# Aldehydes, Ketones and Carboxylic Acids CBSE Class 12 PYQs

> Aldehydes, Ketones and Carboxylic Acids CBSE Class 12 PYQs: all 23 questions from 50 official papers (2016–2026), by concept. Asked in 10 of 10 years.

Source: https://previousyearquestions.app/cbse-class-12/chapters/chem-carbonyl/

Explore: <a href="/cbse-class-12/chapters/">All CBSE Class 12 chapters</a> · <a href="/cbse-class-12/chapters/chemistry/">CBSE Class 12 Chemistry PYQs</a> · <a href="/cbse-class-12/">CBSE Class 12 hub</a> · <a href="/cbse-class-12/syllabus-pattern/">Syllabus & pattern</a> · <a href="/cbse-class-12/2026/">Class 12 2026</a>

## Answer first

Aldehydes, Ketones and Carboxylic Acids PYQs (previous year questions) for CBSE Class 12: Aldehydes, Ketones and Carboxylic Acids (Chemistry) had **23 questions** across the 50 official CBSE Class 12 papers we tagged (2016–2026), and appeared in 10 of them. Asked in 10 of 10 years. The concepts asked in the most papers: Carbonyl Reactions, Carbonyl Identification, Nucleophilic Addition.

## Year-wise question count

<ChapterQuestions exam="cbse-class-12" chapter="chem-carbonyl" part="trend" />

## Most-asked concepts

Sorted by the number of papers a concept appeared in.

<ChapterQuestions exam="cbse-class-12" chapter="chem-carbonyl" part="concepts" />

## How to practise Aldehydes, Ketones and Carboxylic Acids PYQs

1. Start with the concepts at the top of the table. They have come back the most.
2. Solve one year's Aldehydes, Ketones and Carboxylic Acids questions from the official PDF against the clock, then check the answer listed below.
3. Log every miss as a concept gap, a calculation slip or a misread. Each needs a different fix.
4. Once a concept is clean in two papers, move to the next. Then sit a full paper from the year pages.

## Questions by year

Each line gives the question number and paper, type, concept, our one-line summary, with a link to the official PDF.

<ChapterQuestions exam="cbse-class-12" chapter="chem-carbonyl" part="questions" />

## Other Chemistry chapters

- [The Solid State PYQs](/cbse-class-12/chapters/chem-solid-state/)
- [Solutions PYQs](/cbse-class-12/chapters/chem-solutions/)
- [Electrochemistry PYQs](/cbse-class-12/chapters/chem-electrochemistry/)
- [Chemical Kinetics PYQs](/cbse-class-12/chapters/chem-kinetics/)
- [Surface Chemistry PYQs](/cbse-class-12/chapters/chem-surface/)
- [General Principles of Isolation of Elements PYQs](/cbse-class-12/chapters/chem-metallurgy/)
- [The p-Block Elements PYQs](/cbse-class-12/chapters/chem-p-block/)
- [The d- and f-Block Elements PYQs](/cbse-class-12/chapters/chem-d-f-block/)
- [Coordination Compounds PYQs](/cbse-class-12/chapters/chem-coordination/)
- [Haloalkanes and Haloarenes PYQs](/cbse-class-12/chapters/chem-haloalkanes/)
- [Alcohols, Phenols and Ethers PYQs](/cbse-class-12/chapters/chem-alcohols/)
- [Amines PYQs](/cbse-class-12/chapters/chem-amines/)
- [Biomolecules PYQs](/cbse-class-12/chapters/chem-biomolecules/)
- [Polymers PYQs](/cbse-class-12/chapters/chem-polymers/)
- [Chemistry in Everyday Life PYQs](/cbse-class-12/chapters/chem-everyday/)

## FAQ

### How many Aldehydes, Ketones and Carboxylic Acids questions come in CBSE Class 12?
In the official papers we tagged: 2 in 2026, 3 in 2025, 5 in 2024, 2 in 2023, 2 in 2022, 3 in 2020, 2 in 2019, 2 in 2018, 1 in 2017 and 1 in 2016. That is 23 questions in all, about 8% of Chemistry.

### Which Aldehydes, Ketones and Carboxylic Acids topics repeat in CBSE Class 12?
Asked in the most papers: Carbonyl Reactions, Carbonyl Identification, Nucleophilic Addition. The concept table lists every one with its count.

### Are these official CBSE Class 12 questions?
Yes. Every question is from an official CBSE Class 12 paper hosted on our year pages. The one-line summaries are ours; open the PDF linked beside each question for the full text.