The dominant mechanism for motion of charge carriers in forward and reverse biased silicon p-n junction are
A)
diffusion in forward biased, drift in reverse bias
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B)
drift in forward biased, drift in reverse biased
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C)
diffusion in both forward and reverse bias
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D)
drift in both forward and reverse bias
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If binding energy of electron in a hydrogen atom is 13.6 eV, then energy required to remove the electron from the first excited state of \[L{{i}^{+\,+}}\] is
A)
13.6 eV
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B)
3.4 eV
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C)
30.6 eV
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D)
122.4 eV
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Magnetic field does not cause deflection in
A)
\[\alpha -rays\]
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B)
\[\beta -rays\]
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C)
H-atom
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D)
None of these
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For a telescope, larger the diameter of the objective lens,
A)
greater is the magnifying power
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B)
greater is the resolving power
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C)
smaller is the magnifying power
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D)
smaller is the resolving power
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An X-rays tube operate at 10 kV. The ratio of X-rays wavelength to that of de-Broglie is
A)
\[1 : 10\]
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B)
\[10: 1\]
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C)
\[1 : 100\]
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D)
\[100 : 1\]
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During melting of an ice slab at 273 K at atmospheric pressure
A)
positive work is done by ice water system on the atmosphere
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B)
positive work is done on ice water system by the atmosphere
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C)
internal energy of ice water system decreases
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D)
None of the above
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The ratio of \[{{C}_{P}}\,\,and\,\,{{C}_{V}}\] depends on temperature T according to relation
A)
\[\gamma \propto T\]
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B)
\[\gamma \propto T\]
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C)
\[\gamma \propto \frac{1}{T}\]
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D)
\[\gamma \propto \sqrt{T}\]
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A body executing SHM with an amplitude A. At what displacement from the mean position is potential energy of the body is one-fourth of its total energy
A)
\[\frac{A}{4}\]
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B)
\[\frac{A}{2}\]
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C)
\[\frac{3A}{4}\]
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D)
None of these
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A capillary tube of radius R is immersed in water and water rises in it to a height H. Mass of water in capillary tube is M. If the radius of tube is doubled, mass of water that will rise in capillary will be
A)
M
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B)
\[\frac{M}{2}\]
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C)
2 M
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D)
4 M
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Two bodies of mass 1 kg and 3 kg have position vector\[\hat{i} + 2\hat{j} + \hat{k}\,\,and\,\,-3\hat{i} - 2\hat{j} + \hat{k}\], respectively. The centre of mass of this system has a position vector
A)
\[2\hat{i}\,-\hat{j}\,\,-2\hat{k}\]
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B)
\[-2\hat{i}\,-\hat{j}\,\,+\,\,\hat{k}\]
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C)
\[-\hat{i}\,+\hat{j}\,\,+\,\,\hat{k}\]
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D)
\[-\,2\hat{i}\,+2\,\,\hat{k}\]
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View Answer play_arrow
A thin circular ring of mass M and radius R is rotating in a horizontal plane about an axis vertical to its plane with a constant angular velocity co. If two objects each of mass m be attached gently to opposite ends of a diameter of the ring, the ring will then rotate with an angular velocity
A)
\[\frac{\omega M}{M+m}\]
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B)
\[\frac{\omega (M-2m)}{M+2\,m}\]
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C)
\[\frac{\omega M}{M+2\,m}\]
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D)
\[\frac{\omega (M+2m)}{M}\]
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If a faulty thermometer has its fixed points marked as \[5{}^\circ and 95{}^\circ \]. If the temperature measured by the faulty thermometer is \[59{}^\circ \], then the correct temperature of the body on Celsius scale is
A)
\[30{}^\circ C\]
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B)
\[60{}^\circ C\]
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C)
\[120{}^\circ C\]
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D)
None of these
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An open organ pipe produces fundamental note. All of a sudden, one of its ends is close [d] If again fundamental note is emitted, the frequency of note will be
A)
half
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B)
double
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C)
same
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D)
None of these
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Two spheres of the same material have radii 1 m and 4 m and temperatures 4000 K and 2000 K respectively. The ratio of energy radiated per second by the first sphere to that by the second is
A)
\[1 :1\]
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B)
\[16:1\]
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C)
\[4:1\]
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D)
\[1:9\]
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Two wires of the same length and same material but radii in the ratio of \[1:2\] are stretched by unequal forces to produce equal elongation. The ratio of forces is
A)
\[1:4\]
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B)
\[1:2\]
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C)
\[2:1\]
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D)
\[1:\sqrt{2}\]
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Which of the following is not the cause of low conductivity of electrolytes?
A)
high resistance offered by the solution to the motion of ions
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B)
ionisation of salt
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C)
low number of density of charge carriers?
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D)
low drift velocity of ions
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A ball is released from the top of a tower and exactly 1s later another ball is released. The distance between two balls 2 s after the release of second ball is\[(g =9.8 m/{{s}^{2}})\].
A)
14.5 m
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B)
24.5 m
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C)
34.5 m
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D)
None of these
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Pick out which one of these is for AND, NAND and NOT gates, respectively I.
II.
III.
IV.
A)
III, II and I
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B)
III, II and IV
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C)
II, III and IV
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D)
II, IV and III
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The equivalent resistance between points A and D is (given wire used is idle)
A)
zero
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B)
R
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C)
2 R
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D)
None of these
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The electrostatic potential V at a distance r from the centre of a charged metallic sphere of radius JR for \[\operatorname{r} < R\] will vary according to relation
A)
\[V\propto \frac{1}{r}\]
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B)
\[V=r\]
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C)
\[V\propto \frac{1}{{{r}^{2}}}\]
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D)
\[V\propto {{r}^{0}}\]
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View Answer play_arrow
Three capacitors of equal capacity C are connected as shown in figure, the equivalent capacitance of the combination between A and B is C
A)
C
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B)
2 C
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C)
\[\frac{C}{2}\]
done
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D)
None of these
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P, Q and R are three points in a uniform electric field. The electric potential is
A)
minimum at R
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B)
minimum at O
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C)
minimum at P
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D)
Same at all three points
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A motor pumps water continuously through a hose. Water leaves the hose with velocity v and m is the mass flowing per unit length of water jet, then the rate at which kinetic energy is imparted to water is
A)
\[\frac{1}{2}m{{v}^{2}}\]
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B)
\[\frac{1}{2}{{m}^{2}}v\]
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C)
\[\frac{1}{2}m{{v}^{3}}\]
done
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D)
\[m{{v}^{3}}\]
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View Answer play_arrow
Two bodies are thrown with same initial velocity at angles \[\theta \] and \[\left( 90{}^\circ -\theta \right)\] with horizontal. The ratio of their horizontal ranges are
A)
1
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B)
\[\frac{1}{2}\]
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C)
\[ta{{n}^{2}}\theta \]
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D)
None of these
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A 10 m long wire of resistance \[20\,\Omega \] is connected in series with a battery of emf 3 V (negligible internal resistance) and a resistance of \[10\,\Omega \]., then the potential gradient along the wire is
A)
0.1
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B)
0.2
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C)
0.4
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D)
None of these
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If the cold junction of a thermocouple is lowered then the neutral temperature
A)
decreases
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B)
increases
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C)
remains the same
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D)
approaches inversion temperature
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Two square metal plates of same thickness and material are connected in series as shown in figure. The length of B is twice the length of A. If resistance of A is represented by \[{{R}_{A}}\] and resistance of B is denoted by \[{{R}_{B}}\] then \[\frac{{{R}_{A}}}{{{R}_{B}}}\] is
A)
1
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B)
2
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C)
\[\frac{1}{2}\]
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D)
None of these
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A magnet of magnetic moment M is rotated through \[360{}^\circ \] in a magnetic field H, the work done will be
A)
0
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B)
2 MH
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C)
- MH
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D)
-2 MH
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View Answer play_arrow
Earth's magnetic field always has a horizontal component except at
A)
magnetic pole
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B)
equator
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C)
\[\operatorname{at} altitude of 60{}^\circ \]
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D)
\[\operatorname{at} altitude of 45{}^\circ \]
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What is self-inductance of a coil which produces 5 V, when current in it changes from 3 A to 2 A in one millisecond.
