Official NEET UG 2009 (C1)
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Question 1 of 200
1. Question
If the dimensions of a physical quantity are given by \(M^a L^b T^c\), then the physical quantity will be :
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Question 2 of 200
2. Question
A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 seconds is S\(_1\) and that covered in the first 20 seconds is S\(_2\) then :
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Question 3 of 200
3. Question
A bus is moving with a speed of 10ms\(^{–1}\) on a straight road. A scooterist wishes to overtake the bus in 100s. If the bus is at a distance of 1 km from the scooterist, with what speed should the scooterist chase the bus ?
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Question 4 of 200
4. Question
The mass of lift is 2000 kg. When the tension in the supporting cable is 28000 N, then its acceleration is :
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Question 5 of 200
5. Question
An explosion blows a rock into three parts Two parts go off at right angles to each other. These two are, 1 kg first part moving with a velocity of 12 ms\(^{–1}\) and 2 kg second part moving with a velocity of 8 ms\(^{–1}\) . If the thirds part files off with a velocity of 4 ms\(^{–1}\) , its mass would be :
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Question 6 of 200
6. Question
A block of mass M is attached to the lower end of a vertical spring. The spring is hung from a ceiling and has force constant value k. The mass is released from rest with the spring initially unstretched. The maximum extension produced in the length of the spring will be :
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Question 7 of 200
7. Question
Two bodies of mass 1 kg and 3 kg have position vectors \(\hat{i}+ 2\hat{j}+\hat{k}\) and \(-3\hat{i} -2\hat{j}+\hat{k}\), respectively. The centre of mass of this system has a position vector :
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Question 8 of 200
8. Question
Four identical thin rods each of mass M and length \(l\), from a square frame. Moment of inertia of this frame about an axis through the centre of the square and perpendicular to its plane is :
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Question 9 of 200
9. Question
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 \(\omega \), If two objects each mass m be attached gently to the opposite ends of a diameter of the ring, the ring, will then rotate with an angular velocity :
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Question 10 of 200
10. Question
A body, under the action of a force \(\vec{F} = 6 \hat{i}-8\hat{j}+10\hat{k}\) acquires an acceleration of 1 m/s\(^2\) . The mass of this body must be :
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Question 11 of 200
11. Question
If \(\vec{F}\) is the force acting on a particle having position vector \(\vec{r}\) and \(\vec{\tau}\) be the torque of this force about the origin, then :
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Question 12 of 200
12. Question
The figure shows elliptical orbit of a planet m about the sun S. The shaded area SCD is twice the shaded are SAB. It t\(_1\) is the time for the planet to move from C to D and t\(_2\) is the time to move from A to B then
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Question 13 of 200
13. Question
An engine pumps water continuously through a hose. Water leaves the hose with a velocity v and m is the mass per unit length of the water jet. What is the rate which kinetic energy is imparted to water ?
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Question 14 of 200
14. Question
A body of mass 1 kg of thrown upwards with a velocity 20 m/s. It momenetarily comes to rest after attaining a height of 18m. How much energy is lost due to air friction ?
(g = 10 m/s\(^2\))CorrectIncorrect -
Question 15 of 200
15. Question
The two ends of a rod of length L and a uniform cross-sectional area A are kept at two temperatures T\(_1\) and T\(_2\) (T\(_1\) > T\(_2\) ). The rate of heat transfer, \(\frac{dQ}{dt}\) through the rod in a steady state is given by :
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Question 16 of 200
16. Question
In thermodynamic processes which of the following statements is not true ?
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Question 17 of 200
17. Question
A black body at 227\(^{o}\)C radiates heat at the rate of 7 cals/cm\(^2\)s. At a temperature of 727\(^o\)C, the rate of heat radiated in the same units will be :
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Question 18 of 200
18. Question
The internal energy change in a system that has absorbed 2 k cal of heat and done 500 J of work is :
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Question 19 of 200
19. Question
The driver of a car traveling with speed 30 m/sec towards a hill sounds a horn of frequency 600 Hz. If the velocity of sound in air is 330 m/s, the frequency of reflected sound as heard by driver is :
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Question 20 of 200
20. Question
A simple pendulum performs simple harmonic motion about x = 0 with an amplitude a and time period T. The speed of the pendulum at x = a/2 will be :
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Question 21 of 200
21. Question
Which one of the following equations of motion represents simple harmonic motion ?
