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Question 1 of 200
1. Question
Category: PhysicsA particle of mass m is projected with velocity v making an angle of 45º with the horizontal from level ground. When the particle lands on the level ground the magnitude of the change in its momentum will be –
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Question 2 of 200
2. Question
Category: PhysicsA long solenoid has 500 turns. When a current of 2 ampere is passed through it, the resulting magnetic flux linked with each turn of the solenoid is 4 \(\times \)10\(^{–3}\) Wb. The self-inductance of the solenoid is –
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Question 3 of 200
3. Question
Category: PhysicsA particle of mass m, charge Q and kinetic energy T enters a transverse uniform magnetic field of induction \(\vec {B}\) . After 3 seconds the kinetic energy of the particle will be –
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Question 4 of 200
4. Question
Category: PhysicsThe distance travelled by a particle starting from rest and moving with an acceleration\(\frac{4}{3}\) ms\(^{–2}\), in the third second is –
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Question 5 of 200
5. Question
Category: PhysicsA particle of mass 1 mg has the same wavelength as an electron moving with a velocity of 3 \( \times \) 10\(^{6}\)] ms\(^{–1}.\)The velocity of the particle is :(mass of electron = 9.1 \(\times \)10\(^{–31}\)kg)
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Question 6 of 200
6. Question
Category: PhysicsSand is being dropped on a conveyor belt at the rate of M kg/s. The force necessary to keep the belt moving with a constant velocity of v m/s will be –
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Question 7 of 200
7. Question
Category: PhysicsA thin conducting ring of radius R is given a charge + Q. The electric field at the centre O of the ring due to the charge on the part AKB of the ring is E. The electric field at the centre due to the charge on the part ACDB of the ring is –
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Question 8 of 200
8. Question
Category: PhysicsTwo nuclei have their mass numbers in the ratio of 1 : 3. The ratio of their nuclear densities would be –
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Question 9 of 200
9. Question
Category: PhysicsIf M(A, Z), M\( _{p}\) and Mn denote the masses of the nucleus
X , proton and neutron respectively in units of u (1 u = 931.5 MeV/C\(^{2})\) and BE represents its bonding energy in MeV, then –
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Question 10 of 200
10. Question
Category: PhysicsA particle moves in a straight line with a constant acceleration. It changes its velocity from 10 ms\(^{–1}\) to 20 ms\(^{–1}\) while passing through a distance 135 m in t second. The value of t is –
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Question 11 of 200
11. Question
Category: PhysicsA particle shows distance-time curve as given in this figure. The maximum instantaneous velocity of the particle is around the point :
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Question 12 of 200
12. Question
Category: PhysicsAn electric kettle takes 4 A current at 220 V. How much time will it take to boil 1 kg of water from temperature\(20^{º}C ?\) The temperature of boiling water is 100ºC.
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Question 13 of 200
13. Question
Category: PhysicsIn the phenomenon of electric discharge through gases at low pressure, the coloured glow in the tube appears as a result of –
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Question 14 of 200
14. Question
Category: PhysicsThe circuit is equivalent to –
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Question 15 of 200
15. Question
Category: PhysicsIf the error in the measurement of radius of a sphere is 2 % then the error in the determination of volume of the sphere will be –
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Question 16 of 200
16. Question
Category: PhysicsA thin rod of length L and mass M is bent at its midpoint into two halves so that the angle between them is 90\(^{º}\). The moment of inertia of the bent rod about an axis passing through the bending point and perpendicular to the plane defined by the two halves of the rod is –
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Question 17 of 200
17. Question
Category: PhysicsA p-n photodiode is made of a material with a band gap of 2.0 eV. The minimum frequency of the radiation that can be absorbed by the material is nearly :
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Question 18 of 200
18. Question
Category: PhysicsTwo periodic waves of intensities I\(_1\) and I\(_2\) pass through a region at the same time in the same direction. the sum of the maximum and minimum intensities is –
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Question 19 of 200
19. Question
Category: PhysicsIf Q, E and W denote respectively the heat added, change in internal energy and the work done by a closed cycle process, then :
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Question 20 of 200
20. Question
Category: PhysicsIn the circuit shown, the current through the 4\(\Omega\) resistor is 1 amp when the points P and M are connected to a D.C. voltage source. The potential difference between the points M and N is –
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Question 21 of 200
21. Question
Category: PhysicsOn a new scale of temperature (which is linear) and called the W scale, the freezing and boiling points of water are\( 39^{º}\) W and\( 239^{º}\) W respectively. What will be the temperature on the new scale, corresponding to a temperature of \(39^{º}\)C on the Celsius scale ?
