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MDCAT Chemistry Alcohols And Phenols Test Online

Mustansar KhanLast Updated: June 16, 2025

Chemistry Alcohols And Phenols MCQS Online Test

MDCAT Chemistry Alcohols And Phenols Chapter Online Test

Total Questions:	98
Time Allowed:	40 Minutes
Total Marks:	98
How to Attempt Test:	Please choose the right Option in MCQ-type question.
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MDCAT Chemistry Alcohols And Phenols Test

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Page 1 of 4

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1. What is the hybridization of oxygen in an alcohol molecule?

sp³

sp²d

sp²

2. Alcohols differ from phenols in that alcohols:

Are more acidic

Are less soluble in water

Are aromatic

Do not show electrophilic aromatic substitution

3. Which of the following can undergo both SN1 and E1 reactions?

Secondary alcohol

Tertiary alcohol

Phenol

Primary alcohol

4. Which acid is used in esterification of alcohols?

Acetic acid

Sulfuric acid

Hydrochloric acid

Nitric acid

5. In electrophilic substitution, phenol reacts most readily at:

Para and ortho positions

Meta position

Only ortho position

Only para position

6. What is the main difference between alcohol and phenol?

Phenols are saturated

Phenols have –OH directly bonded to benzene

Alcohols contain carbonyl groups

Alcohols have aromatic rings

7. Which of the following best distinguishes alcohols from phenols?

Phenols give violet color with FeCl₃

Phenols form ketones

Alcohols are colored

Alcohols have higher boiling point

8. Which of the following is an example of a dihydric alcohol?

Methanol

Ethanol

Ethylene glycol

Glycerol

9. Which acid is used in esterification of alcohols?

Hydrochloric acid

Acetic acid

Sulfuric acid

Nitric acid

10. Which product is formed when ethanol is heated with acetic acid and concentrated H₂SO₄?

Acetaldehyde

Acetic anhydride

Ethene

Ethyl acetate

11. What is the major product when phenol reacts with nitric acid?

o-Nitrophenol

Nitrobenzene

Benzene

m-Nitrophenol

12. Which of the following alcohols is tertiary?

CH₃CH(OH)CH₃

CH₃OH

(CH₃)₃COH

CH₃CH₂OH

13. Which of the following is not a method to prepare alcohols?

Hydroboration

Nitration of alkanes

Reduction of carbonyl compounds

Hydrolysis of alkyl halides

14. Which alcohol is commonly used in hand sanitizers?

Methanol

Propan-1-ol

Ethanol

Butanol

15. Alcohols react with carboxylic acids to form:

Ketones

Esters

Ethers

Aldehydes

16. What is the hybridization of oxygen in an alcohol molecule?

sp²d

sp³

sp²

17. Phenol reacts with bromine water to give:

4-bromophenol

Benzyl bromide

2,4,6-tribromophenol

2-bromophenol

18. Which of the following is used in the manufacture of aspirin?

Salicylic acid

Phenol

Ethanol

Acetic acid

19. Which compound is more acidic?

Ethanol

Methanol

Phenol

Propanol

20. Which type of alcohol forms esters most readily?

Secondary

Aromatic

Tertiary

Primary

21. Which alcohol can be oxidized to form a ketone?

Tert-butanol

Ethanol

2-propanol

Methanol

22. In electrophilic substitution, phenol reacts most readily at:

Only para position

Only ortho position

Meta position

Para and ortho positions

23. Which of the following can undergo both SN1 and E1 reactions?

Phenol

Tertiary alcohol

Secondary alcohol

Primary alcohol

24. Which of the following statements is true?

Phenols are more acidic than alcohols

Phenols undergo SN1 reactions

Alcohols have aromatic rings

Alcohols react faster with bromine water

25. Which of the following gives a neutral solution in water?

Phenol

HCl

Ethanol

Acetic acid

Page 2 of 4

26. Which of the following alcohols is miscible in water in all proportions?

Butanol

Methanol

Pentanol

Propanol

27. Which test is used to distinguish between alcohol and phenol?

Tollen’s test

Ferric chloride test

Lucas test

Benedict’s test

28. Phenol reacts with bromine water to give:

2,4,6-tribromophenol

4-bromophenol