A)
5 mH
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B)
5 H
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C)
50 H
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D)
- 5 mH
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A voltmeter has a resistance of G Ohm and range of V volt. The value of resistance used in series to convert it into a voltmeter of range nV volt is
A)
nG
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B)
\[\frac{G}{(n-1)}\]
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C)
\[\left( n-1 \right)G\]
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D)
\[\frac{G}{n}\]
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A particle of mass \[{{m}_{1}}\] is moving with a velocity \[{{v}_{1}}\] and another particle of mass \[{{m}_{2}}\] moving with a velocity\[{{v}_{2}}\]. Both of them have same momentum but different kinetic energy \[{{E}_{1}}\,\,and\,\,{{E}_{2}}\] respectively. If \[{{m}_{1}}\,\,>\,\,{{m}_{2}}\], then
A)
\[{{E}_{1}}>{{E}_{2}}\]
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B)
\[{{E}_{1}}={{E}_{2}}\]
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C)
\[\frac{{{E}_{1}}}{{{E}_{2}}}=\frac{{{m}_{1}}}{{{m}_{2}}}\]
done
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D)
\[{{E}_{1}}<{{E}_{2}}\]
done
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View Answer play_arrow
A 5 m aluminum wire \[\left( y=7\times 1{{0}^{10}}N/{{m}^{2}} \right)\] of diameter 3 mm supports a 40 kg mass. In order to have same elongation in a copper wire \[\left( Y=12\times 1{{0}^{10}}N/{{m}^{2}} \right)\] of same length under same weight, the diameter should be, in mm
A)
2.0
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B)
2.3
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C)
1.75
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D)
5.0
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A transverse wave is represented by the equation\[\operatorname{y}={{y}_{0}}\,\,sin\,\frac{2\pi }{\lambda }\,(vt-x)\]. For what value of is maximum particle velocity equal to two times of the wave velocity
A)
\[\lambda =2\pi \,{{y}_{0}}\]
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B)
\[\lambda =\pi \,{{y}_{0}}\]
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C)
\[\lambda =\frac{\pi \,{{y}_{0}}}{3}\]
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D)
\[\lambda =\frac{\pi \,{{y}_{0}}}{2}\]
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If angle between two vectors X and Y is \[120{}^\circ \], then its resultant Z will be
A)
\[\left| Z \right|=\left| X\,-Y \right|\]
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B)
\[\left| Z \right|<\left| X\,-Y \right|\]
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C)
\[\left| Z \right|>\left| X\,\,-\,\,Y \right|\]
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D)
\[\left| Z \right|=\left| X+Y \right|\]
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If length of rod X is \[\left( 2.25 \pm 0.02 \right)\]cm and that of Y is \[\left( 5.19 \pm 0.02 \right)\] cm, then rod Y is longer then rod X by
A)
\[\left( 2.94 \pm 0.02 \right)\]
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B)
\[\left( 2.94 \pm 0.00 \right)\]
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C)
\[\left( 2.94 \pm 0.04 \right)\]
done
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D)
None of these
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If a radioactive nucleus decays by two different processes, the half-life for first process is \[{{t}_{1}}\] and for second process it is \[{{t}_{2}}\], then the effective half-life t of the nucleus is given by
A)
\[t={{t}_{1}}+{{t}_{2}}\]
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B)
\[\sqrt{t}=\sqrt{{{t}_{1}}}+\sqrt{{{t}_{2}}}\]
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C)
\[{{t}^{-1}}=t_{1}^{-1}+t_{2}^{-1}\]
done
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D)
None of these
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View Answer play_arrow
A TV tower has a height of 80m. If average density of population is 3000 persons per \[k{{m}^{2}}\], then the population covered by TV tower is
A)
40 lakh
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B)
80 lakh
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C)
96 lakh
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D)
192 lakh
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What will be the time constant for the given circuit?
A)
RC
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B)
2.5 RC
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C)
1.2 RC
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D)
6 RC
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Two particles 1 and 2 of masses \[{{M}_{1}}\,\,and\,\,{{M}_{2}}\] respectively enter in a uniform magnetic field as shown in figure. If \[{{v}_{1}}\,\,and\,\,{{v}_{2}}\] are their respective velocities then (assume both particles have same charge)
A)
\[{{M}_{1}}{{v}_{1}}<{{M}_{2}}{{v}_{2}}\]
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B)
\[{{M}_{1}}{{v}_{1}}>{{M}_{2}}{{v}_{2}}\]
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C)
\[{{M}_{1}}{{v}_{1}}={{M}_{2}}{{v}_{2}}\]
done
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D)
None of these
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The effective resistance of 'n' number of resistors when connected in parallel is A ohm. If one of the resistor is removed then the effective resistance becomes B ohm, then the resistance of resistor which is removed is
A)
\[\frac{AB}{B-A}\]
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B)
\[\frac{AB}{A-B}\]
done
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C)
\[\frac{A+B}{AB}\]
done
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D)
None of these
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If the density of water at the surface of the lake is D. The bulk modulus of water is B, then the density of lake water at a depth where the pressure is n p? \[[p :atomospheric pressure]\]
A)
\[\frac{DB}{B+(n-1)p}\]
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B)
\[\frac{DB}{B-(n-1)p}\]
done
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C)
\[\frac{DB}{B+(n\,+1)p}\]
done
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D)
None of these
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If the flux linked with a circuit is given by\[\phi ={{t}^{3}}+3t-t\]. The graph between time (x- axis) and induced emf (y - axis) will be a
A)
straight line through the origin
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B)
straight line with positive intercept
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C)
parabola through origin
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D)
parabola not through origin
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Relative permittivity and permeability of a material are \[{{\varepsilon }_{r}}\,\,and\,\,{{\mu }_{r}}\] respectively. Which of the following values of these quantities are allowed for a diamagnetic material?
