Quiznetik

Pharmaceutical Organic Chemistry 1 | Set 2

1. In the dichlorination reaction of propane, mixture of products are obtained. How many isomers, the mixture contains…………

Correct : C. 4

2. Which of the following cycloalkane gives open chain compound, when reacts with bromine………..

Correct : A. Cyclopropane

3. Grignard reagent is not prepared in aqueous medium but prepared; in ether medium because the reagent…………..

Correct : A. Reacts with water

4. A sample of petrol is a mixture of 30% n-heptane and 70% iso-octane. The sample has octane number…………

Correct : B. 70

5. Photochemical chlorination of alkane is initiated by a process of……………

Correct : D. Homolysis

6. A petroleum fraction having boiling range 70-200°C and containing 6-10 carbon atoms per molecule is called………..

Correct : C. Gasoline

7. Pick out the alkane which differs from the other members of the group.

Correct : D. 2,2-dimethyl butane

8. 2-Methylbutane on reacting with bromine in the presence of sunlight gives mainly……..

Correct : B. 2-bromo-2-methylbutane

9. Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is…………..

Correct : B. 2, 3-dimethylbutane

10. Which group is present on alcohol.

Correct : A. OH

11. Which suffix attached in alcohol.

Correct : B. Ol

12. Butane-2-ol is …….

Correct : B. Secondary alcohol

13. Pentanol is a……..

Correct : C. Tertiary alcohol

14. Glycerol is a……

Correct : D. Trihydric alcohol

15. Which is primary alcohol…….

Correct : B. Butane-1-ol

16. General formula of primary alcohol is …….

Correct : C. CH2OH

17. The characteristic grouping of secondary alcohols is…….

Correct : A. CHOH

18. Which of the following are isomers…….

Correct : B. Ethyl alcohol and dimethyl ether

19. The compound HOH2C - CH2OH is…….

Correct : B. Ethylene glycol

20. Methylated spirit is……..

Correct : B. Methanol + ethanol

21. Absolute alcohol is…….

Correct : A. 100% pure ethanol

22. Which of the following is dihydric alcohol …….

Correct : B. Ethylene glycol

23. Wood spirit is known as ………

Correct : A. Methanol

24. Which one of the following will produce a primary alcohol by reacting with CH3MgI……..

Correct : C. Ethylene oxide

25. The fermentation of starch to give alcohol occurs mainly with the help of ………

Correct : D. Enzymes

26. Ethanol is prepared industrially by………

Correct : C. Both the above

27. Ethyl alcohol is industrially prepared from ethylene by……..

Correct : C. Absorbing in H2SO4 followed by hydrolysis

28. Coconut oil upon alkaline hydrolysis gives…….

Correct : C. Glycerol

29. Which enzyme converts glucose and fructose both into ethanol……..

Correct : C. Zymase

30. Primary alcohols can be obtained from the reaction of the RMgX……

Correct : B. HCHO

31. Formaldehyde gives an additive product with methyl magnesium iodide which on aqueous hydrolysis gives …..

Correct : B. Ethyl alcohol

32. Benzyl alcohol is obtained from benzaldehyde by…..

Correct : B. Cannizaro's reaction

33. The product of reduction of benzaldehyde is …..

Correct : B. Benzyl alcohol

34. Alkenes convert into alcohols by……

Correct : B. Hydration of alkene by alkaline KMnO4

35. Acetic acid and CH3 are obtained on large scale by destructive distillation of…..

Correct : A. Wood

36. Acid catalyzed hydration of alkenes except ethene leads to the formation of ……

Correct : B. Secondary or tertiary alcohol

37. The boiling point of alcohol are …. than corresponding thiols.

Correct : A. More

38. Methyl alcohol can be distinguished from ethyl alcohol using ……

Correct : C. Sodium hydroxide and iodine

39. A compound X with molecular formula C3H8O can be oxidised to a compound Y with the molecular formula C3H6O2 X is most likely to be …..

Correct : A. Primary alcohol

40. On heating glycerol with conc. H2SO4 a compound is obtained which has a bad odour. The compound is…..

Correct : B. Acrolein

41. Isopropyl alcohol on oxidation forms……

Correct : A. Acetone

42. . The alcohol that produces turbidity immediately with ZnCl2 + conc. HCl at room temperature…..