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Question 22 of 200
22. Question
Category: PhysicsThe wave described by \(y = 0.25 sin (10\pi x – 2 \pi f),\) where x and y are in metres and t in seconds, is a wave travelling along the –
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Question 23 of 200
23. Question
Category: PhysicsThe electric potential at a point in free space due to a charge Q coulomb is Q \(\times 10^{11}\) volts. The electric field at that point is –
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Question 24 of 200
24. Question
Category: PhysicsThe velocity of electromagnetic radiation in a medium of permittivity\( \varepsilon _{0}\) and permeability\( \mu_{0}\) is given by :
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Question 25 of 200
25. Question
Category: PhysicsTwo points are located at a distance of 10 m and 15 m from the source of oscillation. The period of oscillation is 0.05 sec and the velocity of the wave is 300 m/s. What is the phase difference between the oscillations of two points ?
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Question 26 of 200
26. Question
Category: PhysicsTwo simple Harmonic Motions of angular frequency 100 and 1000 rad s\( ^{–1}\) have the same displacement amplitude. The ratio of their maximum accelerations is –
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Question 27 of 200
27. Question
Category: PhysicsIf the lattice parameter for a crystalline structure is 3.6
, then the atomic radius in fcc crystal is –
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Question 28 of 200
28. Question
Category: PhysicsWater falls from a height of 60 m at the rate of15 kg/s to operate a turbine. The losses due to frictional forces are 10 % of energy. How much power is generated by the turbine ? (g = 10 m/s\(^{2})\)
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Question 29 of 200
29. Question
Category: PhysicsThe energy required to charge a parallel plate condenser of plate separation d and plate area of cross-section A such that the uniform electric field between the plates is E, is :
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Question 30 of 200
30. Question
Category: PhysicsA boy is trying to start a fire by focusing Sunlight on a piece of paper using an equiconvex lens of focal length 10 cm. The diameter of the Sun is 1.39 \(\times \)10\(^{9}\) m and its mean distance from the earth is 1.5 \(\times\) 10\(^{11} m\). What is the diameter of the Sun’s image on the paper ?
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Question 31 of 200
31. Question
Category: PhysicsA closed loop PQRS carrying a current is placed in a uniform magnetic field. If the magnetic forces on segments PS, SR and RQ are F\(_{1}\), F\(_{2}\) and F\(_3\) respectively and are in the plane of the paper and along the directions shown, the forceon the segment QP is :
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Question 32 of 200
32. Question
Category: PhysicsA wire of a certain material is stretched slowly by ten percent. Its new resistance and specific resistance become respectively –
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Question 33 of 200
33. Question
Category: PhysicsCurie temperature is the temperature above which –
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Question 34 of 200
34. Question
Category: PhysicsWhich two of the following five physical parameters have the same dimensions ?
(a) Energy density
(b) Refractive index
(c) Dielectric constant
(d) Young’s modulus
(e) Magnetic field
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Question 35 of 200
35. Question
Category: PhysicsThe ground state energy of hydrogen atom is –13.6 eV. When its electron is in the first excited state, its excitation energy is –
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Question 36 of 200
36. Question
Category: PhysicsThe voltage gain of an amplifier with 9 % negative feedback is 10. The voltage gain without feedback will be –
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Question 37 of 200
37. Question
Category: PhysicsA galvanometer of resistance\( 50 \Omega\) is connected to a battery of 3V along with a resistance of\( 2950 \Omega\) in series. A full scale deflection of 30 divisions is obtained in the galvanometer. In order to reduce this deflection to 20 divisions, the resistance in series should be –
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Question 38 of 200
38. Question
Category: PhysicsA shell of mass 200 g is ejected from a gun of mass 4 kg by an explosion that generates 1.05 kJ of energy. The initial velocity of the shell is –
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Question 39 of 200
39. Question
Category: PhysicsIn an A.C. circuit the emf (e) and the current (i) at any instant are given respectively by:
\(e =E_{0} sin \omega{t}\)
\(i = I_{0} sin (\omega{t}- \phi)\)
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Question 40 of 200
40. Question
Category: PhysicsThree forces acting on a body are shown in the figure. To have the resultant force only along the y-direction, the magnitude of the minimum additional force needed is –
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Question 41 of 200
41. Question
Category: PhysicsA current of 3 amp. flows through the\( 2\Omega\) resistor shown in the circuit. The power dissipated in the \( 5\Omega\) resistor is –
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Question 42 of 200
42. Question
Category: PhysicsTwo radioactive materials X\(_{1}\) and X\(_{2}\) have decay constants 5\(\lambda \)and\( \lambda\) respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of X\(_{1}\) to that of X\( _{2}\) will be \(\frac{1}{e}\) after a time –
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Question 43 of 200
43. Question
Category: PhysicsThe work function of a surface of a photosensitive material is 6.2 eV. The wavelength of the incident radiation for which the stopping potential is 5 V lies in the :
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Question 44 of 200
44. Question
Category: PhysicsA point performs simple harmonic oscillation of period T and the equation of motion is given by x = a sin \((\omega t + \pi/6)\). After the elapse of what fraction of the time period the velocity of the point will be equal to half of its maximum velocity ?