Where k, k\(_0\), k\(_1\) and a are all positive
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Question 22 of 200
22. Question
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Question 23 of 200
23. Question
A wave in a string has an amplitude of 2 cm. The wave travels in the +ve direction of x-axis with a speed of 128 m/s and it is noted that 5 complete waves fit in 4 m length of the string. The equation describing the wave is
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Question 24 of 200
24. Question
Each of the two strings of length 51.6 cm and 49.1 cm are tensioned separately by 20 N force. Mass per unit length of both the strings is same and equal to 1 g/m. When both the strings vibrate simultaneously the number of beats is :
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Question 25 of 200
25. Question
Three capacitors each of capacitance C and of breakdown voltage V are joined in series. The capacitance and breakdown voltage of the combination will be :
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Question 26 of 200
26. Question
Which one of the following has haplontic life cycle ?
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Question 27 of 200
27. Question
T.O.Diener discovered a :
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Question 28 of 200
28. Question
Mannitol is the stored food in –
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Question 29 of 200
29. Question
Which one of the following is a vascular cryptogram ?
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Question 30 of 200
30. Question
Phylogenetic system of classification is based on:
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Question 31 of 200
31. Question
Which one of the following groups of animals is bilaterally symmetrical and triploblastic ?
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Question 32 of 200
32. Question
Peripatus is a connecting link between :
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Question 33 of 200
33. Question
Which one of the following pairs of animals comprises ‘Jawless fishes’ ?
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Question 34 of 200
34. Question
If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is :
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Question 35 of 200
35. Question
Plasmodesmata are :
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Question 36 of 200
36. Question
Stroma in the chloroplast of higher plant contains :
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Question 37 of 200
37. Question
Synapsis occurs between :
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Question 38 of 200
38. Question
Middle lamella is composed mainly of :
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Question 39 of 200
39. Question
Cytoskeleton is made up of :
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Question 40 of 200
40. Question
The cell junctions called tight, adhering and gap junctions are found in :
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Question 41 of 200
41. Question
The kind of tissue that forms the supportive structure in our pinna (external ears) is also found in –
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Question 42 of 200
42. Question
The epithelial tissue present on the inner surface of bronchioles and fallopian tubes is :
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Question 43 of 200
43. Question
Given below is a schematic break-up of the phases / stages of cell cycle:
Which one of the following is the correct indication of the stage / phase in the cell cycle ?
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Question 44 of 200
44. Question
What is not true for genetic code?
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Question 45 of 200
45. Question
Removal of introns and joining the exons in a defined order in a transcription unit is called :
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Question 46 of 200
46. Question
Semiconservative replication of DNA was first demonstrated in :
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Question 47 of 200
47. Question
A wire of resistance 12 ohms per metre is bent to form a complete circle of radius 10 cm. The resistance between its two diametrically opposite points, A and B as shown in the figure, is :
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Question 48 of 200
48. Question
A bar magnet having a magnetic movement of 2 × 10\(^4\) JT\(^{–1}\) is free to rotate in a horizontal plane. A horizontal magnetic field B = 6 × 10–4 T exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction 60\(^o\) from the field is :
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Question 49 of 200
49. Question
The magnetic force acting on a charged particle of charge – 2\(\mu \)c in a magnetic field of 2T acting in y direction, when the particle velocity is \( (2\hat{i} + 3\hat{j}) \times 10^6 \) ms\(^{-1}\), is :
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Question 50 of 200
50. Question
A conducting circular loop is placed in a uniform magnetic field 0.04T with its plane perpendicular to the magnetic field. The radius of the loop starts shrinking at 2 mm/s. The induced emf in the loop when the redius is 2 cm is :
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Question 51 of 200
51. Question
The electric potential at a point (x, y, z) is given by V = -x\(^2\)y – xz\(^3\) + 4 The electric field \(\vec{E}\) at that point is :
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Question 52 of 200
52. Question
See the electrical circuit shown in this figure. Which of the following equations is a correct equation for it ?