A)
\[{{\varepsilon }_{r}} = 0.5, \,{{\mu }_{r}} = 1.5\]
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B)
\[{{\varepsilon }_{r}} = 1.5, \,{{\mu }_{r}} = 0.5\]
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C)
\[{{\varepsilon }_{r}} = 0.5, \,{{\mu }_{r}} = 0.5\]
done
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D)
\[{{\varepsilon }_{r}} = 1.5, \,{{\mu }_{r}} = 1.5\]
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A length of wire carries a steady current. It is bent first to form a circular of one turn. The same length is now bent more sharply to give a double loop of smaller radius. The magnetic field at centre caused by the same current is
A)
double of its first value
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B)
quarter of its first value
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C)
four times of its first value
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D)
same as the first value
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Today artificial sweeteners and other sugar substitutes are found in a variety of food and beverages marketed as 'sugar-free'. Which of the following is most powerful artificial sweetener?
A)
Saccharin
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B)
Aspartame
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C)
Alitame
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D)
Sucralose
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A greenhouse gas is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of greenhouse effect. Among the following which one is not a greenhouse gas?
A)
\[C{{O}_{2}}\]
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B)
\[C{{H}_{4}}\]
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C)
\[{{O}_{2}}\]
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D)
Vapour of water
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Nyctalopia also called 'Night Blindness' is a condition making it difficult or impossible to see in relative low light. It is symptom of several eye diseases. It may exist from birth, or be caused by injury or malnutrition. It is caused in human due to deficiency of vitamin
A)
A
done
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B)
B
done
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C)
C
done
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D)
D
done
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Those polymers which get decomposed by the process of biodegradation are known as biodegradable polymer. Among the following, the biodegradable polymer is
A)
cellulose
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B)
polyethene
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C)
PVC
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D)
nylon 6
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The shapes of \[NO_{3}^{-}\] and \[NO_{3}^{-\,\,-}\] are
A)
triangular planar
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B)
tetrahedral and triangular planar respectively
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C)
tetrahedral
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D)
angular and triangular planar respectively
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Compare the acidic strength of reaction product, B with respect to phenol, A and choose the correct order. Chemical reaction is
A)
\[A > B\]
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B)
\[A < B\]
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C)
\[A = B\]
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D)
None of these
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What will be correct stereochemistry of product obtained on reaction ofbut-2-ene with\[OS{{O}_{4}}\]?
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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View Answer play_arrow
Product obtained on reaction 2-methyl cyclohexene with mCPBA followed by hydrolysis is
A)
done
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B)
done
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C)
done
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D)
done
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View Answer play_arrow
Which of the following is the product of Hofmann elimination of?
A)
done
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B)
done
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C)
done
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D)
done
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View Answer play_arrow
Which of the following will give positive carbylamine test?
A)
N, N-diethyl aniline
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B)
N methyl propyl amine
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C)
N, N-diethyl butyl amine
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D)
2, 4-dimethyl aniline
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View Answer play_arrow
IUPAC name of A is
A)
3 methyl 2 chloro butanoic acid
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B)
2 methyl 3 chloro butanoic acid
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C)
3 chloro 2 methyl butanoic acid
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D)
2 chloro 3 carboxy, 2, 3-dimethyl propane
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Choose the process involved in the separation of ortho and paro nitrophenol and the reason behind respectively.
A)
steam distillation, metallic bonding
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B)
sublimation, Hydrogen bonding
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C)
steam distillation, van der Waal?s forces
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D)
steam distillation, Hydrogen bonding
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View Answer play_arrow
\[CH\equiv CH\,\,\xrightarrow{{{O}_{3}}\,/\,NaOH}\,\,X\,\xrightarrow{Zn\,/\,C{{H}_{3}}COOH}\,Y\],Y is
A)
done
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B)
\[C{{H}_{3}}C{{H}_{2}}OH\]
done
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C)
\[{{\operatorname{CH}}_{3}}COOH\]
done
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D)
\[{{\operatorname{CH}}_{3}}OH\]
done
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View Answer play_arrow
Which one of the following is correct order?
A)
\[~-OH >-OR\left( order of -l effect \right)\]
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B)
\[-C{{H}_{3}} > C{{O}_{3}} > CC{{l}_{3}} \left( order of +l power \right)\]
done
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C)
\[-F> -OH > -N{{H}_{2}} \left( order of -l effect \right)\]
done
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D)
\[-NO - S{{O}_{2}}R - S{{O}_{3}}H - N{{O}_{2}} \left( set of\,\,meta\,\,directors \right)\]
done
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View Answer play_arrow
Vitamin \[\operatorname{B}-12\] also called coalmen is a water soluble vitamin with a peyroline the normal functioning of the brain and nervous system and for the formation of blood. Deficiency of vitamin B-12 causes
A)
scurvey
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B)
bery-bery
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C)
night blindness
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D)
None of these
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View Answer play_arrow
Bond order of CO is equal to bond order of
A)
\[B{{e}_{2}}\]
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B)
\[O_{2}^{+}\]
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C)
\[N_{2}^{+}\]
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D)
\[N_{2}^{{}}\]
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View Answer play_arrow
Effective magnetic moment of \[C{{e}^{3+}}\] ion is
A)
zero
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B)
1.83
done
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C)
2.83
done
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D)
1.73
done
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Which of the following has highest 2 nd ionisation energy?
A)
0 6
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B)
N
done
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C)
C
done
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D)
B
done
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View Answer play_arrow
Which of the following is a lanthanide?
A)
Curium
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B)
Californium
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C)
Erbium
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D)
Amercium
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View Answer play_arrow
Magnetic moment of \[{{\operatorname{K}}_{4}} \left[ Fe {{\left( CN \right)}_{5}} \left( {{H}_{2}}O \right) \right]\] is
A)
0
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B)
4.92
done
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C)
3.87
done
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D)
2.83
done
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View Answer play_arrow
IUPAC name of \[\left[ Cr{{({{H}_{2}}O)}_{4}}C{{l}_{2}} \right]\] is
A)
tetraaquadichlorochromate
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B)
tetraaquadichlorochromium (III) chloride
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C)
tetra aquadichlorochromium (II) chloride
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D)
dichlorotetraaquachromium (III) chloride
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View Answer play_arrow
Which of the following electronic configuration is correct for chromium?
