Electrochemistry don't have much weightage in JEE Main exam.

To check the weightage for all the topics you can refer below-

PHYSICS :-

THE MOST IMPORTANT CHAPTER ( DO OR DIE ) CHAPTERS

    Electrostatics - around 9%
    Heat and Thermodynamics -around 8%
    Rotational Motion -around 7%
    Wave Motion -7%
    Laws of Motion -around 6%
    Simple Harmonic Motion -around 5%
    Wave Optics-5%
    Units Dimensions and Errors -around 4%
    Work Power and Energy -around 4%

IMPORTANT TOPICS (Should do) CHAPTERS

    Modern Physics -around 4%
    Current Electricity -around 4%
    Electromagnetic Induction -around 3%
    Physics of Nucleus -around 3%
    Fluids -around 2%
    Gravitation -around 2%
    Elasticity -around 2%
    Solids and Semi conductor Devices -around 2%
    Center of Mass , Momentum and impulse -around 2%
    Kinetic gases -around 2%
    Radioactivity -around 4%

IF YOU HAVE TIME GO THROUGH THESE TOPICS

    AC,
    EMW (Electro Magnetic Waves)
    Vectors
    2D
    Circular motion
    Capacitance
    Kinematics

CHEMISTRY:-

DO OR DIE CHAPTERS

    General Organic Chem -around 9%
    Alcohol Phenols and Ethers -around 7%
    Redox Reactions -around 6%
    Chemical Bonding -around 5%
    Coordination Chem -around 5%
    Inorganic Chem -around 10%
    Aldehyde and Ketones -around 5%
    Solutions -around 5%
    Solid State -around 5%

IMPORTANT TOPICS

    Chemical Thermodynamics -around 5%
    Ionic Equilibrium -around 3%
    Chemical Equilibrium -around 3%
    Surface Chemistry -around 3%
    Periodic Classifications -around 2%
    Atomic Structure -around 2%
    Metallurgy -around 2%
    Gaseous State -around 2%
    D and F block -around 2%
    Polymers -around 2%

OTHERS:-

    Chemical kinetics
    Biomolecules
    Electro chem
    other organic topics

MATHS:-

Do OR DIE TOPICS

    Probability -around 7%
    Definite Integration -around 6%
    Circles -around 5%
    Vectors -around 5%
    Theory of Equations -around 5%
    Sequences and Series -around 5%
    Complex Numbers -around 5%
    3D -around 5%
    Matrices and Determinants -around 4%
    Differential Coefficient -around 4%
    Sets Relations and Functions -around 4%

IMPORTANT TOPICS

    Application of Derivatives -around 4%
    Trigonometry -around 5%
    Parabola -around 3%
    Limits -around 3%
    Heights and Distances -around 2%
    P&C -around 2%
    Straight Lines -around 2%
    Areas -around 2%
    Differential Equations -around 2%
    Continuity and Different-ability -around 2%

LEAST IMP.

    Other Conics
    Binomial Theorem
    Mathematical Induction
    Prop of Triangles
    Statistics
    Pairs of St.Lines

THIS IS APPROXIMATE PERCENTAGE AND READ OTHER TOPICS CONCEPTS AND BE THOROUGH WITH THE CONCEPTS OF EVERY CHAPTER .

ALL THE BEST

Joint Entrance Examination (Main)

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