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Question 45 of 200
45. Question
Category: PhysicsTwo thin lenses of focal lengths f1 and f2 are in contact and coaxial. The power of the combination is –
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Question 46 of 200
46. Question
Category: PhysicsAt \(10^{º}C\) the value of the density of a fixed mass of an ideal gas divided by its pressure is x. At\( 110^{º}\)C this ratio is –
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Question 47 of 200
47. Question
Category: PhysicsA roller coaster is designed such that riders experience “weightlessness” as they go round the top of a hill whose radius of curvature is 20m. The speed of the car at the top of the hill is between –
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Question 48 of 200
48. Question
Category: PhysicsA circular disc of radius 0.2 metre is placed in a uniform magnetic field of induction\(\frac{1}{\pi} (\frac{Wb}{m^{2}})\) in such a way that its axis makes an angle of\( 60^{º}\) with\( \vec {B}.\) The magnetic flux linked with the disc is –
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Question 49 of 200
49. Question
Category: PhysicsThe ratio of the radii of gyration of a circular disc to that of a circular ring, each of same mass and radius around their respective axes is –
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Question 50 of 200
50. Question
Category: PhysicsA cell can be balanced against 110 cm and 100 cm of potentiometer wire, respectively with and without being short circuited through a resistance of \(10 \Omega\). Its internal resistance is –
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Question 51 of 200
51. Question
Category: ChemistryWhich one of the following arrangements does not give the correct picture of the trends indicated against it ?
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Question 52 of 200
52. Question
Category: ChemistryIf a gas expands at constant temperature, it indicates that :
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Question 53 of 200
53. Question
Category: ChemistryThe dissociation equilibrium of a gas AB2 can be represented as :\(2AB_{2}(g) \rightleftharpoons 2 AB(g) + B_{2}(g)\) The degree of dissociation is ‘x’ and is small compared to 1. The expression relating the degree of dissociation (x) with equilibrium constant \(K_{p}\) and total pressure P is –
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Question 54 of 200
54. Question
Category: ChemistryThe bromination of acetone that occurs in acid solution is represented by this equation. \(CH_{3}COCH_{3}(aq.) + Br_{2}(aq.) \to CH_{3}COCH_{2}Br(aq.) + H^{+} (aq.) + Br^{-} (aq.)\) These kinetic data were obtained from given reaction concentrations.
Initial rate, disappearance of\( Br_{2}, Ms^{–1}\)
\(5.7 \times 10^{-5}\)
\(5.7 \times 10^{-5}\)
\(1.2 \times 10^{-4}\)
\(3.1 \times 10^{-4}\)
Based on these data, the rate equation is :
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Question 55 of 200
55. Question
Category: ChemistryIf the concentration of OH– ions in the reaction,\(Fe(OH)_{3}(s) \rightleftharpoons Fe^{3+} (aq.) + 3OH^{-} (aq.)\) is decreased by\(\frac{1}{4}\) times, then equilibrium concentration of\( Fe^{3+}\) will increase by –
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Question 56 of 200
56. Question
Category: ChemistryWhat volume of oxygen gas \((O_{2})\) measured at \(0^{º}\)C and 1 atm, is needed to burn completely one litre, of propane gas\( (C_{3}H_{8})\) measured under the same conditions ?
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Question 57 of 200
57. Question
Category: ChemistryEqual volumes of three acid solutions of pH 3, 4 and 5 are mixed in a vessel. What will be the H\(^{+}\) ion concentration in the mixture ?
