JEE Main examination is conducted by NTA for admission in NITs, IIITs and other National/ State funded engineering institutes in the country. JEE Main is also the qualifying exam to become eligible for JEE Advanced and getting admission in IITs.
Important Topics for JEE Main and Chapter-wise Weightage
JEE Main syllabus is huge, consisting of class 11 and 12 chapters of Physics, Chemistry, Math. Many aspirants who don’t have enough time to complete the syllabus ask for important and scoring chapters for JEE Main which they can study before the exam.
In this post, we will cover the important chapters and topics for JEE Main class 11 and 12. After that we will see the chapter-wise weightage of JEE Mains Physics, Chemistry and Math. And in the end, we will try to answer a few queries of students.
Important Chapters and Topics for JEE Main 2025
Chapter-wise important topics for JEE Main Physics, Chemistry and Math :
| Important Topics for JEE Main Physics | |
| Chapter | Topics |
| Mechanics | Kinematics, Newton’s Laws of Motion, Conservation of Momentum, Work Energy and Power, Gravitation, Rigid Body Dynamics, Simple Harmonic Motion, Fluid Mechanics, Waves |
| Modern Physics | Photoelectric effect, Bohr H atom, De Broglie wavelength, Nuclear Physics |
| Electricity and Magnetism | Kirchhoff’s laws, Biot–Savart’s law and Ampere’s law, Electromagnetic induction |
| Optics | Reflection and refraction, Young’s double-slit experiment |
| Important Topics for JEE Main Chemistry | |
| Chapter | Topics |
| Electrochemistry | Conductivity and conductance, Battery and cell, Faraday’s laws, Nernst equation, Kohlrausch’s law |
| Thermodynamics | Laws of thermodynamics, Enthalpy, Entropy |
| Chemical Kinetics | Arrhenius equation, Order of Reaction |
| Chemical Bonding | VSEPR, Hybridisation, Molecular orbital theory |
| Coordination Compounds | Nomenclature, Isomerism, Colouration |
| Important Topics for JEE Main Math | |
| Chapter | Topics |
| Matrices and Determinants | Matrices, order of matrices, row and column matrix, Multiplication of two matrices, Properties of matrix multiplication, Transpose of a matrix, Transpose conjugate of a matrix and properties |
| Probability and Permutations & Combinations | Probability of an event, addition and multiplication theorems of probability, Baye’s theorem, permutation as an arrangement and combination as section, Meaning of P (n,r) and C (n,r), simple applications |
| Co-ordinate Geometry | Coordinate Axes, Distance between two points, Section Formula, Centroid |
| Definite Integrals | Application of formulas, Direct indefinite solving then putting the limits, by parts, recursion, area under curves |
| Vectors and 3D Geometry | Scalar triple products, Vector triple products, Section Formula, Direction Cosines and Direction Ratio, Equations for a Line in Space, Angle Between Two Lines, Shortest Distance between Two Lines |
JEE Main 2025 Weightage Chapter-wise
Note : NTA has deleted some chapters and topics from the JEE Mains syllabus. Check out the reduced syllabus for JEE Mains.
There is a time in your JEE Main preparation when you want to know the weightage of each chapter in the JEE Main paper, either for revision or to practice more questions from these chapters.
By knowing the chapter-wise weightage of JEE Main, candidates will be able to know the important topics and chapters where they need to focus more for cracking JEE Mains.
Weightage of Chapters in JEE Mains Syllabus
The weightage of chapters in JEE Mains Physics, Chemistry and Mathematics has been prepared on the basis of the previous year papers. Candidates have to cover all high-weightage chapters for JEE Main to score well in the exam. Solve JEE Main previous years papers to know the type of questions asked and high-weightage chapters and topics.