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Question 53 of 200
53. Question
A galvanometer having a coil resistance of 60 \(\Omega \) shows full scale deflection when a current of 1.0 amp passes through it. It can be converted into an ammeter to read currents upto 5.0 amp by :
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Question 54 of 200
54. Question
Under the influence of a uniform magnetic field, a charged particle moves with constant speed V in a circle of radius R. The time period of rotation of the particle :
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Question 55 of 200
55. Question
Power dissipated in an LCR series circuit connected to an a.c. source of emf \(ε\) is :
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Question 56 of 200
56. Question
Three concentric spherical shells have radii a, b, and c(a < b < c) and have surface charge densities \(\sigma \), –\(\sigma \) and \(\sigma \) respectively. If V\(_A\), V\(_B\) and V\(_C\) denote the potentials of the three shells, then, for c = a + b, we have :
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Question 57 of 200
57. Question
A student measures the terminal potential difference (V) of a cell (of emf ε and internal) resistance r) as a function of the current (I) flowing through it. The slope and intercept of the graph between V and I, then respectively equal to :
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Question 58 of 200
58. Question
A rectangular, a square, a circular and an elliptical loop, all in the (x – y) plane, are moving out of a uniform magnetic field with a constant velocity,\(\vec{V}=v.\hat{i}\) . The magnetic field is directed along the negative z-axis direction. The induced emf, during the passage of these loops, come out of the field region, will not remain constant for :
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Question 59 of 200
59. Question
If a diamagnetic substance is brought near the north or the south pole of a bar magnet, it is :
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Question 60 of 200
60. Question
The number of photoelectrons emitted for light of a frequency v (higher than the threshold frequency v\(_0\)) is proportional to :
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Question 61 of 200
61. Question
Monochromatic light of wavelength 667 nm is produced by a helium neon laser. The power emitted is 9 mW. The number of photons arriving per second on the average at a target irradiated by this beam is :
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Question 62 of 200
62. Question
The figure shows a plot of photo current versus anode potential for a photo sensitive surface for three different radiations. Which one of the following is a correct statement ?
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Question 63 of 200
63. Question
The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter is an :
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Question 64 of 200
64. Question
The ionization energy of the electron in the hydrogen atom in its grounds state is 13.6 eV. The atoms are excited to higher energy levels to emit radiations of 6 wavelengths. Maximum wavelength of emitted radiation corresponds to the transition between :
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Question 65 of 200
65. Question
In a Rutherford scattering experiment when a projectile of charge Z\(_1\) and mass M\(_1\) approaches a target nucleus of charge Z\(_2\) and mass M\(_2\), the distance of closest approach is r\(_0\). The energy of the projectile is :
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Question 66 of 200
66. Question
In the nuclear decay given below :
The particles emitted in the sequence are :
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Question 67 of 200
67. Question
The mean free path of electrons in a metal is 4 × 10\(^{–8}\) m. The electric field which can give on an average 2 eV energy to an electron in the metal will be in units of V/m :
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Question 68 of 200
68. Question
Sodium has body centred packing. Distance between two nearest atoms is 3.7\(Å\). The lattice parameter is :
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Question 69 of 200
69. Question
A p–n photodiode is fabricated from a semiconductor with a band gap of 2.5 eV. It can detect a signal of wavelength :
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Question 70 of 200
70. Question
The symbolic representation of four logic gates are given below
The logic symbols for OR, NOT and NAND gates are respectively :
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Question 71 of 200
71. Question
A transistor is operated in common-emitter configuration at V\(_C\) = 2V such that a change in the base current from 100 \(\mu \)A to 200 \(\mu \)A produces a change in the collector current from 5 mA to 10 mA. The current gain is :
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Question 72 of 200
72. Question
10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be –
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Question 73 of 200
73. Question
Oxidation number of P in PO\(^{3-}_{4}\) , of S in SO\(^{2-}_{4} and that of Cr in Cr[latex]_2\)O\(^{2-}{7}\) are respectively :
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Question 74 of 200
74. Question
Maximum number of electrons in a subshell or an atom is determined by the following :
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Question 75 of 200
75. Question
Which of the following is not permissible arrangement of electrons in an atom ?
