JEE Main Chemistry chapter-wise weightage

Questions per paper for every Chemistry chapter in JEE Main, from 105 papers from 2022–2026. The heaviest chapters were Chemical Bonding and Molecular Structure, Alcohols, Phenols and Ethers, Coordination Compounds.

Chapter	Questions per paper	Share of Chemistry	2026	2025	2024	2023	2022
Chemical Bonding and Molecular Structure	1.76	7.1%	1.47	1.63	2.15	1.83	1.7
Alcohols, Phenols and Ethers	1.69	6.8%	1.37	1.16	2.0	1.92	1.87
Coordination Compounds	1.69	6.8%	1.74	1.89	1.9	1.88	1.09
d & f-block Elements	1.34	5.4%	1.0	1.11	1.55	1.58	1.39
Aldehydes and Ketones	1.23	4.9%	0.74	1.26	1.2	1.25	1.61
Classification of Elements and Periodicity in Properties	1.11	4.5%	1.21	1.37	1.1	1.17	0.78
Biomolecules	1.07	4.3%	1.0	1.05	1.0	1.38	0.87
Amines, Nitro, Diazonium Salts	1.06	4.2%	1.11	1.0	0.75	1.17	1.22
Chemical Kinetics	1.06	4.2%	1.37	1.37	0.6	0.96	1.04
p-block Elements	1.06	4.2%	0.63	0.58	1.3	1.0	1.65
Alkyl Halides (Haloalkanes & Haloarenes)	1.03	4.1%	1.0	1.16	1.25	1.0	0.78
Mole Concept & Stoichiometry	1.01	4.0%	1.16	1.32	0.85	0.92	0.87
Chemical Thermodynamics & Energetics	1.0	4.0%	1.0	1.47	0.55	0.92	1.09
Electrochemistry	0.99	4.0%	1.11	0.95	1.05	0.92	0.96
Atomic Structure	0.92	3.7%	1.47	1.16	0.55	0.62	0.91
Hydrocarbons (Alkanes, Alkenes, Alkynes)	0.86	3.4%	1.0	0.74	0.9	0.75	0.91
Liquid Solutions & Colligative Properties	0.85	3.4%	0.95	1.05	0.55	0.71	1.0
General Organic Chemistry	0.84	3.4%	1.16	0.79	1.2	0.54	0.61
Ionic Equilibrium	0.84	3.4%	0.74	0.68	0.4	1.08	1.17
Chemical Equilibrium	0.69	2.7%	0.89	0.74	0.4	0.54	0.87
Practical Organic Chemistry (POC)	0.63	2.5%	0.79	0.79	0.45	0.54	0.61
Analytical Qualitative Salt Analysis	0.58	2.3%	0.58	0.42	0.9	0.67	0.35
Carboxylic Acids & Derivatives	0.35	1.4%	0.32	0.21	0.25	0.5	0.43
Classification & Nomenclature	0.34	1.4%	0.21	0.47	0.7	0.12	0.26
Redox Reactions & Equivalent Concept	0.3	1.2%	0.21	0.21	0.3	0.42	0.3
Isomerism	0.23	0.9%	0.26	0.11	0.4	0.17	0.22
Purification & Characterization of Organic Compounds	0.11	0.5%	0.16	0.05	0.3	0.0	0.09
Metallurgy & Isolation of Metals	0.1	0.4%	0.0	0.05	0.2	0.17	0.04
Gaseous State (Real Gases Focus)	0.08	0.3%	0.21	0.11	0.0	0.0	0.09
s-block Elements	0.08	0.3%	0.0	0.0	0.05	0.21	0.09
Organic Reaction Mechanisms & Intermediates	0.06	0.2%	0.11	0.05	0.15	0.0	0.0
Surface Chemistry	0.02	0.1%	0.0	0.0	0.05	0.04	0.0
Chemistry in Everyday Life	0.01	0.0%	0.0	0.0	0.0	0.04	0.0
d and f Block Elements	0.01	0.0%	0.0	0.05	0.0	0.0	0.0