Correct : C. 2-hydroxy-2-methylpropane

43. The reagent which easily reacts with ethanol and propanol is……

Correct : B. Grignard reagent

44. Propene is the product obtained by dehydrogenation of …….

Correct : A. 2-propanol

45. Which of the following statements is correct…..

Correct : B. Phenol is more acidic than ethyl alcohol

46. Boiling point of alcohol is comparatively higher than that corresponding alkane due to…….

Correct : A. Intermolecular hydrogen bonding

47. . The reaction of C2H5OH with H2SO4 does not give ……

Correct : C. Acetylene

48. In reaction of alcohols with alkali metal, acid etc. which of the following alcohol will react fastest….

Correct : C. Primary

49. Order of reactivity of alcohols towards sodium metal is ……

Correct : D. Pri < Sec < Ter

50. The -OH group of methyl alcohol cannot be replaced by chlorine by the action of……

Correct : A. Chlorine

51. Which compound has the highest boiling point……

Correct : D. Ethanol

52. Dehydration of ethanol gives……

Correct : C. Ethylene

53. Absolute ethanol cannot be obtained by simple fraction of a solution of ethanol and water because…..

Correct : C. They form a constant boiling mixture

54. In esterification, the reactivity of alcohols is ……

Correct : A. 1° > 2° > 3°

55. Methanol and ethanol are distinguished by the…….

Correct : B. Iodoform test

56. Ethyl alcohol exhibits acidic character on reacting with…….

Correct : B. Sodium metal

57. Which of the following is not characteristic of alcohols……

Correct : C. Lower members are insoluble in water and organic solvents but solubility regularly increases with molecular weight

58. By means of calcium chloride which of following can be dried……

Correct : D. None of these

59. Dimethyl ether and ethyl alcohol are …..

Correct : C. Functional isomer

60. The process of manufacture of absolute alcohol from rectified spirit is…….

Correct : C. Azeotropic distillation

61. When ethyl alcohol reacts with acetic acid, the products formed are…..

Correct : B. Ethyl acetate + water

62. Methanol and ethanol are miscible in water due to…..

Correct : B. Hydrogen bonding character

63. Which of the following is most soluble in water……

Correct : C. Tertiary butyl alcohol

64. If ethanol dissolves in water, then which of the following would be done……

Correct : B. Emission of heat and contraction in volume

65. When rectified spirit and benzene are distilled together, the first fraction obtained is……

Correct : A. A ternary azeotrope

66. Alcohols combine with acetylene in the presence of mercury compounds as catalyst to form…….

Correct : A. Acetals

67. The boiling point of methanol is greater than that of methyl thiol because

Correct : B. There is intermolecular hydrogen bonding in methanol and no hydrogen bonding in methyl thiol

68. At 530 K , glycerol reacts with oxalic acid to produce …….

Correct : A. Allyl alcohol

69. With anhydrous zinc chloride, ethylene glycol gives…….

Correct : C. Acetaldehyde

70. Amongst the following, HBr reacts fastest with…….

Correct : D. 2-methyl propane-2-ol

71. Which alcohol reacts with fatty acids to form fats…….

Correct : B. Glycerol

72. Which will dehydrate easily…….

Correct : D. 2-methyl butanol-2

73. On reaction with hot conc. H2SO4 which one of the following compounds loses a molecule of water….

Correct : D. CH3CH2OH

74. C2H5OH can be differentiated from CH3OH by…..

Correct : C. By iodoform test

75. Glycerol is used in the manufacture of

Correct : A. Dynamite

76. Rectified spirit is a mixture of ……….

Correct : D. 95.57% ethyl alcohol + 4.43% water

77. Glycerol as a triester present in …….

Correct : C. Vegetable oil and fat

78. : Power alcohol is ……

Correct : B. A mixture of petrol hydrocarbons and ethanol

79. : In cold countries ethylene glycol is added to water in the radiators to

Correct : A. Bring down the specific heat of water

80. Alcoholic fermentation is brought about by the action of

Correct : D. Yeast

81. Methyl alcohol is toxic. The reason assigned is………

Correct : B. It reacts with nitrogen and forms CN in the lungs

82. Glycerol is used……..

Correct : D. In all of these

83. Glycerol is not used in which of following cases…….

Correct : D. As an antiseptic agent

84. Liquor poisoning is due to …….

Correct : B. Presence of methyl alcohol

85. In order to make alcohol undrinkable pyridine and methanol are added to it. The resulting alcohol is called ………

Correct : C. Denatured spirit

86. Wine (alcoholic beverages) contains ………

Correct : C. C2H5OH

87. Which is used as an antifreeze…….

Correct : A. Glycol

88. In aldehydes and ketones, carbon of carbonyl group is………..

Correct : B. 2 sp hybridised

89. Aldehydes are isomeric with………..

Correct : A. Ketones

90. Which of the following compounds does not contain an -OH group………..

Correct : C. Aldehydes

91. IUPAC name of CH3COCH3 is………..

Correct : B. 2-propanone

92. Which of the following types of isomerism is shown by Pentanone.

Correct : D. All of these

93. IUPAC name of CHO CCl3 is…………..

Correct : D. 2, 2, 2-trichloroethanal

94. Which of the following is a mixed ketone ………..

Correct : A. Pentanone

95. Chloral is………..

Correct : C. CCl3COCCl3

96. Carbonyl compounds are usually ……………

Correct : C. Aldehydes and ketones

97. Acetone and acetaldehyde are …………..

Correct : C. Not isomers

98. Which of the aldehyde is most reactive ?

Correct : D. All the equally reactive

99. Acetophenone is prepared from

Correct : D. Friedel craft reaction

100. Which one of the following compounds is prepared in the laboratory from benzene by a substitution reaction………

Correct : C. Acetophenone