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Question 76 of 200
76. Question
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Question 77 of 200
77. Question
The ionization constant of ammonium hydroxide is 1.77×10\(^{–5}\) at 298 K. Hydrolysis constant of ammonium chloride
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Question 78 of 200
78. Question
Given :
(i) Cu\(^{2+} + 2{e–}\) \(\to \) Cu, E\(^o\) = 0.337 V
(i) Cu\(^{2+} + {e–}\) \(\to \) Cu\(^+ \) E\(^o\) = 0.153 V
Electrode potential E\(^o\) for the reaction,Cu\(^{+}\)+ e\(^–\) \(\to \) Cu, will be
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Question 79 of 200
79. Question
What is the [OH\(^–\)] in the final solution prepared by mixing 20.0 mL of 0.050 M HCl with 30.0 mL of 0.10 M Ba(OH)\(_2\) ? –
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Question 80 of 200
80. Question
The energy absorbed by each molecule (A\(_2\)) of a substance is 4.4 × 10\(^{–19}\) J and bond energy per molecule is 4.0 × 10\(^{–19}\) J. The kinetic energy of the molecule per atom will be :
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Question 81 of 200
81. Question
For the reaction, N\(_2\) + 3H\(_2\) \(\to \) 2NH\(_3\),
If \(\frac{d[NH_3]}{dt}\) = 2 × 10\(^{–4}\) mol L\(^{–1}\)s \(^{–1}\), [] The value of \(\frac{-d[H_2]}{dt}\) would be –
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Question 82 of 200
82. Question
For the reaction A + B \(\to \) products, it is observed that :
(1) On doubling the initial concentration of A only, the rate of reaction is also doubled and
(2) On doubling the initial concentration of both A and B, there is a change by a factor of 8 in the rate of the reaction.
The rate of this reaction is given by :CorrectIncorrect -
Question 83 of 200
83. Question
The equivalent conductance of \(\frac{M}{32}\) solution of a weak monobasic acid is 8.0 mho cm\(^2\) and at infinite dilution is 400 mho cm\(^2\) , The dissociation constant of this acid is –
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Question 84 of 200
84. Question
A 0.0020 M aqueous solution of an ionic compound Co(NH\(_3\))\(_5[/latex (NO[latex]_2\))Cl freezes at – 0.00732\(^o\)C. Number of moles of ions which 1 mole of ionic compound produces on being dissolved in water will be : (k\(_f\) = 1.86oC/m) –
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Question 85 of 200
85. Question
In the reation
BrO\(^-_3\) (aq) + 5Br\(^–\)(aq) + 6H\(^+\) \(\to \) 3Br\(_2\)(l) + 3H\(_2\)O(l) The rate of appearance of bromine (Br\(_2\)) is related to rate of disappearance of bromide ions as following
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Question 86 of 200
86. Question
Lithium metal crystallizes in a body centred cubic crystal. If the length of the side of the unit cell of lithium is 351 pm, the atomic radius of lithium will be :
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Question 87 of 200
87. Question
The dissociation constants for acetic acid and HCN at 25\(^o\)C are 1.5 × 10\(^{-5}\) and 4.5 × 10\(^{-10}\), respectively. The equilibrium constant for the equilibrium –
would be:
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Question 88 of 200
88. Question
The values of \(\triangle \)H and \(\triangle \)S for the reaction, C(graphite) + CO\(_2\)(g) → 2CO(g) are 170 kJ and 170 JK\(^{–1}\) respectively. This reaction will be spontaneous at –
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Question 89 of 200
89. Question
Half-life period of a first-order reaction is 1386 seconds. The specific rate constant of the reaction is :
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Question 90 of 200
90. Question
In which of the following molecules / ions BF\(_3\), NO\(^-_2\) , NH\(^-_2\) and H\(_2\)O, the central atom is sp2 hybridized ?
