If you are planning to appear in the upcoming session, then you must know JEE Main chemistry chapter wise weightage as well as other subjects to make your prep more effective. In Paper 1 (BE/BTech), the chemistry section holds a total of 25 multiple-choice questions asked from physical, organic, and inorganic Chemistry.
On close analysis of JEE Mains chemistry chapter wise weightage over the past few years, it is found that the organic chemistry weightage in JEE Mains is increasing year by year. While in the last-minute preparation, aspirants should refer to the JEE Mains Chemistry Weightage, so that they prioritize the topics instead of giving time to low-weightage topics. We have shared the JEE Mains chemistry chapter wise weightage of the last few years on this page to lower the research time of aspirants
JEE Main Chemistry Chapter wise Weightage
The chemistry session of the JEE Main Paper 1 examination usually comprises 25 questions, which can be classified into three branches of chemistry: physical chemistry, Organic Chemistry, and Inorganic Chemistry.
As per the last year JEE Main chemistry chapter wise weightage, Organic Chemistry and Physical Chemistry have been seen to carry the highest weightage of questions, followed by a slightly lower but still sizeable weightage of questions from Inorganic Chemistry.
JEE Main Chemistry Paper Pattern
Before moving to the JEE Main Chemistry syllabus with weightage, let’s take a quick glance at the JEE Main Chemistry Paper Pattern below
| Parameter | Chemistry Paper Pattern |
|---|---|
| Mode of Exam | Computer-Based Test |
| Duration for Entire Paper | 3 hours (Physics + Chemistry + Mathematics together) |
| Total Questions | 25 questions (out of 75 in Paper-1) |
| Number of Sections | Two Sections |
| Section A | 20 Multiple Choice Questions (MCQs) |
| Section B | 5 Numerical Value Answer Questions |
| Numerical Questions | All 5 compulsory; no options to choose from |
| Total Marks | 25 × 4 = 100 marks |
| Marks per Question | +4 Marks for Each Correct Answer |
| Negative Marking | −1 for wrong answer |
Where to Solve JEE Mains Chemistry Weightage Questions?
As the exam is approaching, you should practice questions based on the JEE Mains chemistry chapter wise weightage. You will find the latest questions and answers in line with the chemistry chapter weightage in JEE Mains in the CollegeDost’s mock test.
Attempting mock tests regular basis helps you to identify your strong and weak topics. And also ensures to evaluate your conceptual clarity to the having having good Chemistry weightage for JEE Mains. Click on the link below to attempt the JEE Mains Mock Test Now
JEE Mains chemistry chapter wise weightage 2026 Session 1
Those aspirants who are going to appear in the upcoming April session must carefully review the session 1 JEE Mains Chemistry Chapter wise Weighatge before making a study plan. This year, the NTA conducted Paper 1 of the January Session starting from 21 Jan to 28 January. As per the analysis of the Chemistry JEE Mains Weightage, the organic chemistry weightage in JEE Mains is higher over all the other shifts. Take a look at the day-wise important chapters of JEE Mains Chemistry Syllabus given below
| Dates | JEE Main Chemistry Topics |
|---|---|
| 21 Jan 2026 | Organic, Physical Chemistry, Isomerism |
| 22 Jan 2026 | p-Block elements (3 questions), Coordination Compounds, Chemical Bonding, Biomolecules, and Organic Reaction Mechanisms. |
| 23 Jan 2026 | General Organic Chemistry (GOC), Biomolecules, Amines, Hydrocarbons, Coordination Compounds, Chemical Bonding, P-Block and D & F-Block Elements, Qualitative Analysis, Electrochemistry, Chemical Kinetics, Thermodynamics, Ionic Equilibrium, Structure of Atom, Solutions. |
| 24 Jan 2026 | Isomerism, Ionic equilibrium, GOC, Chemical bonding. Weightage of Physical Chemistry was more. |
| 28 Jan 2026 | Coordination Compounds, Amines, Chemical Kinetics, Ionic Equilibrium (Buffer), Inorganic Chemistry |
Chemistry Topic wise weightage in JEE Mains
Organic Chemistry questions have been seen to focus on reaction mechanisms and functional groups, Physical Chemistry questions on numerical problems, and Inorganic Chemistry questions on theoretical concepts and NCERT-based facts.
