You can check the JEE Main syllabus subject wise which comprises of syllabus of Physics, Chemistry and mathematics .

You have to prepare for each subject in order to score well in the examination.

You may use NCERT books in order to prepare for JEE Main . Here i have mentioned some important topics of syllabus from each subject:

Mathematics :

Sets, Relations & Functions, Matrices & Determinants, Permutations & Combinations, Complex Numbers & Quadratic Equations, Binomial Theorem, Mathematical Induction, Limit, Sequences & Series, Differential Equations, Integral Calculus, Continuity & Differentiability, Three Dimensional Geometry, Co-ordinate Geometry, Statistics & Probability, Vector Algebra, Mathematical Reasoning and Trigonometry.

Chemistry Syllabus:

Physical Chemistry: Some Basic concepts in Chemistry, States of Matter, Chemical Bonding & Molecular Structure, Atomic Structure, Solutions, Redox Reactions & Electrochemistry, Equilibrium, Chemical Thermodynamics, Chemical Kinetics, Surface Chemistry, etc.

I norganic Chemistry: General Principles & Process of Isolation of Metals, Hydrogen, p – Block Elements, s – Block Element, Co-ordination Compounds, d – and f – Block Elements, Classification of Elements & Periodicity in Properties, Environmental Chemistry, etc.

Organic Chemistry : Some Basic Principles of Organic Chemistry, Organic Compounds Containing Halogens, Purification & Characterization of Organic Compounds, Hydrocarbons, Polymers, Organic Compounds Containing Nitrogen, Organic Compounds Containing Oxygen, Bio Molecules, Principles Related to Practical Chemistry, Chemistry in Everyday Life, etc.

Physics Syllabus:

Laws of Motion, Kinematics, Work, Energy & Power, Gravitation, Rotational Motion, Physics & Measurement, Properties of Solids & Liquids, Thermodynamics, Electrostatics, Oscillations & Waves, Kinetic Theory of Gases, Magnetic Effects of Current & Magnetism, Electromagnetic Induction & Alternating Currents, Current Electricity, Optics, Electromagnetic Waves, Dual Nature of Matter & Radiation, Electronic Devices, Atoms & Nuclei, Communication Systems, etc.