📚 Free NCERT Notes

NCERT Notes for NEET Revision

Chapter-wise key concepts, formulas, and NEET-focused points — distilled from NCERT textbooks to help you revise faster and retain more.

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🔥 High-Weightage Chapters

These chapters appear most frequently in NEET

High Weightage

Physics · Class 11

Motion in a Straight Line

Covers uniform and non-uniform rectilinear motion, equations of kinematics, graphical anal...

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High Weightage

Physics · Class 11

Motion in a Plane

Extends kinematics to two dimensions using vectors. Projectile motion (most heavily tested...

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High Weightage

Physics · Class 11

Laws of Motion

Newton's three laws of motion, free-body diagrams, friction, and dynamics of systems inclu...

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High Weightage

Physics · Class 11

Work, Energy & Power

Work-energy theorem, conservative and non-conservative forces, elastic and inelastic colli...

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High Weightage

Physics · Class 11

Systems of Particles & Rotational Motion

Torque, angular momentum, moment of inertia, the parallel/perpendicular axis theorems, and...

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High Weightage

Physics · Class 11

Gravitation

Newton's law of gravitation, Kepler's three laws, orbital mechanics, escape velocity, vari...

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High Weightage

Physics · Class 11

Thermodynamics

Laws of thermodynamics, thermodynamic processes (isochoric, isobaric, isothermal, adiabati...

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High Weightage

Physics · Class 11

Oscillations

Simple Harmonic Motion (SHM), energy in SHM, simple pendulum and spring-mass system, phase...

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High Weightage

Physics · Class 11

Waves

Wave motion, the general wave equation, standing (stationary) waves in strings and organ p...

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High Weightage

Physics · Class 12

Electric Charges & Fields

Covers quantisation and conservation of charge, Coulomb's law, superposition, and Gauss's ...

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High Weightage

Physics · Class 12

Electrostatic Potential & Capacitance

Electric potential, potential energy, relationship between E and V, capacitors (parallel p...

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High Weightage

Physics · Class 12

Current Electricity

Drift velocity, Ohm's law, resistivity, Kirchhoff's laws, Wheatstone bridge, and potentiom...

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High Weightage

Physics · Class 12

Moving Charges & Magnetism

Biot-Savart law, Ampere's law, force on current in magnetic field, cyclotron, and galvanom...

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High Weightage

Physics · Class 12

Electromagnetic Induction

Faraday's law, Lenz's law, motional EMF, self- and mutual inductance, eddy currents, and t...

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High Weightage

Physics · Class 12

Alternating Current

AC basics (rms, peak), phasors, LCR series circuit (impedance, resonance), power factor, a...

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High Weightage

Physics · Class 12

Ray Optics & Optical Instruments

Reflection (mirrors), refraction (Snell's law, TIR, prisms, lenses), and optical instrumen...

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High Weightage

Physics · Class 12

Wave Optics

Huygens' principle, interference (Young's double slit), diffraction (single slit), and pol...

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High Weightage

Physics · Class 12

Dual Nature of Radiation & Matter

Photoelectric effect, Einstein's photoelectric equation, de Broglie wavelength, Davisson-G...

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High Weightage

Physics · Class 12

Atoms

Rutherford model, Bohr's model of hydrogen atom, energy levels, hydrogen spectrum. ~2-3 NE...

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High Weightage

Physics · Class 12

Nuclei

Nuclear composition, size, binding energy, radioactive decay (α, β, γ), half-life, nuclear...

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High Weightage

Physics · Class 12

Semiconductor Electronics

Energy bands in solids, intrinsic and extrinsic semiconductors, p-n junction diode (forwar...

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⚗️High Weightage

Chemistry · Class 11

Structure of Atom

Atomic models (Thomson, Rutherford, Bohr), quantum mechanical model, quantum numbers, orbi...

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⚗️High Weightage

Chemistry · Class 11

Chemical Bonding & Molecular Structure

Ionic and covalent bonding, Lewis structures, VSEPR theory for molecular geometry, hybridi...

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⚗️High Weightage

Chemistry · Class 11

Thermodynamics

Laws of thermodynamics, enthalpy, Hess's law, entropy, Gibbs free energy, and spontaneity ...

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⚗️High Weightage

Chemistry · Class 11

Equilibrium

Chemical and ionic equilibria: equilibrium constant expressions (Kc, Kp), Le Chatelier's p...

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⚗️High Weightage

Chemistry · Class 11

Organic Chemistry – Some Basic Principles and Techniques

Hybridisation and carbon types, isomerism (structural and stereoisomerism), homologous ser...

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⚗️High Weightage

Chemistry · Class 11

Hydrocarbons

Alkanes (free radical halogenation), alkenes (electrophilic addition, Markovnikov's rule, ...

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⚗️High Weightage

Chemistry · Class 12

Solutions

Types of solutions, concentration units, Raoult's law, colligative properties (vapour pres...

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⚗️High Weightage

Chemistry · Class 12

Electrochemistry

Electrochemical cells (galvanic and electrolytic), electrode potentials (standard reductio...

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⚗️High Weightage

Chemistry · Class 12

Chemical Kinetics

Rate of reaction, order and molecularity, rate laws, integrated rate equations, half-life,...