JEE Main Physics Weightage Chapter-wise
| JEE Main Physics – Weightage of Chapters | ||
| Topic/ Chapter | Number of Questions | Total Marks |
| Modern Physics | 5 | 20 |
| Heat and Thermodynamics | 3 | 12 |
| Optics | 3 | 12 |
| Current Electricity | 3 | 12 |
| Electrostatics | 3 | 12 |
| Magnetics | 2 | 8 |
| Unit, Dimension and Vector | 1 | 4 |
| Kinematics | 1 | 4 |
| Laws of motion | 1 | 4 |
| Work, Power and Energy | 1 | 4 |
| Centre Of Mass, Impulse and Momentum | 1 | 4 |
| Rotation | 1 | 4 |
| Gravitation | 1 | 4 |
| Simple Harmonic Motion | 1 | 4 |
| Solids and Fluids | 1 | 4 |
| Waves | 1 | 4 |
| Electromagnetics Induction | 1 | 4 |
JEE Main Chemistry Weightage Chapter-wise
| JEE Main Chemistry – Weightage of Chapters | ||
| Topic/ Chapter | Number of Questions | Total Marks |
| Transition Elements and Coordination Chemistry | 3 | 12 |
| Periodic table and Representative Elements | 3 | 12 |
| Thermodynamics And Gaseous State | 2 | 8 |
| Atomic Structure | 2 | 8 |
| Chemical Bonding | 2 | 8 |
| Chemical And Ionic Equilibrium | 2 | 8 |
| 2 | 8 | |
| Nuclear Chemistry And Environment | 2 | 8 |
| Mole Concept | 1 | 4 |
| Redox Reaction | 1 | 4 |
| Electrochemistry | 1 | 4 |
| Chemical Kinetics | 1 | 4 |
| Solution and Colligative Properties | 1 | 4 |
| General Organic Chemistry | 1 | 4 |
| Stereochemistry | 1 | 4 |
| Hydrocarbon | 1 | 4 |
| Alkyl Halides | 1 | 4 |
| Carboxylic Acid and their Derivatives | 1 | 4 |
| Carbohydrates, amino acid and Polymers | 1 | 4 |
| Aromatic Compounds | 1 | 4 |
JEE Main Math Weightage Chapter-wise
| JEE Main Math – Weightage of Chapters | ||
| Topic/ Chapter | Number of Questions | Total Marks |
| Coordinate Geometry | 5 | 20 |
| Limits, Continuity and Differentiability | 3 | 12 |
| Integral Calculus | 3 | 12 |
| Complex numbers and Quadratic Equation | 2 | 8 |
| Matrices and Determinants | 2 | 8 |
| Statistics and Probability | 2 | 8 |
| Three Dimensional Geometry | 2 | 8 |
| Vector Algebra | 2 | 8 |
| Sets, Relation and Function | 1 | 4 |
| Permutations and Combinations | 1 | 4 |
| Binomial Theorem and Its Application | 1 | 4 |
| Sequences and Series | 1 | 4 |
| Trigonometry | 1 | 4 |
| 1 | 4 | |
| Differential Equation | 1 | 4 |
| Statics and Dynamics | 1 | 4 |
| Differential Calculus | 1 | 4 |
Most Important Chapters for JEE Mains Class 11
List of important chapters of JEE Mains class 11 :
- Thermodynamics
- Work, Power, Energy
- Rotation
- Simple Harmonic Motion
- Waves Oscillations
- General Organic Chemistry
- Structure of Atom
- Equilibrium
- Coordinate Geometry
- Complex Numbers
- Trigonometry
Most Important Chapters for JEE Mains Class 12
List of important chapters of JEE Mains class 12 :
- Modern Physics
- Electrodynamics
- Electrochemistry
- Chemical Kinetics
- Coordination Compounds
- 3D Geometry
- Vector
- Probability
- Integration
JEE Main Physics Weightage – FAQ
What are the most important topics in Physics for JEE Mains?
The most important topics in Physics for JEE Mains are : Modern Physics, Heat and Thermodynamics, Optics, Current Electricity, Electrostatics, Magnetics, Laws of motion, Work, Power and Energy, Waves.
What are the easy topics in Physics for JEE Mains?
The easiest and scoring topics in JEE Main Physics are : Modern Physics, Electrostatics, Current Electricity, Rotational Dynamics, Heat Thermodynamics, SHM, Laws of motion, Work power energy.
Which topic has the highest weightage in JEE Physics?
Modern Physics has the highest weightage in JEE Physics, followed by HAT, Optics and Current Electricity.
Is JEE Main Physics tough?
JEE Main Physics is generally the most challenging section in JEE Main paper. Due to the nature of questions (which tests concepts understanding and application of logic) in JEE Main Physics, many candidates find the section harder than Chemistry and Math.
JEE Main Chemistry Weightage – FAQ
Which part of Chemistry is most important for JEE Main?
All three parts – Physical, Organic and Inorganic are very important for JEE Main. Physical Chemistry is based on formulas and definitions, Inorganic Chemistry gives you speed and Organic Chemistry is very scoring.
Is JEE Main Chemistry easy?
JEE Main Chemistry is moderate most of the time, neither easy nor difficult. Candidates find Organic Chemistry tough to master. Focus on NCERT to score well in JEE Main Chemistry.
Which part of chemistry has the highest weightage in JEE mains?
Chemistry topics with highest weightage in JEE Mains are : Transition Elements, Coordination Chemistry, Periodic table, Representative Elements, Gaseous State, Atomic Structure, Chemical Bonding, Chemical And Ionic Equilibrium, Nuclear Chemistry.
JEE Main Math Weightage – FAQ
What is the most important chapter of Maths for JEE mains?
The most important chapters of JEE Main Math are : Coordinate Geometry, Limits, Continuity and Differentiability, Integral Calculus, Complex Numbers, Quadratic Equation, Matrices and Determinants, Statistics and Probability, Three Dimensional Geometry, Vector Algebra.
Is JEE Main Maths hard?
More than hard, Math in JEE Main could be lengthy. The paper will have all types of questions – easy, moderate and tough. Speed is an important factor while solving Math, so you must practice a lot of problems to do well in JEE Main Mathematics.
JEE Main Important Topics – FAQ
Is it necessary to complete full syllabus for JEE Mains?
Not necessary, but it’s recommended to complete the full syllabus for JEE Mains. Atleast have a basic idea of each topic as the easy question can come in the paper from the topic you didn’t touch at all.
Should I study whole syllabus or important topics for JEE Mains?
If you have time in hand, then try to study the whole syllabus of JEE Mains. If you have less than 6 months remaining for JEE Mains, then study important topics first.
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