1. A compound A has a molecular formula C₂Cl₃OH. It reduces Fehling solution and an oxidation gives a monocarboxylic acid B. It can be obtained by the action of chlorine on ethyl alcohol. A is

A. Chloral

B. Chloroform

C. Methyl chloride

D. Monochloroacetic acid

2. Which of the following will yield Benzaldimine hydrochloride?

A. benzonitrile and SnCl₂/HCl

B. nitrobenzene and SnCl₂/HCl

C. benzene and hydrazine

D. hydrazine and HCl

3. Isopropyl alcohol is heated on a water bath with the suspension of bleaching powder. Which of the following products will be formed?

A. Propene

B. Ethanol

C. Isopropyl chloride

D. Trichloromethane

4. Which of the following compounds is least basic?

A. C₆H₅NH₂

B. C₂H₅NH₂

C. CH₃NH₂

D. NH3

5. Iodine dissolves in KI solution due to the formation of

A. I⁺

B. I ^-

C. I₂^-

D. I₃^-

6. Hydrogen sulphide exhibits

A. acidic properties

B. basic properties

C. oxidising properties

D. none of the above

7. White Phosphorus reacts with caustic soda. The products are pH₃ and NaH₂PO₂. This reaction is an example of

A. oxidation

B. reduction

C. oxidation and reduction

D. neutralisation

8. Ammonia solution dissolves fairly in

A. Hg₂Cl₂

B. PbCl₂

C. Cu(OH)₂

D. AgI

9. Amongst the trihalides of nitrogen, which one is the least basic?

A. NF₃

B. NCl₃

C. NBr₃

D. NI₃

10. Among the various allotropes of carbon,

A. diamond is the hardest

B. graphite is the hardest

C. lamp black is the hardest

D. coke is the hardest

11. Bone charcoal is used for decolourising sugar because it

A. reduces colouring matter

B. oxidises colouring matter

C. absorbs colouring matter

D. none of the above

12. Tin (II) chloride is used as a

A. mordant in dying

B. catalyst

C. oxidising agent

D. none of the above

13. Inert pair effect is most prominent in

A. aluminium

B. boron

C. gallium

D. thallium

14. In the alumino thermite process, aluminium acts as

A. an oxidising agent

B. a flux

C. a reducing agent

D. a solder

15. The correct structure of mercurous ion is

A. Hg⁺

B. Hg²⁺

C. Hg₂⁺

D. Hg₂²⁺

16. Which one of the following is purely ionic?

A. Sodium chloride

B. Beryllium chloride

C. Lithium chloride

D. Carbon tetrachloride

17. A compound 'A' on heating gives a colourless gas. The residue is dissolved in water to obtain B. Excess CO₂ is passed through aqueous solution of B, when C is formed. C on gentle heating gives back A. The compound A is

A. NaHCO₃

B. Na₂CO₃

C. Ca(HCO₃)₂

D. CaCO₃

18. A solution of sodium sulphate in water is electrolysed using inert electrodes. The products at the cathode and anode are respectively

A. H₂, O₂

B. O₂, H₂

C. O₂, Na

D. O₂, SO₂

19. The metals occurring in the form of their compound in the earth's crust are called

A. matters

B. minerals

C. alloys

D. gangue

20. A commercial sample of hydrogen peroxide is labelled as 10 volume. Its percentage strength is nearly

A. 1%

B. 3%

C. 10%

D. 90%

21. 5.6 L of a gas at N.T.P weighs equal to 8 g. The vapour density of gas is

A. 40

B. 32

C. 16

D. 8

22. The number of spherical nodes in 3p orbital is

A. 2

B. 3

C. 1

D. none

23. Which of the following has largest size?

A. I^-

B. I⁺

C. I

D. Br ^-

24. Which of the following molecule has the highest bond angle around the central atom?

A. BCl₃

B. BF₃

C. The angle is same in all

D. BBr₃

25. The threshold frequency of metal is 4 x 10¹⁴ s ^-1. The minimum energy which photons must possess to produce photoelectric effect with the metal is (h = 6.6 x 10 ^-34 Js)

