The CBSE Class 12 Chemistry exam requires precision and a thorough understanding of Alcohols, Phenols And Ethers. This article provides a set of CBSE Class 12 PYQs on Alcohols, Phenols And Ethers to help you understand the topic and improve your skills with the help of detailed solutions, ensuring conceptual clarity, which will help you in the CBSE Class 12 2026 exam.
Whether you're revising the basics or testing your knowledge, these CBSE Class 12 PYQs will serve as a valuable practice resource.
The CBSE Class 12 2026 exam is likely to continue on the same pattern as CBSE Class 12 2025. One of the best ways to improve your preparation is to practise CBSE Class 12 previous year questions (PYQs), which include a fair mix of questions from all topics.
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CBSE Class 12 PYQs on Alcohols, Phenols And Ethers
1.
The conversion of phenol to salicylic acid can be accomplished by- Reimer-Tiemann reaction
- Friedel-Crafts reaction
- Kolbe reaction
- Coupling reaction
2.
Assertion (A): The boiling point of ethanol is higher than that of methoxymethane.
Reason (R): There is intramolecular hydrogen bonding in ethanol.- Assertion (A) is true, but Reason (R) is false.
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Assertion (A) is false, but Reason (R) is true.
3.
The conversion of phenol to salicylic acid can be accomplished by- Reimer-Tiemann reaction
- Friedel-Crafts reaction
- Kolbe reaction
- Coupling reaction
4.
The reaction $R$ -OH + Na $\longrightarrow$ RO$^-$ Na$^+$ + $\frac{1}{2}$ H$_2$ (g) suggests that alcohols are:- Acidic
- Basic
- Neutral
- Amphoteric
5.
Phenol reacts with Bromine (Br$_2$) water to form:- 2,4-dibromophenol
- 2-bromophenol
- 2,4,6-tribromophenol
- 4-bromophenol
6.
Alkenes are formed by heating alcohols with conc. H$_2$SO$_4$. The first step in the reaction is:- formation of carbocation
- formation of ester
- protonation of alcohol molecule
- elimination of water
7.
Assertion (A): A mixture of o-nitrophenol and p-nitrophenol can be separated by steam distillation.
Reason (R): o-nitrophenol is steam volatile due to intermolecular hydrogen bonding.- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
8.
The reaction
suggests that phenol is :- Basic
- Neutral
- Acidic
- Amphoteric
9.
Assertion (A): p-nitrophenol is less acidic than phenol.
Reason (R): Nitro group is electron-withdrawing and helps in the stabilization of p-nitrophenoxide ion.- Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
10.
At low temperature, phenol reacts with Br$_2$ in CS$_2$ to form:- 2,4,6-Tribromophenol
- p-Bromophenol
- o-and p-Bromophenol
- 2,4,4-Dibromophenol
11.
In the reaction R–OH + HCl $\xrightarrow{\text{ZnCl}_2}$ RCl + H$_2$O, what is the correct order of reactivity of alcohols?
- 1$^\circ$ $<$ 2$^\circ$ $<$ 3$^\circ$
- 2$^\circ$ $<$ 1$^\circ$ $<$ 3$^\circ$
- 3$^\circ$ $>$ 1$^\circ$ $<$ 2$^\circ$
- 1$^\circ$ $>$ 2$^\circ$ $>$ 3$^\circ$
12.
Nucleophilic addition of Grignard reagent to ketones followed by hydrolysis with dilute acids forms:- Alkene
- Primary alcohol
- Tertiary alcohol
- Secondary alcohol
13.
What will be formed after oxidation reaction of secondary alcohol with chromic anhydride (CrO$_3$)?- Aldehyde
- Ketone
- Carboxylic acid
- Ester
14.
What will be formed after oxidation of secondary alcohol with chromic anhydride (CrO3)?- Aldehyde
- Ketone
- Carboxylic acid
- Ester
15.
Arrange the following compounds in increasing order of their boiling points:
- (ii) < (i) < (iii)
- (iii) < (i) < (ii)
- (i) < (ii) < (iii)
- (iii) < (ii) < (i)
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