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Question 58 of 200
58. Question
Category: ChemistryThe relative reactivities of acyl compounds towards nucleophilic substitution are in the order of –
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Question 59 of 200
59. Question
Category: ChemistryIn DNA, the complementary bases are –
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Question 60 of 200
60. Question
Category: ChemistryBase strength of –
(i)\( H_{3} C \Theta ^{CH}_{2}\) (ii)\( H_{2} =\Theta ^{CH}\) and
(iii)\( H – C \equiv \Theta C\) is in the order of –
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Question 61 of 200
61. Question
Category: ChemistryEquimolar solutions of the following were prepared in water separately. Which one of the solutions will record the highest pH ?
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Question 62 of 200
62. Question
Category: ChemistryThe sequence of ionic mobility in aqueous solutions is –
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Question 63 of 200
63. Question
Category: ChemistryIf uncertainty in position and momentum are equal, then uncertainty in velocity is –
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Question 64 of 200
64. Question
Category: ChemistryHow many stereoisomers does this molecule have ?
\(CH_{3}CH = CHCH_{2}CHBrCH_{3}\)
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Question 65 of 200
65. Question
Category: ChemistryOn the basis of the following\( E^{º}\) values, the strongest oxidizing agent is :
[Fe(CN)\(_{6}]^{4-}\) \(\to\) [Fe(CN)\(_{6}]^{3-}\) + e\(^{-1} \),E\(^{º} \)= -0.35 V
Fe\(^{2+}\) \(\to\) Fe\(^{3+}\) + ev\(^{-1}\), E\(^{º}\) = – 0.77 V
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Question 66 of 200
66. Question
Category: ChemistryThe correct order of decreasing second ionization enthalpy of Ti = 22, V = 23, Cr = 24 and Mn = 25 is –
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Question 67 of 200
67. Question
Category: ChemistryWhich one of the following is most reactive towards electrophilic attack ?
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Question 68 of 200
68. Question
Category: ChemistryFour diatomic species are listed below in different sequences. Which of these presents the correct order of their increasing bond order ?
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Question 69 of 200
69. Question
Category: ChemistryHow many moles of lead (II) chloride will be formed from a reaction between 6.5 g of PbO and 3.2 g of HCl ?
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Question 70 of 200
70. Question
Category: ChemistryThe stability of carbanions in the following :
is in the order of :
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Question 71 of 200
71. Question
Category: ChemistryAcetophenone when reacted with a base,C\(_{2}\) H\(_{5}\)ONa, yields a stable compound which has the structure :
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Question 72 of 200
72. Question
Category: ChemistryVolume occupied by one molecule of water (density = 1g cm\(^{–3})\) is :
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Question 73 of 200
73. Question
Category: ChemistryBond dissociation enthalpy of H\(_{2}\), Cl\(_{2}\) and HCl are 434, 242 and 431 kJ mol\(^{–1}\) respectively. Enthalpy of formation of HCl is –
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Question 74 of 200
74. Question
Category: ChemistryWhich of the following complexes exhibits the highest paramagnetic behaviour ?
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Question 75 of 200
75. Question
Category: ChemistryWhich one of the following statements is not true ?
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Question 76 of 200
76. Question
Category: ChemistryIn a reaction of aniline a coloured product (C) was obtained.
The structure of (C) would be –
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Question 77 of 200
77. Question
Category: ChemistryFor the gas phase reaction, PCl\(_{5}\)(g) \(\rightleftharpoons \) PCl\(_{3}\)(g) + Cl\(_{2}\)(g) Which of the following conditions are correct
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Question 78 of 200
78. Question
Category: ChemistryThe measurement of the electron position is associated with an uncertainty in momentum, which is equal to 1 × 10\(^{–18}\) g cm s\(^{–1}\). The uncertainty in electron velocity is :
(Mass of an electron is 9 × 10\(^{–28}\) g)
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Question 79 of 200
79. Question
Category: ChemistryThe angular shape of ozone molecule (O\(_{3}\)) consists of –
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Question 80 of 200
80. Question
Category: ChemistryPercentage of free space in a body centered cubic unit cell is –
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Question 81 of 200
81. Question
Category: ChemistryThe value of equilibrium constant of the reaction, HI(g)\( \rightleftharpoons \) 1/2 H\(_{2}\)(g) + 1/2I\(_{2}\) (g) is 8.0. The equilibrium constant of the reaction, H\(_{2}\)(g) + I\(_{2}\)(g)\( \rightleftharpoons \) 2HI(g) will be –
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Question 82 of 200
82. Question
Category: ChemistryThe value of 1 K\(_{p}\) and 2 K\(_{p}\) for the reactions
X \( \rightleftharpoons \) Y+Z …..(1)
A \( \rightleftharpoons \) 2B …..(2)
are in ratio of 9 : 1. If degree of dissociation of X and A be equal, then total pressure at equilibrium (1) and (2) are in the ratio :
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Question 83 of 200
83. Question
Category: ChemistryWhich one of the following is an amine hormone ?
