Ambition institute PART TEST - 1 Time : 3 ½ hours Please read the instructions carefully. You are allotted 5 minutes specifically for this purpose. You are not allowed to leave the examination hall before end of the test. Maximum Marks : 480 Instructions Note: 1. The question paper contains Physics, Mathematics and Chemistry section. 2. Each section contains 40 questions. Marking Scheme 1. For each question in the Section you will be awarded 4 marks if you have darkened only the bubble corresponding to the correct answer and zero marks if no bubble is darkened in all other cases, minus one ( 1) mark will be awarded. Name of the Candidate : ENROLMENT NUMBER : Useful Data Chemistry : Gas Constant R Avogadro's Number Na Planck’s Constant h 1 Faraday 1 calorie 1 amu 1 eV Atomic No : = = = = = = = = = = 8.314 J K1 mol1 0.0821 Lit atm K1 mol1 1.987 2 Cal K1 mol1 6.023 1023 6.626 10–34 Js 6.25 x 10-27 erg.s 96500 Coulomb 4.2 Joule 1.66 x 10-27 kg 1.6 x 10-19 J H=1, D=1, Li=3, Na=11, K=19, Rb=37, Cs=55, F=9, Ca=20, He=2, O=8, Au=79. Atomic Masses: He=4, Mg=24, C=12, O=16, N=14, P=31, Br=80, Cu=63.5, Fe=56, Mn=55, Pb=207, Au=197, Ag=108, F=19, H=2, Cl=35.5, Sn=118.6 Useful Data Physics : Acceleration due to gravity g = 10 m / s2 [Type text] BHIWANI CENTER PH 9896349071 PHYSICS Q.1. In the eqn. P a / V 2 V b constant, the units of a are ? (a) dyne cm5 (b) dyne cm4 (c) dyne / cm3 (d) dyne cm2 Q.2. The S.I. unit of pole strength is ? (a) A m2 (b) A m (d) A m-2 (c) A m-1 Q.3. If the time period (T) of vibration of a liquid drop depends on surface tension (S) radius (r) of the drop and density of the liquid, then the expression of T is ? (a) T k r 3 S (b) T k 1/ 2 r 3 S (c) T k r 3 S 1/ 2 (d) N.O.T Q.4. Which of the following do not have same dimensions ? (a) Force, surface tension (b) Angle, shear strain (c) Pressure, stress (d) Planck’s constant, angular momentum Q.5. Chronometer is used to measure ? (a) Time (b) mass (c) density (d) distance Q.6. A wire has a mass 0.3 0.003 g , radius 0.5 0.005 mm and length 6 0.06 cm. The maximum percentage error in the measurement of its density is ? (a) 1 (b) 2 (c) 3 (d) 4 Q.7. Out of the following pairs, which one does NOT have identical dimensions ? (a) Work and torque (b) moment of inertia and moment of a force (c) impulse and momentum (d) angular momentum and planck’s constant Q.8. Which of the following set have different dimensions ? (a) Pressure, Young’s modulus, Stress (b) Emf, potential difference, Electric potential (c) Heat, work done, energy (d) Dipole moment, Electric flux, Electric field a 2b 3 The percentage errors c d of measurement in a, b, c and d are 1%, 3%, 2% and 2% respectively. What is the percentage error in A ? (a) 12% (b) 7% (c) 14% (d) 16% Q.9. A physical quantity A is related to four observables a, b, c and d as follows A space for rough work [Type text] BHIWANI CENTER PH 9896349071 Q.10. A car accelerates from rest at a constant rate for some time, after which it deaccelerates at a constant rate and comes to rest. If the total time elapsed in t, then the maximum velocity acquired by the car is ? 