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Focusing on high-weightage and scoring chapters can enhance your performance in the JEE Main second attempt. Here's a subject-wise breakdown of important chapters:

Physics:

• Modern Physics: Topics like the Photoelectric Effect, Atomic Structure, and Nuclear Physics are frequently tested and can be scoring.

• Electrostatics and Current Electricity: Fundamental concepts such as Coulomb's Law, Electric Fields, and Circuits are essential.

• Magnetism and Electromagnetic Induction: Understanding Magnetic Fields, Faraday's Laws, and Induced EMF is crucial.

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• Optics: Both Ray Optics and Wave Optics are significant, covering lenses, mirrors, and phenomena like interference and diffraction. https://www.careers360.com/

• Thermodynamics and Kinetic Theory: Grasping laws of thermodynamics and molecular theory of gases can be beneficial. https://www.careers360.com/

Chemistry:

• Physical Chemistry:

Chemical and Ionic Equilibrium: Focus on concepts of acids, bases, and solubility product.

Electrochemistry and Thermodynamics: Study galvanic cells, Nernst equation, and Gibbs free energy.

• Organic Chemistry:

General Organic Chemistry (GOC) and Reaction Mechanisms: Understanding electron displacement effects and reaction intermediates is vital.

Hydrocarbons, Haloalkanes, and Haloarenes: Emphasize reaction mechanisms and properties.

Alcohols, Phenols, and Ethers: Study their preparation methods and reactions.

Biomolecules and Polymers: Focus on structures and functions of carbohydrates, proteins, and synthetic polymers.

• Inorganic Chemistry:

Coordination Compounds: Learn about ligands, coordination numbers, and isomerism.

Periodic Table and Chemical Bonding: Understand periodic trends and types of bonds.

Mathematics:

• Algebra:

Complex Numbers and Quadratic Equations: Master operations on complex numbers and solving quadratic equations.

Sequences and Series: Focus on arithmetic and geometric progressions.

Permutation and Combination: Understand counting principles and applications.

Binomial Theorem: Study expansion and general term calculation.

• Calculus:

Limits, Continuity, and Differentiability: Grasp the foundational concepts of calculus. https://www.careers360.com/

Integral Calculus: Practice definite and indefinite integrals and their applications.

Differential Equations: Learn methods of solving first-order equations.

• Coordinate Geometry:

Straight Lines and Circles: Focus on equations, slopes, and geometric interpretations.

Conic Sections (Parabola, Ellipse, Hyperbola): Understand standard equations and properties.

• Trigonometry: Emphasize trigonometric functions, identities, and equations.

• Vector Algebra and Three-Dimensional Geometry: Study vector operations and equations of lines and planes in space.

Prioritizing these chapters can help you focus your preparation effectively. However, ensure a comprehensive understanding of all topics, as the JEE Main exam can include questions from the entire syllabus. Regular practice and solving previous years' question papers will further enhance your readiness.