Official NEET UG 2006 Test
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Question 1 of 200
1. Question
In producing chlorine through electrolysis 100 watt power at 125V is being consumed. How much chlorine per minute is liberated? E.C.E. of chlorine is \(0.367 \times 10^{–6} kg/coulomb:-\)
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Question 2 of 200
2. Question
In the circuit shown, if a conducting wire is connected between points A and B, the current in this wire will-
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Question 3 of 200
3. Question
A rectangular block of mass m and area of cross- section A floats in a liquid of density \(\rho\). If it is given a small vertical displacement from equilibrium it undergoes oscillation with a time period T. Then:-
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Question 4 of 200
4. Question
A Carnot engine whose sink is at 300 K has an efficiency of 40%. By how much should the temperature of source be increased so as to increase its efficiency by 50% of original efficiency:-
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Question 5 of 200
5. Question
When a charged particle moving with velocity \(\vec{V}\) is subjected to a magnetic field of induction \(\vec{B}\), the force on it is non-zero. This implies the:-
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Question 6 of 200
6. Question
Two cells, having the same e.m.f., are connected in series through an external resistance R. Cell have internal resistances \(r_{1} and r_{2} (r_{1} > r_{2})\) respectively. When the circuit is closed, the potential difference across the first cell is zero. The value of R is:-
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Question 7 of 200
7. Question
A black body at \(1227^\circ C\) emits radiations with maximum intensity at a wavelength of 5000
. The temperature of the body is increased by \(1000^\circ C\), the maximum intensity will be observe at:-
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Question 8 of 200
8. Question
Two circular coil 1 and 2 are made from the same wire but the radius of the \(1^{st}\) coil is twice that of the \(2^{nd}\) coil. What potential difference in volts should be applied across them so that the magnetic field at their centres is the same-
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Question 9 of 200
9. Question
A transistor-oscillator using a resonant circuit with an inductor L (of negligible resistance) and a capacitor C in series produce oscillations of frequency f. If L is doubled and C is changed to 4C, the frequency will be:-
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Question 10 of 200
10. Question
The binding energy of deuteron is 2.2 MeV and that of \(^{4}_{2}He\) is 28MeV. If two deuterons are fused to form one \(^{4}_{2}He\) then the energy released is:-
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Question 11 of 200
11. Question
In a radioactive material the activity at time \(t_{1} is R_{1}\) and at a later time \(t_{2}\), it is \(R_{2}\). If the decay constant of the material is \(\lambda\), then
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Question 12 of 200
12. Question
Ionization potential of hydrogen atom is 13.6eV. Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. According to Bohr’s theory, the spectral lines emitted by hydrogen will be:-
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Question 13 of 200
13. Question
The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm the potential energy stored in it is:-
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Question 14 of 200
14. Question
For angles of projection of a projectile at angles \((45^\circ – \theta) and (45^\circ + \theta)\), the horizontal ranges described by the projectile are in the ratio of:
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Question 15 of 200
15. Question
A body of mass 3 kg is under a constant force which causes a displacement s in metres in it, given by the relation \(s = \frac{1}{3}t^{2}\), where t is in seconds. Work done by the force in 2 seconds is:-
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Question 16 of 200
16. Question
A particle moves along a straight line OX. At a time t (in seconds) the distance x (in metres) of the particle from O is given by \(x = 40 + 12t – t^{3}\). How long would the particle travel before coming to rest: –
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Question 17 of 200
17. Question
The velocity v of a particle at time t is given by \(v = at +\frac{b}{t+c}\), where a, b and c are constants. The dimensions of a, b and c are respectively:-
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Question 18 of 200
18. Question
A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again:-
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Question 19 of 200
19. Question
300 J of work is done in sliding a 2 kg block up an inclined plane of height 10m. Taking \(g = 10 m/s^{2}\), work done against friction is
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Question 20 of 200
20. Question
A transistor is operated in common emitter configuration at constant collector voltage \(V_{c} = 1.5 V\) such that a change in the base current from \(100 \mu A to 150 \mu A\) produces a change in the collector current from 5 mA to 10 mA. The current gain \((\beta)\) is:-
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Question 21 of 200
21. Question
A forward biased diode is:-
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Question 22 of 200
22. Question
A photo-cell employs photoelectric effect to convert:-
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Question 23 of 200
23. Question
The core of a transformer is laminated because:-
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Question 24 of 200
24. Question
Two coils of self inductances 2 mH and 8 mH are placed so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coils is:
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Question 25 of 200
25. Question
In a discharge tube ionization of enclosed gas produced due to collisions between:
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Question 26 of 200
26. Question
When photons of energy h? fall on an aluminium plate (of work function \(E_{0}\)), photoelectrons of maximum kinetic energy K are ejected. If the frequency of the radiation is doubled, the maximum kinetic energy of the ejected photoelectrons will be
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Question 27 of 200
27. Question
The following figure shows a logic gate circuit with two inputs A and B and the output C. The voltage waveforms of A, B and C are as shown below-
