NEET 2026 Chapter Wise Weightage: Physics, Chemistry & Biology

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Measurement Error

2

4%

Centre of Mass- Impulse

1

2%

Work Power Energy- Work Energy Theorem

1

2%

Simple Harmonic Motion

2

4%

Rectilinear Motion- Velocity, Acceleration, Average Acceleration

1

2%

Friction- Static Friction & Kinetic Friction

1

2%

Relative Motion- Relative motion in one dimension 

1

2%

KTG and Thermodynamics

Law of equipartition and internal energy 

Kinetic Theory of Gases 

2

1

4%

2%

Sound Wave- Organ pipes and resonance

1

2%

Surface Tension

Excess Pressure in drops and bubble 

Capillar action

1

1

2%

2%

Circular Motion

Circular Motion in Horizontal plane  

Motion of a vehicle, Centrifugal force & rotation of earth

1

1

2%

2%

Rigid Body Dynamics- Moment of Inertia

1

2%

Modern Physics

Bohr’s atomic model of H-atom and H-like species (properties) 

De–Broglie wave (Matterwaves) 

Photoelectric Effect 

1

2

1

2%

4%

2%

Electromagnetic waves 

2

4%

Electro Magnetic Field

Magnetic field due to a circular loop 

Magnetic force and torque on a current carrying loop and  magnetic dipole moment 

1

2

2%

4%

Electrostatics

Dipole

Properties of charge and Coulomb's Law 

1

1

2%

2%

Polarisation

2

4%

Current Electricity

Combination of Resistance 

Battery, emf, terminal Voltage, KCL and KVL 

Definition of Current, Current Densities, Drift

2

1

1

4%

2%

2%

Heat Transfer

Thermal conduction in linear conductors at steady state 

1

2%

Geometrical Optics

Optical Instrument

Combination of thin Lens/Lens and Mirrors 

1

1

2%

2%

Solid and Semiconductor

Logic Gates

Diodes

1

1

2%

2%

Alternating Current

Power consumed in an AC Circuit

1

2%

Gravitation

Kepler’s law for Satellites, Orbital speed and Escape speed

Universal law of gravitation

1

1

2%

2%

Capacitance

Capacitor with dielectric 

1

2%

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Plant Kingdom

Kingdom plantae-GymNosperms

Kingdom plantae-bryophytes

Kingdom plantae-pteridophytes 

1

3

1

2%

6%

2%

Plant Physiology-II-Photosynthesis In Higher Plants 

Dark Reaction C3-cycle, C4 cycle, Photorespiration, CAM cycle and Factors 

Introduction (Early experiments), site of photosynthesis  and photosynthetic pigments 

1

1

2%

2%

Cell Biology

Cell Division

Introduction, Procaryotic Cell 

Ribosome

Cell membrane 

1

2

1

2

2%

4%

2%

4%

Plant Physiology-II-Plant Growth and Growth Hormones 

Introduction, Discovering of PGR, Auxin, Gibberellins &  Cytokinins 

2

4%

Morphology of Flowering Plants 

Flowers

Seeds

2

1

4%

2%

Plant Physiology-II-Respiration in plants

Aerobic respiration- Link reaction and krebs cycle, Terminal oxidation, Respiratory balance sheet, Amphibolic pathway, Anaerobic respiration-Fermentation, Respiratory quotient 

1

2%

Anatomy of Flowering Plants 

Anatomy of plant parts

1

2%

Biological Classification 

Kingdom-Monera 

1

2%

Ecology-Ecosystem

Productivity, Decomposition, Energy flow, Food chain, Food  web, Ecological pyramids

3

6%

Sexual Reproduction in Flowering Plants

Fertilization and embryogenesis, Seed and Polyembryony  

Pollination 

Female Reproductive Part 

Male Reproductive Part 

2

1

1

1

4%

2%

2%

2%

Genetics-II 

Regulation of gene expression, HGP and DNA fingerprinting 

Nucleic Acids (The Search For Genetic Material, DNA, RNA

DNA Replication, Transcription, Genetic Code and Translation

1

5

3

2%

10%

6%

Ecology-Organisms and Population 

Adaptations, Population and Population interactions, Biotic  community 

Introduction, Abiotic factors, Responses to abiotic factors

3

1

6%

2%

Genetics-I 

Polygenic Inheritance, Lethal Gene, Gene Interactions,  Chromosomal Theory Of Inheritance, Sex Determination,  Linkage, Sex Linkage, Recombination

Mutation,  Pedigree Analysis, Genetic Disorders 

Introduction, Mendelism, Monohybrid Cross, Dihybrid Cross,  Back Cross, Test Cross, Incomplete Dominance, Codominance, Multiple Allelism, Pleiotropy