2 2 (a) t 2 2 t (b) (c) Q.11. The velocity time graph of a body moving in a straight line is shown in the figure. The displacement and distance traveled by the body in 6 sec are respectively ? (a) 8 m, 16 m (b) 16 m, 8 m (c) 16 m, 16 m (d) 8 m, 8 m t (d) t m / s 5 4 3 2 1 0 1 2 3 2 1 3 5 4 t (sec) 6 Q.12. A car travels the first half of a distance between two places at a speed of 30 km/hr and the second half of the distance at 50 km/r. The average speed of the car for the whole journey is ? (a) 42.5 km/hr (b) 40.0 km/r (c) 37.5 km/hr (d) 35.0 km/hr Q.13. A particle is dropped vertically from rest from a height. The time taken by it to fall through successive distances of 1 m each will then be ? (a) All equal, being equal to 2 / g second (b) In the ratio of the square roots of the integers 1, 2, 3,…. (c) In the ratio of the difference in the square roots of the integers i.e. 1, 2 1 , 3 2 , 4 3 ..... 1 1 1 1 , , , (d) In the ratio of the reciprocal of the square roots of the integers i.e. . 1 2 3 4 Q.14. A ball is dropped vertically from a height d above the ground. If hits the ground and bounces up vertically to a height d / 2. Neglecting subsequent motion and air resistance, its velocity varies with the height h above the ground as ? (a) (b) (c) (d) d h d h d space for rough work [Type text] BHIWANI CENTER PH 9896349071 h d h Q.15. A particle of mass m is moving in a circular path of constant radius r such that its centripetal acceleration ac is varying with time t as ac = k2 rt2, where k is a constant. The power delivered to the particle by the forces acting on it is ? mk 4 r 2t 5 (a) 2mk 2 r 2t (b) mk 2 r 2t (c) (d) zero 3 Q.16. A ball is projected with kinetic energy E at an angle of 450 to the horizontal. At the highest point during its flight, its kinetic energy will be ? (a) zero (b) E / 2 (c) E / 2 (d) E Q.17. Two masses M and m are attached to a vertical axis by weightless threads of combined length l. They are set in rotational motion in a horizontal plane about this axis with constant angular velocity . If the tensions in the threads are the same during motion, the distance of M from the axis is ? Ml ml M m M m (a) (b) (c) (d) l l M m M m M m Q.18. Let A iˆA cos ˆjA sin be any vector. Another, vector B which is normal to A is ? (a) iˆB cos ˆjB sin (b) iˆB sin ˆjB cos (c) iˆB sin ˆjB cos (d) iˆA cos ˆjA sin Q.19. forces 3 N, 4 N and 12 N act at a point in mutually perpendicular directions. The magnitude of the resultant force in newtons is ? (a) 7 (b) 12 (c) 13 (d) 19 Q.20. Two like parallel forces P and 3 P are 40 cm apart. If the direction of P is reversed, then their resultant shifts through a distance of ? (a) 30 cm (b) 40 cm (c) 50 cm (d) 60 cm Q.21. If at a height of 40 cm, the direction of motion of a projectile makes an angle / 4 with the horizontal then its initial velocity and angle of projection are respectively ? (a) 30 m,1 / 2 cos 1 4 / 5 (b) 3.0m,1 / 2 cos 1 1 / 2 (c) 5.0m,1 / 2 cos 1 8 / 25 (d) 6.0m,1 / 2 cos 1 1 / 4 Q.22. What is the value of linear velocity, if 3iˆ 4 ˆj kˆ and r 5iˆ 6 j 6kˆ ? (a) 6iˆ 2 ˆj 3kˆ (b) 6iˆ 2 ˆj 8kˆ (c) 4iˆ 13 ˆj 6kˆ space for rough work [Type text] BHIWANI CENTER PH 9896349071 (b) 18iˆ 13 ˆj 2kˆ Q.23. Which one of the following gives the angle made by the resultant velocity after t seconds for a projectile of initial velocity u. Projected at an angle with the horizontal ? gt gt gt t (a) tan 1 (b) tan 1 (c) tan 1 tan (d) tan 1 tan u cos u cos u cos