NEET Chemistry chapter-wise weightage 2020–2026

This page ranks all 31 NEET Chemistry chapters by how many questions they produced across NEET 2020–2026 and Re-NEET 2026 — 398 questions in total. The five highest-weightage chapters (Aldehydes, Ketones and Carboxylic Acids, Coordination Compounds, The d and f-Block Elements, Hydrocarbons and Organic Chemistry: Some Basic Principles and Techniques) account for 117 of them, 29% of the subject.

By difficulty, 27% of the tagged Chemistry questions were easy, 50% medium and 23% hard. Open any chapter for its topic-wise breakdown, the papers each topic appeared in, and the topics that have been asked most recently.

Practise NEET Chemistry PYQs

Chemistry questions per paper

NEET Chemistry: questions tagged in each paper, 2020–2026 (R = Re-NEET 2026)

All 31 chapters ranked by weightage

#ChapterQsShareDifficulty (E · M · H)
1Aldehydes, Ketones and Carboxylic Acids266.5%

2 · 13 · 11

2Coordination Compounds266.5%

10 · 11 · 5

3The d and f-Block Elements235.8%

5 · 16 · 2

4Hydrocarbons215.3%

5 · 11 · 5

5Organic Chemistry: Some Basic Principles and Techniques215.3%

7 · 11 · 3

6Chemical Bonding and Molecular Structure194.8%

7 · 6 · 6

7Chemical Kinetics194.8%

7 · 7 · 5

8Equilibrium194.8%

4 · 9 · 6

9Amines184.5%

2 · 13 · 3

10Some Basic Concepts of Chemistry174.3%

4 · 7 · 6

11Thermodynamics164%

3 · 7 · 6

12Electrochemistry153.8%

2 · 6 · 7

13Biomolecules143.5%

4 · 9 · 1

14Solutions143.5%

3 · 5 · 6

15Structure of Atom133.3%

4 · 6 · 3

16The p-Block Elements (XII)123%

5 · 5 · 2

17Alcohols, Phenols and Ethers112.8%

2 · 8 · 1

18Classification of Elements and Periodicity in Properties112.8%

4 · 4 · 3

19Haloalkanes and Haloarenes112.8%

6 · 4 · 1

20The p-Block Elements112.8%

4 · 7 · 0

21The s-Block Elements102.5%

4 · 4 · 2

22Redox Reactions82%

2 · 4 · 2

23General Principles and Processes of Isolation of Elements71.8%

2 · 5 · 0

24States of Matter71.8%

2 · 4 · 1

25The Solid State71.8%

2 · 2 · 3

26Surface Chemistry51.3%

1 · 3 · 1

27Hydrogen41%

0 · 4 · 0

28Polymers41%

1 · 2 · 1

29Chemistry in Everyday Life30.8%

1 · 1 · 1

30Environmental Chemistry30.8%

2 · 1 · 0

31Principles of Qualitative Analysis30.8%

0 · 3 · 0

Frequently asked questions

Which is the most important chapter in NEET Chemistry?

By past weightage, Aldehydes, Ketones and Carboxylic Acids leads with 26 questions (6.5%). The top five are Aldehydes, Ketones and Carboxylic Acids (26), Coordination Compounds (26), The d and f-Block Elements (23), Hydrocarbons (21) and Organic Chemistry: Some Basic Principles and Techniques (21).

How many Chemistry questions were asked in each NEET paper?

NEET 2020: 61; NEET 2021: 50; NEET 2022: 52; NEET 2023: 50; NEET 2024: 50; NEET 2025: 45; NEET 2026: 45; Re-NEET 2026: 45. These are the questions Edurack has tagged to NCERT chapters, so they can differ slightly from the printed paper.

Which Chemistry chapters are easiest to score from?

Among chapters with at least 8 questions, the highest share of easy questions was in Haloalkanes and Haloarenes (55% easy), The p-Block Elements (XII) (42% easy) and The s-Block Elements (40% easy).

Which Chemistry chapters have the most difficult questions?

Among chapters with at least 8 questions, the highest share of hard questions was in Electrochemistry (47% hard), Solutions (43% hard) and Aldehydes, Ketones and Carboxylic Acids (42% hard).

Are these NEET Chemistry weightage numbers official?

Counts come from Edurack's tagged set of NEET papers 2020–2026 (including Re-NEET 2026), mapped to NCERT chapters and topics. Use them as a trend guide — past frequency doesn't guarantee what a future paper will ask.

Other subjects

Counts come from Edurack's tagged set of NEET papers 2020–2026 (including Re-NEET 2026), mapped to NCERT chapters and topics. Use them as a trend guide — past frequency doesn't guarantee what a future paper will ask.