Chapter 11 : ORGANIC COMPOUNDS

Choose Appropriate Alternative

1. The compound possessing (-CHO) functional group is called...
   

   [A] an amide [B]  an aldehyde [C]  a ketone [D] an alcohol

2. Which functional group is possessed by carboxylic acid compounds?
   

   [A] >C=O [B] -COOH [C] -CHO [D] -OH

3. With which group is suffix 'ol' attached in the nomenclature of organic compounds?
   

   [A] -CHO [B] >CO [C] -OH [D] -X

4. Which functional group is there in methyl ethanoate?
   

   [A] Alcohol [B] Halide [C] Ketone [D] Ester

5. Which of the following compounds is obtained from molasses by fermentation?
   

   [A] Chloromethane [B] Ethanol [C] Acetone [D] Methanal

6. The solution of ethanol containing 5% water is called...
   

   [A] beer [B] varnish [C] rectified spirit [D] denatured alcohol

7. What is the molecular formula of formalin?
   

   [A] HCOOH [B] HCOOCH3 [C] HCHO [D] HCOOC2H5

8. Which substance is obtained by reduction of methanal?
   

   [A] Ethanol [B] CO2 and O2 [C] Methanol [D] Methanoic acid

9. Which of the following is prepared by Fischer-Tropsch method?
   

   [A] Acetic acid [B] Acetaldehyde [C] Acetone [D] Ethanol

10. Which of the following is a use of propanone?
    

    [A] As nail polish remover [B] As an antiseptic 
    [C] As an antibiotic     [D] As a preservative

11. The reaction between an alcohol and a carboxylic acid in presence of concentrated sulphuric acid is called...
    

    [A] hydrolysis [B] β-elimination [C] saponification [D] esterification

12. A compound with this functional group has minimum three carbon atoms.
    

    [A] -COOH [B] -CHO [C] >CO [D] -CONH2

13. Which of the following is the monomer of polythene?
    

    [A] CH3-CH3 [B] CH2=CH2 [C] CH3-CH=CH2 [D] HC≡CH

14. Which of the following is a use of acetic acid?
    

    [A] Preparation of vinegar [B] In white lead [C] As a reagent [D] All three

15. Which of the following is used in conveyer belts?
    

    [A] Polythene [B] PVC [C] TEFLON [D] Neoprene

16. What does 'P' stand for in IUPAC?
    

    [A] Pure [B] Physical [C] Primary [D] Proposed

17. What is the IUPAC name of methyl acetate?
    

    [A] Methanal [B] Methyl ethanoate [C] Ethyl methanoate [D] Ethanoic acid

18. What is the formula of methyl acetate (methyl ethanoate)?
    

    [A] CH3COOC2H5 [B] CH3COOCH3[C] C2H5COOCH3 [D] CH3COCH3

19. The general formula of alcohol series is...
    

    [A] CnH2nOH [B] CnHnOH [C] CnH2n+1OH [D] CnH2n+2OH

20. Which of the following is the true formula of an alcohol with 6 carbon atoms?
    

    [A] C6H11OH [B] C6H12OH [C] C6H13OH [D] C6H14OH

21. Biological catalysts are called...
    

    [A] hormones [B] reagents [C] coagulants [D] enzymes

22. ______ converts ______ of milk into ______.
    

    [A] Lactase, lactic acid, lactose [B] Lactose, lactic acid, lactase 
    [C] Lactic acid, lactose, lactase [D] Lactase, lactose, lactic acid