The logic circuit gate is:
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Question 28 of 200
28. Question
A coil of inductive reactance \(31 \Omega\) has a resistance of \(8 \Omega.\) It is placed in series with a condenser of capacity reactance \(25\Omega.\) The combination is connected to an a.c. source of 110 volt. The power factor of the circuit is:-
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Question 29 of 200
29. Question
A 0.5 kg ball moving with a speed of 12 m/s strikes a hard wall at an angle of \(30^\circ\) with the wall. It is reflected with the same speed and at the same angle. If the ball is in contact with the wall for 0.25 seconds, the average force acting on the wall is:-
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Question 30 of 200
30. Question
The moment of inertia of a uniform circular disc of radius ‘R’ and mass ‘M’ about an axis touching the disc at its diameter and normal to the disc is:-
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Question 31 of 200
31. Question
The momentum of a photon of energy 1MeV in kg m/s, will be-
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Question 32 of 200
32. Question
The radius of Germanium (Ge) nuclide is measured to be twice the radius of \(^{9}_{4}Be\). The number of nucleons in Ge are:-
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Question 33 of 200
33. Question
The molar specific heat at constant pressure of an ideal gas is \([\frac{7}{2}]R.\)The ratio of specific heat at constant pressure to that at constant volume is:-
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Question 34 of 200
34. Question
The Earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the Earth. The escape velocity of a body from this platform is fv, where v is its escape velocity from the surface of the Earth. The value of f is:-
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Question 35 of 200
35. Question
Two sound waves with wavelength 5.0 m and 5.5 m respectively, each propagate in a gas with velocity 330 m/s. We expect the following number of beats per second:-
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Question 36 of 200
36. Question
Power dissipated across the \(8 \Omega\) resistor in the circuit shown here is 2 watt. The power dissipated in watt units across the \(3 \Omega\) resistor is:-
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Question 37 of 200
37. Question
Kirchhoff’s first and second laws for electrical circuits are consequences of:-
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Question 38 of 200
38. Question
A transverse wave propagating along x-axis is represented by \(y(x , t)= 8.0 sin (0.5 \pi x – 4 \pi t – \frac{\pi}{4})\) where x is in metres and t is in seconds. The speed of the wave is:-
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Question 39 of 200
39. Question
The time of reverberation of a room A is one second. What will be the time (in seconds) of reverberation of a room, having all the dimensions double of those of room A-
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Question 40 of 200
40. Question
Which one of the following statements is true:
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Question 41 of 200
41. Question
Above Curie temperature:-
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Question 42 of 200
42. Question
A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact to form a combination of lenses. The power in dipoters of the combination is:-
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Question 43 of 200
43. Question
An electric dipole of moment \(\vec{p}\) is lying along a uniform electric field \(\vec{E}.\) The work done in rotating the dipole by \(90^\circ\) is:-
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Question 44 of 200
44. Question
A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates:-
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Question 45 of 200
45. Question
A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 seconds for every circular lap. The average velocity and average speed for each circular lap respectively is:
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Question 46 of 200
46. Question
A square surface of side L metres is in the plane of the paper. A uniform electric field \(\vec{E} (volt/m)\), also in the plane of the paper, is limited only to the lower half of the square surface, (see figure). The electric flux in SI units associated with the surface is:-
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Question 47 of 200
47. Question
A tube of length L is filled completely with an incompressible liquid of mass M and closed at both the ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity \(\omega\). The force exerted by the liquid at the other ends is:-
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Question 48 of 200
48. Question
A uniform rod of length l and mass m is free to rotate in a vertical plane about A. The rod initially in horizontal position is released. The initial angular acceleration of the rod is (Moment of inertia of rod about A is \(\frac{m \ell^{2}}{3}\)):
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Question 49 of 200
49. Question
The vectors \(\vec{A}\) and \(\vec{B}\) are such that\(|\vec{A} + \vec{B}| = |\vec{A} – \vec{B}|\) The angle between the two vectors is:-
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Question 50 of 200
50. Question
Two bodies, A(of mass 1kg) and B(of mass 3kg), are dropped from heights of 16 m and 25 m respectively. The ratio of the time taken by them to reach the ground is:-
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Question 51 of 200
51. Question
Identify the correct statement for change of Gibbs energy for a system \((\Delta G_{system})\) at constant temperature and pressure:-
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Question 52 of 200
52. Question
A solution containing \(10 g per dm^{3}\) of urea (molecular mass = \(60 g mol^{–1}\)) is isotonic with a 5% solution of a nonvolatile solute. The molecular mass of this nonvolatile solution is:
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Question 53 of 200
53. Question
A plot of log x/m versus log p for the adsorption of a gas on a solid gives a straight line with slope equal to:
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Question 54 of 200
54. Question
Assume each reaction is carried out in an open container. For which reaction will \(\Delta H = \Delta E ?\)
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Question 55 of 200
55. Question
In a set off reactions propionic acid yielded a compound D.
