pg-qp – 24 · pg-qp – 24 a*-4- part – a question no. 1 – 10: fill in the blanks with the...

21
PG-QP – 24 *PGQP24* A* -4- PART – A Question No. 1 – 10 : Fill in the blanks with the most grammatically correct and meaningful option from those provided : 1. This book is __________ than any I have read. A) much interesting B) most interesting C) more interesting D) more interester 2. One must put in __________ best to achieve success. A) his B) one’s C) our D) their 3. I think they __________ not know me. A) are B) does C) didn’t D) do 4. She is too weak __________ A) for running B) to run C) that she runs D) for run 5. Students should always be __________ towards their teachers. A) greatful B) respectful C) greetful D) approval 6. He said that he did not remember __________ me ever before. A) seeing B) seen C) having seen D) having saw 7. We were asked to write our answers __________ ink. A) with B) in C) from D) by 8. This matter is entirely between you and __________ A) I B) we C) us D) me 9. __________ of any kind is harmful. A) Habitual B) Addiction C) Tradition D) Custom

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Page 1: PG-QP – 24 · PG-QP – 24 A*-4- PART – A Question No. 1 – 10: Fill in the blanks with the most grammatically correct and meaningful option from those provided : 1. This book

PG-QP – 24 ��������

A* -4-

PART – A

Question No. 1 – 10 : Fill in the blanks with the most grammatically correct and meaningfuloption from those provided :

1. This book is __________ than any I have read.

A) much interesting B) most interesting

C) more interesting D) more interester

2. One must put in __________ best to achieve success.

A) his B) one’s C) our D) their

3. I think they __________ not know me.

A) are B) does C) didn’t D) do

4. She is too weak __________

A) for running B) to run

C) that she runs D) for run

5. Students should always be __________ towards their teachers.

A) greatful B) respectful

C) greetful D) approval

6. He said that he did not remember __________ me ever before.

A) seeing B) seen

C) having seen D) having saw

7. We were asked to write our answers __________ ink.

A) with B) in C) from D) by

8. This matter is entirely between you and __________

A) I B) we C) us D) me

9. __________ of any kind is harmful.

A) Habitual B) Addiction

C) Tradition D) Custom

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10. The notice said that the meeting __________ at 9:30 am.

A) beginning B) being begun

C) would begin D) would be begin

11. Choose the appropriate answer for the following:

Elegance : Vulgarity : : Graceful : ?

A) Awkward B) Comely

C) Asperity D) Dirty

12. Which number will come in the blank space ?

1, 6, 13, 22, 33, ____________

A) 44 B) 45

C) 46 D) 47

13. When Anuj saw Manish, he recalled, “He is the son of the father of my daughter.” Whois Manish ?

A) Brother-in-law B) Brother

C) Cousin D) Uncle

14. A father tells his son, “I was of your present age when you were born.” If the father is 36now, how old was the boy 5 years back ?

A) 13 B) 15 C) 17 D) 20

15. The maximum number of squares in the following figure is :

A) 14 B) 13 C) 10 D) 9

16. Select the most suitable synonym for BENIGNITY

A) boldness B) benevolence

C) obscurity D) passivity

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17. Select the most suitable antonym for DUCTILE

A) opaque B) tensile

C) coarse D) brittle

18. Identify the meaning of idiom “Cut no ice”

A) unable to perform B) feel uncomfortable

C) come to nothing D) have no influence or effect

19. Select the pair which shows the same relationship as the capitalized pair of words :HORSE : RIDING

A) Car : driving B) Cycle : peddling

C) Boat : voyaging D) Skate : dancing

20. Choose the correct option :

5004/ 139 - 6 = ?

A) 24 B) 30 C) 36 D) 42

21. The average of first 50 natural numbers is

A) 12.25 B) 21.25 C) 25 D) 25.5

22. What is 15 percent of Rs. 34 ?

A) Rs. 3.40 B) Rs. 3.75 C) Rs. 4.50 D) Rs. 5.10

23. Sam purchased 20 dozens of toys at the rate of Rs. 375 per dozen. He sold each one ofthem at the rate of Rs. 33. What was his percentage profit ?