2

1

1

4%

2%

2%

Ecology-Biodiversity and Conservation 

Conservation of biodiversity

Introduction, Level of biodiversity, Pattern of biodiversity,  Loss of biodiversity 

1

1

2%

2%

Biomolecule-II 

Enzymes

3

6%

Chemical Coordination and Integration 

Adrenal gland 

Pituitary gland 

Hormone-secreting other organs 

2

1

1

4%

2%

2%

Animal Kingdom-2 

Chordarta 

Amphibia

Cyclostomata/Pisces 

1

4

1

2%

8%

2%

Animal Kingdom-1 

Echinodermata 

Platyhelminthes and Aschelminthes 

1

1

2%

2%

Excretory Product and Their Elimination 

Urine formation 

Disease related with kidney 

1

1

2%

2%

Body fluids and circulation 

Heart and conduction

1

2%

Application Biology (Biotechnology) 

Principles of Biotechnology

Applications of Biotechnology in Medicine, Transgenic Animals

Processes of Biotechnology 

Applications of Biotechnology in Agriculture 

2

2

4

1

4%

4%

8%

2%

Biology In Human Welfare-Human Health and Disease 

Arthritis and Cancer 

Immune System and Common Human Diseases 

2

3

4%

6%

Human Reproduction and Reproductive Health 

Gametogenesis, Reproductive cycles 

Fertilisation, Embryonic, development 

Reproductive Health 

3

1

1

6%

2%

2%

Biology In Human Welfare-Microbes in Human Welfare 

Microbes in Human Welfare 

4

8%

Origin and Evolution 

Evidences of Evolution 

1

2%

Mole Concept

Oxidation number 

Units, Atoms, Molecules, Atomic mass, Molecular mass,  Gram atomic mass, Gram molecular mass, RAM, Average  atomic mass 

1

2

2%

4%

Thermodynamics

Enthalpy of Solution and Enthalpy of Neutralisation 

1

2%

Chemical Equilibrium

KC and KP for Homogeneous Reaction 

Le-chatelier's principle 

1

1

2%

2%

Atomic Structure

Bohr's Model (Calculation of Radius, velocity and energy)

2

4%

Ionic Equilibrium

pH Calculations: Weak Acid, Weak Base, Polyprotic acid 

1

2%

Chemical Kinetics

The integrated rate laws, zero, first, nth order reaction

Effect of Temperature, Arrhenius equation

2

1

4%

2%

Solution Colligative Properties

Colligative properties, Van't Hoff factor and its  applications 

Solutions of Gases in Liquids (Henry’s law) 

Ideal and non-ideal solution, Azeotropes 

1

1

1

2%

2%

2%

Electrochemistry

Kohlrausch law and its applications 

1

2%

Chemical Bonding

Molecular Orbital Theory (MOT) 

Valence bond theory (VBT) and Hybridisation 

Hydrogen bonding 

1

1

1

2%

2%

2%

Periodic Table

Electronegativity 

Development of Periodic Table, Period, Group and Block

1

1

2%

2%

Coordination Compound

Bonding in coordination compounds (Initial bonding theories and EAN rule, Valence bond theory) 

Crystal field theory and applications of crystal field theory : (Theory of Magnetic moment of complex, Colour of complex, Stability of complex) 

1

2

2%

4%

p-block (Nitrogen and Oxygen)

Physical and Chemical properties of Group 16th elements

1

2%

d-f-Block Element Compound 

Catalytic properties, formation of interstitial compounds, alloy formation 

Lanthanoids and actinoids 

Lanthanoids and actinoids

Electronic configuration, atomic and ionic size, density, melting and boiling points

1

1

2%

2%

Qualitative Analysis

Vth and VIth Group 

1

2%

General Organic Chemistry

Acidic strength 

Hyperconjugation effect 

Basic strength 

1

1

1

2%

2%

2%

Aromatic Compound

1

2%

Grignard Reagent 

Practical Organic Chemistry 

Reduction 

Grignard Reagent 

2

1

1

4%

2%

2%

Reaction Mechanism

Bimolecular nucleophilic substitution reaction of Alkyl Halide (SN2) 

Aryl Halide (SN2Ar)

1

1

2%

2%

Aromatic Compound

Aromaticity 

Electrophilic substitution 

Phenol 

1

1

1

2%

2%

2%

Stereoisomerism 

Specific rotation, observed rotation, optical purity and enantiomeric excess, Racemic mixture, Optical Resolution

Geometrical isomerism

2

1

4%

2%

Biomolecule and Polymer

Polymers

Carbohydrate: Monosaccharide, Disaccharide, Polysaccharide

1

1

2%

2%