2-bromophenol

Benzyl bromide

29. Which type of alcohol forms esters most readily?

Tertiary

Secondary

Primary

Aromatic

30. Which of the following is most acidic?

Phenol

Methanol

Water

Ethanol

31. Which of the following reacts fastest in Lucas test?

Ethanol

Tert-butanol

2-propanol

Methanol

32. Which of the following is the correct IUPAC name for CH₃CH₂OH?

Ethanol

Propanol

Ethyl alcohol

Methanol

33. In the Lucas test, tertiary alcohols react:

Not at all

Immediately at room temperature

Slowly

With heating only

34. Which class of alcohol is CH₃CH₂CH₂OH?

Tertiary

Secondary

Quaternary

Primary

35. Which alcohol cannot be oxidized to a carbonyl compound?

Ethanol

2-propanol

Tert-butanol

Methanol

36. Which alcohol can be oxidized to form a ketone?

Tert-butanol

Ethanol

2-propanol

Methanol

37. Which reagent converts alcohols into alkyl halides?

Na₂CO₃

H₂O

KOH

HCl/ZnCl₂

38. Phenol reacts with acetic anhydride to form:

Ketone

Acid

Ester

Ether

39. Which compound is formed when two alcohol molecules combine in acidic conditions?

Aldehyde

Amine

Ketone

Ether

40. Which of the following is not a method to prepare alcohols?

Reduction of carbonyl compounds

Nitration of alkanes

Hydroboration

Hydrolysis of alkyl halides

41. Which reagent can oxidize a primary alcohol to a carboxylic acid?

NH₃

HCl

KMnO₄

NaOH

42. Which of the following reacts fastest in Lucas test?

2-propanol

Methanol

Ethanol

Tert-butanol

43. Which of the following is most reactive in dehydration to form alkenes?

2-propanol

Ethanol

Methanol

Tert-butanol

44. Which is more reactive towards electrophilic substitution?

Phenol

Benzene

Aniline

Toluene

45. Which compound is more acidic?

Propanol

Methanol

Phenol

Ethanol

46. Which of the following reactions does phenol undergo easily?

Free radical substitution

Electrophilic aromatic substitution

Nucleophilic substitution

Addition reaction

47. What happens to alcohol in the presence of concentrated H₂SO₄ and heat?

Oxidation

Halogenation

Esterification

Dehydration to form alkene

48. What functional group is present in alcohols?

–OH

–CHO

–NH₂

–COOH

49. Which reagent converts alcohols into alkyl halides?

H₂O

KOH

Na₂CO₃

HCl/ZnCl₂

50. Which of the following is the correct IUPAC name for CH₃CH₂OH?

Methanol

Ethyl alcohol

Ethanol

Propanol

Page 3 of 4

51. Phenol reacts with acetic anhydride to form:

Ether

Acid

Ketone

Ester

52. Which of the following best distinguishes alcohols from phenols?

Alcohols have higher boiling point

Alcohols are colored

Phenols form ketones

Phenols give violet color with FeCl₃

53. Which of the following will give a fruity smell on reaction with a carboxylic acid?

Ethanol

Butanol

Phenol

Methanol

54. What is the IUPAC name of phenol?

Benzyl alcohol

Hydroxybenzene

Benzenol

Benzene hydroxide

55. Which of the following statements is true?

Phenols are more acidic than alcohols

Alcohols have aromatic rings

Alcohols react faster with bromine water

Phenols undergo SN1 reactions

56. Which is more reactive towards electrophilic substitution?

Benzene

Aniline

Toluene

Phenol

57. What happens to alcohol in the presence of concentrated H₂SO₄ and heat?

Halogenation

Oxidation

Dehydration to form alkene

Esterification

58. Which reaction forms phenol from benzene?

Dow’s process (chlorobenzene + NaOH)

Friedel-Crafts alkylation

Nitration

Sulfonation

59. What is the major product when phenol reacts with nitric acid?

o-Nitrophenol

m-Nitrophenol

Nitrobenzene

Benzene

60. The –OH group in phenol makes it:

Non-polar

Electron-withdrawing

Electron-donating

Electrically neutral

61. Which of the following reactions is not typical for alcohols?

Esterification

Dehydration

Friedel-Crafts alkylation

Oxidation

62. What is formed when phenol reacts with sodium metal?

Toluene

Phenyl chloride

Benzene

Sodium phenoxide

63. Which reaction forms phenol from benzene?

Nitration

Friedel-Crafts alkylation

Dow’s process (chlorobenzene + NaOH)

