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JEE Main Chemistry — Chapter-wise Weightage
775 questions from 31 papers (2025–2026): how many questions each chapter gave every year, its share of all questions, its share in the latest 5 years, and questions per paper. Tap a column heading to sort.
| Chapter | 2026 | 2025 | Total | Share | Last 5 yrs | Per paper | 2026 trend |
|---|---|---|---|---|---|---|---|
| Physical Chemistry | 170 | 113 | 283 | 37% | 37% | 9.1 | |
| Some Basic Concepts of Chemistry | 18 | 17 | 35 | 4.5% | 4.5% | 1.1 | 3.79% ↓33.1% |
| Structure of Atom | 26 | 13 | 39 | 5.0% | 5.0% | 1.3 | 5.47% ↑26.3% |
| States of Matter | · | 1 | 1 | 0.1% | 0.1% | 0.0 | 0% ↓100% |
| Thermodynamics | 21 | 19 | 40 | 5.2% | 5.2% | 1.3 | 4.42% ↓30.2% |
| Equilibrium | 28 | 14 | 42 | 5.4% | 5.4% | 1.4 | 5.89% ↑26.3% |
| Redox Reactions | 6 | 1 | 7 | 0.9% | 0.9% | 0.2 | 1.26% ↑278.9% |
| Solutions | 23 | 16 | 39 | 5.0% | 5.0% | 1.3 | 4.84% ↓9.2% |
| Electrochemistry | 21 | 15 | 36 | 4.6% | 4.6% | 1.2 | 4.42% ↓11.6% |
| Chemical Kinetics | 27 | 17 | 44 | 5.7% | 5.7% | 1.4 | 5.68% ↑0.3% |
| Inorganic Chemistry | 117 | 77 | 194 | 25% | 25% | 6.3 | |
| Classification of Elements and Periodicity in Properties | 20 | 8 | 28 | 3.6% | 3.6% | 0.9 | 4.21% ↑57.9% |
| Chemical Bonding and Molecular Structure | 22 | 13 | 35 | 4.5% | 4.5% | 1.1 | 4.63% ↑6.9% |
| p-Block Elements (Group 13 & 14) | 8 | 9 | 17 | 2.2% | 2.2% | 0.5 | 1.68% ↓43.9% |
| p-Block Elements (Group 15–18) | 10 | 6 | 16 | 2.1% | 2.1% | 0.5 | 2.11% ↑5.3% |
| d- and f-Block Elements | 24 | 18 | 42 | 5.4% | 5.4% | 1.4 | 5.05% ↓15.8% |
| Coordination Compounds | 33 | 23 | 56 | 7.2% | 7.2% | 1.8 | 6.95% ↓9.4% |
| Organic Chemistry | 188 | 110 | 298 | 38% | 38% | 9.6 | |
| Organic Chemistry – Some Basic Principles and Techniques | 21 | 16 | 37 | 4.8% | 4.8% | 1.2 | 4.42% ↓17.1% |
| Isomerism | 9 | 5 | 14 | 1.8% | 1.8% | 0.5 | 1.89% ↑13.7% |
| Hydrocarbons | 20 | 11 | 31 | 4.0% | 4.0% | 1.0 | 4.21% ↑14.8% |
| Haloalkanes and Haloarenes | 15 | 11 | 26 | 3.4% | 3.4% | 0.8 | 3.16% ↓13.9% |
| Alcohols, Phenols and Ethers | 13 | 5 | 18 | 2.3% | 2.3% | 0.6 | 2.74% ↑64.2% |
| Aldehydes, Ketones and Carboxylic Acids | 24 | 16 | 40 | 5.2% | 5.2% | 1.3 | 5.05% ↓5.3% |
| Amines | 29 | 11 | 40 | 5.2% | 5.2% | 1.3 | 6.11% ↑66.5% |
| Biomolecules | 22 | 14 | 36 | 4.6% | 4.6% | 1.2 | 4.63% ↓0.8% |
| Principles Related to Practical Chemistry | 35 | 21 | 56 | 7.2% | 7.2% | 1.8 | 7.37% ↑5.3% |
Papers per year: 2026: 19, 2025: 12. Red = 2 or more questions per paper that year. Share = this chapter's questions ÷ all Chemistry questions in the bank. Based on past papers; it updates as more papers are added.
Most asked topics
How to use this
- Start with chapters that have a high Last 5 yrs share — the syllabus and paper style change, so recent years matter most.
- A chapter with 1+ question per paper is a must-do: it comes in every shift.
- Then practise the most asked topics above — each link opens exactly those PYQs.