23. Fermentation of grape juice to ethanol is aided by the enzymes present in...
    

    [A] grape juice [B] yeast [C] lactobacillus [D] atmosphere

24. Sugar in molasses is converted to glucose (fructose) in presence of enzyme...
    

    [A] invertase [B] zymase [C] lactase [D] amylase

25. Fermentation of glucose (fructose) to alcohol takes place in presence of...
    

    [A] invertase [B] zymase [C] lactase [D] amylase

26. Absolute alcohol can be obtained by...
    

    [A] fermentation [B] evaporation [C] distillation [D] membrane technology

27. Hydration of ethene gives...
    

    [A] ethane [B] ethanol [C] ethanoic acid [D] polythene

28. The boiling point of pure ethanol is...
    

    [A] 311 K [B] 331 K [C] 351 K [D] 371 K

29. When ethanol reacts with sodium metal, _____ gas is produced.
    

    [A] Dihydrogen [B] Carbon dioxide [C] Carbon monoxide [D] Dioxygen

30. Oxidation of ethanol in presence of alkaline KMNO₄ yields...
    

    [A] ethanal [B] ethanoic acid [C] propanol [D] ethyl ethanoate

31. Which toxic substance is added to ethanol to prevent its consumption?
    

    [A] Methanol [B] Acetic acid [C] Methanal [D] Mercaptan

32. Consumption of ethanol in excess causes a disease called ______ of liver.
    

    [A] fibrosis [B] lymphosys [C] cirrhosis [D] carcinoma

33. In the liver of alcohol-addict the amount of _____ enzyme increases greatly.
    

    [A] P-540 [B] P-405 [C] P-504 [D] P-450

34. In which of the following compounds is carbonyl group present?
    

    [A] Aldehydes [B] Ketones [C] Esters [D] Both aldehydes and ketones

35. Oxidation of methanol in presence of catalyst______ gives methanal.
    

    [A] Ag2O [B] Pt [C] Pd [D] Ni

36. The boiling point of methanal (formaldehyde) is...
    

    [A] 293 K [B] 351 K [C] 253 K [D] 311 K

37. Which of the following can be used as a confirmatory test for aldehydes?
    

    [A] Silver-mirror test [B] Fehling's test [C] Benedict's test [D] All three

38. Reduction of methanal to methanol is carried out in presence of the catalyst...
    

    [A] Pt [B] Pd [C] Ni [D] NaBH4

39. Which of the following is a monomer of bakelite and melamine?
    

    [A] Isoprene [B] Methanal [C] Ethanal [D] Propanone

40. Which catalyst is used in the preparation of acetone by Fischer-Tropsch process?
    

    [A] Ag2O [B] Pd [C] CoO [D] Alkaline KMNO4

41. The boiling point of propanone is...
    

    [A] 239 K [B] 309 K [C] 351 K [D] 329 K

42. NaBH₄ (or LiAlH₄) reduces propanone to...
    

    [A] propan-1-ol [B] propan-2-ol [C] propanal [D] propanoic acid

43. Which of the following is the formula of propanone cyanohydrin?
    
    
    
    
44. Which catalyst is used in the preparation of acetic acid from methanol?
    

    [A] CoO [B] Ag2O [C] V2O5 [D] I2-Rh

45. The boiling point of ethanoic acid is...
    

    [A] 293 K [B] 329 K [C] 351 K [D] 391 K

46. The monomer of natural rubber is...
    

    [A] chloroprene [B] isoprene [C] neoprene [D] 1-chloroethene

47. Flooring tiles are prepared from...
    

    [A] polythene [B] TEFLON [C] polyvinyl chloride [D] polybutadiene

48. 2-chloro-1,3-diene is the monomer of...
    

    [A] PVC [B] TEFLON [C] neoprene [D] natural rubber

49. The elastic character of natural rubber is maintained between...
    

    [A] 283-333 K [B] 293-353 K [C] 273-353 K [D] 313-343 K

50. To increase the rate of reaction during vulcanization of rubber, ______ is added.
    

    [A] lead [B] sulphur [C] ZnO [D] PbCO3

51. During saponification reaction, what is obtained as by-product?
    

    [A] Glycerol [B] Ethanol [C] Sodium Ethoxide [D] Sodium carbonate

52. Which of the following is not a functional group containing oxygen?
    

    [A] Alcohol [B] Aldehyde [C] Ketone [D] Halide

53. The fermentation process to manufacture ethanol is...
    

    [A] an aerobic process       [B] an anaerobic process
    [C] a polymerization process [D] a catalytic aerobic process

54. The IUPAC name of acetic acid is...
    

    [A] methanoic acid [B] ethanoic acid [C] propanoic acid [D] vinegar

55. Ethylethanoate is...
    

    [A] an alcohol [B] an acid [C] an ester [D] a ketone

56. In aldehydes, the carbonyl group is attached to...
    

    [A] one hydrogen and one oxygen      [B] two alkyl groups 
    [C] one hydrogen and one alkyl group [D] one oxygen and one alkyl group