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Question 91 of 200
91. Question
Among the following which is the strongest oxidizing agent ? –
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Question 92 of 200
92. Question
Whose experiments cracked the DNA and discovered unequivocally that a genetic code is a “triplet” ?
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Question 93 of 200
93. Question
Point mutation involves :
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Question 94 of 200
94. Question
In the case of peppered moth (Biston betularia) the black-coloured from became dominant over the light-coloured form in England during industrial revolution. This is an example of –
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Question 95 of 200
95. Question
Sickel cell anemia is :
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Question 96 of 200
96. Question
Study the pedigree chart given below :
What does it show ?
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Question 97 of 200
97. Question
The most popularly known blood grouping is the ABO grouping. It is named ABO and not ABC, because “O” in it refers to having :
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Question 98 of 200
98. Question
Select the incorrect statement from the following :
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Question 99 of 200
99. Question
Cotyledons and testa respectively are edible parts in –
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Question 100 of 200
100. Question
An example of a seed with endosperm, perisperm and caruncle is –
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Question 101 of 200
101. Question
Guard cells help in :
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Question 102 of 200
102. Question
Manganese is required in :
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Question 103 of 200
103. Question
Oxygenic photosynthesis occurs in :
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Question 104 of 200
104. Question
A fruit developed from hypanthodium inflorescence is called :
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Question 105 of 200
105. Question
The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is –
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Question 106 of 200
106. Question
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Question 107 of 200
107. Question
An example of axile placentation is –
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Question 108 of 200
108. Question
In barley stem vascular bundles are –
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Question 109 of 200
109. Question
Aerobic respiratory pathway is appropriately termed :-
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Question 110 of 200
110. Question
Palisade parenchyma is absent in leaves of –
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Question 111 of 200
111. Question
Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of :
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Question 112 of 200
112. Question
Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by :
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Question 113 of 200
113. Question
Cyclic photophosphorylation results in the formation of :
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Question 114 of 200
114. Question
In a standard ECG which one of the following alphabets is the correct represention of the respective activity of the human heart ?
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Question 115 of 200
115. Question
Uric acid is the chief nitrogenous component of the excretory products of –
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Question 116 of 200
116. Question
Which one of the following pairs of food compounds in humans reaches the stomach totally undigested –
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Question 117 of 200
117. Question
Which one of the following is correct pairing of a body part and like kind of muscle tissue that moves it ?
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Question 118 of 200
118. Question
Compared to blood our lymph has :
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Question 119 of 200
119. Question
What will happen if the stretch receptors of the urinary bladder wall are totally removed ?
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Question 120 of 200
120. Question
Which part of human brain is concerned with the regulation of body temperature ?
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Question 121 of 200
121. Question
According to MO theory which of the following lists ranks the nitrogen species in terms of increasing bond order :
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Question 122 of 200
122. Question
In the case of alkali metals, the covalent character decreases in the order :
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Question 123 of 200
123. Question
Which of the following oxides is not expected to react with sodium hydroxide ?
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Question 124 of 200
124. Question
Al\(_2\)O\(_3\) is reduced by electrolysis at low potentials and high currents. If 4.0 × 10\(_4\) amperes of current is passed through molten Al\(_2\)O\(_3\) for 6 hours, what mass of aluminium is produced ? (Assume 100% current efficiency, at. mass of Al = 27 g mol\(^{–1}\)) –
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Question 125 of 200
125. Question
The stability of +1 oxidation state increases in the sequence :
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Question 126 of 200
126. Question
Copper crystallizes in a face-centred cubic lattice with a unit cell length of 361 pm. What is the radius of copper atom in pm ?