u cos Q.24. The pulleys and strings shown in Fig. are smooth and of negligible mass. For the system to remain in equilibrium, the angle should be ? (a) 00 (b) 300 (c) 450 (d) 600 T T T m T 2m m Q.25. A projectile can have the same range ‘R’ for two angles of projection. If ‘t1’and ‘t2’ be the times of flights in the two cases, then the product of the two time of flights is proportional to ? (a) R (b) 1/R (c) 1/R2 (d) R 2 Q.26. Three blocks of masses m1, m2 and m3 are connected by massless string as shown in Fig. on a frictionless table . They are pulled with a force T3 = 40 N. If m1 = 10 kg, m2 = 6 kg and m3 = 4 kg, the tension T2 will be ? (a) 20 N T1 T2 T3 (b) 40 N m3 m1 m2 (c) 10 N (d) 32 N Q.27. An insect crawls up a hemispherical surface very slowly, Fig. The coefficient of friction between the insect and the surface is 1/3. If the line joining the centre of the hemispherical surface to the insect makes an angle with the vertical, the max. possible value of is given by ? (a) cot 3 (b) sec 3 (c) cosec 3 (d) None space for rough work [Type text] BHIWANI CENTER PH 9896349071 Q.28. A 1 kg particle strikes a wall with velocity 1 m/s at an angle of 300 with the wall and reflects at the same angle. If it remains in contact wall for 0.1 s, then the force is ? (a) 0 (b) 10 3 N (c) 30 3 N (d) 40 3 N Q.29. A block of mass 10 kg is placed on rough horizontal surface whose coefficient of friction is 0.5. If a horizontal force of 100 N is applied on it, then acceleration of block will be ? (a) 10 m/s2 (b) 5 m/s2 (c) 15 m/s2 (d) 0.5 m/s2 Q.30. A light string passing over a smooth light pulley connects two blocks of masses m1 and m2 (vertically). If the acceleration of the system is (g/8), then the ratio of masses is ? (a) 8 : 1 (b) 9 : 7 (c) 4 : 3 (d) 5 : 3 Q.31. When forces F1, F2, F3 are acting on a particle of mass m such that F2 and F3 are mutually perpendicular, then the particle remains stationary. If the force F1 is now removed, then the acceleration of the particle is ? (a) F1 / m (b) F2 F3 / m F1 (c) (F2 – F3) / m (d) F2 / m Q.32. A horizontal force of 10 N is necessary to just old a block stationary against a wall. The coefficient of friction between the block and wall is 0.2. The weight of the block is ? (a) 20 N 10N wall (b) 50 N (c) 100 N (d) 2 N Q.33. What is the maximum value of the force F such that the block shown in the arrangement does not move ? (a) 20 N (b) 10 N (c) 12 N (d) 15 N F 60 0 m 3kg 1 2 3 Q.34. A small block slides without friction down an inclined plane starting from rest. Let sn be the distance traveled from time t = n – 1 to t = n. Then sn / sn 1 is ? 2n 1 2n 1 2n 2n 1 (a) (b) (c) (d) 2n 1 2n 1 2n 1 2n space for rough work [Type text] BHIWANI CENTER PH 9896349071 Q.35. A block P of mass m is placed on a frictionless horizontal surface. Another block Q of same mass is kept on P and connected to the wall with the help of a spring of spring constant k as shown in Fig. s is coefficient of friction between P and Q. The blocks move together performing S.H.M. of amplitude A. The maximum value of friction between P and Q is ? (a) k A (b) k A / 2 (c) zero (d) s mg Q.36. A block of mass m is at rest under the action of force F against a wall shown in Fig. Which of the following statements is incorrect ? (a) f