A. 2.64 x 10 ^-19 J

B. 3.4 x 10 ^-19 J

C. 1.4 x 10 ^-48 J

D. 3.06 x 10 ^-12 J

26. The solubility of AgCl will be minimum in

A. 0.01 M NaCl

B. 0.01 M CaCl₂

C. pure water

D. 0.01 M AgNO₃

27. The enthalpy of formation (D H_f) of a compound from its elements is

A. D H_f = infinite

B. D H_f may be < 0 or > 0

C. D H_f < 0

D. D H_f > 0

28. The internal energy of one mole of ideal gas is

A. 1/2 RT

B. 3/2 KT

C. 3/2 RT

D. 1/2 KT

29. In lattice of N atoms, the number of tetrahedral sites is

A. N

B. N/4

C. N/2

D. 2N

30. The quantity of electricity required to liberate 0.01 g equivalent of an element at the electrode is

A. 96500 C

B. 965 C

C. 96.5 C

D. 9650 C

31. Which is correct in the case of Vander Wall's adsorption?

A. Low temp., low pressure

B. High temp., high pressure

C. High temp., low pressure

D. Low temp., high pressure

32. Half-life of radioactive substance is 60 min. During 3 hrs, the fraction of total no. of atoms that have decayed would be

A. 25%

B. 8.5%

C. 12.5%

D. 87.5%

33. Oxidation number of carbon in carbon suboxide is

A. + 4/3

B. - 4/3

C. + 2/3

D. + 4

34. The Vant Hoff's factor (i) for a dilute solution of potassium aluminium sulphite is

A. 5.0

B. 3.0

C. 4.0

D. unpredictable

35. Which of the following has the highest first ionization energy?

A. Be

B. Mg

C. Ba

D. Ca

36. The bonds present in Borazole are

A. 6s , 9p

B. 9s , 6p

C. 12s , 3p

D. 15s only

37. Which of the following does not show allotropy?

A. Antimony

B. Arsenic

C. Phosphorus

D. Nitrogen

38. Among the following pairs, one which does contain allotropes is

A. red phosphorus and yellow phosphorus

B. diamond and graphite

C. hydrogen and deuterium

D. oxygen and ozone

39. At ordinary temperature and pressure; chlorine is a gas, bromine is a liquid, and iodine is a solid because

A. intermolecular forces are the weakest in chlorine and strongest in iodine

B. among them chlorine is the lightest and iodine is the heaviest

C. chlorine has lowest specific heat

D. chlorine molecule is least stable

40. The absorption of hydrogen by metals is called

A. occlusion

B. adsorption

C. dehydrogenation

D. hydrogenation

41. Phosphine gas is

A. basic

B. neutral

C. an oxidizing agent

D. acidic

42. Hydrazine reduces Fehling solution to

A. Cu + O₂

B. Cu(OH)₂

C. Cu₂O

D. CuO

43. In metallurgical processes, the flux used for removing acidic impurities is

A. sodium carbonate

B. limestone

C. sodium chloride

D. silica

44. Pure anhydrous magnesium chloride can be prepared from hydrated salt by

A. heating the hydrate with coke

B. heating the hydrate with Mg ribbon

C. heating the hydrate to red heat in the atmosphere of HCl gas

D. melting the hydrate

45. Which of the following is fool's gold?

A. Cu(OH)₂CuCO₃

B. CuFeS₂

C. Cu₂S

D. Cu(OH)₂

46. The principal products obtained on heating iodine with conc. caustic soda solution are

A. NaIO₃ + NaI

B. NaIO₄ + NaI

C. NaOI + NaI

D. NaOI + NaIO₃

47. Which of the following transition elements exhibit the oxidation state of + 8?

A. Ru

B. Tc

C. Au

D. Cd

48. The IUPAC name of Ni(CO)₄ is

A. Tetra carbonyl nickelate (II)

B. Tetra carbonyl nickelate (O)

C. Tetra carbonyl nickel (O)

D. Tetra carbonyl nickel (II)

49. Coordination number of Titanium in Ti(NO₃)₄ is

A. 6

B. 8

C. 4

D. 2

50. Which of the following oxides can't be reduced by hydrogen?

A. Hot Al₂O₃

B. Hot SnO₂

C. Hot Fe₂O₃

D. Hot CuO

51. Glucose can't be classified as

A. an oligosaccharide

B. a carobohydrate

C. a hexose

D. an aldose

52. Which one is a broad spectrum antibiotic?

A. Antiseptic

B. Xylocame

C. Plasmoquin

D. Chloramphenicol

53. Besides lime, the other major constituent of Portland cement is

A. carbon

B. magnesia

C. silica