A)
\[[Ar]\,3{{d}^{4}}4{{s}^{2}}\]
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B)
\[[Ar]\,3{{d}^{5}}4{{s}^{1}}\]
done
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C)
\[[Ar]\,3{{d}^{4}}4{{s}^{1}}\]
done
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D)
\[[Ar]\,3{{d}^{5}}4{{s}^{2}}\]
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View Answer play_arrow
The magnetic quantum number of 29 electron of copper is
A)
+1
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B)
- 3
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C)
-1
done
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D)
- 2
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View Answer play_arrow
Poorest reducing agent among following is
A)
atomic hydrogen
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B)
nascent hydrogen
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C)
dihydrogen
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D)
All have same reducing strength
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View Answer play_arrow
Which of the following elements do not impart colour to flame? Ca, Mg, Li, Na, K, Rb
A)
Ca and Mg
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B)
Li and Na
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C)
K and Rb
done
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D)
Na and K
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Which of the following code is correct regarding allotrops of carbon? I. Carbon exist in more than one allotropic form II. Diamond is semiconductor while graphite is conductor III. Diamond has layered structure while graphite has tetrahedral structure IV. Diamond is non-conductor of electricity
A)
I and II are correct
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B)
II and III are incorrect
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C)
I and IV are incorrect
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D)
All are correct
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View Answer play_arrow
Bases which keep \[B{{H}_{2}}\] in monomeric form is
A)
\[N{{N}_{3}}\]
done
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B)
THF
done
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C)
DIGLYME
done
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D)
All of these
done
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View Answer play_arrow
Which of the following shows correct Lewis acidic strength order of trihalides of boron?
A)
\[BC{{l}_{3}}>BB{{r}_{3}}>B{{F}_{3}}>B{{l}_{3}}\]
done
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B)
\[B{{F}_{3}}<BB{{r}_{3}}<BC{{l}_{3}}<B{{l}_{3}}\]
done
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C)
\[B{{F}_{3}}<BC{{l}_{3}}<BB{{r}_{3}}<B{{l}_{3}}\]
done
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D)
\[B{{F}_{3}}>BC{{l}_{3}}>BB{{r}_{3}}>B{{l}_{3}}\]
done
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Which of the following is correct when water and ice are at equilibrium at temperature \[0{}^\circ C\] is?
A)
\[{{G}_{ice}}>{{G}_{{{H}_{2}}O}}\]
done
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B)
\[{{G}_{ice}}<{{G}_{{{H}_{2}}O}}\]
done
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C)
\[{{G}_{ice}}={{G}_{{{H}_{2}}O}}=0\]
done
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D)
\[{{G}_{\,ice}}={{G}_{\,{{H}_{2}}O}}\ne 0\]
done
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View Answer play_arrow
Which of the following reaction will not be affected by change in pressure?
A)
\[{{H}_{2}}+{{I}_{2}}\rightleftharpoons 2HI\]
done
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B)
\[{{N}_{2}}+3{{H}_{2}}\rightleftharpoons 2N{{H}_{3}}\]
done
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C)
\[PC{{l}_{5}}\rightleftharpoons PC{{l}_{3}}+C{{l}_{2}}\]
done
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D)
\[\operatorname{CaO}+C{{O}_{2}} \xrightarrow{{}}\,\,CaC{{O}_{3}}\]
done
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View Answer play_arrow
Among the following which one is not a redox reaction?
A)
\[{{\operatorname{CaCO}}_{3}}\, \xrightarrow{{}} CaO+C{{O}_{2}}\]
done
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B)
\[Na+{{H}_{2}}O\xrightarrow{{}}\,NaOH+\frac{1}{2}{{H}_{2}}\]
done
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C)
\[\operatorname{MnC}{{l}_{3}} \xrightarrow{{}} MnC{{l}_{2}}\,+\,\frac{1}{2}\,C{{l}_{2}}\]
done
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D)
\[{{O}_{2}}+2{{H}_{2}}\xrightarrow{{}}2{{H}_{2}}O\]
done
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View Answer play_arrow
How much time is required to do the electroplating of Ag layer on a coffee tray \[\left( 30\,\,cm \times 15\,cm \right)\] to a thickness of 1 mm using a constant current of 1.0 A. Given that density of Ag is\[10.5 g/c{{m}^{3}}\].
A)
7720 sq
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B)
120 min
done
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C)
772 s
done
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D)
77.2 s
done
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View Answer play_arrow
Which of the following order is correct regarding rate of diffusion of gases?
A)
\[PC{{l}_{3}}>S{{O}_{3}}>S{{O}_{2}}>C{{O}_{2}}\]
done
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B)
\[C{{O}_{2}}>S{{O}_{2}} > PC{{l}_{3}} >S{{O}_{3}}\]
done
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C)
\[S{{O}_{2}}>S{{O}_{3}}>PC{{l}_{3}}>C{{O}_{2}}\]
done
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D)
\[C{{O}_{2}}>S{{O}_{2}}>S{{O}_{3}}>PC{{l}_{3}}\]
done
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View Answer play_arrow
Packing fraction of simple cubic crystal lattice is
A)
\[38\,%\]
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B)
\[74\,%\]
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C)
\[68\,%\]
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D)
\[52.4\,%\]
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For antifluorite structure coordination number of cations and anions are respectively
A)
6 and 6
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B)
4 and 8
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C)
8 and 4
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D)
4 and 4
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In the reaction, \[{{N}_{2}}{{O}_{4}}\rightleftharpoons 2N{{O}_{2}}\], a is that part of \[{{N}_{2}}{{O}_{4}}\] which dissociates, then the number of moles at equilibrium will be
A)
\[{{\left( 1-\alpha \right)}^{2}}\]
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B)
\[3\alpha \]
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C)
\[\alpha \]
done
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D)
\[1+\alpha \]
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\[\Delta E{}^\circ \] of combustion of isobutylene is \[-x\,kJ mol{{\,}^{-}}^{1}\]. The value of \[\Delta H{}^\circ \] is
A)
\[=\Delta \,E{}^\circ \]
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B)
\[>\Delta \,E{}^\circ \]
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C)
\[=zero\]
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D)
\[<\Delta \,E{}^\circ \]
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View Answer play_arrow
A plot of log \[\frac{x}{m}\] versus log p for adsorption of a gas on a solid gives a straight line with slope equal to m
A)
\[\frac{1}{n}\]
done
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B)
log K
done
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C)
- log K
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D)
n
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View Answer play_arrow
The half-life time of a first order reaction is \[1.26 \times 1{{0}^{14}}s\], then rate constant of this reaction will be
A)
\[5.5\times 1{{0}^{-10}}{{s}^{-\,1}}\]
done
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B)
\[5.5\times 1{{0}^{-14}}{{s}^{-\,1}}\]
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C)
\[6.6\times 1{{0}^{-14}}{{s}^{-\,1}}\]
done
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D)
None of these
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View Answer play_arrow
Which of the following forms cationic micelles above certain concentration?