A) 3.5 B) 4.5 C) 5.6 D) 6.5

24. If 2A = 3B = 4C, then A : B : C is

A) 2 : 3 : 4 B) 4 : 3 : 2

C) 6 : 4 : 3 D) 20 : 15 : 2

25. In which country the new parliament building has been built by India ?

A) Bhutan B) Afghanistan

C) Nepal D) Maldives

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PART – B

26. Which one of the following complexes of Ti3+ exhibits the shortest wavelengthabsorption in the visible spectrum ?

A) [Ti(H2O)6]3+ B) [TiF6]3–

C) [Ti(en)3]3+ D) [TiCl6]3–

27. Which substance would you expect to have the greatest lattice energy ?

A) AgCl B) CrN

C) NaF D) CuO

28. Which one of the following bonds is most polar ?

A) S-Cl B) S-Br

C) Se-Br D) Se-Cl

29. What is Wijs reagent ?

A) ICl B) ICl3

C) BrCl D) I3

30. The geometry and bond angle of the nitrite ion (N −2O ) are best described as

A) pyramidal, 107° B) tetrahedral, 109°

C) bent, 115° D) trigonal planar, 120°

31. Hybridization and structure of XeO3 is

A) sp3d, trigonal bipyramidal B) sp3, tetrahedral

C) sp3, trigonal pyramidal D) sp3d2, octahedral

32. An atom of which of the following elements has the lowest second ionization energy?

A) Li B) F

C) O D) Mg

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33. Which of the following complex ion is tetrahedral?

A) [ZnCl4]−2 B) [PdCl4]

−2

C) [Ni(CN)4]−2 D) [AuCl4]

−2

34. Vitamin B12, an essential nutrient for humans, contains which of the following elements ?

A) zinc B) chromium

C) cobalt D) copper

35. Which of the following statements about borazine is not true ?

A) Borazine is isostructural with benzene

B) Borazine is synthesized from diborane and ammonia

C) Borazine is a colorless liquid with an aromatic smell

D) Borazine is unreactive towards hydrochloric acid

36. Four species are listed below

(I) HNO2 (II) H2N2O2

(III) N3H (IV) HNO3

Which of the following is the correct sequence of their acid strength ?

A) IV < II < III < I B) III < II < I < IV

C) I < III < II < IV D) III < I < IV < II

37. Which compound is expected to be most acidic ?

A) XeOF4 B) XeF4

C) XeF6 D) XeF2

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38. Which of the following complexes is/are paramagnetic in nature ?

I. Na3[FeF6] II. [Co(NH3)6]Cl3

III. Cs2[CoCl4] IV. Ni(CO)4

A) Only I B) II and III

C) I and III D) II and IV

39. How many O-H bonds per molecule are present in H3PO3 ?

A) one B) two

C) three D) none

40. Which of the following statements concerning lanthanide elements is not true ?

A) All of the lanthanides form sesquioxides, Ln2O3

B) They show common oxidation state 3+

C) These are not used for redox chemistry

D) Lanthanide ions are soft Lewis acids

41. Which of the following compounds is most likely to undergo oxidative addition of H2 ?

A) Fe(CO)5 B) Ir(CO)Cl(PPh3)2

C) MeMn(CO)5 D) HCo(CO)4

42. Which of the following metal carbonyl compounds has a lower carbonyl stretchingfrequency ( � CO) ?

A) Cr(CO)6 B) [Mn(CO)6]+

C) [V(CO)6]– D) [Fe(CO)6]2+

43. Which of the following complexes exhibit geometrical isomerism ?

I. [Co(en)3]3+ II. [Ni(NH3)2(en)]2+

III. [Ni(CO)2Cl2] IV. Ni(CO)4

A) I and II B) II and III C) Only III D) I and IV

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44. Which of the following complexes has the highest ligand field stabilization energy

(LFSE) ?

A) [Mn(H2O)6]2+ B) [Fe(H2O)6]2+

C) [Cr(NH3)6]3+ D) [Fe(CN)6]3–

45. Which of the following is an arachno-borane ?

A) B4H10 B) B5H9

C) [B6H6]2– D) B6H10

46. According to the International Panel on climate change report, which gas or gas source

has been responsible for the biggest increase in anthropogenic greenhouse gas emissions ?

A) N2O B) Freons

C) CH4 D) CO2-fossil fuels

47. The number of terminal and bridging carbonyls present in Fe2(CO)9 at low temperature

are respectively

A) 6 and 3 B) 8 and 1

C) 4 and 5 D) 7 and 2

48. The ground state term symbol for Co2+ is

A) 4D B) 4F

C) 3F D) 2F

49. Which of the following is an example of inverse spinel ?

A) Mn3O4 B) Cr3O4

C) Fe3O4 D) MgAl2O4

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50. Which one of the following is a free radical ?

