Updated for JEE Main 2027
JEE Main Chemistry Chapter-wise Weightage
All 20 Chemistry chapters ranked by expected marks, computed from 4,543 solved JEE Main PYQs (2023–2026). The top 10 chapters cover about 60% of Chemistry marks; Class 11 chapters carry ~51% and Class 12 ~49%.
| # | Chapter | Class | PYQs | Expected marks | Share of Chemistry marks |
|---|---|---|---|---|---|
| 1 | Coordination Compounds | 12 | 112 | ~9 | 7.2% |
| 2 | Atomic Structure | 11 | 68 | ~8 | 6.4% |
| 3 | Chemical Bonding & Molecular Structure | 11 | 74 | ~8 | 6.4% |
| 4 | Organic Compounds containing Oxygen | 12 | 102 | ~8 | 6.4% |
| 5 | Redox Reactions & Electrochemistry | 12 | 97 | ~8 | 6.4% |
| 6 | Basic Principles of Organic Chemistry | 11 | 94 | ~7 | 5.6% |
| 7 | Biomolecules | 12 | 55 | ~7 | 5.6% |
| 8 | Chemical Thermodynamics | 11 | 70 | ~7 | 5.6% |
| 9 | Equilibrium | 11 | 63 | ~7 | 5.6% |
| 10 | d- & f-Block Elements | 12 | 59 | ~6 | 4.8% |
| 11 | Hydrocarbons | 11 | 69 | ~6 | 4.8% |
| 12 | p-Block Elements | 12 | 45 | ~6 | 4.8% |
| 13 | Principles of Practical Chemistry | 11 | 42 | ~6 | 4.8% |
| 14 | Solutions | 12 | 79 | ~6 | 4.8% |
| 15 | Some Basic Concepts of Chemistry | 11 | 71 | ~6 | 4.8% |
| 16 | Chemical Kinetics | 12 | 65 | ~5 | 4% |
| 17 | Classification of Elements & Periodicity | 11 | 65 | ~5 | 4% |
| 18 | Organic Compounds containing Halogens | 12 | 39 | ~4 | 3.2% |
| 19 | Purification & Characterisation of Organic Compounds | 11 | 41 | ~4 | 3.2% |
| 20 | Organic Compounds containing Nitrogen | 12 | 30 | ~2 | 1.6% |
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