NEET Chapter Wise Weightage 2025 PDF by NTA: Physics, Chemistry & Biology

Physics & Measurement

Physical Chemistry

Basic Concepts of Chemistry

Diversity in Living World

Kinematics

Structure of Atom

Structural Organisation in Animals and Plants

Laws of Motion

Chemical Bonding and Molecular Structure

Cell Structure and Function

Work, Energy & Power

Chemical Thermodynamics

Plant Physiology

Rotational Motion

Solutions

Human Physiology

Gravitation

Equilibrium

Reproduction

Properties of Solids and Liquids

Redox Reactions and Electrochemistry

Genetics and Evolution

Thermodynamics

Chemical Kinetics

Biology and Human Welfare

Kinetic Theory of Gases

Inorganic Chemistry

Classification of Elements and Periodicity in Properties

Biotechnology and Its Applications

Oscillations and Waves

p-Block Elements

Ecology and Environment

Electrostatics

d- and f- Block Elements

Current Electricity

Coordination Compounds

Magnetic Effects of Current & Magnetism

Organic Chemistry

Purification and Characterisation of Organic Compounds

Electromagnetic Inductions & Alternating Currents

Some Basic Principles of Organic Chemistry

Electromagnetic Waves

Hydrocarbons

Optics

Organic Compounds Containing Halogens

Dual Nature of Matter and Radiation

Organic Compounds Containing Oxygen

Atoms and Nuclei

Organic Compounds Containing Nitrogen

Electronic Devices

Biomolecules

Experimental Skills

Principles Related to Practical Chemistry

Alternating Current

• Average Peak & RMS Values
• Transformer
• Power consumed in an AC Circut

3

• 1
• 1
• 1

6%

• 2%
• 2%
• 2%

Capacitance

• Combination of Capacitors
• Circuits with capacitor and use of KCL and KVL

4

• 2
• 2

8%

• 4%
• 4%

Centre of Mass

• Collision

1

• 1

2%

• 2%

Circular Motion

Circular Motion in Horizontal Plane

1

• 1

2%

• 2%

Current Electricity

• Battery, emf, terminal Voltage, KCL and KVL 
• Combination of Resistance 

2

• 1
• 1

4%

• 2%
• 2%

Electro Magnetic Field

• Magnetic field due to a circular loop
• Properties of magnetic material
• Magnetic field due to a cylinder, large sheet, solenoid, toroid and ampere’s law
• Magnetic force and torque on a current carrying loop and magnetic dipole moment

5

• 1
• 1
• 1
• 2

10%

• 2%
• 2%
• 2%
• 4%

Electro Magnetic Induction 

• Lenz’s law

1

• 1

2%

• 2%

Electrostatics

• Dipole
• Potential Energy of a System of Point Charge

2

• 1
• 1

4%

• 2%
• 2%

Gravitation

• Kepler’s law for Satellites, Orbital speed and Escape speed
• Gravitational Potential Energy and Self Energy

2

• 1
• 1

4%

• 2%
• 2%

Modern Physics

• Photoelectric Effect
• De–Broglie wave (Matterwaves) 
• Electronic Transition in the h/h-Like Atom

3

• 1
• 1
• 1

6%

• 2%
• 2%
• 2%

Nuclear Physics

• Properties of Nucleus
• Statistical Law of Radioactive Decay 

2

• 1
• 1

4%

• 2%
• 2%

Rigid Body Dynamics

• Moment of inertia
• Rotation about Fixed Axis (Energy Conservation) 

2

• 1
• 1

4%

• 2%
• 2%

Surface Tension

• Surface tension, Surface energy and capillary rise

1

• 1

2%

• 2%

Wave Optics

• Polarisation
• YDSE with Monochromatic light

2

• 1
• 1

4%

• 2%
• 2%

Projectile Motion

• Equation of Trajectory

1

• 1

2%

• 2%

Laws of Motion

• Type of forces, Newton’s third law, free body diagram

1

• 1

2%

• 2%

KTG and Thermodynamics

• Kinetic Theory of Gases
• Calculation of work

2

• 1
• 1

4%

• 2%
• 2%

Solid and Semiconductor

• Logic Gates
• Diodes

4

• 2
• 2

8%

• 4%
• 4%

Measurement Error

• Measurement Error

1

• 1

2%

• 2%

Geometrical Optics

• Refraction by Prism
• Optical Instrument

2

• 1
• 1

4%

• 2%
• 2%

Electromagnetic Waves

• Electromagnetic Waves

1

• 1

2%

• 2%

Rectilinear Motion

• Graph-based questions

1

• 1

2%

• 2%

Work, Power, Energy

• Power

1

• 1

2%

• 2%

Simple Harmonic Motion

• Equation of SHM
• Simple Pendulum

2

• 1
• 1

4%

• 2%
• 2%

Calorimetry and Thermal Expansion

• Thermal Expansion

1

• 1

2%

• 2%

Unit and Dimension

• Thermal Expansion

2

• 2

4%

• 4%

Botany

50

100%

Cell Biology

• Cell Division
• Nucleus
• Plastids

4

• 2
• 1
• 2

8%

• 4%
• 2%
• 4%

Ecology-Biodiversity and Conservation

• Introduction, Level of biodiversity, Pattern of biodiversity, Loss of biodiversity 
• Conservation of biodiversity

