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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 best distinguishes alcohols from phenols?

Phenols form ketones

Phenols give violet color with FeCl₃

Alcohols are colored

Alcohols have higher boiling point

2. What functional group is present in alcohols?

–COOH

–CHO

–OH

–NH₂

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

Ethene

Ethyl acetate

Acetaldehyde

Acetic anhydride

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

Toluene

Benzene

Phenyl chloride

Sodium phenoxide

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

Ethanol

Butanol

Phenol

Methanol

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

Ethyl alcohol

Methanol

Ethanol

Propanol

7. Alcohols differ from phenols in that alcohols:

Are aromatic

Do not show electrophilic aromatic substitution

Are more acidic

Are less soluble in water

8. Alcohols react with carboxylic acids to form:

Ethers

Ketones

Aldehydes

Esters

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

Ethanol

Methanol

2-propanol

Tert-butanol

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

Phenyl chloride

Sodium phenoxide

Benzene

Toluene

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

Ethanol

Tert-butanol

2-propanol

Methanol

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

Ethanol

Tert-butanol

2-propanol

Methanol

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

Free radical substitution

Addition reaction

Nucleophilic substitution

Electrophilic aromatic substitution

14. Which alcohol is commonly used in hand sanitizers?

Propan-1-ol

Ethanol

Butanol

Methanol

15. Which class of alcohol is CH₃CH₂CH₂OH?

Secondary

Primary

Tertiary

Quaternary

16. Which alcohol is commonly used in hand sanitizers?

Methanol

Propan-1-ol

Ethanol

Butanol

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

sp²

sp³

sp²d

18. Which type of alcohol is isopropyl alcohol?

Primary

Aromatic

Tertiary

Secondary

19. Phenol is more acidic than alcohol due to:

Solubility in water

High boiling point

High molecular weight

Resonance stabilization of phenoxide ion

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

2-propanol

Ethanol

Methanol

Tert-butanol

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

KMnO₄

HCl

NH₃

NaOH

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

Nucleophilic substitution

Electrophilic aromatic substitution

Addition reaction

Free radical substitution

23. The –OH group in phenol makes it:

Non-polar

Electron-donating

Electrically neutral

Electron-withdrawing

24. Which reagent converts alcohols into alkyl halides?

Na₂CO₃

KOH

H₂O

HCl/ZnCl₂

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

Benedict’s test

Ferric chloride test

Tollen’s test

Lucas test

Page 2 of 4

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

KMnO₄

NaOH

HCl

NH₃

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

Oxidation

Esterification

Dehydration

Friedel-Crafts alkylation

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

Glycerol

Propanol

Ethanol

Methanol

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

Glycerol

Ethanol

Methanol

Propanol

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

sp³

sp²

sp²d

31. Phenol reacts with bromine water to give:

4-bromophenol

2,4,6-tribromophenol

2-bromophenol

Benzyl bromide

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

2-propanol

Ethanol

Methanol

Tert-butanol

33. Which type of alcohol forms esters most readily?

Secondary

Aromatic

Primary

Tertiary

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

Secondary alcohol

Tertiary alcohol

Phenol

Primary alcohol

35. What is the IUPAC name of phenol?

Benzenol

Benzene hydroxide

Hydroxybenzene

Benzyl alcohol

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

Para and ortho positions

Only ortho position

Only para position

Meta position

37. The –OH group in phenol makes it:

Electrically neutral

Non-polar

Electron-withdrawing

Electron-donating

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

Salicylic acid

Acetic acid

Phenol

Ethanol

39. Which of the following is most acidic?

Phenol

Ethanol

Methanol

Water

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

Glycerol

Ethanol

Ethylene glycol

Methanol

41. Which type of alcohol is isopropyl alcohol?

Secondary

Tertiary

Primary

Aromatic

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

2-propanol

Ethanol

Methanol

Tert-butanol

43. Phenol reacts with acetic anhydride to form:

Ketone

Ether

Ester

Acid

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

Salicylic acid

Phenol

Acetic acid

Ethanol

45. Which alcohol gives a positive iodoform test?

Ethanol

Propanol

Methanol

Benzyl alcohol

46. Alcohols differ from phenols in that alcohols:

Are aromatic

Are more acidic

Are less soluble in water

Do not show electrophilic aromatic substitution

47. Which acid is used in esterification of alcohols?

Nitric acid

Hydrochloric acid

Acetic acid

Sulfuric acid

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

Esterification

Dehydration to form alkene

Oxidation

Halogenation

49. What functional group is present in alcohols?

–NH₂

–CHO

–COOH

–OH

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

Hydroboration

Reduction of carbonyl compounds

Nitration of alkanes

Hydrolysis of alkyl halides

Page 3 of 4

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

