Important Do or Die Chapters and Topics for JEE Mains 2025 Preparation
Joint Entrance Exam (JEE) Main 2026 ( JEE Main )
Registration - 31 Oct '25 - 27 Nov '25
JEE Main 2025 exam will be held in two sessions in January and April. To be among the top scorers of the JEE Mains exam is the dream of every engineering aspirant. However, with the huge JEE Main syllabus, many students find it difficult to cover each topic from all three subjects. To help candidates with their preparation, we have compiled a list of "Do or Die chapters for NTA JEE Mains 2025" that can be considered the most important chapters/topics from the exam point of view.
The list of important topics for JEE Main 2025 can be segregated into two parts: low-weightage and high-weightage topics from Physics, Chemistry, and Mathematics. The analysis provided below has been done after recommendations from various experts and based on the previous year JEE Main question papers. JEE Main exam is organized by the National Testing Agency (NTA) every year for admission to NITs, IIITs, CFTIs, and SPAs of India.
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- How to Prepare for JEE Main 2025 Physics, Chemistry, and Mathematics?
- Important Chapters for JEE Main 2025
- FAQs related to JEE Main Do or Die Chapters
How to Prepare for JEE Main 2025 Physics, Chemistry, and Mathematics?
JEE Main 2025 Physics Paper
Below are the few points that the candidates must note while preparing for JEE Main 2025 Physics paper.
- Candidates must study all the topics which are mentioned in the JEE Main syllabus Thoroughly with special attention to "Physical Quantities" and "Vector treatment".
- According to the experts, questions from semiconductor devices, electromagnetic waves, communication systems, etc are usually simple and straightforward. A thorough understanding of NCERT textbooks on such topics is usually sufficient to solve questions in JEE Main.
JEE Main 2025 Chemistry Paper
The Chemistry paper is divided into three sections: Physical, Organic, and Inorganic. Check some important points to be noted while preparing:
As per students who appeared in JEE Main 2024 session 1 exam, and the subject experts from various coaching institutes - January 29 shift 1 paper was the toughest in comparison to other shift papers. Many students also found January 27 shift 2 exam difficult.
However, students must note that JEE Main question papers are set at similar difficulty level for all shifts and sessions. There may come a few questions with difficulty level higher than the other.
The JoSAA 2025 choice filling window will open with the registration window on June 3, 2025. Candidates will be able to register and then fill the choices of courses and colleges based on their JEE Main/Advanced ranks and category.
- In physical chemistry, candidates must keep a note of all formulas related to atomic structure, ionic equilibrium, solid-state, electrochemistry and thermos chemistry, etc.
- Inorganic chemistry candidates must focus on reactions that they have come across and their mechanisms.
- Experts suggest that in in-organic chemistry candidates must ensure to learn the formulas or ores and composition of alloys which are often asked in objective type questions.
JEE Main 2025 Mathematic Paper
Mathematics experts have suggested the following points to score higher marks in the paper:
- A list of Formulae and important concepts must be kept in handy
- A good number of questions are expected from Co-ordinate Geometry, Algebra, Trigonometry, Calculus, Vector, and 3-D Geometry in the examinations
| JEE Main Mock Test 2025 | JEE Main 2025 Preparation Tips |
Important Chapters for JEE Main 2025
The entire list of important Chapters of Physics, Chemistry, and Mathematics is given below.
