JEE Main 2025 Chemistry chapter-wise analysis

JEE Main 2025 had 596 Chemistry questions across all shifts. The three chapters with the most were Some Basic Principles of Organic Chemistry (57, 9.6%), Organic Compounds Containing Oxygen (45, 7.6%) and Redox Reactions and Electrochemistry (45, 7.6%).

Against 2024, Some Basic Principles of Organic Chemistry (+7.8 points), Hydrocarbons (+3.1 points) and Chemical Bonding and Molecular Structure (+2.9 points) gained share while p-Block Elements (-4.1 points), Solutions (-2.4 points) and Organic Compounds Containing Nitrogen (-2.3 points) lost share.

The most repeated concepts that year were Mole Concept and Molar Mass (15), Magnetic Moment (Valence Bond Theory) (8) and Percentage Composition and Equivalent Weight (8).

Questions counted

596

across all shifts

Chapters asked

of 28 in the dataset

Most asked

Some Basic Principles of Organic Chemistry

57 Qs (9.6%)

Other years:

2022 2023 202420252026

Chemistry chapters in 2025

#	Chapter	Questions	Share	Share last year	Change (pts)	Now
1	Some Basic Principles of Organic Chemistry	57	9.6%	1.8%	+7.8	↑ Rising
2	Organic Compounds Containing Oxygen	45	7.6%	7.3%	+0.3	↓ Falling
3	Redox Reactions and Electrochemistry	45	7.6%	6.8%	+0.8	→ Steady
4	Chemical Bonding and Molecular Structure	43	7.2%	4.3%	+2.9	→ Steady
5	Hydrocarbons	42	7%	3.9%	+3.1	→ Steady
6	Coordination Compounds	40	6.7%	8.7%	-2	↑ Rising
7	Atomic Structure	32	5.4%	4.8%	+0.6	→ Steady
8	p-Block Elements	30	5%	9.1%	-4.1	→ Steady
9	d- and f-Block Elements	29	4.9%	5.5%	-0.6	→ Steady
10	Solutions	28	4.7%	7.1%	-2.4	→ Steady
11	Some Basic Concepts in Chemistry	27	4.5%	6.2%	-1.7	→ Steady
12	Equilibrium	24	4%	5%	-1	→ Steady
13	Chemical Thermodynamics	22	3.7%	5.9%	-2.2	→ Steady
14	Classification of Elements and Periodicity	22	3.7%	3.7%	0	↑ Rising
15	Purification and Characterisation of Organic Compounds	22	3.7%	3%	+0.7	→ Steady
16	Chemical Kinetics	20	3.4%	4.3%	-0.9	→ Steady
17	Organic Compounds Containing Halogens	19	3.2%	2.3%	+0.9	→ Steady
18	Biomolecules	18	3%	3.7%	-0.7	→ Steady
19	Principles Related to Practical Chemistry	16	2.7%	1.8%	+0.9	→ Steady
20	Organic Compounds Containing Nitrogen	15	2.5%	4.8%	-2.3	→ Steady

Most repeated Chemistry concepts in 2025

1Mole Concept and Molar Mass15 Qs
2Magnetic Moment (Valence Bond Theory)8 Qs
3Percentage Composition and Equivalent Weight8 Qs
4First Order Reaction7 Qs
5Solubility and Solubility Product6 Qs
6Concentration Terms5 Qs
7Depression in Freezing Point5 Qs
8Magnetic Properties and Character5 Qs

Chemistry chapter-wise weightage 2022–2026 → Chemistry syllabus 2026 →

Frequently asked questions

Which Chemistry chapter had the most questions in JEE Main 2025?

Some Basic Principles of Organic Chemistry, with 57 of 596 questions (9.6%) across all shifts.

How many Chemistry questions are counted for JEE Main 2025?

596, counted across all shifts of the year.

Practise JEE Main Chemistry PYQs

Solve JEE previous-year questions with solutions on Edurack.

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More JEE Main guides

Chapter-wise weightage

Every chapter ranked by share of questions.

JEE Main syllabus 2026

Unit-wise topics for Paper 1, 2A and 2B.

High-weightage chapters

How few chapters cover most of the paper.

Rising and falling chapters

Which chapters are gaining or losing share.

Removed chapters

Chapters not in the 2026 syllabus.

Most repeated concepts

The concepts JEE Main asks most.

In the source data the Chemistry counts for 2024 and 2025 look unevenly split between the two years, so read those two years together rather than as separate trends.

Counts are compiled from Edurack's JEE Main last five-year analysis (2022–2026) and count questions across all shifts and sessions of each year. Because the number of shifts changes every year, trends compare each chapter's share of the paper among chapters still in the syllabus, not raw counts. Past frequency is a trend guide, not a prediction. Chapters marked "not in syllabus" are absent from NTA's JEE Main 2026 syllabus; always check the latest NTA syllabus before skipping a chapter.