Physical Chemistry Chapter wise Weightage in JEE Mains
Physical Chemistry focuses on numerical concepts and problem-solving. Topics like thermodynamics, equilibrium, and electrochemistry frequently appear in the exam, making them important areas for scoring marks.
| Chapters | Total Questions | Weightage |
|---|---|---|
| Mole Concept | 1 | 3.30% |
| Redox Reactions | 1 | 3.30% |
| Electrochemistry | 1 | 3.30% |
| Chemical Kinetics | 1 | 3.30% |
| Solution & Colligative Properties | 1 | 3.30% |
| Atomic Structure | 2 | 6.60% |
| Chemical And Ionic Equilibrium | 2 | 6.60% |
| Thermodynamics & the Gaseous State | 2 | 6.60% |
Inorganic Chemistry weightage in JEE Mains
Inorganic Chemistry is more theory-based and involves conceptual understanding of periodic trends, chemical bonding, and coordination compounds. Regular revision and memorization of key concepts are important for scoring well. Check the Topic wise weightage of inorganic chemistry in JEE Mains
| Chapters | Total Questions | Weightage |
|---|---|---|
| Chemical Bonding | 2 | 6.60% |
| Solid-State And Surface Chemistry | 2 | 6.60% |
| Nuclear & Environmental Chemistry | 2 | 6.60% |
| Transition Elements & Coordination Compounds | 3 | 9.90% |
| Periodic Table | 3 | 9.90% |
Organic Chemistry Weightage in JEE Mains
Organic Chemistry tests reaction mechanisms, functional groups, and conceptual understanding of carbon compounds. Mastering basic concepts like GOC and stereochemistry helps in solving many questions easily.
| Chapters | Total Questions | Weightage |
|---|---|---|
| General Organic Chemistry | 1 | 3.30% |
| Stereochemistry | 1 | 3.30% |
| Hydrocarbon | 1 | 3.30% |
| Alkyl Halides | 1 | 3.30% |
| Carboxylic Acids & their Derivatives | 1 | 3.30% |
| Carbohydrates, Amino-Acids, and Polymers | 1 | 3.30% |
| Aromatic Compounds | 1 | 3.30% |
JEE Mains Chemistry Weightage Trends over Years
Undertanding JEE Main chemistry syllabus with weightage for Class 11 and 12 is beneficial as it helps to give extra attention to these from the beginning. By analyzing the JEE Mains Chemistry Weightage trends from the past five years (2021–2025), we can categorize chapters by their exam presence. This JEE Mains chemistry chapter wise weightage is essential for balancing your preparation across Physical, Organic, and Inorganic sections
Class 11 Chemistry weightage in JEE Mains
In Class 11, the Chemistry topics create the essential foundation for Class 12; thus, mastering these topics is important. Check out the Class 11 Chemistry weightage for JEE Mains 2026 below
| S.No. | Chapter Name | Weightage (%) |
|---|---|---|
| 1 | Equilibrium (Chemical & Ionic) | 4.44% |
| 2 | s-Block Elements | 4.16% |
| 3 | Chemical Thermodynamics and Energetics | 3.65% |
| 4 | Atomic Structure | 3.34% |
| 5 | Chemical Bonding and Molecular Structure | 3.34% |
| 6 | Hydrocarbons | 3.03% |
| 7 | Environmental Chemistry | 2.99% |
| 8 | Some Basic Concepts of Chemistry (Mole Concept) | 2.82% |
| 9 | Hydrogen | 2.82% |
| 10 | Purification and Analysis of Organic Compounds | 1.94% |
| 11 | Classification of Elements & Periodicity | 1.93% |
| 12 | States of Matter | 1.89% |
| 13 | The p-Block Elements (Group 13 & 14) | 1.79% |
| 14 | Redox Reactions | 1.75% |
| 15 | General Organic Chemistry (GOC) | 1.20% |
| 16 | Isomerism & IUPAC Nomenclature | 0.37% |
Class 12 Chemistry weightage in JEE Mains
Class 12 Chemistry themes have a larger aggregate weightage and appear more frequently in the “Section B” (Numerical-based) section of the paper. Aldehydes, Ketones, and Carboxylic Acids is officially the most significant chapter in the Chemistry curriculum (5.95%). Check out the Class 12 Chemistry weightage in JEE Mains 2026 below
| S.No. | Chapter Name | Weightage (%) |
|---|---|---|
| 1 | Aldehydes, Ketones and Carboxylic Acids | 5.95% |
| 2 | Coordination Compounds | 5.33% |
| 3 | The d and f-Block Elements | 4.69% |
| 4 | Solutions | 4.54% |
| 5 | Amines | 4.40% |
| 6 | Biomolecules | 3.99% |
| 7 | The p-Block Elements (Group 15 to 18) | 3.68% |
| 8 | Chemical Kinetics | 3.61% |
| 9 | Alcohols, Phenols and Ethers | 3.54% |
| 10 | General Principles & Isolation of Metals (Metallurgy) | 3.37% |
| 11 | Electrochemistry | 3.30% |
| 12 | Surface Chemistry | 2.99% |
| 13 | Haloalkanes and Haloarenes | 2.65% |
| 14 | Chemistry in Everyday Life | 2.20% |
| 15 | Polymers | 2.06% |
| 16 | The Solid State | 1.72% |
| 17 | Principles of Qualitative Analysis (Salt Analysis) | 0.50% |
How to Prepare for the JEE Main Chemistry Section
The JEE Main Chemistary Chapter wise weightage is the most crucial weapon in your last-minute preparation. Success in JEE Main Chemistry isn’t just about hard work; it’s about strategic allocation of time. Because the chemistry weightage in JEE Mains is spread across three distinct sub-disciplines, your preparation style must adapt to each.