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Question 127 of 200
127. Question
What is the dominant intermolecular force or bond that must be overcome in converting liquid CH\(_3\)OH to a gas –
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Question 128 of 200
128. Question
Which of the following complex ions is expected to absorb visible light ?
(At no. Zn = 30, Sc = 21, Ti = 22, Cr = 24)
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Question 129 of 200
129. Question
Out of TiF\(^{2-}_6\) and CoF\(^{3-}_6\) , Cu\(_2\)Cl\(_2\) and NiCl\(^{2-}_4\) (Z of Ti = 22, Co = 27, Cu = 29, Ni = 28) the colourless species are : –
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Question 130 of 200
130. Question
Which of the following does not show optical isomerism –
(en = Ethylenediamine)
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Question 131 of 200
131. Question
Which one of the elements with the following outer orbital configurations may exhibit the largest number of oxidation states ?
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Question 132 of 200
132. Question
Which of the following molecules acts as a Lewis acid ?
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Question 133 of 200
133. Question
Amongst the element with following electronic configurations, which one of them may have the highest ionization energy ?
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Question 134 of 200
134. Question
The straight chain polymer is formed by –
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Question 135 of 200
135. Question
The IUPAC name of the compound having the formula CH\(\equiv \)C–CH=CH\(_2\) is –
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Question 136 of 200
136. Question
Which of the following compounds will exhibit cis-trans (geometrical) isomerism ?
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Question 137 of 200
137. Question
H\(_2\)COH.CH\(_2\)OH on heating with periodic acid gives :
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Question 138 of 200
138. Question
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Question 139 of 200
139. Question
Benzene reacts with CH[mathjac]\(_3\)Cl in the presence of anhydrous AlCl\(_3\) to form –
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Question 140 of 200
140. Question
Nitrobenzene can be prepared from benzene by using a mixture of conc. HNO\(_3\) and conc. H\(_2\)SO\(_4\). In the mixture, nitric acid acts as a/an –
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Question 141 of 200
141. Question
Which of the following reactions is an example of nucleophilic substitution reaction ?
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Question 142 of 200
142. Question
Which one of following is employed as a tranquilizer ?
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Question 143 of 200
143. Question
Structures of some common polymers are given which one is not correctly presented ?
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Question 144 of 200
144. Question
Predict the product :
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Question 145 of 200
145. Question
Propionic acid with Br\(_2\) / P yields a dibromo product, Its structure would be –
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Question 146 of 200
146. Question
Trichloroacetaldehyde, CCl\(_3\)CHO reacts with chlorobenzene in presence of sulphuric acid and produces –
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Question 147 of 200
147. Question
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Question 148 of 200
148. Question
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Question 149 of 200
149. Question
The segment of DNA which acts as the instrument manual for the synthesis of the protein is :
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Question 150 of 200
150. Question
Which of the following hormones contains iodine ?
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Question 151 of 200
151. Question
A young infant may be feeding entirely on mother’s milk which is white in colour but the stools which the infant passes out is quite yellowish. What is this yellow colour due to ?
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Question 152 of 200
152. Question
Globulins contained in human blood plasma are primarily involved in –
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Question 153 of 200
153. Question
Seminal plasma in humans is rich in :
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Question 154 of 200
154. Question
Given below is a diagrammatic sketch for a portion of human male reproductive system. Select the correct set of the names of the parts labelled A, B, C, D.
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Question 155 of 200
155. Question
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Question 156 of 200
156. Question
Which one of the following statement is true regarding digestion and absorption of food in humans :
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Question 157 of 200
157. Question
Which one of the following correctly described the location of some body parts in the earthworm Pheretima ?
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Question 158 of 200
158. Question
Elbow joint is an example of :
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Question 159 of 200
159. Question
Which one of the following is considered important in the development of seed habit ?