The structure of D would be:-
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Question 56 of 200
56. Question
During the process of digestion, the proteins present in food materials are hydrolysed to amino acids. The two enzymes involved in the process:
are respectively-
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Question 57 of 200
57. Question
The human body does not produce:-
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Question 58 of 200
58. Question
CsBr crystallizes in a body centred cubic lattice. The unit cell length is 436.6 pm. Given that the atomic mass of Cs = 133 and that of Br = 80 amu and Avogadro number being \(6.02 \times 10^{23} mol^{–1}\), the density of CsBr is:-
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Question 59 of 200
59. Question
More number of oxidation states are exhibited by the actinoids than by the lanthonoids. The main reason for this is:-
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Question 60 of 200
60. Question
Given: The mass of electron is \(9.11 \times 10^{–31}Kg\) Planck constant is \(6.626 \times 10^{–34}Js\), the uncertainty involved in the measurement of velocity within a distance of 0.1
is:-
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Question 61 of 200
61. Question
Copper sulphate dissolved in excess of KCN to give:-
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Question 62 of 200
62. Question
In which of the following pairs are both the ions coloured in aqueous solution-[At. No. : Sc = 21, Ti = 22, Ni = 28, Cu = 29, Co = 27]
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Question 63 of 200
63. Question
\(Al_{2}O_{3}\) can be converted to anhydrous \(AlCl_{3}\) by heating:-
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Question 64 of 200
64. Question
The enthalpy and entropy change for the reaction: \(Br_{2}(l) + Cl_{2}(g) \rightarrow 2BrCl(g)\)are \(30 kJ mol^{–1}\) and \(105 JK^{–1} mol^{–1}\) respectively. The temperature at which the reaction will be in equilibrium is:-
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Question 65 of 200
65. Question
The appearance of colour in solid alkali metal halides is generally due to :
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Question 66 of 200
66. Question
The general molecular formula, which represents the homologus series of alkanols is:-
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Question 67 of 200
67. Question
If \(E^{0}_{Fe^{2+}/Fe} = – 0.441 V\) and \(E^{0}_{Fe^{3+}/Fe^{2+}} = 0.771 V\), the standard EMF of the reaction : \(Fe + 2Fe^{3+} \rightarrow 3Fe^{2+}\) will be:
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Question 68 of 200
68. Question
For the reaction : \(2A + B \rightarrow 3C + D\) Which of the following does not express the reaction rate:-
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Question 69 of 200
69. Question
For the reaction :
\(CH_{4}(g) + 2O_{2}(g) \rightleftharpoons CO_{2}(g) + 2H_{2}O(\ell)\)
\(\Delta H_{r} = – 170.8 kJ mol^{–1}\)
Which of the following statements is not true:-CorrectIncorrect -
Question 70 of 200
70. Question
\([NH(CH_{2})NHCO(CH_{2})_{4}CO]_{n}\) is a:-
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Question 71 of 200
71. Question
A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of \(\alpha\) – hydroxy acid. The carbonyl compound is:
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Question 72 of 200
72. Question
Which one of the following is a peptide hormone:-
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Question 73 of 200
73. Question
The major organic product in the reaction, \(CH_{3}–O–CH(CH_{3})_{2} + HI \rightarrow\) Product is:
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Question 74 of 200
74. Question
Nucleophilic addition reaction will be most favoured in:-
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Question 75 of 200
75. Question
The enthalpy of hydrogenation of cyclohexene is \(–119.5 kJ mol^{–1}\). If resonance energy of benzene is \(–150.4 kJ mol^{–1}\), its enthalpy of hydrogenation would be:-
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Question 76 of 200
76. Question
Self condensation of two moles of ethyl acetate in presence of sodium ethoxide yields:-
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Question 77 of 200
77. Question
Consider the reaction
\(N_{2}(g) + 3H_{2}(g) \rightarrow 2NH_{3}(g)\)
The equality relationship between \(\frac{d[NH_{3}]}{dt}\) and \(- \frac{d[H_{2}]}{dt}\) is :-
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Question 78 of 200
78. Question
Which of the following is not chiral:-
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Question 79 of 200
79. Question
\([Co(NH_{3})_{4}(NO_{2})_{2}]Cl\) exhibits:-
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Question 80 of 200
80. Question
\([Cr(H_{2}O)_{6}]Cl_{3}\) (at. No. of Cr = 24) has a magnetic moment of 3.83 B.M. The correct distribution of 3d electrons in the Chromium of the complex is:-