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Question 84 of 200
84. Question
Category: ChemistryKohlrausch’s Law states that at :
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Question 85 of 200
85. Question
Category: ChemistryGreen chemistry means such reactions which –
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Question 86 of 200
86. Question
Category: ChemistryWhich of the following statements is not correct ?
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Question 87 of 200
87. Question
Category: ChemistryIn a SN\(_{2}\) substitution reaction of the type R-Br+CI\(^{-\overset{DMF}{\rightarrow}}\)R-CI+Br\(^{-}\) Which one of the following has the highest relative rate ?
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Question 88 of 200
88. Question
Category: ChemistryThe correct order of increasing bond angles in the following triatomic species is :
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Question 89 of 200
89. Question
Category: ChemistryWith which one of the following elements silicon should be doped so as to give p-type of semiconductor?
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Question 90 of 200
90. Question
Category: ChemistryCorrectIncorrect -
Question 91 of 200
91. Question
Category: ChemistryAn organic compound contains carbon, hydrogen and oxygen. Its elemental analysis gave C, 38.71% and H, 9.67%. The empirical formula of the compound would be :
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Question 92 of 200
92. Question
Category: ChemistryIn which of the following co-ordination entities the magnitude of ∆O (CFSE in octahedral field) will be maximum?
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Question 93 of 200
93. Question
Category: ChemistryThe alkali metals form salt-like hydrides by the direct synthesis at elevated temperature. The thermal stability of these hydrides decreases in which of the following orders?
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Question 94 of 200
94. Question
Category: ChemistryWhich of the following are not state functions?
(I) q+w (II) q
(III) w (IV) H-TSCorrectIncorrect -
Question 95 of 200
95. Question
Category: ChemistryIn the hydrocarbon,
6 5 4 3 2 1
CH\(_{3}\)—CH=CH—CH\(_{2}\)—C≡CH
The state of hybridization of carbons 1, 3 and 5 are in the following sequence:
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Question 96 of 200
96. Question
Category: ChemistryNumber of moles of MnO\(^{-}_{4}\) required to oxidize one mole of ferrous oxalate completely in acidic medium will be
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Question 97 of 200
97. Question
Category: ChemistryThe rate constants k\(_{1}\) and k\(_{1}\) for two different reactions are 10\(^{16}\).e\(^{–2000/T}\) and 10\(^{15}\).e\(^{–1000/T}\), respectively, the temperature at which k\(_{1}\)=k\(_{2}\),, is:
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Question 98 of 200
98. Question
Category: ChemistryA strong base can abstract an α-hydrogen from:
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Question 99 of 200
99. Question
Category: ChemistryStandard free energies of formation (in kJ/mol) at 298 K are -237.2, -394.4 and -8.2 for H\(_{2}\)O(l), CO\(_{2}\)(g) and pentane(g) respectively The value of E\(_{0}\) cell for the pentane-oxygen fuel cell is:
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Question 100 of 200
100. Question
Category: ChemistryIf ‘a’ stands for the edge length of the cubic systems : simple cubic, body centered cubic and face centered cubic, then the ratio of radii of the spheres in these systems will be respectively.
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Question 101 of 200
101. Question
Category: BiologyA competitive inhibitor of succinic dehydrogenase is :
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Question 102 of 200
102. Question
Category: BiologySenescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in:
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Question 103 of 200
103. Question
Category: BiologyWhich one of the following statements is incorrect about menstruation?
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Question 104 of 200
104. Question
Category: BiologyWhich one of the following conditions in humans is correctly matched with its chromosomal abnormality/linkage?
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Question 105 of 200
105. Question
Category: BiologyIn leaves of C-4 plants malic acid synthesis during CO\(_{2}\) fixation occurs in:
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Question 106 of 200
106. Question
Category: BiologyWhat is true about the isolated small tribal populations?
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Question 107 of 200
107. Question
Category: BiologyThe Replum is present in the ovary of flower of:
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Question 108 of 200
108. Question
Category: BiologyUnisexuality of flowers prevents:
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Question 109 of 200
109. Question
Category: BiologyThe length of different internodes in a culm of sugarcane is variable because of:
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Question 110 of 200
110. Question
Category: BiologyWhich one of the following is not observed in biodiversity hotspots ?