Do or Die Chapters for JEE Main 2025 Mathematics
| High Weightage |
Low Weightage |
|---|---|
| 3 Dimensional Geometry |
Differential Equation |
| Vectors |
Differentiation |
| Determinant & Matrices |
Trigonometric Equation |
| Sequence & Series |
Statistics |
| Straight Line |
Mathematical Logic |
| Circle |
Set & Relation |
| Probability Distribution (Binomial Mean & Variance) |
Height & Distance |
| Definite Integral & Area Under the Curve |
Trigonometric Ratio & Functions |
| Limits, Continuity & Differentiability |
Properties of Triangle |
| Functions |
Permutation & Combination |
| Application of Derivatives |
Indefinite Integral |
| Conic Sections |
|
| Complex Number |
|
| Quadratic Equation |
|
| Binomial Theorem & M. I. |
|
Do or Die Chapters of JEE Main 2025 for Chemistry
| High Weightage |
Low Weightage |
|---|---|
| Atomic Structure |
Chemical Equilibrium |
| Gaseous & Liquid State |
Redox & Volumetric Analysis |
| Electrochemistry |
Solutions |
| Chemical Kinetics |
Metallurgy |
| Nuclear & Surface Chemistry |
Qualitative Analysis |
| Chemical Bonding |
Hydrocarbons |
| d-Block Elements |
Mole Concept |
| Co-ordination Compound |
Ionic Equilibrium |
| Alkyl Halides |
Solid State |
| Aromatic Compounds |
s-Block Elements- removed |
| Thermodynamics |
Periodic Classification |
| p-Block Elements |
Classification & Nomenclature |
| General Organic Chemistry |
Alcohol & Ether |
| Isomerism |
Nitrogen Compounds & Aliphatic Amines |
| Aldehydes and Ketones |
Biomolecules & Polymers |
| Carboxylic Acids & Its Derivatives |
|
Do or Die Chapters of JEE Main 2025 for Physics
| High Weightage |
Low Weightage |
|---|---|
| Heat & Thermodynamics |
Heat Transfer |
| Ray Optics |
Fluids |
| Electromagnetic Waves |
Nuclear Physics & X-Rays |
| Semiconductors |
Work, Energy & Power |
| Error & Instrument Analysis |
Units & Measurements |
| Gravitation |
Dual Nature of Matter & Radiation |
| Wave Optics |
Circular Motion |
| Photoelectric Effect |
Center of Mass & Collisions |
| Oscillations |
Communication Systems-removed |
| Electromagnetic Induction & Alternating Current |
Laws of Motion |
| Rotation |
|
| Kinematics |
|
| Electrostatics |
|
| Current Electricity & Capacitors |
|
| Properties of Matter |
|
| Magnetic Effects of Current & Magnetism |
|
| Bohr’s Atomic Model |
|
| Waves & Sound |
|
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Students are not allowed to carry calculators inside the exam centre in JEE Main exam. Students can use the virtual calculator available on the screen during the exam. Virtual calculators will be available on the computer screen of students during the JEE Main exam.
The total duration of JEE Main exam is 3 hours and the exam is conducted continuous without any break. Candidates have to enter the exam hall as per the scheduled time and can leave exam hall only after the completion of paper. The exam will have a total of 75 questions from 3 subjects, Physics Chemistry and Mathematics.
Registration for Session 1 is open from October 31 to November 27, 2025. JEE Main exam 2026 session 1 will be conducted from January 21 to 30, 2026 and session 2 will take place from April 1 to 10, 2026. Session 2 registration will open up later.
| JEE Main Chapterwise Weightage | Best Books for JEE Main 2025 Preparation |
FAQs related to JEE Main Do or Die Chapters
Q. Which chapters are most important in JEE Mains?
A. Chapters like Rotational Motion, Thermodynamics, SHM, Electrostatics, Magnetism, Optics, and Modern Physics among others are important in Physics. In Chemistry Chemical bonding, Electrochemistry, Coordination compound, Thermodynamics & thermochemistry, etc are important. In Mathematics, Complex Number, Conic Section, Circle, Calculus, Vector & 3 D, Probability, Trigonometric Equation etc. Read more.
Q. Which chapters can be skipped for JEE Mains?
A. In exams like JEE Main, one should not try to skip a single chapter while preparing. Students must cover the whole syllabus thoroughly as the questions can be asked from any topic
Q. Which is the most scoring subject in JEE mains?
A. Chemistry is considered as the most scoring subject with an average score of around 35 marks; Mathematics on the other hand is the most difficult to score off averaging a little over 25.
Q. Is stoichiometry important for JEE?
A. Yes, it is for sure!! Stoichiometry may even cover a major part of physical chemistry in the mains paper.
Q. Is there any specific book for JEE Main preparation comprising all subjects?
A. Not one book but topic-specific books should be referred by candidates in order to get the best of all.
Q. With 96 percentile in which NIT will I get?
A. Candidates can get admission to NIT Mizoram and NIT Nagaland. Read here to know the detailed analysis and other college options
Q. Is 200 a good score in JEE Mains?
A. Yes, 200 is considered good in JEE Mains if you want to get into top NITs and IIITs. Read more
Q. In JEE Mains 2023, what is the weightage of class 11 and 12 syllabi?
A. It is nearly 49% for class 11 and 51% for the class 12 syllabus.
Q. What is the weightage of modern physics in JEE Mains?
A. The weightage for modern physics in JEE Main is 20-25%.
Q. Can class 11 students give JEE Mains?
A. No, candidates have to pass or appear in the Class 12 examination to sit for JEE Mains exam.
Q. Is Class 12 marks important for JEE Mains?
A. Candidates must note that class 12 marks have no weightage in the preparation of JEE Main ranks & percentile. The ranks will be determined based on their score in the entrance exam. However, for admission into NITs, IIITs, CFTIs the class 12 board exam scores will be taken into account.
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