Inorganic Chemistry Preparation Tips
Inorganic chemistry is often the fastest and most scoring section to complete during the exam. Most questions are derived directly from NCERT textbooks; thus, most of the students feel confident to tackle this section.
According to the JEE Mains chemistry chapter wise weightage, Ccoordination compoundsand Cchemical bondingare the heavy hitters, often accounting for 3–5 questions combined. Create a “Trend & Exception” chart. For example, while moving down a group usually increases atomic radius, there are specific anomalies in the d-block and p-block that the NTA loves to test.
Spend 30 minutes every morning reading NCERT. High chemistry weightage for JEE Mains in this section goes to those who can recall facts quickly.
Organic Chemistry Preparation Guide
The organic chemistry weightage in JEE Mains is approximately 33% to 36%. You cannot master this through rote memorisation alone. Start with General Organic Chemistry (GOC). If your understanding of inductive effects, mesomeric effects, and hyperconjugation is weak, you will struggle with the rest of the syllabus.
Most of the students feel confused about the numerous reaction mechanisms. Instead of memorising 500 reactions, learn the 10–15 core mechanisms (SN1, SN2, electrophilic addition, etc.). Keep a dedicated notebook for reactions like Aldol Condensation, Cannizzaro, and Hoffman Bromamide. These are frequently featured in the Chemistry JEE Mains Weightage analysis.
Physical Chemistry Preparation Tips
Physical chemistry usually dominates the “Section B” questions. In the JEE Main Syllabus, chapters like Thermodynamics, Equilibrium, and Electrochemistry carry significant JEE Main chemistry chapter wise weightage. You must know the formulas and, more importantly, the conditions under which they apply. Practise solving questions without a calculator. Many students lose marks not because they didn’t know the concept, but because they made a calculation error under pressure.
Conclusion
Knowing the Chapter-wise Weightage of Chemistry JEE Main is very helpful in developing a smart plan to prepare for higher marks. Students who analyse the JEE Mains Chemistry Chapter Wise Weightage can determine which topics are asked the most frequently, allowing them to allocate their study time more effectively. Using the JEE Main Chemistry Chapter-wise Weightage, Students Should Work To Prepare For Those Areas To Improve Their Chances Of Obtaining A High Score On The Exam.
Frequently Asked Questions
1. Are Physical or Organic Chemistry required to be emphasized for JEE Mains?
The ratio of weight given (to the two sections) is about the same (33-35 per cent, respectively), but Organic Chemistry is considered more important in multiple ways.
2. What is the highest-scoring chapter in Organic Chemistry?
The two chapters with the highest scoring possibilities are General Organic Chemistry and Hydrocarbons.Â
3. What is the total weightage of Chemistry in JEE Main?
In JEE Main, Chemistry carries 100 marks out of the total 300 marks, with 25 questions asked from the subject.
4. Which section has the highest weightage in JEE Main Chemistry?
Generally, organic chemistry and physical chemistry carry slightly higher weightage compared to inorganic chemistry, though the exact distribution may vary each year.
5. Which chapters are considered high-weightage in JEE Main Chemistry?
Some high-weightage chapters include Coordination Compounds, Hydrocarbons, Thermodynamics, Chemical Bonding, Electrochemistry, and Chemical Kinetics.
6. Â How can knowing chapter-wise weightage help in JEE Main preparation?
Understanding the JEE main chemistry chapter wise weightage helps students prioritize important topics, allocate study time effectively, and build a more focused preparation strategy.
7. Are low-weightage chapters important for JEE Main Chemistry?
Yes, even chapters with lower weightage should not be ignored because one or two questions from these topics can still impact the final score significantly.
8. Is NCERT enough for JEE Main Inorganic Chemistry?
Yes, most questions from Inorganic Chemistry in JEE Main are directly based on NCERT textbooks, so thorough revision of NCERT is essential.
9. What is the weightage of environmental chemistry in JEE Mains?
Since Environmental Chemistry has been deemed to no longer be predominantly part of the NTA syllabus, it is highly unlikely that JEE Main 2026 will contain any questions directly related to the same.
10.How many questions for JEE 2026 will be asked covering Chemistry in Everyday Life and Polymers?
 Chemistry in Everyday Life and Polymers have been reduced or eliminated, as with the Environmental Chemistry Section.
11. What is the weightage of organic chemistry in JEE Mains?
Organic Chemistry is a high-weightage section of JEE Main, accounting approximately 30-35% of the overall chemistry score. Topics covered include General Organic Chemistry (GOC), Hydrocarbons, Aldehydes, Ketones, Carboxylic Acids, and Alcohol/Phenol/Ether.