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Question 111 of 200
111. Question
Category: BiologyWhich one of the following is the correct percentage of the two (out of the total of 4) greenhouse gases that contribute to the total global warming ?
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Question 112 of 200
112. Question
Category: BiologyThe two subunits of ribosome remain united at a critical ion level of :
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Question 113 of 200
113. Question
Category: BiologyGiven below are four methods (A-D) and their modes of action (1-4) in achieving contraception. Select their correct matching from the four options that follow:
Method Mode of Action
(1) The pill (a) Prevents sperms reaching cervix
(2) Condom (b) Prevents implantation
(3) Vasectomy (c) Prevents ovaulation
(4) Copper-T (d) Semen contains no spermsCorrectIncorrect -
Question 114 of 200
114. Question
Category: BiologyThe chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that Adenosine Tri-Phosphate (ATP) is formed because:
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Question 115 of 200
115. Question
Category: BiologyThe linking of antibiotic resistance gene with the plasmid vector became possible with:
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Question 116 of 200
116. Question
Category: BiologyThe rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of :
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Question 117 of 200
117. Question
Category: BiologyThorn of Bougainvillea and tendril of Cucurbita are examples of:
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Question 118 of 200
118. Question
Category: BiologyConsider the following four measures (1-4) that could be taken to successfully grow chickpea in an area where bacterial blight disease is common:
(i) Spray with Bordeaux mixture
(ii) Control of the insect vector of the disease pathogen
(iii) Use of only disease-free seeds
(iv) Use of varieties resistant to the disease
Which two of the above measures can control the disease?CorrectIncorrect -
Question 119 of 200
119. Question
Category: BiologyWorld Summit on Sustainable Development (2002) was held in:
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Question 120 of 200
120. Question
Category: BiologyDarwin’s Finches are an excellent examples of:
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Question 121 of 200
121. Question
Category: BiologyPolysome is formed by:
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Question 122 of 200
122. Question
Category: BiologyWhich one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?
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Question 123 of 200
123. Question
Category: BiologyThe fruit is chambered, developed from inferior ovary and has seeds with succulent testa in
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Question 124 of 200
124. Question
Category: BiologyEndosperm is consumed by developing embryo
in the seed of:CorrectIncorrect -
Question 125 of 200
125. Question
Category: BiologyIn the DNA molecule:
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Question 126 of 200
126. Question
Category: BiologyGiven below is a diagrammatic cross section of a single loop of human cochlea:
Which one of the following options correctly represents the names of three different parts?
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Question 127 of 200
127. Question
Category: BiologyWhich type of white blood cells are concerned with the release of histamine and the natural anti-coagulant heparin?
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Question 128 of 200
128. Question
Category: BiologyThermococcus, Methanococcus and Methanobacterium exemplify:
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Question 129 of 200
129. Question
Category: BiologyWhich one of the following is being tried in India as a biofuel substitute for fossil fuels?
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Question 130 of 200
130. Question
Category: BiologyDry indehiscent single-seeded fruit formed from
bicarpellary, syncarpous, inferior ovary is:CorrectIncorrect -
Question 131 of 200
131. Question
Category: BiologyWhich one of the following pairs of codons is
correctly matched with their function or the
signal for the particular amino acid?CorrectIncorrect -
Question 132 of 200
132. Question
Category: BiologySelect one of the following pairs of important features distinguishing Gnetum form Cycas and Pinus and showing affinities with angiosperms:
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Question 133 of 200
133. Question
Category: BiologyEarthworms have no skeleton but during burrowing the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to:
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Question 134 of 200
134. Question
Category: BiologyWhich one of the following is the true description about an animal concerned?
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Question 135 of 200
135. Question
Category: BiologyWhich extraembryonic membrane in humans
prevents desiccation of the embryo inside the
uterus?CorrectIncorrect -
Question 136 of 200
136. Question
Category: BiologyAbout 70% of total global carbon is found in:
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Question 137 of 200
137. Question
Category: BiologyHuman insulin is being commercially produced from a transgenic species of:
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Question 138 of 200
138. Question
Category: BiologyVacuole in a plant cell:
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Question 139 of 200
139. Question
Category: BiologyQuercus species are the dominant component in:
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Question 140 of 200
140. Question
Category: BiologyVascular tissues in flowering plants develop
from:CorrectIncorrect -
Question 141 of 200
141. Question
Category: BiologyGel electrophoresis is used for:
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Question 142 of 200
142. Question
Category: BiologyWhich one of the following pairs of organs includes only the endocrine glands?
