Low & High Weightage Chapters for JEE [2025]

The Joint Entrance Exam (JEE) is the dream ticket to top engineering colleges in India and now it is experiencing the highest number of applications every year.  Well, the exam paper will touch the hardest origins to keep up with the competition in JEE. How can you deal with that? Well, it’s simple, understanding High Weightage Chapters for JEE and planning your JEE 2025 journey is the only key step you need to follow as a beginner. Hence, we decided to give you all the insights about high and low weightage chapters for JEE. So, let’s get started!

JEE may be one of the toughest exams out there, but the major reason why most students fail to achieve the desired rank is the negligence of weightage criteria. So, for those who need to understand or need a helping hand regarding the high weightage chapters for JEE Mains 2025, this blog provides a simple way to start their preparation. So, dive into it.

JEE Mains High Weightage Chapters

Unlike NEET or any other entrance exam, JEE Main follows a simple and equal portion of marks shared over all three subjects. Besides, the JEE Main Paper 1 (B.Tech) majorly focuses on the NCERT modules. So, here is the subject-wise list of high weightage chapters for JEE Mains 2025 from classes 11th and 12th for you to focus on to score high:

Physics High Weightage Chapters For JEE Mains

Physics is the ultimate score-decider of the JEE clan. This subject is considered the toughest due to its complex nature with both theory and theory-based advanced questions in both JEE Main and JEE Advanced. Here are the major topics you need to focus to crack the exams:

Class 11 –

1. Kinematics is the top priority chapter which focuses on concepts like Motion in a Straight Line, Motion in a Plane, etc. From this chapter, you can expect at least 2 to 3 questions with both fundamental theory concepts of motion and problem-oriented complex topics in mechanics and dynamics.
2. Friction and Newton’s Law-based problems are quite common in JEE Main from the Laws of Motion Chapter. You can expect 2-3 covering complex problems from mechanics.
3. Work, Energy, and Power, a simple fundamental-based chapter covers at least 2 to 3 questions in JEE. You have to focus on topics and problems surrounding concepts like the Work-Energy Theorem, Conservation of Energy, Energy transformations, and more.
4. Gravitation is one of the JEE Mains high weightage chapters in 2025 that majorly focuses on concepts and formula-based questions from celestial mechanics and satellite motion. JEE Main paper comes with at least 1 or 2 questions covering the Universal Law of Gravitation.

Class 12 –

1. The JEE paper covers most of the 12th topics like Electric Charges and Fields and capacitance from the Electrostatics chapter with higher weightage. You can expect 2-3 tricky questions dealing with both fundamental understanding and formulae focusing on electric forces and fields.
2. Current Electricity is another high-weightage chapter for JEE Mains 2025 from 12th Physics. Usually, the makers focus on the problem-oriented questions in JEE covering topics like Ohm’s Law, Kirchhoff’s Laws, and other electrical properties.
3. Optics is the topic that students should focus on to get easy marks in JEE, as it covers 2 to 3 questions almost every year. The two major topics (Ray Optics and Wave Optics) come with questions covering light behavior and optical instruments.
4. Topics like Atomic Models are very important in Modern Physics from the 12th Physics module. This chapter covers most;y 3 questions focusing on quantum mechanics and atomic structure.

Chemistry High Weightage Chapters For JEE

Chemistry is often called a score-getter in JEE. This is the only subject that focuses on fundamental knowledge testing. So, mostly the students can expect in-depth theoretical-based questions from this subject. So, if you are proficient in NCERT, you can score high in Chemistry. Now, let’s take a look at all the JEE Mains high weightage chapters 2025 from Chemistry:

Class 11 –

1. Basic Concepts of Chemistry is the primary chapter that focuses on topics like Stoichiometry. With a simple understanding of chemical reactions and calculations around mole concepts, you can answer at least 2 questions from this chapter.
2. Chemical Bonding and Molecular Structure is another important chapter from 11th Chemistry which covers at least 2 to 3 questions in JEE. Questions covering Hybridization, shapes, and properties of molecules are quite common in this test.
3. Thermodynamics is a simple yet reaction-oriented topic that easily covers 2 to 3 questions in JEE. The major topics you should focus on in this chapter are the First Law of Thermodynamics, Enthalpy, and Entropy.
4. Equilibrium is another complex chapter that focuses primarily on equilibria reactions that come with a weightage of at least 2 questions in the final exam.