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⚗️High Weightage

Chemistry · Class 12

Equilibrium

Group 15 (N, P, As, Sb, Bi): nitrogen family; Group 16 (O, S, Se, Te): chalcogens; Group 1...

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⚗️High Weightage

Chemistry · Class 12

The d- and f-Block Elements

Transition elements (d-block, groups 3-12): characteristic properties, variable oxidation ...

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⚗️High Weightage

Chemistry · Class 12

Coordination Compounds

Werner's theory, nomenclature, structure, isomerism, valence bond and crystal field theory...

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⚗️High Weightage

Chemistry · Class 12

Haloalkanes and Haloarenes

Haloalkane preparation, properties, SN1 vs SN2 mechanisms, elimination reactions, Grignard...

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⚗️High Weightage

Chemistry · Class 12

Alcohols, Phenols and Ethers

Classification, preparation, and reactions of alcohols (oxidation, dehydration, Lucas test...

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⚗️High Weightage

Chemistry · Class 12

Aldehydes, Ketones and Carboxylic Acids

Preparation and reactions of aldehydes and ketones (nucleophilic addition, condensation), ...

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⚗️High Weightage

Chemistry · Class 12

Amines

Classification, preparation, basicity of amines, reactions (diazotisation, Hinsberg test, ...

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⚗️High Weightage

Chemistry · Class 12

Biomolecules

Carbohydrates (monosaccharides, disaccharides, polysaccharides, reducing sugars), proteins...

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🧬High Weightage

Biology · Class 11

Biological Classification

Chapter 2 covers Whittaker's five-kingdom system and the detailed characteristics of all f...

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🧬High Weightage

Biology · Class 11

Plant Kingdom

Plant Kingdom covers the classification of all plant groups from primitive algae to advanc...

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🧬High Weightage

Biology · Class 11

Animal Kingdom

Animal Kingdom is a high-weightage NEET chapter requiring memorisation of all major phyla ...

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🧬High Weightage

Biology · Class 11

Morphology of Flowering Plants

One of the highest-weightage NEET chapters. Covers external form of all organs of angiospe...

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🧬High Weightage

Biology · Class 11

Anatomy of Flowering Plants

Anatomy of Flowering Plants covers internal structures seen in transverse sections of root...

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🧬High Weightage

Biology · Class 11

Cell: The Unit of Life

Cell theory, ultrastructure of prokaryotic and eukaryotic cells, and the detailed structur...

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🧬High Weightage

Biology · Class 11

Biomolecules

Chemistry of carbohydrates, proteins, lipids, nucleic acids, and enzymes. Enzyme kinetics ...

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🧬High Weightage

Biology · Class 11

Cell Cycle and Cell Division

The cell cycle controls cell growth and division. Mitosis (equational division) preserves ...

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🧬High Weightage

Biology · Class 11

Photosynthesis in Higher Plants

Photosynthesis converts light energy to chemical energy via light reactions (Z-scheme in t...

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🧬High Weightage

Biology · Class 11

Respiration in Plants

Cellular respiration converts stored energy (glucose) to ATP via glycolysis (cytoplasm) → ...

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🧬High Weightage

Biology · Class 11

Digestion and Absorption

Chapter 16 covers the complete digestive system — from the structure of the alimentary can...

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🧬High Weightage

Biology · Class 11

Breathing and Exchange of Gases

Chapter 17 covers the mechanics of pulmonary ventilation, lung volumes measured by spirome...

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🧬High Weightage

Biology · Class 11

Body Fluids and Circulation

This chapter covers the composition of blood and lymph, ABO and Rh blood group systems, th...

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🧬High Weightage

Biology · Class 11

Excretory Products and their Elimination

Chapter 19 covers the structure of the human excretory system (kidney, nephron, JGA, urete...

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🧬High Weightage

Biology · Class 11

Neural Control and Coordination

Chapter 21 covers the neuron structure and function, generation and conduction of nerve im...

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🧬High Weightage

Biology · Class 11

Chemical Coordination and Integration

Chapter 22 covers the endocrine system — the major endocrine glands (pituitary, thyroid, a...

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🧬High Weightage

Biology · Class 12

Sexual Reproduction in Flowering Plants

One of the highest-weightage Class 12 Biology chapters. Covers stamen and pistil anatomy, ...

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🧬High Weightage

Biology · Class 12

Human Reproduction

Chapter 3 of Class 12 Biology covers the male and female reproductive anatomy, spermatogen...

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🧬High Weightage

Biology · Class 12

Principles of Inheritance and Variation

This chapter covers Mendel's laws (segregation, independent assortment), deviations from M...

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🧬High Weightage

Biology · Class 12

Molecular Basis of Inheritance

Molecular basis of heredity: DNA structure (double helix details), DNA replication (semi-c...

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🧬High Weightage

Biology · Class 12

Evolution

Evolution explains the unity and diversity of life on Earth through changes in allele freq...

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🧬High Weightage

Biology · Class 12

Human Health and Disease

This high-weightage chapter covers infectious diseases (bacterial, viral, protozoan, helmi...

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🧬High Weightage

Biology · Class 12

Biotechnology: Principles and Processes

Recombinant DNA technology (rDNA): restriction enzymes, vectors, gene cloning in bacteria....

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🧬High Weightage

Biology · Class 12

Biotechnology and its Applications

Applications of rDNA technology in medicine (insulin, gene therapy, diagnostics), agricult...

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