# Chemistry NDA PYQ Topic Wise (2016–2026)

> Chemistry NDA PYQs: all 322 questions from 42 official papers (2016–2026), by concept with official answers. Asked in 11 of 11 years.

Source: https://previousyearquestions.app/nda/topics/gk-chemistry/

Explore: <a href="/nda/topics/">All NDA topics</a> · <a href="/nda/topics/general-knowledge/">NDA General Knowledge PYQs</a> · <a href="/nda/">NDA hub</a> · <a href="/nda/syllabus-pattern/">Syllabus & pattern</a> · <a href="/nda/2026/">NDA 2026</a>

## Answer first

Chemistry PYQs (previous year questions) for NDA: Chemistry (General Knowledge) had **322 questions** across the 42 official NDA papers we tagged (2016–2026), and appeared in 21 of them. Asked in 11 of 11 years. The concepts asked in the most papers: Atomic Structure, Chemical Reactions, Acids and Bases.

## Year-wise question count

<ChapterQuestions exam="nda" chapter="gk-chemistry" part="trend" />

## Most-asked concepts

Sorted by the number of papers a concept appeared in.

<ChapterQuestions exam="nda" chapter="gk-chemistry" part="concepts" />

## How to practise Chemistry PYQs

1. Start with the concepts at the top of the table. They have come back the most.
2. Solve one year's Chemistry 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 and the official answer, with a link to the official PDF.

<ChapterQuestions exam="nda" chapter="gk-chemistry" part="questions" />

## Other General Knowledge topics

- [Physics PYQs](/nda/topics/gk-physics/)
- [General Science and Biology PYQs](/nda/topics/gk-biology/)
- [History and Freedom Movement PYQs](/nda/topics/gk-history/)
- [Geography PYQs](/nda/topics/gk-geography/)
- [Polity and Economy PYQs](/nda/topics/gk-polity-economy/)
- [Current Events PYQs](/nda/topics/gk-current-events/)

## FAQ

### How many Chemistry questions come in NDA?
In the official papers we tagged: 30 in 2026 (2 papers), 31 in 2025 (2 papers), 30 in 2024 (2 papers), 33 in 2023 (2 papers), 29 in 2022 (2 papers), 30 in 2021 (2 papers), 17 in 2020 (1 paper), 28 in 2019 (2 papers), 30 in 2018 (2 papers), 29 in 2017 (2 papers) and 35 in 2016 (2 papers). That is 322 questions in all, about 15% of General Knowledge.

### Which Chemistry topics repeat in NDA?
Asked in the most papers: Atomic Structure, Chemical Reactions, Acids and Bases. The concept table lists every one with its count.

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