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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. Which of the following statements is true?

Alcohols have aromatic rings

Phenols undergo SN1 reactions

Phenols are more acidic than alcohols

Alcohols react faster with bromine water

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

Benzene

o-Nitrophenol

m-Nitrophenol

Nitrobenzene

3. Which reaction forms phenol from benzene?

Friedel-Crafts alkylation

Dow’s process (chlorobenzene + NaOH)

Sulfonation

Nitration

4. Which acid is used in esterification of alcohols?

Acetic acid

Sulfuric acid

Nitric acid

Hydrochloric acid

5. In the Lucas test, tertiary alcohols react:

With heating only

Immediately at room temperature

Slowly

Not at all

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

Ethylene glycol

Ethanol

Methanol

Glycerol

7. Which is more reactive towards electrophilic substitution?

Benzene

Aniline

Toluene

Phenol

8. Which type of alcohol is isopropyl alcohol?

Secondary

Tertiary

Aromatic

Primary

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

sp³

sp²d

sp²

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

Aldehyde

Ketone

Amine

Ether

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

HCl

Acetic acid

Phenol

Ethanol

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

Methanol

Ethanol

Phenol

2-propanol

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

Methanol

Phenol

2-propanol

Ethanol

14. Which alcohol is commonly used in hand sanitizers?

Ethanol

Methanol

Butanol

Propan-1-ol

15. Which of the following is most acidic?

Methanol

Ethanol

Water

Phenol

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

Ethanol

Glycerol

Ethylene glycol

Methanol

17. Which reaction forms phenol from benzene?

Friedel-Crafts alkylation

Dow’s process (chlorobenzene + NaOH)