5

• 4
• 1

10%

• 8%
• 2%

Plant Kingdom

• Plant Kingdom - Algae

1

• 1

2%

• 2%

Genetics - I

• Introduction, Mendelism, Monohybrid cross, Dihybrid cross, Back cross, Test cross, 
  Incomplete dominance, Codominance, Multiple allelism, Pleiotropy

4

• 4

8%

• 8%

Sexual Reproduction in Flowering Plants

• Pollination
• Fertilization and embryogenesis, Seed and Polyembryony 

3

• 2
• 1

6%

• 4%
• 2%

Ecology-Ecosystem 

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

1

• 1

2%

• 2%

Anatomy of Flowering Plants

• Plant Tissues, Tissue Systems

3

• 3

6%

• 6%

Biotechnology

• Principles of Biotechnology
• Applications of Biotechnology in Agriculture
• Processes of Biotechnology

4

• 2
• 1
• 1

8%

• 4%
• 2%
• 2%

Morphology of Flowering Plants

• Flower

4

• 4

8%

• 8%

Plant Physiology - Plant Growth and Growth Hormones

• Growth and Development
• Introduction, Discovering of PGR, Auxin, Gibberellins and 
  Cytokinins 

4

• 2
• 2

8%

• 4%
• 4%

Plant Physiology-II-Photosynthesis In Higher Plants

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

3

• 3

6%

• 6%

Genetics-II

• DNA Replication, Transcription, Genetic code and Translation
• Regulation of gene expression, HGP and DNA fingerprinting

4

• 3
• 1

8%

• 6%
• 2%

Biomolecule-I

• Lipids
• Proteins

2

• 1
• 1

4%

• 2%
• 2%

Ecology-Organisms and Population

• Adaptations, Population and Population interactions, Biotic community

1

• 1

2%

• 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

2

• 2

4%

• 4%

Biomolecule-II

• Enzymes

2

• 2

4%

• 4%

• Microbes in Human Welfare

1

• 1

2%

• 2%

Biological Classification

• Kingdom-Fungi

2

• 2

4%

• 4%

Zoology

50

100%

Cell Biology

• Cell Division
• Plastids
• Mitochondria

4

• 2
• 1
• 1

8%

• 4%
• 2%
• 2%

Genetics-I

• Introduction, Mendelism, Monohybrid cross, Dihybrid cross, Back cross, Test cross, Incomplete dominance, Codominance, Multiple allelism, Pleiotropy
• Mutation, Pedigree analysis, Genetic disorders 

2

• 1
• 1

4%

• 2%
• 2%

Biotechnology

• Process of Biotechnology
• Applications of Biotechnology in Medicine, Transgenic Animals

4

• 3
• 1

8%

• 6%
• 2%

Genetics - II

• DNA Replication, Transcription, Genetic code and 
  Translation

2

• 2

4%

• 4%

• Adaptations, Population and Population interactions, Biotic community

1

• 1

2%

• 2%

Biomolecule - II

• Enzymes

2

• 2

4%

• 4%

Body fluids and circulation 

• Heart and conduction
• Blood pressure, ECG

2

• 1
• 1

4%

• 2%
• 2%

Animal Kingdom - I

• Porifera
• Arthropoda

3

• 1
• 2

6%

• 2%
• 4%

Human Reproduction and Reproductive Health

• Reproductive Health
• Female Reproductive System
• Gametogenesis, Reproductive cycles
• Fertilization, Embryonic, development

7

• 2
• 2
• 2
• 1

14%

• 4%
• 4%
• 4%
• 2%

Excretory Products and Their Elimination

• Uriniferous tubule/Nephrons

2

• 2

4%

• 4%

Neural Control and Coordination

• CSF, Brain covering, Brain Cavity
• Brain and Spinal cord

2

• 1
• 1

4%

• 2%
• 2%

Locomotion and Movement

• Muscles
• Joints

2

• 1
• 1

4%

• 2%
• 2%

Biology In Human Welfare-Human Health and Disease

• Diseases caused by virus
• Diseases caused by bacteria
• Immune System and Common Human Disease
• Drug addiction

