JEE Main 2027 Chapter-Wise Weightage - Physics, Chemistry, Maths | Padhaao Blog

In short: Based on JEE Main 2024-2026 analysis, Mechanics (30%) dominates Physics, Calculus (30%) dominates Maths, and Chemistry is evenly split between Physical (35%), Organic (30%), and Inorganic (35%). Studying just the top 15 high-priority chapters across all three subjects can cover approximately 70% of the JEE Main paper.

How This Weightage Data Was Compiled

This analysis is based on question-by-question tracking across JEE Main papers from January and April sessions of 2024, 2025, and 2026. Each question was mapped to its source chapter, and the average frequency was calculated. While exact question distribution varies between sessions, the overall patterns remain consistent.

JEE Main has 75 questions to attempt: 25 per subject (20 MCQs + 5 numerical out of 10). Total marks: 300.

Physics Chapter-Wise Weightage (25 Questions, 100 Marks)

Mechanics (~30% of Physics)

Chapter	Expected Questions	Marks	Priority
Laws of Motion and Friction	1-2	4-8	Very High
Work, Energy, and Power	1-2	4-8	Very High
Rotational Motion and Moment of Inertia	1-2	4-8	Very High
Center of Mass and Collisions	1	4	High
Gravitation	1	4	High
Kinematics (1D and 2D)	1	4	High
Units and Dimensions	0-1	0-4	Low

Electrodynamics (~25% of Physics)

Chapter	Expected Questions	Marks	Priority
Electrostatics (Coulomb, Field, Potential, Capacitance)	2-3	8-12	Very High
Current Electricity (Ohm's Law, Circuits, Kirchhoff)	1-2	4-8	Very High
Moving Charges and Magnetism	1	4	High
Electromagnetic Induction and AC	1-2	4-8	High

Modern Physics (~12% of Physics)

Chapter	Expected Questions	Marks	Priority
Dual Nature of Radiation and Matter	1	4	High
Atoms (Bohr Model) and Nuclei	1-2	4-8	High
Semiconductor Electronics	1	4	Medium

Optics (~10% of Physics)

Chapter	Expected Questions	Marks	Priority
Ray Optics (Mirrors, Lenses, Prism)	1-2	4-8	Very High
Wave Optics (Interference, Diffraction)	1	4	High

Thermodynamics and Waves (~15% of Physics)

Chapter	Expected Questions	Marks	Priority
Thermodynamics and Kinetic Theory	1-2	4-8	High
Waves (Sound, Standing Waves)	1-2	4-8	High
Oscillations (SHM)	1	4	Medium

Remaining Topics (~8% of Physics)

Chapter	Expected Questions	Marks	Priority
Properties of Matter (Elasticity, Fluids, Surface Tension)	1	4	Medium
Electromagnetic Waves	0-1	0-4	Low
Communication Systems	0-1	0-4	Low

Physics Priority Summary

Priority Level	Chapters	Questions Covered
Very High	Mechanics core (Newton, WEP, Rotation), Electrostatics, Current Electricity, Ray Optics	10-14
High	Gravitation, Kinematics, Magnetism, EMI/AC, Modern Physics, Wave Optics, Thermo, Waves	8-12
Medium	SHM, Semiconductors, Fluids	2-3
Low	Units, EM Waves, Communication	0-2

Chemistry Chapter-Wise Weightage (25 Questions, 100 Marks)

Physical Chemistry (~35% of Chemistry)

Chapter	Expected Questions	Marks	Priority
Mole Concept and Stoichiometry	1	4	High
Thermodynamics and Thermochemistry	1-2	4-8	Very High
Chemical Equilibrium	1	4	High
Ionic Equilibrium (pH, Buffers, Solubility)	1	4	High
Electrochemistry	1-2	4-8	Very High
Chemical Kinetics	1	4	High
Solutions and Colligative Properties	1	4	Medium
Atomic Structure	1	4	High
Solid State and Surface Chemistry	0-1	0-4	Medium

Organic Chemistry (~30% of Chemistry)