A) CS B) CN –

C) NO D) CO

51. The correct order of basicity is represented by

A) Pyridine > Pyrrole > Aniline

B) Pyrrole > Aniline > Pyridine

C) Aniline > Pyrrole > Pyridine

D) Pyridine > Aniline > Pyrrole

52. The major product in the transformation shown below is

A) B)

C) D)

53. The major product in the transformation shown below is

A) B)

C) D)

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54. The pink colour of phenolphthalein in alkaline medium is due to the formation of

A) B)

C) D)

55. The most stable conformation of (1R,3R)-1-isopropyl-3-methylcyclohexane isrepresented by

A) B)

C) D)

56. The configuration of the chiral centres in the two compounds P and Q shown below is

A) ‘R’ in P and ‘S’ in Q

B) ‘R’ in both P and Q

C) ‘S’ in P and ‘R’ in Q

D) ‘S’ in both P and Q

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57. Chemically, Vitamin C is

A) Arachidonic acid B) Citric acid

C) Lactic acid D) Ascorbic acid

58. The appearance of strong signals at 1700 cm–1 & 3400 cm–1 in an IR spectrum indicates

respectively the presence of

A) Alcohol and Carbonyl groups

B) Carbonyl and Alcohol groups

C) Carbonyl and Ether groups

D) Alcohol and Amine groups

59. Birch reduction of anisole delivers the hydrogens to its

A) ortho- and para- positions

B) ortho- and meta- positions

C) ipso- and para- positions

D) ipso- and meta- positions

60. The reaction shown below is known as

A) Aldol condensation

B) Perkin condensation

C) Claisen condensation

D) Benzoin condensation

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61. The compounds P and Q shown below are

A) Enantiomers B) Identical

C) Rotamers D) Diastereomers

62. The reactant and side product respectively in the Cumene process for the synthesis ofphenol from benzene are

A) Propylene and acetone

B) Isopropyl alcohol and acetone

C) Propylene and acetaldehyde

D) Isopropyl alcohol and acetaldehyde

63. Which of the following is NOT a nonsteroidal anti-inflammatory (NSAID) drug ?

A) Atenolol B) Diclofenac

C) Aspirin D) Ibuprofen

64. The major product in the transformation shown below is

A) B)

C) D)

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65. Which one of the following structures correctly represents a DNA template ?

A) B)

C) D)

66. The reaction shown below is known as

A) Benzil-Benzilic acid rearrangement

B) Acyloin condensation

C) Canizzaro reaction

D) Baeyer-Villiger oxidation

67. The major product in the transformation shown below is

A) B)

C) D)

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68. The Hell-Volhard-Zelinsky reaction involves

A) � -Haloester to � -hydroxyester conversion

B) � -Halogenation of a carboxylic acid

C) Decarboxylation of a � -keto acid

D) Generation of a carbon-carbon double bond

69. For the transformation shown below, the correct combination of reagent and productrespectively is represented by

A) B)

C) D)

70. The major product in the transformation shown below is

A) B)

C) D)

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71. SN2 reactions are correctly defined by the combination of terms

A) Intermediate and Retention of configuration

B) Intermediate and Inversion of configuration

C) Transition state and Retention of configuration

D) Transition state and Inversion of configuration

72. In the reaction shown below, P and Q are correctly represented by the set

A)

B)

C)

D)

73. Which of the following sets gives rise to the same osazone ?

A) Glucose, Mannose and Fructose

B) Glucose, Mannose and Galactose

C) Galactose, Mannose and Fructose

D) Galactose, Glucose and Fructose

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74. The major product in the transformation shown below is

A) 2,3-dimethylbutan-2-ol

B) 3,3-dimethylbutan-2-ol

C) 2,3-dimethyl-1-butene

D) 2,3-dimethyl-2-butene

75. Which of the following gives a negative Iodoform test ?

A) Acetaldehyde B) 3-Pentanone

C) 2-Butanone D) Isopropyl alcohol

76. The radius ratio 2

1

R

R for structure 1 and structure 2 formed by packing of uniform

spheres is 2

3 . The unit cell edge length in both the structures is a. If structure 1 is

body centered cubic, the structure 2 is

A) simple cubic

B) face centered cubic

C) cubic closed packed

D) hexagonally closed packed

77. The Henry’s Law constants (KH) for a few gases are given below :

KH(H2) = 69.2 kbar; KH(N2) = 75.4 kbar; KH(O2) = 34.9 kbar; KH(Ar) = 40.3 kbar at

T = 293 K.

The mole fraction of a certain gas X in aqueous solution is 1.3 × 10–5 . The gas X exertsa partial pressure of 0.98 bar at T = 293 K. The gas X is

A) H2 B) N2 C) O2 D) Ar

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78. Consider the following reactions

Reaction I : A → Products

Reaction II : B → Products

The rates of reaction I and reaction II in gas phase were determined separately. For thereaction I, the half life doubled by doubling the initial pressure of A. However, for thereaction II, the half life became half upon doubling the initial pressure of B. Choose thecorrect statement regarding the orders of reaction A and reaction B.

