The JEE Main 2025 Chemistry syllabus is extensive, covering a wide range of topics. Here's a brief overview:

Physical Chemistry:

• States of Matter: Gases, Liquids, Solids
• Thermodynamics: First Law, Second Law, Enthalpy, Entropy, Free Energy
• Equilibrium: Ionic Equilibrium, Acid-Base Equilibrium, Solubility Product
• Electrochemistry: Electrolysis, Conductance, Batteries
• Chemical Kinetics: Rate Laws, Order, Molecularity, Arrhenius Equation
• Surface Chemistry: Adsorption, Colloids

Inorganic Chemistry:

• Periodic Classification of Elements: Periodic Trends, Groups, Periods
• General Principles of Metallurgy: Extraction of Metals, Refining
• Hydrogen: Preparation, Properties, Compounds
• s-Block Elements: Alkali Metals, Alkaline Earth Metals
• p-Block Elements: Groups 13-18 (Boron, Carbon, Nitrogen, Oxygen, Halogens, Noble Gases)
• d-Block Elements: Transition Metals, Coordination Compounds
• f-Block Elements: Lanthanoids, Actinoids

Organic Chemistry:

• Basic Concepts: Isomerism, Nomenclature, Bonding
• Hydrocarbons: Alkanes, Alkenes, Alkynes, Aromatic Hydrocarbons
• Haloalkanes and Haloarenes: Reactions, Properties
• Alcohols, Phenols, and Ethers: Reactions, Properties
• Aldehydes, Ketones, and Carboxylic Acids: Reactions, Properties
• Amines: Reactions, Properties
• Biomolecules: Carbohydrates, Proteins, Amino Acids, Nucleic Acids
• Polymers: Types, Properties
• Chemistry in Everyday Life: Drugs, Soaps, Detergents

This is a general outline. For a more detailed syllabus, refer to the official JEE Main information brochure.