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Question 81 of 200
81. Question
1.00 g of a non-electrolyte solute (molar mass \(250g mol^{–1}\)) was dissolved in 51.2 g of benzene. If the freezing point depression constant \(K_{f}\) of benzene is \(5.12 K kg mol^{–1}\), the freezing point of benzene will be lowered by:-
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Question 82 of 200
82. Question
Which of the following pairs constitutes a buffer:-
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Question 83 of 200
83. Question
The hydrogen ion concentration of a \(10^{–8}\)M HCl aqueous solution at 298 K (\(KW = 10^{–14}\)) is:-
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Question 84 of 200
84. Question
A solution of acetone is ethanol:-
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Question 85 of 200
85. Question
A hypothetical electrochemical cell is shown below:
The emf measured is +0.20V. The cell reaction is:
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Question 86 of 200
86. Question
Ethylene oxide when treated with Grignard reagent yields:-
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Question 87 of 200
87. Question
During osmosis, flow of water through a semipermeable membrane is:-
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Question 88 of 200
88. Question
Which of the following is more basic than aniline:-
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Question 89 of 200
89. Question
In which of the following molecules all the bonds are not equal:-
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Question 90 of 200
90. Question
The electronegativity difference between N and F is greater than that between N and H yet the dipole moment of \(NH_{3}(1.5 D)\) is larger than that of \(NF_{3} (0.2 D)\). This is because:-
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Question 91 of 200
91. Question
The correct order of the mobility of the alkali metal ions in aqueous solution is:
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Question 92 of 200
92. Question
The correct order regarding the electronegativity of hybrid orbitals of carbon is:-
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Question 93 of 200
93. Question
Which of the following species has a linear shape:-
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Question 94 of 200
94. Question
Which of the following is the most basic oxide:-
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Question 95 of 200
95. Question
The orientation of an atomic orbital is governed by:-
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Question 96 of 200
96. Question
Which of the following is not a correct statement:-
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Question 97 of 200
97. Question
The number of unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is:-
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Question 98 of 200
98. Question
Which one of the following orders is not in according with the property stated against it ?
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Question 99 of 200
99. Question
Which of the following is not isostructural with \(SiCl_{4}\):-
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Question 100 of 200
100. Question
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Question 101 of 200
101. Question
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids ?
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Question 102 of 200
102. Question
Pineapple (ananas) fruit develops from-
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Question 103 of 200
103. Question
Golden rice is a promising transgenic crop. When released for cultivation, it will help in
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Question 104 of 200
104. Question
Parthenocarpic tomato fruits can be produced by-
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Question 105 of 200
105. Question
How does pruning help in making the hedge dense ?
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Question 106 of 200
106. Question
The ‘blue baby’ syndrome results from-
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Question 107 of 200
107. Question
Praying mantis is a good example of-
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Question 108 of 200
108. Question
Which one of the following statements is correct ?
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Question 109 of 200
109. Question
Examination of blood of a person suspected of having anemia, shows large, immature, nucleated erythrocytes without haemoglobin. Supplementing his diet with which of the following is likely to alleviate his symptoms ?
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Question 110 of 200
110. Question
Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield ?
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Question 111 of 200
111. Question
In which of the following fruits is the edible part the aril ?