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Question 143 of 200
143. Question
Category: BiologyHaploids are more suitable for mutation studies
than the diploids. This is because:CorrectIncorrect -
Question 144 of 200
144. Question
Category: BiologyConsider the following four statements (1-4) about certain desert animals such as kangaroo-rat.
(i) They have dark colour and high rate of reproduction and excrete solid urine
(ii) They do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs
(iii) They feed on dry seeds and do not required drinking water
(iv) They excrete very concentrated urine and do not use water to regulate body temperature Out of these four, which two are correct-
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Question 145 of 200
145. Question
Category: BiologyWhich one of the following is NOT a characteristic of phylum Annelida?
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Question 146 of 200
146. Question
Category: BiologyIn human adult females oxytocin:
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Question 147 of 200
147. Question
Category: BiologyThe most active phagocytic white blood cells are:
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Question 148 of 200
148. Question
Category: BiologyIn which one of the following, male and female gametophytes do not have free-living independent existence?
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Question 149 of 200
149. Question
Category: BiologyWhat is vital capacity of our lungs?
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Question 150 of 200
150. Question
Category: BiologyWhich one of the following is hetero-sporous?
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Question 151 of 200
151. Question
Category: BiologyThe blood calcium level is lowered by the deficiency of:
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Question 152 of 200
152. Question
Category: BiologyThe C\(_{4}\) plants are photosynthetically more efficient than C\(_{3}\) plants because:
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Question 153 of 200
153. Question
Category: BiologyWhich one of the following phyla is correctly matched with its two general characteristic?
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Question 154 of 200
154. Question
Category: BiologyIn germinating seeds fatty acids are degraded exclusively in the:
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Question 155 of 200
155. Question
Category: BiologyWhich one of the following is the correct difference between Rod cells and Cone cells of our retina?
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Question 156 of 200
156. Question
Category: BiologyIn the light of recent classification of living organisms into three domains of life (bacteria, archaea and eukarya), which one of the following statements is true about archaea?
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Question 157 of 200
157. Question
Category: BiologyWhich one of the following proved effective for biological control of nematodal disese in plants?
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Question 158 of 200
158. Question
Category: BiologyA lake near a village suffered heavy mortality of fishes within a few days. Consider the following reasons for this?
(i) Lots of urea and phosphate fertilizer were used in the crops in the vicinity
(ii) the area was sprayed with DDT by an aircraft
(iii) The lake water turned green and stinky
(iv) Phytoplankton populations in the lake declined initially thereby greatly reducing photosynthesis
Which two of the above were the main causes of fish mortality in the lake?CorrectIncorrect -
Question 159 of 200
159. Question
Category: BiologyThe table below gives the populations (in thousands) of ten species (A-J) in four areas (a-d) consisting of the number of habitats given within brackets against each. Study the table and answer the question which follows:
Which area out of a to d shows maximum species diversity?
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Question 160 of 200
160. Question
Category: BiologyDuring the propagation of a nerve impulse, the action potential results from the movement of:
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Question 161 of 200
161. Question
Category: BiologyConsider the following statements concerning food chains:
(i) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation
(ii) Removal of most of the carnivores resulted in an increased population of deers
(iii) The length of food chains is generally limited to 3-4 trophic levels due to energy loss
(iv) The length of food chains may vary from 2 to 8 trophic levels
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Question 162 of 200
162. Question
Category: BiologyModern detergents contain enzyme preparations of:
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Question 163 of 200
163. Question
Category: BiologyWhat is antisense technology?
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Question 164 of 200
164. Question
Category: BiologyCornea transplant in humans is almost never rejected. This is because:
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Question 165 of 200
165. Question
Category: BiologyWhich one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin of life?
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Question 166 of 200
166. Question
Category: BiologyIn humans, blood passes from the post caval to the diastolic right atrium of heart due to:
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Question 167 of 200
167. Question
Category: BiologyWhich one of the following is resistant to enzyme action?
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Question 168 of 200
168. Question
Category: BiologyAccording to Central Pollution Control Board (CPCB), which particulate size in diameter (in micrometers) of the air pollutants is responsible for greatest harm to human health?
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Question 169 of 200
169. Question
Category: BiologyCellulose is the major component of cell walls of :
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Question 170 of 200
170. Question
Category: BiologyWhat does the filiform apparatus do at the entrance into ovule?
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Question 171 of 200
171. Question
Category: BiologyMatch the disease in Column I with the appropriate items (pathogen/ prevention/ treatment) in Column II.