Chapter	Expected Questions	Marks	Priority
General Organic Chemistry (GOC, Isomerism, IUPAC)	1-2	4-8	Very High
Hydrocarbons	1	4	High
Haloalkanes and Haloarenes	1	4	High
Alcohols, Phenols, Ethers	1	4	High
Aldehydes, Ketones, Carboxylic Acids	1-2	4-8	Very High
Amines and Diazonium Salts	1	4	High
Biomolecules and Polymers	0-1	0-4	Medium
Chemistry in Everyday Life	0-1	0-4	Low

Inorganic Chemistry (~35% of Chemistry)

Chapter	Expected Questions	Marks	Priority
Chemical Bonding and Molecular Structure	2-3	8-12	Very High
Periodic Table and Periodicity	1	4	High
p-Block Elements (Groups 13-18)	2-3	8-12	Very High
d-Block and f-Block Elements	1-2	4-8	Very High
Coordination Compounds	1-2	4-8	Very High
s-Block Elements	0-1	0-4	Medium
Metallurgy	0-1	0-4	Medium
Hydrogen	0-1	0-4	Low

Chemistry Priority Summary

Priority Level	Topics	Questions Covered
Very High	Thermodynamics, Electrochemistry, GOC, Carbonyl Compounds, Chemical Bonding, p-Block, d-Block, Coordination	12-16
High	Mole Concept, Equilibrium, Kinetics, Atomic Structure, Hydrocarbons, Haloalkanes, Amines, Periodicity	7-9
Medium	Solutions, Solid State, Biomolecules/Polymers, s-Block, Metallurgy	2-4
Low	Hydrogen, Everyday Chemistry	0-2

Practice any chapter on Padhaao

AI tutor for CBSE, ICSE & 15 state boards · 10 learning modes · 3 free chapters daily

Try it free

Maths Chapter-Wise Weightage (25 Questions, 100 Marks)

Calculus (~30% of Maths)

Chapter	Expected Questions	Marks	Priority
Limits, Continuity, Differentiability	1-2	4-8	Very High
Methods of Differentiation and Applications	1-2	4-8	Very High
Indefinite and Definite Integration	2-3	8-12	Very High
Application of Integrals (Area under curves)	1	4	High
Differential Equations	1	4	High

Coordinate Geometry (~20% of Maths)

Chapter	Expected Questions	Marks	Priority
Straight Lines	1	4	High
Circles	1	4	Very High
Parabola	1	4	Very High
Ellipse	1	4	High
Hyperbola	0-1	0-4	Medium

Algebra (~25% of Maths)

Chapter	Expected Questions	Marks	Priority
Matrices and Determinants	1-2	4-8	Very High
Complex Numbers	1	4	High
Quadratic Equations	1	4	High
Permutations and Combinations	1	4	High
Binomial Theorem	1	4	High
Sequences and Series (AP, GP, HP)	1	4	High
Sets, Relations, Functions	0-1	0-4	Medium

Trigonometry (~5% of Maths)

Chapter	Expected Questions	Marks	Priority
Trigonometric Functions and Equations	0-1	0-4	Medium
Inverse Trigonometric Functions	1	4	Medium

Statistics and Probability (~10% of Maths)

Chapter	Expected Questions	Marks	Priority
Probability (Conditional, Bayes Theorem)	1-2	4-8	Very High
Statistics (Mean, Variance, Standard Deviation)	1	4	High

Vectors and 3D Geometry (~10% of Maths)

Chapter	Expected Questions	Marks	Priority
Vectors (Dot product, Cross product)	1	4	High
3D Geometry (Lines and Planes)	1-2	4-8	Very High

Maths Priority Summary

Priority Level	Topics	Questions Covered
Very High	Integration, Differentiation, LCD, Circles, Parabola, Matrices, Probability, 3D Geometry	12-16
High	Area, DE, Straight Lines, Ellipse, Complex Numbers, Quadratics, PnC, Binomial, Series, Vectors, Statistics	8-11
Medium	Hyperbola, Sets/Relations, Trigonometry, Inverse Trig	2-4
Low	—	0