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Question 112 of 200
112. Question
Which one of the following amino-acids was not found to be synthesized in Miller’s experiment ?
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Question 113 of 200
113. Question
Crop plants grown in monoculture are-
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Question 114 of 200
114. Question
Montreal Protocol which calls for appropriate action to protect the ozone layer from human activities was passed in the year-
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Question 115 of 200
115. Question
The formula for exponential population growth is-
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Question 116 of 200
116. Question
Which one of the following is not used for construction of ecological pyramids ?
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Question 117 of 200
117. Question
Niche overlap indicates-
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Question 118 of 200
118. Question
In photosystem-I, the first electron acceptor is-
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Question 119 of 200
119. Question
Treatment of seed at low temperature under moist conditions to break its dormancy is called –
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Question 120 of 200
120. Question
Which one of the following is the most suitable medium for culture of Drosophila melanogaster ?
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Question 121 of 200
121. Question
Which one of the following is not included under in-situ conservation ?
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Question 122 of 200
122. Question
Which antibiotic inhibits interaction between tRNA and mRNA during bacterial protein synthesis ?
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Question 123 of 200
123. Question
Phenotype of an organism is the result of-
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Question 124 of 200
124. Question
Photochemical smog pollution does not contain-
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Question 125 of 200
125. Question
Moss peat is used as a packing material for sending flowers and live plants to distant places because-
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Question 126 of 200
126. Question
A common structural feature of vessel elements and sieve tube elements is-
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Question 127 of 200
127. Question
The thalloid body of a slime mould (Myxomycetes) is known as-
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Question 128 of 200
128. Question
In which mode of inheritance do you expect more maternal influence among the offspring ?
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Question 129 of 200
129. Question
What type of placentation is seen in sweet pea ?
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Question 130 of 200
130. Question
Long filamentous threads protruding at the end of a young cob of maize are-
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Question 131 of 200
131. Question
Conifers differ from grasses in the-
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Question 132 of 200
132. Question
How many different kinds of gametes will be produced by a plant having the genotype AABbCC ?
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Question 133 of 200
133. Question
In Maize, hybrid vigour is exploited by-
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Question 134 of 200
134. Question
Which of the following statements regarding mitochondrial membrane is not correct ?
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Question 135 of 200
135. Question
Amino acid sequence, in protein synthesis is decided by the sequence of-
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Question 136 of 200
136. Question
How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose to \(CO_{2}\) and\(H_{2}O\) yields 686 kcal and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 kcal ?
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Question 137 of 200
137. Question
An organic substance bound to an enzyme and essential for its activity is called –
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Question 138 of 200
138. Question
Bowman’s glands are found in-
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Question 139 of 200
139. Question
The bacterium (Clostridium botulinum) that causes botulism is-
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Question 140 of 200
140. Question
Which one of the following is the correctly matched pair of an endangered animal and a National Park ?
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Question 141 of 200
141. Question
A person showing unpredictable moods, outbursts of emotion, quarrelsome behaviour and conflicts with others is suffering from-
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Question 142 of 200
142. Question
Sulphur is an important nutrient for optimum growth and productivity in-
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Question 143 of 200
143. Question
Pentamerous, actinomorphic flowers, bicarpellary ovary with oblique septa, and fruit a capsule or berry, are characteristic features of-
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Question 144 of 200
144. Question
In a moss the sporophyte-
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Question 145 of 200
145. Question
Curing of tea leaves is brought about by the activity of-
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Question 146 of 200
146. Question
People living at sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at an altitude of 5400 metres have around 8 million. This is because at high altitude-
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Question 147 of 200
147. Question
An important evidence in favour of organic evolution is the occurrence of-
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Question 148 of 200
148. Question
Which one of the following is not a living fossil-
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Question 149 of 200
149. Question
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Question 150 of 200
150. Question
A major breakthrough in the studies of cells came with the development of electron microscope. This is because-
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Question 151 of 200
151. Question
Which one of the following is a matching set of phylum and its three examples ?
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Question 152 of 200
152. Question
Metameric segmentation is the characteristic of-
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Question 153 of 200
153. Question
Which of the following pairs of an animal and a plant represents endangered organisms in India-
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Question 154 of 200
154. Question
Jurassic period of the Mesozoic era characterized by-
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Question 155 of 200
155. Question
What is common about Trypanosoma, Noctiluca, Monocystis and Giardia-
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Question 156 of 200
156. Question
Which of the following statements regarding cilia is not correct –
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Question 157 of 200
157. Question
Two microbes found to be very useful in genetic engineering are-
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Question 158 of 200
158. Question
Which of the following environmental conditions are essential for optimum growth of Mucor on a piece of bread ?