Sulfonation

Nitration

18. Which is more reactive towards electrophilic substitution?

Aniline

Benzene

Phenol

Toluene

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

Ferric chloride test

Tollen’s test

Benedict’s test

Lucas test

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

Methanol

Ethyl alcohol

Propanol

Ethanol

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

Primary alcohol

Secondary alcohol

Tertiary alcohol

Phenol

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

Acetic anhydride

Ethyl acetate

Acetaldehyde

Ethene

23. Which type of alcohol forms esters most readily?

Primary

Tertiary

Secondary

Aromatic

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

sp²d

sp³

sp²

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

Halogenation

Oxidation

Dehydration to form alkene

Esterification

Page 2 of 4

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

Glycerol

Methanol

Ethanol

Propanol

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

Phenol

Ethanol

Acetic acid

Salicylic acid

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

Ethanol

Tert-butanol

2-propanol

Methanol

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

Ethanol

Propanol

Glycerol

Methanol

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

Alcohols have aromatic rings

Phenols have –OH directly bonded to benzene

Alcohols contain carbonyl groups

Phenols are saturated

31. Alcohols differ from phenols in that alcohols:

Are aromatic

Do not show electrophilic aromatic substitution

Are less soluble in water

Are more acidic

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

Phenols form ketones

Alcohols have higher boiling point

Phenols give violet color with FeCl₃

Alcohols are colored

33. Which compound is more acidic?

Methanol

Phenol

Propanol

Ethanol

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

Para and ortho positions

Only ortho position

Meta position

Only para position

35. Which alcohol is commonly used in hand sanitizers?

Butanol

Ethanol

Methanol

Propan-1-ol

36. Phenol is more acidic than alcohol due to:

Solubility in water

Resonance stabilization of phenoxide ion

High molecular weight

High boiling point

37. The –OH group in phenol makes it:

Electrically neutral

Electron-donating

Non-polar

Electron-withdrawing

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

Acetaldehyde

Ethene

Acetic anhydride

Ethyl acetate

39. Which class of alcohol is CH₃CH₂CH₂OH?

Primary

Secondary

Quaternary

Tertiary

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

Methanol

Ethanol

Phenol

Butanol

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

Addition reaction

Free radical substitution

Nucleophilic substitution

Electrophilic aromatic substitution

42. Phenol reacts with bromine water to give:

2,4,6-tribromophenol

4-bromophenol

Benzyl bromide

2-bromophenol

43. Which type of alcohol is isopropyl alcohol?

Secondary

Aromatic

Primary

Tertiary

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

NaOH

KMnO₄

HCl

NH₃

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

Esterification

Oxidation

Dehydration

Friedel-Crafts alkylation

46. The –OH group in phenol makes it:

Electrically neutral

Electron-donating

Electron-withdrawing

Non-polar

47. Which alcohol gives a positive iodoform test?

Methanol

Propanol

Ethanol

Benzyl alcohol

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

Nitration of alkanes

Hydrolysis of alkyl halides

Reduction of carbonyl compounds

Hydroboration

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

Salicylic acid

Acetic acid

Ethanol

Phenol

50. Phenol reacts with acetic anhydride to form:

Ester

Ketone

Acid

Ether

Page 3 of 4

51. Which reagent converts alcohols into alkyl halides?

HCl/ZnCl₂

Na₂CO₃

KOH

H₂O

52. Phenol reacts with bromine water to give:

Benzyl bromide

2,4,6-tribromophenol

4-bromophenol

2-bromophenol

53. Which of the following statements is true?

Alcohols react faster with bromine water

Alcohols have aromatic rings

Phenols undergo SN1 reactions

Phenols are more acidic than alcohols

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

2-propanol

Methanol

Tert-butanol

Ethanol

55. Alcohols react with carboxylic acids to form:

Aldehydes

Esters

Ketones

Ethers

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

Dehydration to form alkene

Oxidation

Halogenation

Esterification

57. Alcohols react with carboxylic acids to form:

Esters

Aldehydes

Ketones

Ethers

58. Alcohols differ from phenols in that alcohols:

Are less soluble in water

Do not show electrophilic aromatic substitution

Are more acidic

Are aromatic

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

Ethanol

HCl

Phenol

Acetic acid

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

Alcohols have aromatic rings

Phenols have –OH directly bonded to benzene

Phenols are saturated

Alcohols contain carbonyl groups

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

Reduction of carbonyl compounds

Hydrolysis of alkyl halides

Nitration of alkanes

Hydroboration

62. Which class of alcohol is CH₃CH₂CH₂OH?

Primary

Tertiary

Secondary

Quaternary

63. Which acid is used in esterification of alcohols?

Sulfuric acid

Acetic acid

Nitric acid

Hydrochloric acid

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

2-propanol

Tert-butanol

Methanol

Ethanol

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

2-propanol

Methanol

Ethanol

Tert-butanol

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

Toluene

Sodium phenoxide

Phenyl chloride

Benzene

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

Alcohols are colored

Phenols form ketones

Phenols give violet color with FeCl₃

Alcohols have higher boiling point

68. What is the IUPAC name of phenol?

Benzyl alcohol

Hydroxybenzene

Benzene hydroxide

Benzenol

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

Ether

Aldehyde

Amine

Ketone

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

Methanol

Ethanol

Tert-butanol

2-propanol

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

Tert-butanol

Ethanol

Methanol

2-propanol

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

Phenol

Secondary alcohol

Primary alcohol

Tertiary alcohol

73. Which alcohol gives a positive iodoform test?

Methanol

Ethanol

Benzyl alcohol

Propanol

74. What is the IUPAC name of phenol?

Benzyl alcohol

Benzene hydroxide

Hydroxybenzene

Benzenol

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

Para and ortho positions

Only ortho position

Only para position

Meta position

Page 4 of 4

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

Benzene

Toluene

Phenyl chloride

Sodium phenoxide

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

Friedel-Crafts alkylation

Dehydration

Esterification

Oxidation

78. Which reagent converts alcohols into alkyl halides?

H₂O

Na₂CO₃

HCl/ZnCl₂

KOH

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

Benzene

m-Nitrophenol

o-Nitrophenol

Nitrobenzene

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

Methanol

Butanol

Pentanol

Propanol

81. Which of the following alcohols is tertiary?

CH₃OH

CH₃CH₂OH

CH₃CH(OH)CH₃

(CH₃)₃COH

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

Tollen’s test

Lucas test

Benedict’s test

Ferric chloride test

83. Which compound is more acidic?

Propanol

Ethanol

Methanol

Phenol

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

Methanol

Propanol

Ethanol

Ethyl alcohol

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

Propanol

Methanol

Pentanol

Butanol

86. Which of the following alcohols is tertiary?

(CH₃)₃COH

CH₃CH₂OH

CH₃CH(OH)CH₃

CH₃OH

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

NH₃

KMnO₄

HCl

NaOH

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

Phenol

Methanol

Ethanol

Butanol

89. Phenol is more acidic than alcohol due to:

Solubility in water

Resonance stabilization of phenoxide ion

High molecular weight

High boiling point

90. What functional group is present in alcohols?

–NH₂

–COOH

–OH

–CHO

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

Tert-butanol

Ethanol

Methanol

2-propanol

92. Phenol reacts with acetic anhydride to form:

Ester

Ketone

Acid

Ether

93. Which type of alcohol forms esters most readily?

Secondary

Tertiary

Aromatic

Primary

94. Which of the following is most acidic?

Phenol

Methanol

Ethanol

Water

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

Nucleophilic substitution

Addition reaction

Electrophilic aromatic substitution

Free radical substitution

96. What functional group is present in alcohols?

–COOH

–NH₂

–CHO

–OH

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

Methanol

2-propanol

Tert-butanol

Ethanol

98. In the Lucas test, tertiary alcohols react:

Immediately at room temperature

Not at all

Slowly

With heating only

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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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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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