Class 12 –

1. Solid State is the first chapter of the 12th class that comes with a weightage of 1 to 2 questions based on topics like Unit Cells covering all the properties of solids.
2. The Solutions chapter focuses on topics like Raoult’s Law, Colligative Properties, and other behavioral analyses of solutions. You can expect at least 2 questions from this chapter.
3. Electrochemistry covers at least 2 or 3 questions in the JEE Main final exam with a special focus on equations and reactions related to Nernst Equation and other electrochemical processes.
4. Coordination Compounds is also an important chapter from 12th Chemistry. Even though this chapter discusses minimal topics like Nomenclature, Isomerism, and other complex compound properties, you can still expect 1 or 2 tricky questions testing your in-depth knowledge.

Mathematics High Weightage Chapters For JEE

Mathematics from class 11th and 12th NCERT textbooks sometimes cover the whole JEE papers. So, make sure you become proficient in the following high-weightage chapters before opting for reference books:

Class 11 –

1. Sets, Relations, and Functions is the most basic yet one of the high-weightage chapters of JEE 2025. You just need to be proficient in topics like Relations, and Functions including Graphs. At last, you can ask a maximum of 2 questions from this fundamental chapter.
2. You can expect complex algebraic problems from Complex Numbers and Quadratic Equations in the upcoming JEE. Focus on every algebraic expression and technique to solve 2 to 3 questions in the upcoming test. Argand plane is one of the critical topics from this chapter.
3. The permutations and Combinations chapter comes with at least 2 questions in the final exam. Be ready with all the fundamental Principles of Counting to ace these questions in the finals.
4. You can expect at least 2 questions from the Binomial Theorem chapter. All you need to do is practice all the techniques in expanding expressions and solving algebraic problems.

Class 12 –

1. Calculus has been the highest-weightage topic in mathematics for years. You should master all the techniques and fundamentals in problem-solving methods from topics like Limits and Continuity, Differentiation, and Integration. You can expect a maximum of 5 questions from this chapter. So, make sure this chapter is at the top of your prep list.
2. Vectors and 3D Geometry covers about 2 to 3 questions in the final exam. Problems related to Vector Algebra, Three-Dimensional Geometry, and spatial relationships are common ones you can expect from this chapter.
3. Matrices and Determinants involve about 3 questions in JEE. All you need to do is practice multiple linear equations and complex matrix operations from topics like types of Matrices, Determinants, and their Properties.
4. Probability also involves some tricky question arrangements navigating through topics like conditional probability, Bayes’ Theorem, and other uncertainty events. You can answer about 2 questions if you master this chapter.

Low Weightage Chapters for JEE Mains

Since we have only discussed the highest-weightage topics above, it’s also advisable to check out some low-weightage topics as well for backup. Why? Because the NTA might not follow the same weightage sheet, and also chances of testing limits with unimaginable questions are obvious in JEE papers, especially with the current competition. Hence, we are giving you all the low-weightage chapters for JEE mains 2025:

Low Weightage Chapters For JEE in Physics 

There are a few chapters from physics that don’t carry much weightage but still have a big impact on the final score. Here are a few of the low weightage chapters for JEE 2025 you should be focus on:

Class 11 –

1. Units and Measurements- A fundamental topic, which is quite rare to be found in JEE Papers. Sometimes the NTA might cover important topics like Dimensional Analysis, Error Analysis, and more in a maximum of 1 question.
2. Mechanical Properties of Solids– It’s another basic chapter with very important topics like Elastic Moduli. Expecting 1 question in JEE Main or JEE Advanced is also rare in this chapter.
3. Mechanical Properties of Fluids- Mostly NTA doesn’t consider this chapter. However, practice topics Pascal’s Law, Bernoulli’s Principle, and their applications as a backup.