A. Temperature of about \(25^{o}C\)
B. Temperature of about \(5^{o}C\)
C. Relative humidity of about5%
D. Relative humidity of about 95%
E. A shady place
F. A brightly illuminated place
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Question 159 of 200
159. Question
Evolutionary history of an organism is known as-
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Question 160 of 200
160. Question
Which of the following is considered a hot-spot of biodiversity in India ?
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Question 161 of 200
161. Question
During photorespiration the oxygen consuming reaction (s) occur in-
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Question 162 of 200
162. Question
Which one of the following is an example of polygenic inheritance ?
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Question 163 of 200
163. Question
Which one of the following does not act as a neurotransmitter ?
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Question 164 of 200
164. Question
Sertoli cells are regulated by the pituitary hormone known as-
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Question 165 of 200
165. Question
A steroid hormone which regulates glucose metabolism is-
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Question 166 of 200
166. Question
The contractile protein of skeletal muscle involving ATPase activity is-
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Question 167 of 200
167. Question
Which one of the following is not a second messenger in hormone action ?
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Question 168 of 200
168. Question
In Mendel’s experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the \(F_{2}\) generation of the cross \(RRYY \times rryy\)?
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Question 169 of 200
169. Question
One gene-one enzyme hypothesis was postulated by-
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Question 170 of 200
170. Question
One turn of the helix in a B-form DNA is approximately-
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Question 171 of 200
171. Question
Test cross involves-
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Question 172 of 200
172. Question
Antiparallel strands of a DNA molecule means that-
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Question 173 of 200
173. Question
Areolar connective tissue joins-
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Question 174 of 200
174. Question
Mast cells secrete-
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Question 175 of 200
175. Question
If a colourblind woman marries a normal visioned man, their sons will be –
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Question 176 of 200
176. Question
Cri-du-chat syndrome in humans is caused by the-
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Question 177 of 200
177. Question
Restriction endonuclease –
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Question 178 of 200
178. Question
Antibodies in our body are complex-
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Question 179 of 200
179. Question
Limit of BOD prescribed by Central Pollution Control Board for the discharge of industrial and municipal waste waters into natural surface waters, is –
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Question 180 of 200
180. Question
Earthworms are –
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Question 181 of 200
181. Question
Which of the following is an accumulation and release centre of neurohormones ?
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Question 182 of 200
182. Question
Withdrawal of which of the following hormones is the immediate cause of menstruation ?
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Question 183 of 200
183. Question
Which one of the following statements is incorrect ?
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Question 184 of 200
184. Question
Which one of the following has an open circulatory system ?
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Question 185 of 200
185. Question
Which hormone causes dilation of blood vessels, increased oxygen consumption an glucogenesis ?
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Question 186 of 200
186. Question
The causative agent of mad-cow disease is a-
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Question 187 of 200
187. Question
The translocation of organic solutes in sieve tube members is supported by-
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Question 188 of 200
188. Question
Biradial symmetry and lack of cnidoblasts are the characteristics of-
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Question 189 of 200
189. Question
The arrangement of the nuclei in a normal embryo sac in the dicot plants is-
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Question 190 of 200
190. Question
An enzyme that can stimulate germination of barley seeds is-
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Question 191 of 200
191. Question
In a cereal grain the single cotyledon of embryo is represented by –
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Question 192 of 200
192. Question
The majority of carbon dioxide produced by our body cells is transported to the lungs-
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Question 193 of 200
193. Question
Triticale, the first man-made cereal crop, has been obtained by crossing wheat with
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Question 194 of 200
194. Question
In order to obtain virus-free plants through tissue culture the best method is-
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Question 195 of 200
195. Question
HIV that causes AIDS, first starts destroying
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Question 196 of 200
196. Question
In which one of the following sets of animals do all the four give birth to young ones ?
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Question 197 of 200
197. Question
Sickle cell anemia has not been eliminated from the African population because-
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Question 198 of 200
198. Question
Two common characters found in centipede, cockroach, and crab are-
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Question 199 of 200
199. Question
Both sickle cell anemia and Huntington’s chorea are-
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Question 200 of 200
200. Question
Angiotensinogen is a protein produced and secreted by-
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