The "Study 15 Chapters, Cover 70% of JEE" Strategy

Here is the shortcut strategy for students who want maximum return on study time:

#	Chapter	Subject	Expected Questions	Marks
1	Integration (Indefinite + Definite)	Maths	2-3	8-12
2	Differentiation and Applications	Maths	2-3	8-12
3	Matrices and Determinants	Maths	1-2	4-8
4	Coordinate Geometry (Circles + Parabola)	Maths	2	8
5	Probability	Maths	1-2	4-8
6	3D Geometry	Maths	1-2	4-8
7	Mechanics (Newton + WEP + Rotation)	Physics	3-5	12-20
8	Electrostatics + Current Electricity	Physics	3-5	12-20
9	Optics (Ray + Wave)	Physics	2-3	8-12
10	Chemical Bonding	Chemistry	2-3	8-12
11	Thermodynamics + Electrochemistry	Chemistry	2-4	8-16
12	GOC + Carbonyl Compounds	Chemistry	2-4	8-16
13	p-Block Elements	Chemistry	2-3	8-12
14	d-Block + Coordination Compounds	Chemistry	2-4	8-16
15	Modern Physics (Atoms + Nuclei + Dual Nature)	Physics	2-3	8-12
	Total from 15 topic areas		~52-55 of 75	~210-220

That is approximately 70% of the paper from 15 focus areas. Master these first, then expand to remaining topics.

Session-Wise Comparison (2024-2026 Trends)

Aspect	January Session	April Session
Difficulty level	Moderate	Moderate-Hard (slightly)
NCERT-based questions	30-35%	25-30%
Numerical question difficulty	Moderate	Higher
Competition level	Higher (more candidates)	Slightly lower (fewer candidates)
Average topper scores	295-300	290-300

Both sessions are equally valid. Attempting both gives you two chances and the confidence of knowing the exam environment.

Subject-Wise Time Allocation During the Exam

Subject	Suggested Time	Questions	Strategy
Chemistry	45-50 minutes	25Q	Start here — most scoring, least time-consuming
Physics	55-60 minutes	25Q	Second — formula-based questions first, then conceptual
Maths	65-75 minutes	25Q	Last — needs the most time, do easy ones first
Buffer	5-10 minutes	—	Review marked questions

Starting with Chemistry is a proven strategy because it builds confidence early and saves time for the more time-consuming Maths section.

Frequently Asked Questions

Is the weightage the same for January and April sessions?

The topic-wise weightage is broadly similar between sessions, but individual question distribution can vary. High-priority chapters remain high-priority across both sessions.

How reliable is this weightage for JEE Main 2027?

Very reliable for "Very High" and "High" priority chapters — these have been consistently high-weightage for over 5 years. Medium and Low priority topics may see slight variation (±1 question).

Should I skip Low priority topics entirely?

Not if you are aiming for 200+. Low priority topics contribute 5-10 marks. In a competitive exam, every mark matters. Study them after completing high-priority topics.

How do I use this data to create a study plan?

Spend 60% of your study time on "Very High" priority topics, 25% on "High," 10% on "Medium," and 5% on "Low." During revision, revisit high-priority topics more frequently.

Is Maths weightage predictable?

Maths is the most predictable subject in JEE Main. Integration, Matrices, Coordinate Geometry, and Probability appear every single session without exception. These are guaranteed questions.

How does this weightage compare to JEE Advanced?

JEE Advanced has a different distribution. Multi-concept questions blur chapter boundaries. However, the same high-priority topics (Mechanics, Electrodynamics, Calculus, Organic Chemistry) remain important in Advanced too.

Start Practicing on Padhaao

Use this weightage data to prioritize your practice. Start with the top 15 high-priority chapters and build from there. Padhaao offers chapter-wise practice with detailed solutions for every question.

Start learning for free →

JEE Main 2027 Chapter-Wise Weightage - Physics, Chemistry, Maths