D. alumina

54. If empirical formula of an organic compound is CH₂O and its 6.02 x 10²³ molecules weigh 60 g, then it can be

A. HCOOCH₃

B. HCOOH

C. C₂H₅OH

D. CH₃OH

55. What type of isomerism is shown by benzaldoxime?

A. Geometrical

B. Metamerism

C. Functional

D. Optical

56. During bromination of benzene in the presence of FeBr₃, the species that attacks the ring to initiate the process is

A. Br ^-

B. Br₂ molecule

C. FeBr₄ ^-

D. Br ⁺

57. In which of the following molecule, p-electron of halogen is delocalised over the entire structure?

A. Benzal dichloride

B. Picryl chloride

C. Alkyl chloride

D. Benzyl chloride

58. MeMgX reacts with D₂O to produce

A. CH₃OD

B. CH₃OMgX

C. CH₃D

D. CD₄

59. When 2-bromo propane is treated with potassium tertiary butoxide, which products are formed?

A. Propene and ether

B. Alcohol and ether

C. Propene only

D. Ether only

60. In vulcanization of rubber,

A. sulphur cross-links are introduced

B. sulphur forms a very thin protective layer over rubber

C. sulphur reacts to form a new compound

D. all the above statements are correct

61. 1.12 mL of a gas is produced at S.T.P. by the action of 4.12 mg of alcohol ROH with methyl magnesium iodide. The molecular mass of alcohol is

A. 156.0

B. 82.4

C. 41.2

D. 16.0

62. The anion O^{2 -} is isoelectronic with

A. F ^-

B. N^{2 -}

C. F⁺

D. N³⁺

63. How many unpaired electrons are there in Ni²⁺ (g)?

A. 4

B. 8

C. 2

D. 0

64. Among LiCl, BeCl₂, BeCl₃, and CCl₄; the covalent bond character varies as

A. LiCl > BeCl₂ >BeCl₃ > CCl₄

B. LiCl < BeCl₂ < BeCl₃ < CCl₄

C. LiCl >BeCl₂ < BeCl₃ < CCl₄

D. LiCl < BeCl₂ > BeCl₃ > CCl₄

65. The heat of combustion of CH₄ (g), C (s), and H₂ (g) at 25^oC are –212.4 kcal, -94.0 kcal, and –69.4 kcal respectively; the heat of formation of CH₄ will be

A. + 212.8 kcal

B. – 375.2 kcal

C. – 18.4 kcal

D. + 54.4 kcal

66. Enthalpy of combustion of C₆H₆ (l) is – 3264.4 kJ mol ^-1. The heat produced by burning 3.9 g of benzene is

A. – 326.4 kJ

B. – 3.264 kJ

C. – 163.23 kJ

D. – 32.64 kJ

67. The K_sp of CuS, Ag₂S, and HgS are 10 ^-31, 10 ^-44, and 10 ^-54 respectively. The solubility of these sulphides is in the order

A. CuS > Ag₂S > HgS

B. HgS > Ag₂S > CuS

C. Ag₂S > HgS > CuS

D. Ag₂S > CuS > HgS

68. The solubility of silver chloride in 0.2 M NaCl is (Given K_sp AgCl = 1.8 x 10 ^-10)

A. 1.8 x 10 ^–11 M

B. 7.2 x 10 ^–10 M

C. 9 x 10 ^–10 M

D. 3.6 x 10 ^–10 M

69. An alloy of copper, silver, and gold is found to have copper constituting the ccp lattice. If silver atoms occupy the edge centres and gold is present at body centre, then the alloy has a formula

A. Cu₄ Ag₃ Au

B. Cu₄ Ag₂ Au

C. Cu AgAu

D. Cu₄ Ag₄ Au

70. The movement of solvent molecules through a semipermeable membrane is called

A. cataphoresis

B. electrophoresis

C. osmosis

D. electrolysis

71. The vapour pressure of aq. sol. of glucose is 750mm of light of Hg at 373 K. Mole fraction of solute will be

A. 0.0087

B. 0.013

C. 0.087

D. 0.87

72. The root mean square speed of gas molecule at 25 K and 1.5 x 10⁵ Nm ^-2 is 100.5 ms ^-1. If the temperature is raised to 100 K and the pressure to 6.0 x 10⁵ Nm ^-2, the root mean square speed becomes

A. 1608.0 ms ^–1

B. 402.0 ms ^–1

C. 201.0 ms ^–1

D. 100.5 ms ^–1

73. The electrochemical cell stops working after sometime because

A. electrode potentials of both the electrodes become equal

B. one of the electrode is eaten away

C. the reaction starts proceeding in opposite direction

D. electrode potential of both the electrodes become zero

74. The coagulation of 100 mL of colloidal solution of gold is completely prevented by addition of 0.25 g of a substance 'X' to it, before adding 1 ml of 10% of NaCl solution. The gold number of X is

