High Weightage Chapters for JEE Mains 2026 Chemistry: Check Chapter Wise Weightage

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Pritish Samantaray

Content Writer | Updated on - Sep 26, 2025

The high weightage chapters for JEE Mains 2026 Chemistry are coordination compounds, chemical bonding, thermodynamics, equilibrium, and carbonyl compounds.

  • Apart from these, topics of class 11 like hydrocarbons, atomic structure, organic chemistry basics, and class 12 topics like electrochemistry, chemical kinetics, and p-block elements are also very important.
  • Preparing these chapters first and consistently revising them will help you to ensure a solid score in the Chemistry section of your JEE Mains exam.

In the JEE Main Chemistry section, 25 Questions, including 20 MCQs and 5 Numerically Asked Type Questions, with +4 marks given to each correct answer and -1 for each incorrect answer, which will contribute to a total of 100 marks in the JEE Main Exam.

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High Weightage Chapters for JEE Mains 2026 Chemistry from Class 11 Syllabus

Key Summary

  • Coordination compounds, chemical bonding, thermodynamics, equilibrium, and carbonyl compounds are the main topics of the chemistry paper.
  • To make your basics strong, you should concentrate your efforts on chemical bonding, hydrocarbons, thermodynamics, equilibrium, and organic chemistry.
  • The greatest scoring potential can be achieved if you work on the topics mainly from coordination compounds, aldehydes and ketones, electrochemistry, chemical kinetics, and p-block elements. These chapters are among the high weightage chapters for JEE Mains 2026 Chemistry.
  • To begin, you should get your basics clear from NCERT, then take help from the advanced JEE Mains books like N Awasthi for physical, MS Chauhan for organic, and JD Lee for inorganic, for the practice of more complicated problems.

High Weightage Chapters for JEE Mains 2026 Chemistry from Class 11 Syllabus

Focus on Chemical Bonding, Equilibrium, Hydrocarbons, and Thermodynamics first, as these topics not only have the highest weightage but also form the foundation for several chapters in Class 12.

Practising various numerical problems every day is a good practice for your Physical Chemistry chapters (Thermodynamics and Equilibrium).

NCERT should be the go-to book for your theory, and for more in-depth practice and problem-solving, use the standard JEE Mains books like OP Tandon or N Awasthi.

Chapter Weightage (Approx.) Why This Chapter is Important
Some Basic Concepts of Chemistry 2-3% Builds the foundation for mole concept and stoichiometry used in almost every numerical problem.
Atomic Structure 3-4% Key to understanding electronic configuration, quantum numbers and periodic trends that are repeatedly asked in the exam.
Chemical Bonding and Molecular Structure 5-6% High-scoring and important for predicting molecular geometry, hybridization and bond characteristics.
States of Matter 2-3% Useful for gas laws and kinetic theory; forms the base for Physical Chemistry numericals.
Thermodynamics 5-6% A crucial chapter with direct formula-based questions and concepts applied in Chemical and Ionic Equilibria.
Equilibrium 6-7% Covers chemical and ionic equilibrium; frequent numerical and conceptual questions are asked from this topic.
Redox Reactions 3-4% Important for balancing reactions, electrochemistry basics and direct numerical questions.
Hydrogen and Its Compounds 2-3% Easy-to-score chapter with direct factual questions.
The s-Block Element (Alkali and Alkaline Earth Metals) 4-5% Includes periodic properties, reactions and compounds of Group 1 and Group 2 elements; frequently tested in the paper.
The p-Block Element (Group 13 and Group 14) 4-5% Conceptual and factual, with consistent weightage in both Mains and Advanced.
Organic Chemistry - Some Basic Principles and Techniques 5-6% Builds the foundation for the entire Organic Chemistry syllabus; strong basics here help in advanced topics in Class 12.
Hydrocarbons 6-7% Frequently tested with straightforward questions from alkanes, alkenes, alkynes and aromatic hydrocarbons.
Environmental Chemistry 1-2% Small chapter but gives quick and easy marks if revised well.

High Weightage Chapters for JEE Mains 2026 Chemistry from Class 11 Syllabus
 

Check:

JEE Main Syllabus

High Weightage Chapters for JEE Mains 2026 Chemistry from Class 12 Syllabus

Start your preparation with High Weightage Chapters for JEE Mains 2026 Chemistry like Coordination Compounds, Aldehydes and Ketones, and p-Block Elements, as these topics have been the major source of multiple questions in recent years.