mg [ where f is the friction force ] (b) F = N [ where N is the normal force (c) F will not produce torque (d) N will not produce torque Q.37. Two masses M and M/2 are joined together by means of light inextensible string passed over a Frictionless pulley as shown in Fig. When the bigger mass is released, the small one will ascend with an acceleration of ? (a) g / 3 (b) 3g/2 (c) g (d) g/2 Q s k P SMOOTH as a a F M /2 M Q.38. A man of mass 60 kg is standing on a spring balance inside a lift. If the lift falls freely downwards, then the reading of the spring balance would be ? (a) zero (b) 60kg f (c) 60kg f (d) 60kg f Q.39. A block is kept on a frictionless inclined surface with angle of inclination ' '. The incline is given an acceleration ‘a’ to keep the block stationary. Then a is equal to ? (a) g tan (b) g (c) g cos ec (d) g / tan a Q.40. A block is lying on the table. What is the angle between the action of the book on the table and the reaction of the table on the book ? (a) 00 (b) 300 (c) 900 (d) 1800 space for rough work [Type text] BHIWANI CENTER PH 9896349071 MATHEMATICS Q.41. If f (x) is an odd function, then f ( x) f ( x) (a) is an even function 2 f ( x) f ( x) (c) is neither even nor odd 2 (b) f ( x) 1 is an odd function ( [ ] denotes integral part) (d) N.O.T Q.42. The domain an range of f ( x) sin 1 5 x 1 , (a) 1,1, (b) 3,4, 0, 2 2 2 1/ 3 1/ 2 respectively, are (c) 2,3, ,0 2 (d) N.O.T Q.43. Let f : 0, S be defined as f ( x) 2 x ( x 1) be onto, ten the set S, is (a) 2 1/ 4 , (b) 0,2 1/ 4 (c) 2 1/ 4 ,1 (d) N.O.T Q.44. The value of m for which the function f ( x) 1 mx(m 0) in the inverse of itself, is (a) -1 (b) -1, 0,. 1 (c) -1, 0 (d) -1, 1 mx, x has period, then (b) m 1,2 (c) m 4,5 be defined on 0,1 as Q.45. The function f ( x) min sin (a) m 4 Q.46. Let f (x) x Q f ( x) x, 1 x, x Q Then for all x 0,1, fof ( x) is (a) x (b) 1 x (c) 1 (d) N.O.T (d) N.O.T Q.47. Let P( x) ax 2 bx, q( x) lx 2 mx n. Consider the function f ( x) p( x) q( x). If f ( x) 0 only for x 1 and f (2) 1, then the value of f (3) is (a) 4 (b) 9 (c) 4/9 (d) cannot be found Q.48. If f ( x ) (a) one-one x , then f (x) is 1 x (b) many-one (c) one-many space for rough work [Type text] BHIWANI CENTER PH 9896349071 (d) many-many 1 1 3 18 x 2 is x 3 (b) 3 Q.49. The value of lim x (a) 1/9 (c) 9 a e1/ x 2, then the values of a and b, are Q.50. If lim x 0 1 be1 / x (a) a R, b R (b) a 2, b R Q.51. The value of lim x 1 (a) 0 Q.52. Te value of lim 11/ cos x 21/ cos x ........ n1/ cos x / 2 (a) n (c) a R, b 1 / 2 (d) N .O.T (c) 1/2 (d) N.O.T t 1 dt , is sin x 1 (b) -1/2 x 1 (d) 1/3 2 2 (b) 2 n(n 1) 2 x cos2 x , is (c) n! (d) N.O.T Q.53. Let f ( x) cos 2 x cot x . If f is continuous at x , then the value of f , is 4 4 4 (a) 2 (b) -2 (c) -1/2 (d) N.O.T Q.54. Let f ( x) bx 2 a, x 1 ax 2 bx 2, x 1. If f ' ( x) is continuous everywhere, then (a) a 1, b 3 (b) a 1, b 2 a 1, b 3 (c) a 2, b 3 (d) 1 a1/ x a 0, x 0 and f (0) 1. Then the function 1 a1 / x (a) is continuous and differentiable at x 0 (b) is continuous and not differentiable at x 0 (c) has a removable discontinuity at x 0 (d) N.O.T Q.55. Let f ( x) Q.56. If f ( x) min x, x 3 , then (a) f is discontinuous at 2 points only (c) f ' ( x) 1x 1,0 1, (b) f is not differentiable at 2 points only (d) f is odd space for