Sulfonation

64. Which of the following alcohols is tertiary?

CH₃OH

CH₃CH₂OH

(CH₃)₃COH

CH₃CH(OH)CH₃

65. Which of the following is an example of a dihydric alcohol?

Glycerol

Methanol

Ethylene glycol

Ethanol

66. What is the IUPAC name of phenol?

Benzyl alcohol

Benzene hydroxide

Hydroxybenzene

Benzenol

67. Which alcohol gives a positive iodoform test?

Methanol

Benzyl alcohol

Propanol

Ethanol

68. Which of the following has the highest boiling point?

Propanol

Ethanol

Methanol

Glycerol

69. Which of the following reactions is not typical for alcohols?

Oxidation

Dehydration

Esterification

Friedel-Crafts alkylation

70. Which test is used to distinguish between alcohol and phenol?

Benedict’s test

Tollen’s test

Ferric chloride test

Lucas test

71. Which of the following is used in the manufacture of aspirin?

Salicylic acid

Phenol

Ethanol

Acetic acid

72. Which product is formed when ethanol is heated with acetic acid and concentrated H₂SO₄?

Acetic anhydride

Acetaldehyde

Ethene

Ethyl acetate

73. What is the main difference between alcohol and phenol?

Phenols are saturated

Alcohols contain carbonyl groups

Phenols have –OH directly bonded to benzene

Alcohols have aromatic rings

74. Which of the following gives violet color with neutral FeCl₃?

2-propanol

Phenol

Ethanol

Methanol

75. Which compound is formed when two alcohol molecules combine in acidic conditions?

Ketone

Amine

Aldehyde

Ether

Page 4 of 4

76. Which class of alcohol is CH₃CH₂CH₂OH?

Quaternary

Primary

Secondary

Tertiary

77. Phenol is more acidic than alcohol due to:

High molecular weight

Solubility in water

High boiling point

Resonance stabilization of phenoxide ion

78. What functional group is present in alcohols?

–CHO

–OH

–NH₂

–COOH

79. Which of the following is most reactive in dehydration to form alkenes?

Ethanol

Methanol

Tert-butanol

2-propanol

80. Which alcohol cannot be oxidized to a carbonyl compound?

2-propanol

Ethanol

Methanol

Tert-butanol

81. Which of the following gives a neutral solution in water?

HCl

Ethanol

Phenol

Acetic acid

82. Phenol is more acidic than alcohol due to:

Resonance stabilization of phenoxide ion

High molecular weight

Solubility in water

High boiling point

83. Which of the following is most acidic?

Water

Ethanol

Methanol

Phenol

84. Which type of alcohol is isopropyl alcohol?

Secondary

Tertiary

Primary

Aromatic

85. Which reagent can oxidize a primary alcohol to a carboxylic acid?

NaOH

NH₃

HCl

KMnO₄

86. What is formed when phenol reacts with sodium metal?

Toluene

Phenyl chloride

Sodium phenoxide

Benzene

87. Which of the following gives violet color with neutral FeCl₃?

Methanol

Ethanol

Phenol

2-propanol

88. Which of the following alcohols is miscible in water in all proportions?

Propanol

Methanol

Butanol

Pentanol

89. The –OH group in phenol makes it:

Electron-donating

Electron-withdrawing

Electrically neutral

Non-polar

90. In the Lucas test, tertiary alcohols react:

Immediately at room temperature

Not at all

With heating only

Slowly

91. Alcohols react with carboxylic acids to form:

Ketones

Esters

Aldehydes

Ethers

92. Which of the following reactions does phenol undergo easily?

Nucleophilic substitution

Addition reaction

Electrophilic aromatic substitution

Free radical substitution

93. Which of the following has the highest boiling point?

Ethanol

Methanol

Glycerol

Propanol

94. Alcohols differ from phenols in that alcohols:

Are more acidic

Are aromatic

Are less soluble in water

Do not show electrophilic aromatic substitution

95. Which of the following will give a fruity smell on reaction with a carboxylic acid?

Phenol

Butanol

Ethanol

Methanol

96. Which alcohol is commonly used in hand sanitizers?

Ethanol

Butanol

Methanol

Propan-1-ol

97. Which alcohol gives a positive iodoform test?

Methanol

Benzyl alcohol

Ethanol

Propanol

98. Which type of alcohol is isopropyl alcohol?

Tertiary

Secondary

Aromatic

Primary

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Mustansar KhanLast Updated: June 16, 2025

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MDCAT Chemistry Alcohols And Phenols Test Online

Chemistry Alcohols And Phenols MCQS Online Test

MDCAT Chemistry Alcohols And Phenols Chapter Online Test

MDCAT Chemistry Alcohols And Phenols Test

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