A)
Urea
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B)
Sodium dodecyl sulphate
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C)
Sodium acetate
done
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D)
Cetyltrimethylammonium bromide
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View Answer play_arrow
0.5 g of a metal on oxidation give 0.79 g of its oxide. The equivalent weight of the metal is
A)
10
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B)
14
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C)
20
done
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D)
40
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What will be the value of relative lowering of vapour pressure when 3 g urea is dissolved in 45 g. of water?
A)
0.05
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B)
0.04
done
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C)
0.02
done
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D)
0.01
done
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Which of the following will not show tautomerism?
A)
cyclohexen-1-ol
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B)
pentanone
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C)
acetone
done
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D)
2-methyl pentan-1-ol
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View Answer play_arrow
Rate constant of any reaction with \[20\,%\] complete in 10 min is
A)
0.223
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B)
0.0223
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C)
0.0322
done
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D)
0.322
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Which of the following contain N?N bond? \[{{N}_{2}}{{O}_{4}},\,\,{{N}_{2}}{{O}_{5}},\,\,{{N}_{2}}{{O}_{3}}\]
A)
\[{{N}_{2}}{{O}_{4}}, {{N}_{2}}{{O}_{3}} and {{N}_{2}}{{O}_{5}}\]
done
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B)
\[{{N}_{2}}{{O}_{5}} and {{N}_{2}}{{O}_{4}}\]
done
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C)
\[{{N}_{2}}{{O}_{3}} and {{N}_{2}}{{O}_{5}}\]
done
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D)
\[{{N}_{2}}{{O}_{3}} and {{N}_{2}}{{O}_{4}}\]
done
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View Answer play_arrow
Match the following columns.
Column I Column II A. Viral diseases 1. Taeniasus and ascariasis B. Bacterial diseases 2. Malaria C. Protozoan diseases 3. Rabies and polio D. Helminthic diseases 4. Cholera and TB 5. Syphilis
Codes
A)
A-5, B-1, C-4, D-2
done
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B)
A-3, B-4, C-2, D-1
done
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C)
A-1, B-2, C-5, D-3
done
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D)
A-4, B-3, C-1, D-2
done
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View Answer play_arrow
Match the following columns.
Column I (Stop codon) Column II (Also known as) A. UAG 1. Opal B. UAA 2. Ochre C. AGA 3. Amber 4. Umber
Codes
A)
A-3, B-1, C-2
done
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B)
A-4, B-1, C-3
done
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C)
A-3, B-4, C-2
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D)
A-3, B-2, C-1
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View Answer play_arrow
Which one is obtained by acetylation of morphine?
A)
Charas
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B)
Cocaine
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C)
Smack
done
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D)
Crack
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Accordance to the human genome project, select the incorrect statement.
A)
The goal of HGP was to identity or determine 3 billion chemical base pair
done
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B)
It was launched in 1980 2 completed in 1990
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C)
Two major approaches involved i.e., ESTs (Expressed Sequence Tags) and sequence annotation
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D)
SNPs or single nucleotide polymorphism occur in humans.
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Cambium is the example of which of the following types apical of meristem?
A)
Apical meristem
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B)
Lateral meristem
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C)
Marginal meristem
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D)
Intercalary meristem
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Which of the following are true for serum sickness? I. It is an genetic disorder. II. It is a reaction that is similar to an allergy. III. Corticosteroid is generally first line of management/treatment for serum sickness. IV. Sulfa drugs cannot involve in its etiology.
A)
II and III
done
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B)
I and IV
done
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C)
I and III
done
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D)
II and IV
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Identify the markings of below ecological pyramid from following options, if 1-Herbivores; 2-Secondary predator; 3-Decay derives; 4-Primary predators; 5-Autotrophs
A)
A-2, B-1, C-3, D-4, E-5
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B)
A-4, B-1, C-3, D-5, E-2
done
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C)
A-3, B-5, C-2, D-1, E-4
done
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D)
A-5, B-3, C-2, D-1, E-4
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Which of the following statements is not correct for interferons?
A)
They are mainly glycopretein in nature
done
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B)
They are produced by plasma B-cells only
done
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C)
They form the body's second line of defence
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D)
They provide a temporary protection against microbes
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In reference to the mRNA, select the incorrect option.
A)
mRNA is linear
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B)
It carries coded information
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C)
It does not require any processing
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D)
Nitrogen bases are unmodified
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View Answer play_arrow
Which one of the statements given below is not correct?
A)
Insectivorous plants are autotrophic and heterotrophic as they capture insects to overcome their \[{{N}_{3}}\] deficiency
done
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B)
Sulphur is main constituent of chlorophyll
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C)
The most important diseases due to copper deficiency are exanthema and reclamation
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D)
Nif gene is present in Rhizobium
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Which of the following are the causes of insulin resistance? I. Polycystic ovary disease II. Hemochromatosis III. Lipodystrophy IV. Mutations of melanocortin receptors
A)
I and IV
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B)
I, II, III and IV
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C)
II and III
done
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D)
II and IV
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Which part of male reproductive system is the site of sperm maturation and storage?
A)
Vas deferens
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B)
Testes
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C)
Epididymis
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D)
Seminal vesicle
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Which of the followings is not correctly matched?
A)
Cancer of muscle tissue - Myoma
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B)
Cancer of adipose tissue - Lipomas
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C)
Blood cancer - Leukaemia
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D)
Cancer of glial cells of CNS - Melanomas
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Which of the following statement(s) is/are correct for RAPD? I. It stands of for Random Altered Polygenic DNA. II. It stands for Random Amplified Polymorphic DNA. III. It is used to study phylogeny of diverse plant and animal species. IV. It is very easy to distinguish whether a DNA segment is amplified from heterozygous or homozygous.
A)
I and IV
done
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B)
II and III
done
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C)
II and IV
done
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D)
I, II, III and IV
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Which one of the following is not correct?
A)
The minerals, particularly \[C{{a}^{2+}},\,\,{{K}^{+}}\,and\,\,N{{a}^{+}}\] maintain the permeability of cytomembranes
done
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B)
Minerals like Cu, As, impart toxic effect on the proplasm under specific condition
done
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C)
Several elements particularly Fe, Ca, Mg, Zn, Cu, Cl act as metallic catalyst in biochemical reactions
done
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D)
Mg, K and Ca are essential microelements
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View Answer play_arrow
Identify the marking in below graphs.