Only para position

Only ortho position

Meta position

Para and ortho positions

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

Benedict’s test

Lucas test

Ferric chloride test

Tollen’s test

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

HCl

Phenol

Acetic acid

Ethanol

54. In the Lucas test, tertiary alcohols react:

Not at all

With heating only

Slowly

Immediately at room temperature

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

Phenols are saturated

Phenols have –OH directly bonded to benzene

Alcohols have aromatic rings

Alcohols contain carbonyl groups

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

Reduction of carbonyl compounds

Hydroboration

Hydrolysis of alkyl halides

Nitration of alkanes

57. Which acid is used in esterification of alcohols?

Sulfuric acid

Nitric acid

Hydrochloric acid

Acetic acid

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

m-Nitrophenol

Nitrobenzene

Benzene

o-Nitrophenol

59. Which reaction forms phenol from benzene?

Dow’s process (chlorobenzene + NaOH)

Friedel-Crafts alkylation

Sulfonation

Nitration

60. Which type of alcohol forms esters most readily?

Primary

Aromatic

Secondary

Tertiary

61. Which class of alcohol is CH₃CH₂CH₂OH?

Secondary

Primary

Quaternary

Tertiary

62. Which reagent converts alcohols into alkyl halides?

Na₂CO₃

H₂O

KOH

HCl/ZnCl₂

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

Propanol

Methanol

Butanol

Pentanol

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

Alcohols have higher boiling point

Alcohols are colored

Phenols give violet color with FeCl₃

Phenols form ketones

65. Which compound is more acidic?

Phenol

Propanol

Methanol

Ethanol

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

Ethylene glycol

Ethanol

Glycerol

Methanol

67. Which of the following is most acidic?

Water

Phenol

Ethanol

Methanol

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

Ethanol

Methanol

Tert-butanol

2-propanol

69. Which is more reactive towards electrophilic substitution?

Toluene

Benzene

Phenol

Aniline

70. Phenol is more acidic than alcohol due to:

High boiling point

Resonance stabilization of phenoxide ion

Solubility in water

High molecular weight

71. Which compound is more acidic?

Phenol

Propanol

Methanol

Ethanol

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

Methanol

Ethanol

Phenol

2-propanol

73. Which of the following statements is true?

Phenols undergo SN1 reactions

Alcohols have aromatic rings

Phenols are more acidic than alcohols

Alcohols react faster with bromine water

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

Methanol

Phenol

2-propanol

Ethanol

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

Esterification

Oxidation

Friedel-Crafts alkylation

Dehydration

Page 4 of 4

76. In the Lucas test, tertiary alcohols react:

Immediately at room temperature

Slowly

Not at all

With heating only

77. What is the IUPAC name of phenol?

Hydroxybenzene

Benzyl alcohol

Benzene hydroxide

Benzenol

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

Amine

Ketone

Ether

Aldehyde

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

HCl

Ethanol

Phenol

Acetic acid

80. Which of the following alcohols is tertiary?

CH₃CH₂OH

CH₃OH

(CH₃)₃COH

CH₃CH(OH)CH₃

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

Ethanol

Tert-butanol

Methanol

2-propanol

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

Esterification

Dehydration to form alkene

Halogenation

Oxidation

83. Which is more reactive towards electrophilic substitution?

Aniline

Toluene

Benzene

Phenol

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

Propanol

Ethanol

Methanol

Ethyl alcohol

85. Alcohols react with carboxylic acids to form:

Ketones

Esters

Ethers

Aldehydes

86. Phenol reacts with acetic anhydride to form:

Ketone

Ether

Ester

Acid

87. Which of the following alcohols is tertiary?

CH₃CH(OH)CH₃

CH₃CH₂OH

CH₃OH

(CH₃)₃COH

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

Phenol

Secondary alcohol

Tertiary alcohol

Primary alcohol

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

Benzene

m-Nitrophenol

Nitrobenzene

o-Nitrophenol

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

Butanol

Phenol

Methanol

Ethanol

91. Which reaction forms phenol from benzene?

Nitration

Sulfonation

Friedel-Crafts alkylation

Dow’s process (chlorobenzene + NaOH)

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

Acetaldehyde

Acetic anhydride

Ethyl acetate

Ethene

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

Ether

Aldehyde

Amine

Ketone

94. Phenol reacts with bromine water to give:

Benzyl bromide

4-bromophenol

2-bromophenol

2,4,6-tribromophenol

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

Methanol

Butanol

Pentanol

Propanol

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

Phenols have –OH directly bonded to benzene

Alcohols have aromatic rings

Alcohols contain carbonyl groups

Phenols are saturated

97. Which alcohol gives a positive iodoform test?

Benzyl alcohol

Methanol

Propanol

Ethanol

98. Which of the following statements is true?

Alcohols react faster with bromine water

Phenols are more acidic than alcohols

Alcohols have aromatic rings

Phenols undergo SN1 reactions

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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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