rough work [Type text] BHIWANI CENTER PH 9896349071 tan x , where [ ] denotes integral part, then 2 1 x (a) f is continuous everywhere (b) f is continuous everywhere but non-differentiable at infinite number of points (c) f is continuous and differentiable everywhere (d) N.O.T Q.57. If f ( x) 2x , then Q.58. Let f ( x) sin 1 2 1 x (a) f ' ( x)dne for x 1 (b) f ' ( x)dne for x 1 (c) f ' ( x) is even (d) N.O.T x sin x cos x dny Q.59. If y n! sin n / 2 cosn / 2 , then value of at x 0, is n dx 2 3 (b) 1 (a) 0 (c) 2 1 (d) N.O.T (c) n (d) 0 Q.60. If f ( x ) 1 x , then the value of n (a) 2 n f " (0) f ( n ) (0) f (0) f ' (0) ....... is . 2! n! (b) 2 n 1 1 cos 2 , then 1 cos 2 3 3 (a) y ' y ' (b) y ' . y ' 4 4 4 4 Q.61. If y 1 3 (c) y ' and y ' 4 4 dne (d) N.O.T Q.62. The function f ( x) x 1 x is strictly decreasing in the interval . (a) (-1, 1) Q.63. The function f ( x) (a) a 0,1 (b) ,1 (c) (-1, 0) a tan x 1 is strictly decreasing x R , then tan x a (b) a 2,1 (c) a 1,1 space for rough work [Type text] BHIWANI CENTER PH 9896349071 (d) 0, (d) N.O.T Q.64. If f ( x) 1 cos x and g ( x) sin x, x 0, , then 2 (a) f ( x) g ( x) 0 (b) f ( x) g ( x) constant (d) f ( x) g ( x) is increasing in , 4 3 (c) 1 2 f ( x) g ( x) 0 Q.65. For any function f (x), if f ' (a) f " (a) ........ f ( n 1) (a) 0 but f ( n ) (a ) 0, then f (x) has a minima at x a if (a) n is even and f ( n ) (a) 0 (b) n is even and f ( n ) (a) 0 (c) n is odd an f ( n ) (a) 0 (d) n is odd an f ( n ) (a) 0 Q.66. The function f ( x) x1 tan x , x 0, has 2 (a) only one maxima (b) only one minima Q.67. the function f ( x) 2 sin x sin 2 x has (a) Maxima at x /3 3 3 (c) greatest value 2 (c) no extrema (d) N.O.T (b) neither maxima nor minima at x (d) least value = -2 2 3 1 then 3 (d) N.O.T Q.68. If the function f ( x) x 3 6 x 2 ax b defined on 1,3 satisfies the Rolle’s theorem for c (a) a 11, b 6 (b) a 11, b 6 (c) a 11, b R Q.69. Let f (x) and g (x) be differentiable for 0 x 1, such that f (0) 2, g (0) 0, f (1) 6 . Let there exist a real number c in 0,1 such that f ' (c) 2 g ' (c), then the value of g (1) must be (a) 1 (b) 2 (c) -2 (b) -1 Q.70. If a b c 0, then the quadratic equation 3ax2 2bx c 0 has (a) at least one root in (0, 1) (b) one root in (1, 2), other in (-1, 0) (c) both imaginary roots (d) N.O.T Q.71. If a function f (x) is continuous in the closed interval 2,4 and differentiable in the open interval (2, 4) and f (2) 5, f (4) 13, if at least one point c in (2, 4) then f ' (c) (a) 2 (b) 3 (c) 4 (d) 6 space for rough work [Type text] BHIWANI CENTER PH 9896349071 Q.72. In 0,1 Larganges mean value theorem is NOT applicable to 1 1 x sin x 2 x, , x0 2 (a) f ( x) (b) f ( x) x (c) f ( x) x x (d) f ( x) x 2 1 1 x 0 x , x 1, 2 2 Q.73. The equation of the tangent to the curve f ( x) 1 e 2 x where it cuts the line y 2 is (a) x 2 y 2 (b) 2 x y 2 (c) x 2 y 1 (d) x 2 y 2 0 Q.74. If y a ln x bx2 x has extreme values at x 1 and x 2 then P (a, b) is 1 (b) 2, 2 (a) (2, -1) Q.75. Number of critical points of f ( x) (a) 0 x2 1 x2 1 (c) 2, 2 (d) N.O.T (c) 2 (d) N.O.T is (b) 1 Q.76. If f ( x) t 1et 1t 2t 4dt then f (x) would assume the local minima at x 0 (a) x 4 (b) x 0 (c) x 1 Q.77. The number of points at which the function f ( x) (a) 1 (b) 2 1 is discontinuous is log x (c) 3 (d) N.O.T (d) 4 