A)
A- Allopatric, B- Sympatric, C- Parapatric
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B)
A- Sympatric, B- Parapatric, C- Allopatric
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C)
A- Parapatric, B- Allopatric, C- Sympatric
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D)
A- Allopatric, B- Parapatric, C- Sympatric
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Which of the following is/are true for Leber's hereditary Optic Neuropathy (LHON)
I. It is mitochondrial myopathy
II. It is characterised by short stature
III. It is characterised by acromegaly
IV. It is characterised by visual lose
A)
All are false
done
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B)
II and III
done
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C)
I and IV
done
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D)
II and IV
done
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View Answer play_arrow
\[{{C}_{4}}-plants\] differ from \[{{C}_{3}}-plants\] in respect to
A)
Number of \[C{{O}_{2}}\] molecules used
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B)
Substrate, which accept the \[C{{O}_{2}}\] molecules
done
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C)
Number of ATP formed
done
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D)
Number of \[{{O}_{2}}\] formed
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View Answer play_arrow
In the process of ATP synthesis, oligomycin and DCCD act at which place in figure
A)
A
done
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B)
B
done
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C)
C
done
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D)
D
done
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View Answer play_arrow
Match the following columns.
Column I Column II A. Macrophytes 1. Rooted plants in shallow water B. Phagotrophe 2. Animals ingest food C. Abiotic components 3. Temperature D. Hydrophytes 4. Plants of dry areas 5. Plants of aquatic nasitants
Codes
A)
A-5, B-4, C-3, D-2
done
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B)
A-1, B-2, C-3, D-4
done
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C)
A-1, B-2, C-3, D-5
done
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D)
A-4, B-3, C-2, D-1
done
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View Answer play_arrow
In the modern era, due to excess stress and faulty life styles, mental problems are on increasing trend. Arrange the given component in correct sequence of cycle. Components are 1. Avoid treatment 2. Silence and hiding 3. Stigma 4. Symptoms of mental illness 5. Discrimination
A)
A-3, B-1, C-2, D-4, E-5
done
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B)
A-5, B-4, C-3, D-1, E-2
done
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C)
A-4, B-3, C-5, D-2, E-1
done
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D)
A-1, B-4, C-5, D-2, E-3
done
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View Answer play_arrow
Assertion [A] The leaves of cauliflower become flaccid and gray in molybdenum deficiency. Reason [R] Cauliflower plant is affected by whiptail disease in molybdenum deficiency.
A)
Both A and R are true and R is correct explanation of A
done
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B)
Both A and R are true, but R is not the correct explanation of A
done
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C)
A is true but R is false
done
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D)
A is false but R is true
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View Answer play_arrow
Identify the incorrect combination from given options.
A)
Periyar - Elephant
done
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B)
Sunderban - Tiger
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C)
Dachigam National Park - Snow leopard,
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D)
Rann of Kutch - Wild ass
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View Answer play_arrow
Match the following columns
Column I (Mode of preservation of fossils) Column II (Comment) A. Adpression 1. Chdcalcified remains of plant tissue B. Fusain 2. Most commonly found plant fossils C. Petrifactions 3. Provide fine details D. Moulds and costs 4. Pith casts is it subset
Codes
A)
A-2, B-3, C-1, D-4
done
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B)
A-1, B-4, C-3, D-2
done
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C)
A-4, B-2, C-1, D-3
done
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D)
A-2, B-1, C-3, D-4
done
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View Answer play_arrow
Preparation of Fallopian tube for conveying developing embryo to uterus is aided by which of the following homona
A)
human placental lacto gen
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B)
oxytocin
done
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C)
progesterone
done
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D)
prolactin
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View Answer play_arrow
Which of the following are desirable properties for an ideal DNA markers? I. Highly polymorphic nature II. Codominant inheritance III. Frequent occurrence in genome IV. High reproducibility
A)
I and IV
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B)
II and III
done
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C)
I, II, III and IV
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D)
I and III
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View Answer play_arrow
Crown gall disease is caused which of the following pathogen.
A)
virus
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B)
bacteria
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C)
fungi
done
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D)
protozoans
done
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View Answer play_arrow
Which of the following is not an autotrophic microbe that fix atmospheric nitrogen?
A)
Anabaena
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B)
Rhizobium
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C)
Nostoc
done
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D)
Oscillatoria
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Which of the following is/are the first most common sign of pregnancy? I. Amenorrhea II. Quickening III. Ballottement of foetus IV. Foetal movement perceived by examiner
A)
I, II, III and IV
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B)
I and IV
done
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C)
Only I
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D)
II and III
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View Answer play_arrow
Choose the incorrect statement.
A)
Sieve tube elements resemble RBCs in being without nucleus in the mature state
done
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B)
Root hairs are found in zone of maturation
done
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C)
The common bottle cork is a product of xylem
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D)
Water containing cavities in vascular bundles are found in maize
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View Answer play_arrow
If your Renal Plasma Flow is 650 mL/min and Glomerular Filtration Rate is 125 mL/min. Calculate your Filtration Fraction.
A)
Given inform at ions are not complete
done
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B)
0.19
done
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C)
0.5
done
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D)
5.5
done
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View Answer play_arrow
In summer vacation you have visited to your friend's residence. He informed you that recently he has donated his kidney to his father. When you enquired further, you have been told that your friend had opted for laproscopic way of kidney donation, instead of open way of kidney donation. What might be the correct reason for it?
I. Your friend's age is below is 18 year.
II. It is less painful method
III. When laproscopic method is followed, other kidney does a quick hypertrophy.
IV. Incision is not visible (cosmetic reason).
A)
II and IV
done
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B)
All are true
done
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C)
All are false
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D)
I and II
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View Answer play_arrow
Below pie diagram shows the global biodiversity and proportionate numbers of vertebrates. Identify the markings if I. Fishes II. Amphibians III. Mammals IV. Birds V. Reptiles
A)
A-II, B-I, C-IV, D-V, E-III
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B)
A-V, B-III, C-I, D-IV, E-II
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C)
A-III, B-IV, C-V, D-II, E-I
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D)
A-I, B-IV, C-III, D-II, E-V
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View Answer play_arrow
A man has six daughters, what is the probability of next child being a son?
A)
\[10\,%\]
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B)
\[50\,%\]
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C)
\[100\,%\]
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D)
\[75\,%\]
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View Answer play_arrow
Which of the following gland do not secrete proteinaceous hormones?
