Chemistry Alcohols And Phenols Online Mcqs Test

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Question 1

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

Answer

Acetic acid

Question 2

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

Answer

Ethyl acetate

Answer

Acetic anhydride

Answer

Acetaldehyde

Question 3

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

Answer

2-propanol

Question 4

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

Answer

Nitrobenzene

Answer

m-Nitrophenol

Answer

o-Nitrophenol

Question 5

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

Answer

2-propanol

Answer

Tert-butanol

Question 6

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

Answer

Electrophilic aromatic substitution

Answer

Nucleophilic substitution

Answer

Addition reaction

Answer

Free radical substitution

Question 7

7. In the Lucas test, tertiary alcohols react:

Answer

Immediately at room temperature

Answer

With heating only

Answer

Not at all

Question 8

8. Which reaction forms phenol from benzene?

Answer

Sulfonation

Answer

Dow’s process (chlorobenzene + NaOH)

Answer

Friedel-Crafts alkylation

Question 9

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

Question 10

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

Question 11

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

Answer

Tert-butanol

Answer

2-propanol

Question 12

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

Answer

Phenyl chloride

Answer

Sodium phenoxide

Question 13

13. Which compound is more acidic?

Question 14

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

Question 15

15. Which of the following is most acidic?

Question 16

16. Alcohols react with carboxylic acids to form:

Question 17

17. What is the IUPAC name of phenol?

Answer

Benzyl alcohol

Answer

Benzene hydroxide

Answer

Hydroxybenzene

Question 18

18. In the Lucas test, tertiary alcohols react:

Answer

With heating only

Answer

Not at all

Answer

Immediately at room temperature

Question 19

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

Answer

Esterification

Answer

Dehydration

Answer

Friedel-Crafts alkylation

Question 20

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

Question 21

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

Answer

Phenols have –OH directly bonded to benzene

Answer

Alcohols have aromatic rings

Answer

Phenols are saturated

Answer

Alcohols contain carbonyl groups

Question 22

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

Answer

Benedict’s test

Answer

Ferric chloride test

Answer

Tollen’s test

Answer

Lucas test

Question 23

23. Which of the following statements is true?

Answer

Alcohols react faster with bromine water

Answer

Alcohols have aromatic rings

Answer

Phenols are more acidic than alcohols

Answer

Phenols undergo SN1 reactions

Question 24

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

Answer

Alcohols contain carbonyl groups

Answer

Alcohols have aromatic rings

Answer

Phenols have –OH directly bonded to benzene

Answer

Phenols are saturated

Question 25

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

Answer

Dehydration

Answer

Friedel-Crafts alkylation

Answer

Esterification

Question 26

26. Which type of alcohol forms esters most readily?

Question 27

27. Alcohols react with carboxylic acids to form:

Question 28

28. Which of the following alcohols is tertiary?

Answer

CH₃CH(OH)CH₃

Answer

(CH₃)₃COH

Answer

CH₃CH₂OH

Question 29

29. Which is more reactive towards electrophilic substitution?

Question 30

30. Which acid is used in esterification of alcohols?

Answer

Sulfuric acid

Answer

Nitric acid

Answer

Acetic acid

Answer

Hydrochloric acid

Question 31

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

Question 32

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

Answer

2-propanol

Answer

Tert-butanol

Question 33

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

Question 34

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

Answer

Ethylene glycol

Question 35

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

Answer

2-propanol

Question 36

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

Answer

Phenols give violet color with FeCl₃

Answer

Alcohols are colored

Answer

Alcohols have higher boiling point

Answer

Phenols form ketones

Question 37

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

Question 38

38. Phenol reacts with bromine water to give:

Answer

2-bromophenol

Answer

2,4,6-tribromophenol

Answer

Benzyl bromide

Answer

4-bromophenol

Question 39

39. Phenol reacts with acetic anhydride to form:

Question 40

40. Which of the following alcohols is tertiary?

Answer

CH₃CH(OH)CH₃

Answer

CH₃CH₂OH

Answer

(CH₃)₃COH

Question 41

41. Phenol reacts with bromine water to give:

Answer

Benzyl bromide

Answer

2,4,6-tribromophenol

Answer

4-bromophenol

Answer

2-bromophenol

Question 42

42. What functional group is present in alcohols?