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Question 160 of 200
160. Question
One of the synthetic auxin is :
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Question 161 of 200
161. Question
Which one of the following acids is a derivative of carotenoids ?
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Question 162 of 200
162. Question
Vegetative propagation in mint occurs by :
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Question 163 of 200
163. Question
Which one of the following plants is monoecios ?
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Question 164 of 200
164. Question
Foetal ejection reflex in human female is induced by
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Question 165 of 200
165. Question
Which of the following is the correct matching of the events occurring during menstrual cycle ?
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Question 166 of 200
166. Question
Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female ?
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Question 167 of 200
167. Question
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is :
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Question 168 of 200
168. Question
A change in the amount of yolk and its distribution in the egg will effect :
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Question 169 of 200
169. Question
When breast feeding is replaced by less nutritive food low in proteins and calories, the infants below the age of one year are likely to suffer from :
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Question 170 of 200
170. Question
Which one of the following types organisms occupy more than one trophic level in a pond ecosystem ?
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Question 171 of 200
171. Question
Which one of the following has maximum genetic diversity in India ?
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Question 172 of 200
172. Question
Montreal protocol aims at :
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Question 173 of 200
173. Question
Chipko movement was launched for the protection of –
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Question 174 of 200
174. Question
The correct sequence of plants in hydrosere is :
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Question 175 of 200
175. Question
A country with a high rate of population growth took measures to reduce it. The figure below shows age-sex pyramids of populations A and B twenty years apart. Select the correct interpretation about them : –
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Question 176 of 200
176. Question
Step taken by the Government of India to control air pollution include :
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Question 177 of 200
177. Question
Biochemical Oxygen Demand (BOD) in a river water :
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Question 178 of 200
178. Question
DDT residues are rapidly passed through food chain causing biomagnification because DDT is :
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Question 179 of 200
179. Question
Global agreement in specific control strategies to reduce the release of ozone depleting substances, was adopted by :
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Question 180 of 200
180. Question
Somaclones are obtained by : –
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Question 181 of 200
181. Question
Which one is the wrong pairing for the disease and its causal organism ?
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Question 182 of 200
182. Question
Which of the following is not used as a biopesticide ?
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Question 183 of 200
183. Question
Which of the following plant species you would select for the production of bioethanol ?
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Question 184 of 200
184. Question
Which of the following is a symbiotic nitrogen fixer ?
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Question 185 of 200
185. Question
A health disorder that results from the deficiency of thyroxine in adults and characterized by (i) a low metabolic rate (ii) increase in body weight and (iii) tendency to retain water in tissues is :
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Question 186 of 200
186. Question
Which one of the following statement is correct ?
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Question 187 of 200
187. Question
Which of following is a pair of viral diseases ?
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Question 188 of 200
188. Question
A person likely to develop tetanus is immunized by administering :
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Question 189 of 200
189. Question
Use of anti-histamines and steroids give a quick relief from –
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Question 190 of 200
190. Question
Alzhimer disease in humans is associated with the deficiency of :
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Question 191 of 200
191. Question
which one of the following is commonly used in transfer of foreign DNA into crop plants ?
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Question 192 of 200
192. Question
The bacterium Bacillus thuringiensis is widely used in contemporary biology as –
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Question 193 of 200
193. Question
Which one of the following pairs is wrongly matched ?
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Question 194 of 200
194. Question
Polyethylene glycol method is used for :
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Question 195 of 200
195. Question
Transgenic plants are the ones –
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Question 196 of 200
196. Question
What is true about Bt toxin ?
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Question 197 of 200
197. Question
The genetic defect-adenosine deaminase (ADA) deficiency may be cured permanently by
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Question 198 of 200
198. Question
There is no DNA in :
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Question 199 of 200
199. Question
The letter T in T-lymphocyte refers to :
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Question 200 of 200
200. Question
Tiger is not a resident in which one of the following National Park ?
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