A)
Pancreas
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B)
Thyroid gland
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C)
Parathyroid gland
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D)
Gonads
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In the given below fluid mosaic model of cell membrane, identify the markings If I. Hydrophobic tails II. Cholesterol III. Integral protein IV. Hydrophilic heads
A)
A-IV, B-I, C-III, D-II
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B)
A-I, B-III, C-II, D-IV
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C)
A-III, B-II, C-IV, D-I
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D)
A-IV, B-I, C-III, D-II
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View Answer play_arrow
The aleurone layer in maize grain is specially rich in which of the following molecules
A)
starch
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B)
proteins
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C)
lipids
done
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D)
cellulose
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View Answer play_arrow
Study the following chain Sun \[\Downarrow \] Given 1000 units energy to phytoplanktons \[\Downarrow \] Phytoplanktons are consumed by hebivorous zooplankton, and in turn received A unit of energy, \[\Downarrow \] Carnivorous zooplanktons eat the herbivorous zooplankton and get B unit of energy. \[\Downarrow \] Carnivorous fish takes carnivorous zooplanktons and received C unit of energy. \[\Downarrow \] In last, Tunas find their turn and engulf carnivore fishes to get D unit of energy. Sun \[\Downarrow \] Given 1000 units energy to phytoplanktons \[\Downarrow \] Phytoplanktons are consumed by hebivorous zooplankton, and in turn received A unit of energy, \[\Downarrow \] Carnivorous zooplanktons eat the herbivorous zooplankton and get B unit of energy. \[\Downarrow \] Carnivorous fish takes carnivorous zooplanktons and received C unit of energy. \[\Downarrow \] In last, Tunas find their turn and engulf carnivore fishes to get D unit of energy. Identify A, B, C and D If I. 0.1 unit II. 10 unit III. 100 unit IV. 1 unit
A)
A-II, B-III, C-IV, D-I
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B)
A-IV, B-I, C-III, D-II
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C)
A-III, B-II, C-IV, D-I
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D)
Given information is not sufficient to answer
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View Answer play_arrow
Intertribal hybrids were first obtained by which of the following scientist
A)
Gibbs and Hofmann (1966)
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B)
Gibbs and Hofmann (1982)
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C)
Gibbs and Hofmann (1976)
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D)
Gibbs and Hofmann (1953)
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View Answer play_arrow
Label the given graph.
A)
(i)-Log phase (ii)-Exponential phase (iii)-Stationary phase
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B)
(i)-Exponential phase (ii)-Log phase (iii)-Stationary phase
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C)
(i)-Stationary phase (ii)-Log phase (iii)-Exponential phase
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D)
(i)-Log phase (ii)-Stationary phase (iii)-Exponential phase
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View Answer play_arrow
Identify the incorrect statement(s) from following options I. Glycolate is formed, in illuminated chloroplast of \[{{C}_{3}}\] plants. II. For every 2 glycolate molecules that leaves the chloroplast, one glycerate, derived from glycolate III. One of the 4 carbons from the two glycolates is lost as\[C{{O}_{2}}\]. IV. As 3-phosphoglycerate, the 3 remaining carbons can reenter the Calvin cycle.
A)
II and IV
done
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B)
I and III
done
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C)
None of these statement is false
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D)
I and II
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View Answer play_arrow
Choose the incorrect pair from the following options.
A)
Ethylene - Gas hormone
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B)
Abscisic acid - Flowering hormone
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C)
Auxin - To grow
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D)
Gibberellins - Gibbered fujikuroi
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Which of the following option is true regarding Flavr Savr?
A)
It is toxic insecticidal protein
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B)
It is slow ripening tomato
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C)
It is transgenic tomato
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D)
Its a pesticide variety
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The formation of acetyl coenzyme from pyruvic acid is the result of its
A)
reduction
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B)
dehydration
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C)
dephosphorylation
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D)
oxidative decarboxylation
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Assertion [A] Linnaeus system of animal classification is essentially an artificial system, yet it has become a natural system. Reason [R] Similarities forming the basis in Linnaeus systems are indicative of genetic relationship.
A)
Both A and R are true and R is the correct explanation of A
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B)
Both A and R are true, but R can?t explain A
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C)
Only A is the true and R is false
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D)
A is false and R is true
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Your one of the relatives has just married. She called you and requested to suggest the most appropriate method of contraception. Which of the following contraception would be your first suggested choice?
A)
Oral contraceptive pills
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B)
IUDS (Intrauterine devices)
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C)
Tubectomy
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D)
I-pill
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Taxonomic hierarchy refers to one of the following statement.
A)
nomenclature of plants and animal species by highly qualified group of individual
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B)
classification of all the species based on the phylogenetic analysis
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C)
classification of species on the basis of level in which they are present in food chain
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D)
stepwise arrangement of all categories for classification of plants and animals
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Spironolactone acts at which part of the nephron.
A)
Its site of action depends upon it concentration
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B)
It is still the matter of research
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C)
It acts on collecting tubules
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D)
It acts on PCT
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In a given case if \[C{{O}_{2}}\] liberated during respiration is more than the volume of \[{{O}_{2}}\] used, the substance will be
A)
fats
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B)
organic acid
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C)
protein
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D)
carbohydrate
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In the following processes of synthesis of norepinephrine identify the markings correctly. 1. \[A\xrightarrow{D}Dopa\] 2. \[\operatorname{Dopa} \xrightarrow{B} Dopamine\] 3. Transport of dopamine into the vesicles 4. \[Dopamine\text{ }\xrightarrow{C}\text{ }Norepinephrine\] If I. Tyrosine II. Hydroxylation III. Decarboxylation IV. Phenylacanin
A)
A-IV, B-II, C-III, D-III
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B)
A-I, B-II, C-III, D-III
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C)
A-I, B-III, C-II, D-II
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D)
A-IV, B-III, C-II, D-II
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Choose the correct statement in reference to primary myofilament.
A)
They are more than secondary myofilament
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B)
Primary myofilament have smooth surface
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C)
Primary my filament consists of two proteins
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D)
They slide during muscle contraction
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In a type of apomixis known as adventive embryony, embryos develop directly from the
A)
endosperm
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B)
nucellus or integuments
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C)
synergids
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D)
anti podals
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Which of the following is true for the arrangement of the nuclei in a Polygonum type of embryo sac in the angiospermic plants?
A)
\[2+4+2\]
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B)
\[2+3+3\]
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C)
\[3+2+3\]
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D)
\[3+3+2\]
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Which of the following is agranulocytic type of white blood cells?
A)
Lymphocyte
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B)
Neutrophil
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C)
Basophil
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D)
Eosinophil
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Which of the following option is correct for the life span of WBC?
A)
10 months
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B)
10 weeks
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C)
Less than 10 days
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D)
Less than 10 hours
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Consider the following statements. I. \[{{C}_{4}}\] species have greater rate of \[C{{O}_{2}}\] assimilation than \[{{C}_{3}}\] species. II. \[C{{O}_{2}}\] compensation point is very high in \[{{C}_{4}}\] plants. III. The process of photorespiration involves the chloroplasts, peroxysomes and mitochondria. Which of the statements given above are correct?
