Hello,

Here is a list of important chapters for JEE Mains based on weightage and past trends:

Mathematics:

• Coordinate Geometry
• Calculus (Differential & Integral)
• Algebra (Quadratic Equations, Matrices & Determinants)
• Probability & Permutations
• Trigonometry
• Vector & 3D Geometry
• Complex Numbers

Physics:

• Mechanics (Laws of Motion, Work, Energy, Power)
• Electromagnetism
• Modern Physics
• Optics
• Thermodynamics
• SHM & Waves
• Current Electricity

Chemistry:

• Atomic Structure & Periodic Table
• Chemical Bonding
• Thermodynamics
• Coordination Compounds
• Organic Reactions & Mechanisms
• Electrochemistry
• Solid State & Solutions

Hope you find it useful !