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Understanding the chapter-wise weightage for the JEE Main exam can help you prioritize topics effectively. Below is a breakdown of the approximate weightage for Class 11 and Class 12 chapters in Physics, Chemistry, and Mathematics:

Physics:

• Class 11 Topics:

Kinematics: Approximately 3.3%

Laws of Motion: Approximately 6.6%

Work, Energy, and Power: Approximately 6.6%

Rotational Motion: Approximately 6.6%

Gravitation: Approximately 3.3%

Thermodynamics: Approximately 6.6%

Waves: Approximately 3.3%

• Class 12 Topics:

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Electrostatics: Approximately 9.9%

Current Electricity: Approximately 9.9%

Magnetism: Approximately 6.6%

Optics: Approximately 9.9%

Modern Physics: Approximately 15.9%

Chemistry:

• Class 11 Topics:

Mole Concept: Approximately 3.3%

Chemical Bonding: Approximately 6.6%

Thermodynamics: Approximately 6.6%

Equilibrium: Approximately 6.6%

Redox Reactions: Approximately 3.3%

• Class 12 Topics:

Solid State: Approximately 3.3%

Solutions: Approximately 3.3%

Electrochemistry: Approximately 3.3%

Chemical Kinetics: Approximately 3.3%

Coordination Compounds: Approximately 10%

Organic Chemistry (various topics): Each approximately 3.3%

Mathematics:

Class 11 Topics:

Sets, Relations, and Functions: Approximately 3.3%

Trigonometry: Approximately 3.3%

Sequences and Series: Approximately 3.3%

Permutations and Combinations: Approximately 3.3%

Binomial Theorem: Approximately 3.3%

• Class 12 Topics:

Matrices and Determinants: Approximately 6.6%

Limits, Continuity, and Differentiability: Approximately 10%

Integral Calculus: Approximately 10%

Differential Equations: Approximately 3.3%

Vector Algebra: Approximately 6.6%

Three-Dimensional Geometry: Approximately 6.6%

Please note that these percentages are approximate and based on previous years' trends. The actual weightage can vary in the exam. It's essential to have a comprehensive understanding of all topics for a well-rounded preparation.