A)
I and II
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B)
I and III
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C)
II and III
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D)
I, II and III
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Which of the following EEG waves of Brain occur mainly in children and in adults during stress?
A)
Alpha waves
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B)
Beta waves
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C)
Delta waves
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D)
Theta waves
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Gossamer silk is produced by which of the following organism?
A)
Silk moth
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B)
Scorpion
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C)
Tusser moth
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D)
Spider
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Which of the following theories explains the structure of protoplasm?
A)
Surface-tension theory
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B)
Colloidal theory
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C)
Sol-gel theory
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D)
Viscosity theory
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Which of the following is a connecting link as well as a living fossil?
A)
Latimeria
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B)
Neopilina
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C)
Euglena
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D)
Archaeopteryx
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What is true about the first living organisms?
A)
They originated in an oxidising atmosphere.
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B)
They were aerobic
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C)
Made their own food
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D)
Obtained energy by fermentation of organic molecules
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Correct sequence of stage in evolution of Modern man. I. Australopithecus II. Homoerectus III. Neanderthal man IV. Cro-magnon man V. Modern man
A)
V, III, I, IV, II
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B)
I, II, III, IV, V
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C)
III, II, I, V, IV
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D)
II, IV, V, I, III
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Vermis is found in which of the following brain structure.
A)
cerebrum
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B)
medulla oblongata
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C)
cerebellum
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D)
brain stem
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Mental retardation is commonly associated with genetic diseas as, but it is not related with one of the genetic defect.
A)
trisomy 21
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B)
phenylalanine hydroxylase
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C)
myelinisation of neuron
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D)
Y-chromosome
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Which of the following is principal cation of blood plasma?
A)
\[M{{g}^{+\,2}}\]
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B)
\[{{K}^{+\,}}\]
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C)
\[N{{a}^{+\,2}}\]
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D)
\[C{{a}^{+\,2}}\]
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The genes, which remain confined to differential region of Y-chromosome are
A)
holandric genes
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B)
autosomal genes
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C)
completely sex-linked genes
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D)
mutant genes
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Which of the following statement is not correct?
A)
Pineal gland secretes serotonin and melatonin
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B)
Adrenaline is an amine
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C)
Kidney do not secrete steroid hormones
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D)
Oxytocin is secreted by posterior lobe of pituitary
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Which among the following is a function of restriction enzyme in nature?
A)
Plasmids
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B)
Destroy foreign DNA
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C)
Destroy phage DNA
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D)
Splice up DNA of the cells
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Choose the incorrect statement.
A)
RNA is a genetic material
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B)
DNA replication is semiconservative
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C)
Ribonucleoside \[\to \] Nitrogenous base \[\to \] Ribonucleotide
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D)
Adenine and guanine are purines.
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Which transgenic food crop helps in solving the problem of night blindness?
A)
Transgenic maize
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B)
Golden rice
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C)
Bt soyabean
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D)
Bt brinjal
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Down's syndrome is due to
A)
non-disjunction of chromosome
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B)
duplication
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C)
crossing over
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D)
linkage
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Which of the following is incorrect? I. Stabilising selection - Favours average size individuals. II. Disruptive selection - Favours exotic species III. Directional selection - Favours both small and large sized individuals IV. Industrial melanism - Supports evolution by use and disuse
A)
All except II
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B)
All except I
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C)
All of these
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D)
None of these
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Why the tropical deciduous trees shed their leaves?
A)
To protect itself from heat and water
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B)
To enhance rate of respiration and rate of absorption
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C)
To reduce the rate of transpiration
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D)
To save energy
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GMFs have proven their importance as
A)
they cause less damage to environment
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B)
they allow the increase of crop quantity
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C)
they improve profitability
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D)
they improve convince for customers.
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Which is not X-linked?
A)
Duchenne muscular dystrophy
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B)
Protanopia
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C)
GbPD deficiency
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D)
Congenital adrenal hyperplasia
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The cell is fully turgid when one of the following condition fulfilled.
A)
Diffusion pressure deficit = Turgor pressure
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B)
Diffusion pressure deficit = Suction pressure
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C)
Osmotic pressure = Diffusion pressure deficit
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D)
Diffusion pressure deficit = Zero
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Which of the following statement(s) is/are true for vccine?
A)
collection of attenuated disease causing bacteria and virus
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B)
collection of microorganism
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C)
collection of killed a disease causing bacteria and virus
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D)
Both [a] and [c]
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Which of the following is the golden age of reptiles?
A)
Mesozoic era
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B)
Archaeozoic era
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C)
Coenozoic era
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D)
Paraepzpicera
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In our nature, cleistogamous type of flowers are
A)
animal pollinated
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B)
insect-pollinated
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C)
bird pollinated
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D)
self-pollinated
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Which of the following is not an autosomal recessive trait?
A)
Phenylketonuria
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B)
Cystic fibrosis
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C)
Albinism
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D)
Polydactyl
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Blunt ends are produced by which of the following restriction enzyme?
A)
Alu I
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B)
Pst I
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C)
Sma I
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D)
Hind III
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Bolistic technique is characterisation of
A)
germplasm conservation
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B)
conjugation
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C)
tissue culture
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D)
gene transfer process
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Auxin (IAA) was isolated by Thiamann in 1935 from
A)
bryophytes
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B)
algae
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C)
fungi
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D)
pteridophytes
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Under given suitable conditions, the diffusion pressure deficit will be more than osmotic pressure.
A)
When osmotic pressure is equal to turgor pressure
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B)
When osmotic pressure is less than turgor pressure
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C)
When osmotic pressure is greater than turgor pressure
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D)
When turgor pressure is negative
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Viriods differ from viruses in having
A)
naked DNA molecule only
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B)
naked DNA packed with viral genome
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C)
satellite RNA packed with viral genome only
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D)
naked RNA molecule only
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The joint between atlas and axis is called
A)
angular joint
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B)
pivot joint
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C)
saddle joint
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D)
hinge joint
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Which one of the following is Permanent cure of Adenosine Deaminase (ADA) deficiency is
A)
enzyme replacement therapy
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B)
introducing isolated gene from marrow cells producing ADA into the cells at early embryonic stages
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C)
injecting the functional ADA, CDNA into the patient
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D)
administering adenosine deaminase through injections
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Which of the following is correct pairing of site of action and substrate of rennin?
A)
Mouth-starch
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B)
Stomach-fat
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C)
Stomach-caseinogen
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D)
Small intestine-fat
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Which of the following stabilises microtubules and interferes with mitosis?
A)
Colchicine
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B)
Tubulin
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C)
Taxol
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D)
Vincristine
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Which of the following is an example of gene silencing?
A)
Bt brinjal
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B)
Bt cotton
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C)
Golden rice
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D)
Flavr savr tomato
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