JEE Advanced Chemistry chapter-wise weightage
Questions per paper for every Chemistry chapter in JEE Advanced, from 10 papers from 2022–2026. The heaviest chapters were Alcohols, Phenols and Ethers, Aldehydes and Ketones, p-block Elements.
| Chapter | Questions per paper | Share of Chemistry | 2026 | 2025 | 2024 | 2023 | 2022 |
|---|---|---|---|---|---|---|---|
| Alcohols, Phenols and Ethers | 1.7 | 10.0% | 0.0 | 1.5 | 2.5 | 3.0 | 1.5 |
| Aldehydes and Ketones | 1.6 | 9.4% | 2.0 | 1.0 | 2.0 | 1.5 | 1.5 |
| p-block Elements | 1.6 | 9.4% | 1.0 | 2.0 | 1.5 | 0.5 | 3.0 |
| Chemical Bonding and Molecular Structure | 1.5 | 8.8% | 2.0 | 1.0 | 2.0 | 1.0 | 1.5 |
| Coordination Compounds | 1.2 | 7.1% | 1.0 | 1.0 | 2.5 | 1.0 | 0.5 |
| Chemical Thermodynamics & Energetics | 1.1 | 6.5% | 1.0 | 1.0 | 0.5 | 1.5 | 1.5 |
| Biomolecules | 0.8 | 4.7% | 1.0 | 0.5 | 1.5 | 0.5 | 0.5 |
| Liquid Solutions & Colligative Properties | 0.7 | 4.1% | 1.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Alkyl Halides (Haloalkanes & Haloarenes) | 0.6 | 3.5% | 0.0 | 1.0 | 0.0 | 1.5 | 0.5 |
| Atomic Structure | 0.6 | 3.5% | 1.0 | 0.0 | 1.5 | 0.5 | 0.0 |
| Electrochemistry | 0.5 | 2.9% | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Hydrocarbons (Alkanes, Alkenes, Alkynes) | 0.5 | 2.9% | 1.5 | 0.0 | 0.0 | 0.0 | 1.0 |
| Ionic Equilibrium | 0.5 | 2.9% | 0.0 | 1.0 | 0.0 | 0.5 | 1.0 |
| Amines, Nitro, Diazonium Salts | 0.4 | 2.4% | 0.5 | 1.0 | 0.0 | 0.0 | 0.5 |
| Chemical Kinetics | 0.4 | 2.4% | 1.0 | 0.5 | 0.0 | 0.0 | 0.5 |
| Gaseous State (Real Gases Focus) | 0.4 | 2.4% | 0.5 | 0.5 | 0.5 | 0.5 | 0.0 |
| Surface Chemistry | 0.4 | 2.4% | 0.5 | 0.5 | 0.0 | 0.5 | 0.5 |
| Chemical Equilibrium | 0.3 | 1.8% | 0.0 | 0.0 | 0.5 | 1.0 | 0.0 |
| Metallurgy & Isolation of Metals | 0.3 | 1.8% | 0.0 | 0.0 | 0.0 | 0.5 | 1.0 |
| Mole Concept & Stoichiometry | 0.3 | 1.8% | 0.0 | 0.0 | 0.5 | 0.5 | 0.5 |
| Polymers | 0.3 | 1.8% | 1.0 | 0.0 | 0.0 | 0.0 | 0.5 |
| Solid State | 0.3 | 1.8% | 0.0 | 0.5 | 0.0 | 0.5 | 0.5 |
| d & f-block Elements | 0.3 | 1.8% | 0.0 | 0.5 | 0.0 | 0.5 | 0.5 |
| Analytical Qualitative Salt Analysis | 0.2 | 1.2% | 0.0 | 1.0 | 0.0 | 0.0 | 0.0 |
| Redox Reactions & Equivalent Concept | 0.2 | 1.2% | 0.0 | 0.0 | 0.5 | 0.5 | 0.0 |
| Classification of Elements and Periodicity in Properties | 0.1 | 0.6% | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 |
| General Organic Chemistry | 0.1 | 0.6% | 0.0 | 0.5 | 0.0 | 0.0 | 0.0 |
| Isomerism | 0.1 | 0.6% | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 |