Q.78. If f ( x) 4 x x 2 3 when x 0,4 then (a) x 1 is a global maximum (c) x 2 is a local maximum (b) x 3 is a global maximum (d) N.O.T Q.79. Let f ( x y) f ( x) f ( y), for all x and y. If f (5) 2 and f ' (0) 3, then f ' (5) is equal to. (a) 5 (b) 6 (c) 0 (d) N.O.T Q.80. Let h( x) min x, x 2 , x R, then h(x) is (a) Differentiable everywhere (c) non-differentiable at two values of x (b) non-differentiable at three values of x (d) N.O.T space for rough work [Type text] BHIWANI CENTER PH 9896349071 CHEMISTRY Q.81. If the total energy of an electron in a hydrogen like atom in excited state is -3.4 eV, then the de Broglie wavelength of the electron is (a) 6.6 1010 (b) 3 1010 (c) 5109 (d) 9.3 1012 Q.82. The highest excited state that an unexcited hydrogen atom can reach when they are bombarded with 12.2 eV electron is (a) n = 1 (b) n = 2 (c) n = 3 (d) n = 4 Q.83. If 1017 J of light energy is needed by the interior of human eye to see an object. The photons of green light 550 nm needed to see the object are. (a) 27 (b) 28 (c) 29 (d) 30 Q.84. The wave number of the shortest wave length transition in Balmer series of atomic hydrogen will be (a) 4215 (b) 1437 (c) 3942 (d) 3647 Q.85. Which have the same number of S electrons as the d-electrons in Fe2+ . (a)Li (b) Na (c) N (d) P Q.86. Which orbital has two angular nodal planes . (a) s (b) p (c) d (d) f Q.87. Which ions has the maximum magnetic moment . (a) Mn3 (b) Cu 2 (c) Fe3 (d) V 3 Q.88. lonisation potential of hydrogen is 13.6 eV. Hydrogen atom in the ground state are excited by monochromatic light of energy 12.1 eV. The spectral lines emitted by hydrogen according to Bohr’s theory (a) One (b) Two (c) Three (d) Four Q.89. Predict the total spin in Ni 2 ion (a) 5 / 2 (b) 3 / 2 (c) 1 / 2 (d) 1 Q.90. With increasing principal quantum number, the energy difference between adjacent energy levels in atoms. (a) decreases (b) increases (c) Remains constant (d) decreases for low Z and increases for high Z space for rough work [Type text] BHIWANI CENTER PH 9896349071 Q.91. The number of electrons in sulphur atom having n 3? (a) 2 (b) 4 (c) 6 (d) 8 Q.92. Which atom contains an electron with quantum number n 3, 2, m 1, s 1 / 2 . (a) Ne (b) Co (c) Cl (d) K Q.93. The wavelength of a spectral line for an electronic transition is inversely related to. (a) Number of electrons undergoing transition (b) the nuclear charge of the atom (c) velocity an electron undergoing transition (d) the difference in the energy levels involved in the transition Q.94. If E1 , E2 and E3 represent respectively the kinetic energies of an electron, particle and a proton, each having same de Broglie’s wave length then (a) E1 E3 E2 (b) E2 E3 E1 (c) E1 E2 E3 (d) E1 E2 E3 Q.95. When the frequency of light incident on a metallic plate is doubled, the K.E of the emitted photoelectrons will be (a) Doubled (b) halved (c) increases but more than double of the previous K.E. (d) unchanged Q.96. Rutherford’s experiment, which established the nuclear model of the atom, used a beam of . (a) particles, which impinged on a metal foil and got absorbed (b) rays, which impinged on a metal foil and ejected electrons (c) helium atoms, which impinged on a metal foil and got scattered (d) helium nuclei, which impinged on a metal foil and got scattered