Class 12 –

1. Semiconductors- Very rare chapter to be found in JEE, as it only focuses on simple topics like Diodes, Transistors, and their applications. You may find 1 question from this in very rare cases.
2. Communication Systems- This chapter is very simple to be found in JEE Paper with Modulation and Demodulation being the only important topics.

Low Weightage Chapters For JEE in Chemistry

Chemistry has many fundamental topics that don’t carry much weight in JEE.  However, the makers now are focused on unimaginable questions that are easy yet rare, as most students doesn’t focus on the low-weightage chapters. Here are such chapters you need to focus on to avoid losing marks in JEE Main and JEE Advanced 2025:

Class 11 –

1. Hydrogen-  You may see 1 question from Isotopes of Hydrogen or Hydrogen Bonding topics in very rare cases.
2. Environmental Chemistry- There is no scope of complexity in this chapter. Green Chemistry may cover 1 question only if the NTA decides.
3. Redox Reactions- Comprises very fundamental topics like Oxidation-Reduction reactions, which may not be suitable to be featured in JEE Main or Advanced.

Class 12 –

1. Polymers- Very basic topics. Focus on topics like polymer chemistry and its applications as a backup.
2. Biomolecules- No scope even with theory-based questions but try to visit proteins and carbohydrate sections.

Low Weightage Chapters For JEE in Mathematics

There are a few chapters in mathematics that carry lesser weightage in direct questions from JEE. However, the following chapters may help you with some tricky questions, as the makers of Mains and Advanced create complex papers with multiple concepts in a single question. So, you have to be proficient in the following chapters to crack the code of complexity in the JEE 2025 exams:

Class 11 –

1. Mathematical Reasoning- This may not include direct questions but reasoning skills will help you with other tricky questions. So, practice all the Logical Connectives before the final exam. You can also expect 1 question in rare cases.
2. Statistics- This topic is also rare in JEE Main. However, practicing the techniques of Central Tendency and Dispersion may help you with other tricky questions, especially in JEE Advanced.
3. Trigonometric Equations- Very foundational, rare to find in JEE Main, and may be helpful in solving advanced trigonometric concepts in JEE Advanced.

Class 12 –

1. Inverse Trigonometric Functions- Very rare to be found in both JEE Main and Advanced. But might help in solving advanced trigonometric questions, especially in JEE Advanced.
2. Linear Programming- Very rare in Mains. You can see some LLP-related problems in JEE Advanced.

High Weightage Chapters for JEE Advanced

First of all, there is no fixed weightage for either JEE Main or Advanced. However, we made this list based on the previous papers. The syllabus of the JEE Main and JEE Advanced have been almost the same over the years. The weightage of the chapters will also be the same. However, the JEE Advanced paper usually navigates from one chapter to another in a single question itself. That is why, we listed every high and low weightage chapter above. So, for the Advanced exam, you need to focus on each and every chapter and topic we listed above. At last, the NTA doesn’t follow specific High Weightage chapters for JEE Advanced. But we can assure you that mastering the above topics will help you build a strong foundation with the required advanced problem-solving skills before moving into the reference books.

Conclusion

In conclusion, the reason why we include all the High & Low Weightage Chapters for JEE in this blog is that you can get a clear picture of what to read in one place. Also, remember that following only high-weightage chapters for JEE Mains 2025 is not enough, as the NTA doesn’t guarantee us anything about fixed high or JEE low weightage chapters. So, try to explore every little detail of the chapters we discussed here at sub-topic levels so that you can solve any type of advanced question in both JEE Main and JEE Advanced.