NEET Chapter Wise Weightage for 2026, by analysing 2025 PDF by NTA: Physics, Chemistry & Biology

Why Chapter-Wise Weightage Matters? 

NEET 2025 Chapter-wise Weightage: Plan Smart, Study Right

Knowing which chapters carry more weight in NEET can boost your preparation strategy. Even though the National Testing Agency (NTA) has not officially shared chapter-wise weightage, expert reviews of the NEET 2025 paper held on May 4 provide strong clues. These expert insights show which topics appeared more often and which ones had fewer questions.

This year’s NEET exam was tougher than last year. Many students found the paper highly challenging, mainly because it focused on application-based and analytical questions. Those with strong concepts had the upper hand. So, if you’re preparing for NEET 2026, understanding which chapters matter most will help you save time and effort.

While the official NEET chapter-wise weightage PDF hasn’t been released, subject experts have broken down the NEET 2025 paper thoroughly. Based on their analysis, we’ve listed the expected weightage chapter by chapter. You can use this information to figure out which areas to give more time and which ones to cover briefly. But don’t rely on this list alone. NEET doesn’t follow a fixed pattern every year. That’s why it’s important to cover the entire syllabus with at least basic understanding of each topic.

Concept clarity always beats rote learning in NEET. So instead of memorizing facts, try to understand the logic behind each concept. This approach will help you tackle even the trickiest questions with confidence.

 

We’ve also added the subject-wise difficulty level for NEET 2025. It shows how Physics, Chemistry, and Biology performed this year in terms of complexity and question types. With NEET 2026 expected in the first week of May, now is the perfect time to focus on smart preparation.

Take a look at the complete chapter-wise weightage based on NEET 2025. Use it as a guide, not a rule. Build your timetable with the right balance of revision, mock tests, and concept-building. Your best score begins with the right strategy.

NEET Physics Chapter Wise Weightage 2025

Key chapters in NEET Physics include Laws of Motion, System of Particles and Rigid Body, Thermodynamics, Magnetic Effect of Current and Magnetism, and Current Electricity. Experts advise focusing more on these topics due to their high weightage.

Along with NCERT, use reference books for deeper understanding. Regularly solve numerical-based questions to strengthen concepts and improve accuracy. This approach helps boost your Physics score.

Check the NEET Physics chapter-wise weightage below for a focused study plan.

  NEET 2026 - wise weightage

NEET 2025 Chapter Wise Weightage for Physics

Physics Chapters and Topics
Average Number of Questions from the Chapter
Weightage of the chapter and topic 

Class 11

19

38%

Measurement Error

2 4%
Centre of Mass

Impulse

1

2%

Work Power Energy

Work Energy Theorem

1 2%

Simple Harmonic Motion

Spring Mass System

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%

 

Class 12
26
52%

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%

Wave Optics

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%

 

Biology plays a crucial role in NEET, contributing 50% of the total questions. A strong score in this section significantly boosts your overall marks and qualifying chances.

While every chapter holds importance, smart time allocation is key. Use the NEET 2025 Biology chapter-wise weightage table below to prioritize topics and plan your preparation effectively.

 

NEET 2025 Chapter Wise Weightage for Botany and Zoology

NEET Biology includes two sections—Botany and Zoology—with 45 questions each. To prepare efficiently, review the NEET 2025 chapter-wise weightage for Biology and focus on the most important topics from both areas.

Biology Chapters and Topics

Average No. of Questions from the Chapter Weightage of the Chapter and Topic

Botany

48 96%
Class 11
21
42%
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%

Class 12
27
54%

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%

Zoology 42

84%

Class 11
18
36%

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%
Class 12
24
48%
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%

 

NEET 2025 Biology Topic-wise Questions

Some NEET Biology topics carry higher weightage and often need extra focus, practice, and guidance. Key topics include Cell Cycle and Cell Division, Microbes in Human Welfare, Reproduction in Organisms, Human Reproduction, Biological Classification, and The Living World. Aspirants can download the topic-wise NEET question paper PDFs provided below for targeted preparation.

NEET Chemistry Chapter Wise Weightage 2025

NEET Chemistry includes 45 questions divided across three sub-sections: Inorganic, Organic, and Physical Chemistry. Each section carries nearly equal weightage. To prepare effectively, refer to the chapter-wise NEET Chemistry weightage table below and focus on high-priority topics.

 

 

NEET 2025 Chapter Wise Weightage for Chemistry

NEET Chemistry covers three key areas: Organic, Inorganic, and Physical Chemistry. Check the NEET 2025 Chemistry chapter-wise weightage in the table below to plan your preparation efficiently.

Chemistry Chapters and Topics
Average No. of Questions from the Chapter
Weightage of the Chapter and Topic

Physical Chemistry

16

32%

Class 11
9
18%

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%
Class 12
7
14%
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%

Inorganic Chemistry

12 24%
Class 11
5
10%
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%

Class 12
7
14%

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%

Organic Chemistry

17 34%
Class 11
3
6%
General Organic Chemistry

Acidic strength

Hyperconjugation effect

Basic strength

1

1

1

2%

2%

2%

Aromatic Compound 1

2%

Class 12
14
28%
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%

 

The NEET 2025 exam pattern was changed and revised to that of the pre-COVID era. The optional questions were removed, reducing the total number of questions to 180 from 200. The duration has also been reduced to 180 minutes or three hours from 200 minutes.

The following table indicates the sections of the NEET exam pattern, NEET subject list, NEET subject-wise weightage, and the distribution of marks.

Subject Number of Questions Marks
Physics 45 180
Chemistry 45 180
Botany 45 180
Zoology 45 180
Total 180 720

It is expected that the NEET 2026 exam pattern will be the same as last year. It can be confirmed once NTA releases the NEET 2026 information bulletin or notification.

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