57. What is vinegar?
    

    [A] Methanol [B] Ethanol [C] Formic acid [D] Acetic acid

58. An organic acid + an alcohol ----> ______ + water
    

    [A] An aldehyde [B] a ketone [C] an ester [D] a carboxylic acid

59. The enzyme which converts milk into curd is...
    

    [A] lactase [B] invertase [C] zymase [D] cellulase

60. Which of the following is not an oxidizing agent?
    

    [A] NaBH4 [B] KMNO4 [C] Cr2O3 [D] Fehling's solution

61. Which of the following is a condensation polymer?
    

    [A] PVC [B] Nylon [C] Natural rubber [D] TEFLON

62. Which gas is produced during fermentation?
    

    [A] CO [B] CO2 [C] Cl2 [D] O2

63. Which of the following compounds has more reactivity?
    

    [A] Methane [B] Ethane [C] Ethene [D] Ethyne

64. Which functional group do carboxylic acid compounds have?
    

    [A] >C=O [B] -COOH [C] -CHO [D] -OH

65. What is the name of the aldehyde corresponding to butane?
    

    [A] Butyric acid [B] Butanone [C] Butanal [D] Butanol

66. The names of the compounds with functional group _____ end with suffix 'ol'.
    

    [A] -CHO [B] >C=O [C] -NH2 [D] -OH

67. What is the molecular formula of acetone?
    

    [A] CH3OH [B] CH3COCH3 [C] CH3CH2CHO [D] CH3CH2COOH

68. What is the molecular formula of formalin?
    

    [A] HCOOH [B] HCOOCH3 [C] HCHO [D] HCOOC2H5

69. Which acid is present in curd?
    

    [A] Lactic acid [B] Formic acid [C] Acetic acid [D] Citric acid

70. A person loses his eye-sight if he consumes ethanol containing toxic substance______.
    

    [A] Formalin [B] Vinegar [C] Propanol [D] Methanol

71. What is obtained by reduction of methanal?
    

    [A] Methanol [B] Ethanol [C] Ethanoic acid [D] Ethene

72. Which of the following is used to prepare milk bags?
    

    [A] Polythene [B] PVC [C] Nylon [D] TEFLON

73. Which functional group is attached with hydrocarbon part in soap?
    

    [A] -SO3K [B] SO3Na [C] -COONa [D] -COOH

74. Which of the following is used to prepare water pipes?
    

    [A] Polythene [B] PVC [C] Nylon [D] TEFLON

75. Which chemical is used to preserve the residues of dead animals?
    

    [A] Methanol [B] Ethanol [C] Formalin [D] Acetic acid

76. Water gas is a mixture of ...
    

    [A] CO and N2 [B] CO and O2 [C] CO2 and H2 [D] CO and H2

77. Which functional group is attached with hydrocarbon part in detergent?
    

    [A] -SO3K [B] SO3Na [C] -COONa [D] -COOH

78. Which of the following ions is present in hard water?
    

    [A] Cu2+ [B] Pb2+ [C] Mg2+ [D] Al3+ 

79. Which type of polymer is polystyrene?
    

    [A] Addition [B] Condensation [C] Bipolymer [D] Cyclic polymer

80. Which of the following is used as a bio-polymer for taking stitches after surgery?
    

    [A] Dextran [B] Nylon [C] Polyester [D] Acrylic fibre

81. Polyamide is also known as...
    

    [A] Polyester [B] Nylon [C] Acrylic fibre [D] TEFLON

82. Who invented vulcanized rubber?
    

    [A] Fischer-Tropsch [B] Maxwell [C] Haber [D] Charles Goodyear

83. _____ is obtained as a gas at room temperature.
    

    [A] Ethanol [B] Ethanoic acid [C] Methanal [D] Propanone

84. How much sulphur is added in rubber to obtain vulcanised rubber for making tyres?
    

    [A] 5% [B] 10% [C] 15% [D] 20%

85. 
    

    [A][B][C][D]

86. 
    

ANSWERS

(1) B (2) B (3) C (4) D (5) B (6) C (7) C (8) C (9) C (10) A (11) D (12) C (13) B (14) D (15) D (16) A (17) B (18) B (19) C (20) C (21) D (22) D (23) B (24) A (25) B (26) D (27) B (28) C (29) A (30) B (31) A (32) C (33) D (34) D (35) A (36) C (37) D (38) B (39) B (40) C (41) D (42) B (43) A (44) D (45) D (46) B (47) C (48) C (49) A (50) C (51) A (52) D (53) B (54) B (55) C (56) C (57) D (58) C (59) A (60) A (61) B (62) B (63) D (64) B (65) C (66) D (67) B (68) C (69) A (70) D (71) A (72) A (73) C (74) B (75) C (76) D (77) B (78) C (79) A (80) A (81) B (82) D (83) C (84) A (85) (86) (87) (88) (89) (90)