
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C)
choroid
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D)
None of these
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question_answer 191) Which one of the following is an important food element for growth and repair of tissues?
A)
Vitamin-C
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B)
Protein
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C)
Glucose
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D)
Potassium
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question_answer 192) The collection of various types of molecules in a cell is called
A)
primordial soup
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B)
cellular broth
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C)
cellular pool
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D)
molecular broth
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question_answer 193) Which one of the following is an essential fatty acid?
A)
Linoleic acid
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B)
Sulphuric acid
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C)
Nitric acid
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D)
None of these
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question_answer 194) Select the most successful group of organism on the surface of our globe
A)
Gram positive heterotrophs
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B)
Gram negative photosynthetic cyanobacteria
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C)
chemoautotrophic bacteria
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D)
photoautotrophic bacteria
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question_answer 195) The algal component of foliose lichen is termed as
A)
phycosymbiont
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B)
phycobiont
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C)
mycobiont
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D)
ascolichen
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question_answer 196) The enzyme used in the beverage industry to flavour soft drinks and in the baking industry to sweeten the biscuits and cakes
A)
glycoamylase
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B)
amylase
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C)
proteases
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D)
glucoamylase
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question_answer 197) Sickle cell anaemia is due to replacement of glutamic acid at the 6th position is
A)
lencine
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B)
valine
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C)
proline
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D)
None of these
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question_answer 198) A person may die after getting a bee sting in his body due to
A)
toxicity
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B)
coagulation of blood
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C)
anaphylactic shock
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D)
Both (a) and (b)
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question_answer 199) Colorblindness is caused by
A)
dominant gene of female
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B)
recessive gene of male
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C)
dominant gene of male
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D)
recessive gene of female
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question_answer 200) An antigen in the white blood corpuscles of man is known as
A)
HIV
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B)
HLA
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C)
AHL
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D)
LAH
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