Column I Column II
(A) Amoebiasis (i) Treponemapallidium
(B) Diphtheria (ii) Use only sterilized food and water
(C) Cholera (iii) DPT Vaccine
(D) Syphilis (iv) Use oval rehydration therapyCorrectIncorrect -
Question 172 of 200
172. Question
Category: BiologyCarbohydrates are commonly found as starch in plant storage organs. Which of the following five (1-5) properties of starch make it useful as a storage material?
(1) Easily translocated
(2) Chemically non-reactive
(3) Easily digested by animals
(4) Osmotically inactive
(5) Synthesized during photosynthesisCorrectIncorrect -
Question 173 of 200
173. Question
Category: BiologyThe slow rate of decomposition of fallen logs in nature is due to their:
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Question 174 of 200
174. Question
Category: BiologyCry1 endotoxins obtained from Bacillus thuringiensis are effective against:
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Question 175 of 200
175. Question
Category: BiologyConsider the statements given below regarding contraception and answer as directed thereafter:
(i) Medical Termination of Pregnancy (MTP) during first trimester is generally safe(ii) Generally chances of conception are nil until mother breast-feeds the infant upto two years
(iii) Intrauterine devices like copper-T are effective contraceptives
(iv) Contraception pills may be taken upto one week after coitus to prevent conception
Which two of the above statement are correct?CorrectIncorrect -
Question 176 of 200
176. Question
Category: BiologyBacterial leaf blight of rice is caused by a species of:
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Question 177 of 200
177. Question
Category: BiologyTrichoderma harzianum has proved a useful microorganism for:
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Question 178 of 200
178. Question
Category: BiologyWhich one of the following pairs of items correctly belongs to the category of organs mentioned against it?
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Question 179 of 200
179. Question
Category: BiologyTo which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?
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Question 180 of 200
180. Question
Category: BiologyWhich one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?
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Question 181 of 200
181. Question
Category: BiologyA transgenic food crop which may help in solving the problem of night-blindness in developing countries is:
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Question 182 of 200
182. Question
Category: BiologyWhich one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product?
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Question 183 of 200
183. Question
Category: BiologyWhat will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?
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Question 184 of 200
184. Question
Category: BiologyNitrogen fixation in root nodules of Alnus is brought about by:
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Question 185 of 200
185. Question
Category: BiologyWhich one of the following is the correct statement regarding the particular psychotropic drug specified?
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Question 186 of 200
186. Question
Category: BiologyThe energy-releasing process in which the substrate is oxidized without an external electron acceptor is called:
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Question 187 of 200
187. Question
Category: BiologyThe haemoglobin of a human foetus:
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Question 188 of 200
188. Question
Category: BiologyWhich one of the following pairs of plant structures has haploid number of chromosomes?
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Question 189 of 200
189. Question
Category: BiologyWhich one of the following items gives its correct total number?
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Question 190 of 200
190. Question
Category: BiologyKeeping in view the “fluid mosaic model” for the structure of cell membrane, which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other (described as flip- flop movement)?
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Question 191 of 200
191. Question
Category: BiologyWhich one of the following is linked to the discovery of Bordeaux mixture as a popular fungicide?
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Question 192 of 200
192. Question
Category: BiologyMain objective of production/use of herbicide resistant GM crops is to:
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Question 193 of 200
193. Question
Category: BiologyWhich one of the following in birds, indicates their reptilian ancestry?
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Question 194 of 200
194. Question
Category: BiologyConsider the following statements about biomedical technologies,
(i) During open heart surgery blood is circulated in the heart-lung machine(ii) Blockage in coronary arteries is removed by angiography
(iii) Computerised Axial Tomography (CAT) shows detailed internal structure as seen in a section of body.
(iv) X-ray provides clear and detailed images of organs like prostate glands and lungs
Which two of the above statements are correct?
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Question 195 of 200
195. Question
Category: BiologyAscaris is characterized by :
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Question 196 of 200
196. Question
Category: BiologyIn humans, at the end of the first meiotic division, the male germ cells differentiate into the:
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Question 197 of 200
197. Question
Category: BiologyElectrons from excited chlorophyll molecule of photosystem II are accepted first by:
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Question 198 of 200
198. Question
Category: BiologyImportance of day length in flowering of plants was first shown in:
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Question 199 of 200
199. Question
Category: BiologyThe fleshy receptacle of syconus of fig encloses a number of:
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Question 200 of 200
200. Question
Category: BiologyWhich one of the following scientist’s name is correctly matched with the theory put fourth by him?
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