JEE Main 2025 Chapter-Wise Weightage: Full Breakdown for January and April Sessions
Cracking JEE Main requires strategy, not just hard work. One of the smartest strategies is knowing which chapters carry the most weight. In this blog, we share a detailed chapter-wise and topic-wise weightage of the JEE Main 2025 paper for Physics, Chemistry, and Mathematics – across both January and April sessions.
This information is based on memory-based analysis from coaching institutes, since the NTA does not release chapter-wise official data.
Why Chapter-Wise Weightage Matters
Understanding which chapters are frequently asked and how many questions they carry helps you:
- Prioritise high-weight chapters
- Avoid over-preparing low-yield topics
- Allocate revision time smartly
- Improve your scoring efficiency in all three subjects
Let’s break it down subject-wise.
Physics Chapter-Wise Weightage in JEE Main 2025
Physics had a balanced mix of Mechanics, Optics, and Electromagnetism. January and April sessions showed consistent patterns in core topics.
January 2025 Physics Weightage
| Chapter | No. of Questions |
| Ray Optics and Optical Instruments | 23 |
| Units & Measurements | 20 |
| Fluid Mechanics | 16 |
| Rotational Motion | 14 |
| Electric Charges & Fields | 14 |
| Dual Nature of Matter & Radiation | 12 |
| Thermodynamics | 13 |
Key insight: Focus heavily on Optics, Mechanics, Thermodynamics, and Electrostatics.
April 2025 Physics Weightage
| Chapter | No. of Questions |
| Ray Optics and Optical Instruments | 19 |
| Rotational Motion | 13 |
| Electric Charges & Fields | 13 |
| Wave Optics | 9 |
| Thermodynamics | 9 |
Observation: Similar trend with strong emphasis on measurements and electromagnetism.
Chemistry Chapter-Wise Weightage in JEE Main 2025
Chemistry was a mix of Organic, Inorganic and Physical branches. The Organic portion had more weightage, particularly Coordination Compounds and reaction-based topics.
January 2025 Chemistry Weightage
| Chapter | No. of Questions |
| Coordination Compounds | 22 |
| Organic Chemistry – Basics & Techniques | 20 |
| Aldehydes, Ketones & Carboxylic Acids | 18 |
| Thermodynamics | 15 |
| Solutions | 16 |
Takeaway: Prioritise Coordination Chemistry, Reaction Mechanisms, and Physical Chemistry fundamentals.
April 2025 Chemistry Weightage
| Chapter | No. of Questions |
| Organic Chemistry – Basics & Techniques | 20 |
| Coordination Compounds | 18 |
| Equilibrium | 17 |
| Thermodynamics | 15 |
| d- and f-Block Elements | 15 |
Key point: Organic Chemistry continued to dominate, followed closely by Inorganic blocks and Equilibrium.
Mathematics Chapter-Wise Weightage in JEE Main 2025
Maths had heavy weightage from Algebra, 3D Geometry, Matrices, and Binomial Theorem.
January 2025 Maths Weightage
| Chapter | No. of Questions |
| 3-Dimensional Geometry | 18 |
| Matrices & Determinants | 18 |
| Differential Equations | 15 |
| Sequence & Series | 13 |
| Binomial Theorem | 11 |
Insight: Algebra and 3D Geometry are non-negotiable topics for high scores.
April 2025 Maths Weightage
| Chapter | No. of Questions |
| 3-Dimensional Geometry | 17 |
| Binomial Theorem | 13 |
| Matrices & Determinants | 15 |
| Sequence & Series | 13 |
| Complex Numbers | 8 |
Focus area: Make sure you are solid in Coordinate Geometry and Binomial expansion concepts.
Conclusion
The JEE Main 2025 analysis shows a reliable pattern of high-weightage chapters across both sessions. Whether you’re attempting JEE in the future or preparing for an improvement attempt, use this data to:
- Focus more on Ray Optics, Coordination Compounds, Matrices & 3D Geometry
- Reduce time spent on rarely asked chapters
- Boost your score using targeted revision
Knowing the important topics for JEE Main 2025 gives you a huge edge.
FAQs: JEE Main 2025 Weightage
Q1. Is this weightage official from NTA?
No. The NTA does not release chapter-wise breakdowns. These insights are based on memory-based analysis by top coaching institutes.
Q2. Were the same chapters important in both sessions?
Yes. Core chapters like Optics, Organic Chemistry basics, Matrices, and 3D Geometry were important in both January and April sessions.
Q3. Can I skip low-weightage chapters completely?
Not recommended. Cover them briefly, but prioritise high-yield chapters for best results.
Q4. Will this trend be the same for JEE 2026?
Patterns often repeat, but expect some variation. Still, these chapters are likely to remain important.
Q5. How should I revise based on this data?
Use this weightage to build a revision plan. Spend more time on chapters that carried 10+ questions, and solve previous year questions from them.