Question 43

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

Question 44

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

Question 45

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

Answer

Acetic acid

Answer

Salicylic acid

Question 46

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

Answer

Ethyl alcohol

Question 47

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

Answer

Acetic acid

Question 48

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

Answer

Meta position

Answer

Only ortho position

Answer

Only para position

Answer

Para and ortho positions

Question 49

49. Which class of alcohol is CH₃CH₂CH₂OH?

Answer

Quaternary

Question 50

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

Answer

Acetic acid

Answer

Salicylic acid

Question 51

51. Which of the following is most acidic?

Question 52

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

Answer

Ethylene glycol

Question 53

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

Answer

o-Nitrophenol

Answer

Nitrobenzene

Answer

m-Nitrophenol

Question 54

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

Question 55

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

Answer

Halogenation

Answer

Dehydration to form alkene

Answer

Esterification

Question 56

56. Phenol is more acidic than alcohol due to:

Answer

Resonance stabilization of phenoxide ion

Answer

High boiling point

Answer

High molecular weight

Answer

Solubility in water

Question 57

57. Which is more reactive towards electrophilic substitution?

Question 58

58. Which alcohol is commonly used in hand sanitizers?

Answer

Propan-1-ol

Question 59

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

Answer

Hydrolysis of alkyl halides

Answer

Reduction of carbonyl compounds

Answer

Hydroboration

Answer

Nitration of alkanes

Question 60

60. Which reagent converts alcohols into alkyl halides?

Answer

Na₂CO₃

Answer

HCl/ZnCl₂

Question 61

61. Which class of alcohol is CH₃CH₂CH₂OH?

Answer

Quaternary

Question 62

62. Which type of alcohol forms esters most readily?

Question 63

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

Answer

2-propanol

Answer

Tert-butanol

Question 64

64. Which acid is used in esterification of alcohols?

Answer

Hydrochloric acid

Answer

Sulfuric acid

Answer

Nitric acid

Answer

Acetic acid

Answer 115

Tert-butanol

Answer 116

2-propanol

Answer 117

Do not show electrophilic aromatic substitution

Answer 118

Are less soluble in water

Answer 119

Are more acidic

Answer 120

Are aromatic

Answer 121

Tollen’s test

Answer 122

Ferric chloride test

Answer 123

Lucas test

Answer 124

Benedict’s test

Answer 125

Nitration of alkanes

Answer 126

Hydroboration

Answer 127

Hydrolysis of alkyl halides

Answer 128

Reduction of carbonyl compounds

Answer 129

Acetaldehyde

Answer 130

Acetic anhydride

Answer 131

Ethyl acetate

Answer 132

Sodium phenoxide

Answer 133

Phenyl chloride

Answer 134

Electron-withdrawing

Answer 135

Electrically neutral

Answer 136

Electron-donating

Answer 137

Phenols are more acidic than alcohols

Answer 138

Alcohols react faster with bromine water

Answer 139

Alcohols have aromatic rings

Answer 140

Phenols undergo SN1 reactions

Answer 141

Propan-1-ol

Answer 142

Ethyl alcohol

Answer 143

Tertiary alcohol

Answer 144

Secondary alcohol

Answer 145

Primary alcohol

Answer 146

Tert-butanol

Answer 147

2-propanol

Answer 148

Electrically neutral

Answer 149

Electron-donating

Answer 150

Electron-withdrawing

Answer 151

Tert-butanol

Answer 152

2-propanol

Answer 153

Benzyl alcohol

Answer 154

2-propanol

Answer 155

Tert-butanol

Answer 156

Primary alcohol

Answer 157

Secondary alcohol

Answer 158

Tertiary alcohol

Answer 159

Only ortho position

Answer 160

Only para position

Answer 161

Meta position

Answer 162

Para and ortho positions

Answer 163

Dehydration to form alkene

Answer 164

Esterification

Answer 165

Halogenation

Answer 166

Friedel-Crafts alkylation

Answer 167

Sulfonation

Answer 168

Dow’s process (chlorobenzene + NaOH)

Answer 169

HCl/ZnCl₂

Answer 170

Na₂CO₃

Answer 171

Are less soluble in water

Answer 172

Are more acidic

Answer 173

Do not show electrophilic aromatic substitution

Answer 174

Are aromatic

Answer 175

Benzyl alcohol

Answer 176

Benzene hydroxide

Answer 177

Hydroxybenzene

Answer 178

Benzyl alcohol

Answer 179

Phenols give violet color with FeCl₃

Answer 180

Phenols form ketones

Answer 181

Alcohols have higher boiling point

Answer 182

Alcohols are colored

Answer 183

High boiling point

Answer 184

Resonance stabilization of phenoxide ion

Answer 185

Solubility in water

Answer 186

High molecular weight

Answer 187

Free radical substitution

Answer 188

Addition reaction

Answer 189

Nucleophilic substitution

Answer 190

Electrophilic aromatic substitution

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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