5

• 1
• 1
• 2
• 1

10%

• 2%
• 2%
• 4%
• 2%

Breathing and Exchange of Gases

• Respiratory volume and capacity 
• Exchange and transport of gases

2

• 1
• 1

4%

• 2%
• 2%

Origin and Evolution 

• Evidences of Evolution
• Theories of Evolution

4

• 1
• 3

8%

• 2%
• 6%

Chemical Coordination and Integration

• Mode of action of Hormones
• Thyroid gland

2

• 1
• 1

4%

• 2%
• 2%

Structural Organisation in Animal 

• Epithelial tissue

1

• 1

2%

• 2%

Animal Kingdom - II

• Chordarta 
• Cyclostomata/Pisces 

3

• 1
• 2

6%

• 2%
• 4%

NEET Questions on Cell Cycle and Cell Division

NEET Questions on Microbes in Human Welfare

NEET Questions on Reproduction in Organism

NEET Questions on Human Reproduction

NEET Questions on Biological Classification

NEET Questions on Living World

NEET Questions on Human Physiology

Physical Chemistry

20

40%

Chemical Equilibrium

• Reaction Quotient and its Applications
• KC and KP for Homogeneous Reaction
• Degree of dissociation and vapour density

3

• 1
• 1
• 1

6%

• 2%
• 2%
• 2%

Chemical Kinetics

• Effect of Temperature, Arrhenius equation

3

• 3

6%

• 6%

Electrochemistry

• Faradays Law of Electrolysis

2

• 2

4%

• 4%

Ionic Equilibrium

• Acid-base Titration and Indicator

1

• 1

2%

• 2%

Mole Concept

• Units, Atoms, Molecules, Atomic mass, Molecular mass, Gram atomic mass, Gram molecular mass, RAM, Average atomic mass
• Limiting Reagent (LR)
• Percentage composition and Molecular and Empirical formula

3

• 1
• 1
• 1

6%

• 2%
• 2%
• 2%

Solution Colligative Properties

• Solutions of Gases in Liquids (Henry’s law)
• Osmosis and osmotic pressure

2

• 1
• 1

4%

• 2%
• 2%

Atomic Structure

• Quantum Numbers and Electronic configuration
• Bohr's Model (Calculation of Radius, velocity and energy)

2

• 1
• 1

4%

• 2%
• 2%

Redox Reaction

• Types of Redox reaction, Balancing of redox reactions, Oxidizing and Reducing agent

1

• 1

2%

• 2%

Thermodynamics

• Thermodynamic functions and Thermodynamic processes
• IInd Law of thermodynamics: Basics of entropy, Entropy calculation for different types of physical process of an ideal gas, chemical reaction
• Calculation of ∆E, ∆H, w and θ in different types of physical processes

3

• 1
• 1
• 1

6%

• 2%
• 2%
• 2%

Inorganic Chemistry

14

28%

Chemical Bonding

• VSEPR Theory
• Polarity of Bond, Dipole Moment 

2

• 1
• 1

4%

• 2%
• 2%

Qualitative Analysis

• Vth and VIth Group

1

• 1

2%

• 2%

Atomic Structure

• Quantum Numbers and Electronic configuration 

1

• 1

2%

• 2%

Periodic Table

• Electronegativity 
• Ionisation Energy 

2

• 1
• 1

4%

• 2%
• 2%

Coordination Compound

• General introduction of complex salts and definitions to be used
• Crystal field theory and applications of crystal field theory: (Theory Magnetic moment of complex, Color of complex, Stability of complex)
• Isomerism in coordination compounds (Structural Isomerism, Stereoisomerism, Geometrical Isomerism, Optical Isomerism)

3

• 1
• 1
• 1

6%

• 2%
• 2%
• 2%

p-block (Nitrogen and Oxygen)

• Physical and Chemical properties of Group 15th elements
• Compounds of Nitrogen and phosphorus

3

• 1
• 2

6%

• 2%
• 4%

d-f-Block Element Compound 

• Ionisation enthalpy, oxidation state, Electrode potential and chemical reactivity
• Lanthanoids and actinoids
• Electronic configuration, atomic and ionic size, density, melting and boiling points

5

• 1
• 1
• 3

10%

• 2%
• 2%
• 6%

Organic Chemistry

16

32%

Aromatic Compound

1

2%

Aniline

1

2%

Reaction Mechanism

• Nucleophilic Substitution Reaction of Alcohol 
• Unimolecular nucleophilic substitution reaction of Alkyl Halide (SN1)
• Bimolecular nucleophilic substitution reaction of Alkyl Halide (SN2)
• Elimination Reaction of Alcohol 

4

• 1
• 1
• 1
• 1

8%

• 2%
• 2%
• 2%
• 2%

Periodic Table & Periodicity in Properties

2

4%

Biomolecule and Polymer

• Carbohydrate: Monosaccharide, Disaccharide, Polysaccharide

1

• 1

2%

• 2%

Hydrocarbons

• Alkane
• Alkene

2

• 1
• 1

4%

• 2%
• 2%

General Organic Chemistry

• Acidic Strength
• Carbon free radicals and carbocations 
• Inductive effect

4

• 1
• 1
• 2

8%

• 2%
• 2%
• 4%

Grignard Reagent

• Practical Organic Chemistry
• Oxidation

4

• 2
• 2

8%

• 4%
• 4%

IUPAC nomenclature 

• Fundamental of Organic Chemistry

2

• 2

4%

• 4%