A. 25

B. 2.5

C. 0.25

D. 250

75. Which of the following can be used as an electrode?

A. Wooden rod

B. Nail

C. Glass rod

D. None of the above

76. The enthalpy change (D H) in a simple one step reaction is > 0, so the activation energy (E_a) of reaction is

A. never less than D H

B. equal to D H

C. never greater than D H

D. equal to zero

77. Which of the following alkali metal halides has the lowest lattice energy?

A. CsI

B. KBr

C. NaCl

D. LiF

78. Which of the following is not a Lewis acid?

A. FeCl₃

B. AlCl₃

C. AlCl₃ 6H₂O

D. SnCl₄

79. The percentage of urea is about

A. 70

B. 47

C. 63

D. 28

80. Which of the following is true peroxide?

A. CO₂

B. BaO₂

C. PbO₂

D. MnO₂

81. Which of the following statements is false about bleaching powder?

A. Bleaching powder is priced according to its crystal size

B. Good quality bleaching powder contains (35 - 38)% available chlorine

C. When stored for longer periods, it changes to calcium chlorate and calcium chloride (Auto - oxidation)

D. Amount of Cl₂ liberated when it is treated with excess of dilute acid known as available chlorine

82. Keen's cement is

A. Plaster of paris + Alum

B. Fe₃C

C. Cement – concrete

D. Gypsum + slaked lime

83. Which of the following represents Caro's acid?

A. Peroxydisulphuric acid

B. Dithionic acid

C. Thiosulphuric acid

D. Peroxymonosulphuric acid

84. Which glass has the highest percentage of lead?

A. Flint glass

B. Pyrex glass

C. Jena glass

D. Soda glass

85. Oxygen and hydrogen react to form water. Who made this discovery?

A. Rutherford

B. Dumas

C. Cavendish

D. Davy

86. Most of the metals which occur in native state in nature

A. have low density

B. are not reactive

C. are very reactive

D. don't form ionic compounds

87. Crude common salt is hygroscopic because of impurities of

A. Ca (HCO₃)₂ and Mg (HCO₃)₂

B. CaBr₂ and MgBr₂

C. CaCl₂ and MgCl₂

D. CaSO₄ and MgSO₄

88. From which of the following solutions, copper displaces the metal?

A. ZnSO₄

B. FeSO₄

C. AgNO₃

D. All of the above

89. Pink salt is

A. SnCl₄.5H₂O

B. Na₂SO₄.10H₂O

C. (NH₄)₂SnCl₆

D. None

90. Which of the following compounds is diamagnetic?

A. NiCl₄^-2

B. CuSO₄

C. CrCl₃

D. ZnCl₂

91. Which of the following is used in making smoke screens?

A. Divanadium tetraoxide

B. Chromyl chloride

C. Ziroconium oxide

D. Titanium chloride

92. When SO₂ gas is passed through Cupric Chloride solution,

A. it becomes colourless and white precipitate is formed

B. it becomes green

C. blue precipitate is formed

D. no change takes place

93. Glyptal is a polymer of

A. carprolactum

B. ethylene glycol and adipic acid

C. ethylene glycol and phthalic acid

D. ethylene glycol

94. Which of the following molecules is capable of forming zwitter ion?

A. CCl₃NO₂

B. CH₃CN₂NH₂

C. CH₃COOH

D. NH₂CH₂COOH

95. An antibiotic contains nitro group attached to aromatic nucleus in its structure. It is

A. Streptomycin

B. Tetracycline

C. Chloroamphenical

D. Penicillin

96. Which of the following is Adam's catalyst?

A. Fe/Mo

B. V₅O₅

C. Pt/PtO

D. Pd-BaSO₄

97. The structures CH₃CCH₃ and CH₂ = C(OH)CH₃ represent

A. position isomerism

B. keto-enol isomerism

C. metamerism

D. functional isomerism

98. The reaction of toluene with Cl₂ in the presence of FeCl₃ gives predominantly

A. Benzyl chloride

B. o and p-chlorotoluene

C. Benzoyl chloride

D. M-chlorotoluene

99. A gas is found to have the formula (CO_n). If the vapour density is 56, the value of n will be

A. 5

B. 3

C. 7

D. 4

100. The bond energy C - H in methane is

A. 100 kcal/bond

B. 80 kcal/bond

C. 50 kcal/bond

D. 30 kcal/bond