A) Reaction I is first order, and reaction II is zero order

B) Reaction I is first order, and reaction II is also first order

C) Reaction I is zero order, and reaction II is first order

D) Reaction I is zero order, and reaction II is of second order

79. A bottle containing 200 cm3 of 50 mM aqueous sodium chloride was purchased from achemical company. The amount of sodium chloride in this bottle is (Molecular weightof NaCl = 58.4 g mol–1)

A) 5.84 g B) 58.4 g

C) 0.584 g D) 1.178 g

80. The rate constant of the gas phase reaction K + Br2 → KBr + Br follows the Arrhenius

form RTE

Ae k α

= . The experimental value of A is 1.0×1012 L mol–1 s–1, and the value of

A calculated from collision theory is 2.1 × 1011 L mol–1 s–1. The value of steric factorfor this reaction is

A) 0.21 B) 12.1×1011

C) 4.8 D) 2.0

81. When the pressure is increased from 0.5 bar to 1.5 bar, the melting point of ice

A) increases B) remains same

C) decreases D) reaches critical point

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82. An aqueous acetic acid solution at pH = 3 has a molar conductivity of mΛ = 4.0 S cm2

mol–1. The limiting molar conductivity of acetic acid in aqueous solution is 400 S cm2

mol–1. The concentration of acetic acid in this aqueous solution is

A) 0.01 M B) 0.1 M

C) 0.001 M D) 1.0 M

83. For the reaction N2(g) + 3H2(g) → 2NH3(g), the enthalpy of reaction is 92� � −=°

kJ mol–1. The correct option among the following relevant to this reaction is

A) The equilibrium constant of the reaction will increase with increase in

temperature

B) The equilibrium constant of the reaction will increase with increase in pressure at

constant temperature

C) The equilibrium constant of the reaction will be unchanged with increase in

pressure at constant temperature

D) The equilibrium constant of the reaction will increase when a catalyst is used at a

given temperature and pressure

84. For a particle in one-dimensional box, when the length of the box is doubled, the energy

of the first excited state changes by a factor of

A) 4 B) 2 C)4

1D) 3

85. The vapor pressure of 0.5 M aqueous KNO3 solution at 100°C is 750 Torr. The activity

of water in the solution at this temperature is [1 atm = 760 Torr]

A) 0.987 B) 1.0 C) 55.5 D) 0.5

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86. In the phase diagram of water, the number of degrees of freedom (variance) on

liquid-vapor equilibrium curve is

A) 2 B) 1

C) 0 D) 3

87. 2.0 mol of H2(g) are mixed with 2.0 mol of N2(g) both at 298 K. Assuming perfect

behavior, the change in entropy of the gases upon mixing is

A) – 2R ln 0.5 B) 0

C) – 4R ln 0.5 D) 2R ln 2

88. The number of fundamental vibrations in CO2 are

A) three

B) four with bending vibration being doubly degenerate

C) four with antisymmetric stretch being doubly degenerate

D) three with symmetric stretch being double degenerate

89. Units of surface tension and viscosity of a liquid are respectively

A) kg m–1 s–1, N m–1 B) N m–1, kg m–1 s–1

C) kg m2 s–1, N m–1 D) kg m2 s –2, N m –2

90. The crystal plane for which inter planar spacing dhkl = a/√12 is

A) 110 B) 111

C) 221 D) 222

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91. Which of the following thermodynamics quantities have been called “the arrow of time”

A) Enthalpy

B) Entropy

C) Gibbs free energy

D) Helmholtz free energy

92. From Maxwell’s relation it can be said that T

⎟⎠⎞

⎜⎝⎛

∂∂V

S is equal to

A) P/T B) T/P

C) PT D) R/V

93. The average translational kinetic energy of Oxygen molecule at 300 K is

A) 6.21×10–21 J

B) 6.21×10–23 J

C) 4.14×10–23 J

D) 4.14×10–21 J

94. The vapour of a pure substance, when cooled under a pressure less than its triple-pointpressure

A) liquefies

B) liquefies first and then solidifies

C) remains unchanged

D) solidifies directly

95. If the activation energy is zero then the rate constant, k, is equal to

A) infinity B) zero

C) one D) frequency factor

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96. Zero-point energy of simple harmonic oscillator is

A) hν B) zero

C) hν /2 D) hν /4

97. Spacing between rotational spectral lines is

A) B B) 4B

C) 6B D) 2B

98. The normalization constant for the wave function of a particle in one-dimensional box

of length L is

A) √(L/2) B) √(2/L)

C) √(1/L) D) √L

99. The value of the commutator [px, x]

A) 2 i � B) –2 i �

C) 2 i � x D) – i �

100. The probability that a particle in one-dimensional box of length L is found to be (between

0 and L/2 )

A) 1/2 B) 1/3

C) 1/4 D) 1

________________

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SPACE FOR ROUGH WORK