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Alcohols, Phenols and Ethers Practice Questions

Class 12 · Chemistry · 2505 free MCQs with instant results and detailed explanations.

2505
Total
798
Easy
1231
Medium
476
Hard

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Topics in Alcohols, Phenols and Ethers

Reactions 822
Properties 843
Preparation 840

Sample Questions from Alcohols, Phenols and Ethers

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Q1
Easy
Which of the following methods can be used to prepare alcohols from alkenes?
A. Hydration of alkenes
B. Dehydration of alcohols
C. Halogenation of alkenes
D. Oxidation of alkanes
Show Answer & Explanation
Correct Answer: A
Hydration of alkenes involves adding water across the double bond to form alcohols.
Q2
Easy
What is the main product when phenol reacts with sodium hydroxide?
A. Phenoxide ion
B. Benzene
C. Sodium phenolate
D. Alcohol
Show Answer & Explanation
Correct Answer: C
Phenol reacts with sodium hydroxide to form sodium phenolate, an important salt of phenol.
Q3
Easy
Which reagent is used to convert an alkyl halide into an alcohol?
A. Sodium bicarbonate
B. Water
C. Sodium hydroxide
D. Calcium carbonate
Show Answer & Explanation
Correct Answer: C
Sodium hydroxide can nucleophilically attack alkyl halides to form alcohols.
Q4
Medium
Which of the following methods is NOT typically used for the preparation of alcohols?
A. Hydrolysis of alkenes
B. Reduction of aldehydes
C. Oxidation of alkanes
D. Fermentation of sugars
Show Answer & Explanation
Correct Answer: C
Oxidation of alkanes generally does not yield alcohols, while the other methods do.
Q5
Medium
What is the primary product formed when 2-butanol is dehydrated?
A. 1-butene
B. 2-butene
C. butyne
D. butanol
Show Answer & Explanation
Correct Answer: B
Dehydration of 2-butanol typically results in the formation of 2-butene as the major product.
Q6
Medium
Which reagent is commonly used to convert phenols into ethers?
A. Sodium hydroxide
B. Sodium metal
C. Alkyl halide
D. Grignard reagent
Show Answer & Explanation
Correct Answer: C
Ethers can be prepared from phenols using alkyl halides in the presence of a base.
Q7
Medium
Which of the following is an example of a primary alcohol?
A. 2-Propanol
B. 1-Butanol
C. Cyclohexanol
D. 2-Pentanol
Show Answer & Explanation
Correct Answer: B
1-Butanol is a primary alcohol as it has the hydroxyl group attached to a terminal carbon.
Q8
Hard
What reagent is required to convert an alcohol to an alkyl halide?
A. SOCl2
B. NaBH4
C. H2SO4
D. KMnO4
Show Answer & Explanation
Correct Answer: A
SOCl2 (thionyl chloride) is commonly used to convert alcohols into alkyl halides efficiently.
Q9
Hard
Which method can be used to prepare phenols from aromatic hydrocarbons?
A. Hydrolysis of alkyl halides
B. Oxidation of aromatic hydrocarbons
C. Bromination followed by hydrolysis
D. Hydrogenation of phenol
Show Answer & Explanation
Correct Answer: B
Oxidation of aromatic hydrocarbons, such as toluene, using oxidizing agents can yield phenols.
Q10
Hard
Which of the following is a method of synthesizing ethers?
A. Dehydration of alcohols
B. Friedel-Crafts alkylation
C. Reduction of aldehydes
D. Hydrolysis of ethers
Show Answer & Explanation
Correct Answer: A
The dehydration of two alcohols can lead to the formation of ethers under acidic conditions.

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Alcohols, Phenols and Ethers — Class 12 Chemistry Practice Questions Online

This page contains 2505 practice MCQs for the chapter Alcohols, Phenols and Ethers in Class 12 Chemistry. The questions are organized by difficulty — 798 easy, 1231 medium, 476 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 3 topics, giving you comprehensive coverage of the entire chapter.