Q.97. Which represents an impossible arrangement . n m s (a) 3 2 -2 1/2 (b) 4 0 0 1/2 (c) 3 2 -3 1/2 (d) 5 3 0 1/2 space for rough work [Type text] BHIWANI CENTER PH 9896349071 Q.98. which set of quantum number represents the electron of lowest energy. (a) n = 2, = 0, m = 0, S = +1/2 (b) n = 2, = 1, m = 0, S = +1/2 (c) n = 4, = 0, m = 0, S = +1/2 (d) n = 4, = 0, m = 0, S = -1/2 Q.99. An electron in a hydrogen atom in its ground state absorbs twice its ionisation energy what is the wavelength of the emitted electron. (a) 3.32 1010 m (b) 33.2 1010 m (c) 0.33 104 m (d) 0.33 106 m Q.100. The electron identified by quantum numbers n and (i) n = 4, = 1, (ii) n = 4, = 0, (iii) n = 3, = 0 (iv) n = 3, = 1, can be placed in order of increasing energy from lowest to highest. (a) (iii) < (iv) < (ii) < (i) (b) (ii) < (iv) < (i) < (ii) (c) (i) < (iii) < (ii) < (iv) (d) (iii) < (i) < (iv) < (ii) Q.101. Which molecule is T – shaped . (a) BeF2 (b) BCl3 (c) NH3 (d) ClF3 Q.102. The species which does not show paramagnetism is . (a) O2 (b) O2 (c) O22 (d) H 2 Q.103. CO2 has the same geometry as (a) HgCl2 (b) NO2 (c) SnCl2 (d) C2H2 Q.104. Which ion has the highest polarising power . (a) Mg 2 (b) Al3 (c) Ca 2 (d) Na Q.105. the correct order of decreasing polarisability of ion is . (a) CI Br I F (b) F I Br CI (c) I Br CI F (d) F CI Br I Q.106. Which of the following compounds is (are) non-polar (a) HCl (b) CH2Cl2 (c) CHCl3 Q.107. Which of the following cannot exist on the basic of MO theory. (a) H 2 (b) He 2 (c) He 2 Q.108. Highest covalent character is found in. (a) CaF2 (b) CaCl2 (c) CaBr2 space for rough work [Type text] BHIWANI CENTER PH 9896349071 (d) CCl4 (d) O2 (d) Cal2 Q.109. o-Nitrophenol is more volatile than p-nitro phenol because of (a) Resonance (b) presence of intermolecular hydrogen bonding in the o-isomer (c) absence of intramolecular hydrogen bonding in the o-isomer (d) N.O.T Q.110. Amongest LiCl, RbCl, BeCl2 and MgCl2 the compounds with greatest and least ionic character respectively are . (a) LiCl and RbCl (b) RbCl and BeCl2 (c) RbCl and MgCl2 (d) MgCl2 and BeCl2 Q.111. If Na+ ion is larger than Mg2+ ion and S2- ion is larger than Cl- ion, which of the following will be more covalent. (a) NaCl (b) Na2S (c) MgCl2 (d) MgS Q.112. Compound in which centre atom assumes sp3d hybridisation is . (a) SO3 (b) PCl5 (c) SO2 (d) PCl3 Q.113. Which of the following species have Intra molecular Hydrogen bonds. (a) Phenol (b) o-Nitrophenol (c) p-Nitrophenol (d) Nitroethane Q.114. Paramagnetism is not shown by (a) O2 (b) H 2 (d) O22 (c) O2 Q.115. The bonds present in N2O5 are (a) Only ionic (b) covalent and coordinate (c) only covalent (d) covalent and ionic Q.116. The number of unpaired electrons in Ni2+ is (a) 0 (b) 2 (c) 4 (d) 8 Q.117. The shape of lF5 is (a) square planar (c) trigonal bipyramidal (d) N.O.T Q.118. The shape of XeF4 is (a) Tetrahedral (b) square planar (c) pyramidal (d) trigonal planar Q.119. Which one has minimum dipole moment. (a) Butene - 1 (b) cis-Butene -2 (c) trans – Butene -2 (d) 2 - Methylpropene Q.120. The molecular which has zero dipole moment is (a) CH2Cl2 (b) BF3 (c) NF3 (d) ClO2 (b) square pyramidal space for rough work [Type text] BHIWANI CENTER PH 9896349071
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