To maintain the accuracy in Physical Chemistry, one should work out numerical problems from every section of Electrochemistry, Solutions, and Chemical Kinetics every day.

For theory, use NCERT Chemistry, and for concept building and practice, use standard JEE Mains books like N Awasthi for Physical Chemistry, MS Chauhan for Organic Chemistry, and JD Lee for Inorganic Chemistry.

Chapter Weightage (Approx.) Why This Chapter is Important
Solid State 2-3% Short and scoring chapter; mostly direct theory-based questions appear.
Solutions 4-5% Numerical-based questions are frequently asked, especially on concentration terms and colligative properties.
Electrochemistry 5-6% Conceptual and numerical; includes cell reactions, Nernst equation and conductivity questions.
Chemical Kinetics 4-5% Easy to score with formula-based numericals and integrated rate law concepts.
Surface Chemistry 2-3% Direct questions on adsorption and catalysis; simple but must-read for quick marks.
p-Block Elements (Group 15, 16, 17 and 18) 6-7% High weightage with factual and conceptual questions; focus on trends, properties and reactions.
d-Block Elements (Transition Elements) 4-5% Includes properties, electronic configuration and reactions; repeated almost every year.
f-Block Elements (Lanthanides and Actinides) 2-3% Important for trends and basic properties; factual but simple to revise.
Coordination Compounds 6-7% High-scoring topic with direct questions on IUPAC naming, bond theories and isomerism.
Haloalkanes and Haloarenes 4-5% Frequently tested with predictable reaction-based questions.
Alcohols, Phenols and Ethers 4-5% Common in Organic Chemistry; focuses on reaction mechanisms and conversions.
Aldehydes, Ketones and Carboxylic Acids 6-7% Reaction mechanisms and name reactions are commonly tested in JEE Mains.
Amines 3-4% Important for preparation; easy questions from preparation methods and properties are often asked.
Biomolecules and Polymers 2-3% Short and scoring chapters with straightforward theory-based questions.
Chemistry in Everyday Life 1-2% Very short chapter with direct fact-based questions, ideal for quick revision before the exam.

High Weightage Chapters for JEE Mains 2026 Chemistry from Class 12 Syllabus

Also Read

JEE Main Reduced Syllabus 2026

Overall High Weightage Chapters for JEE Mains 2026 Chemistry

To begin with, the study of Chemistry from NCERT will be very helpful to you because most of the questions in the Inorganic and Organic sections are strictly based on NCERT.

First of all, you must improve your advanced problem-solving skills by using standard JEE Mains books like N Awasthi for Physical Chemistry, MS Chauhan for Organic Chemistry, and JD Lee for Inorganic Chemistry.

To get the maximum benefit out of, JEE Mains syllabus, you should prepare the topics of reaction mechanisms, periodic trends, and numerical problem-solving as these areas have been given high weightage in JEE.

Physical Chemistry: High Weightage Topics

Topic Weightage (Approx.) Why This Topic is Important
Thermodynamics 5-6% Core topic; concepts are applied in other areas like Chemical Equilibrium and Electrochemistry.
Equilibrium 5-6% Covers both chemical and ionic equilibrium with frequent numericals in the exam.
Electrochemistry 5-6% Numerical and conceptual; includes Nernst equation, cell potential and conductivity.
Chemical Kinetics 4-5% Formula-based numericals make this an easy scoring topic.
Solutions 4-5% Questions on molarity, molality and colligative properties are asked regularly.
 

Check:

JEE Main Exam Pattern

Organic Chemistry: High Weightage Topics

Topic Weightage (Approx.) Why This Topic is Important
General Organic Chemistry (GOC) 6-7% Foundation for all Organic Chemistry; required to understand mechanisms and reactions.
Hydrocarbons 5-6% Covers alkanes, alkenes, alkynes and aromatic compounds; frequent direct questions.
Haloalkanes and Haloarenes 4-5% Important for substitution and elimination mechanisms.
Alcohols, Phenols and Ethers 4-5% Reaction mechanisms and conversions appear often in exams.
Carbonyl Compounds (Aldehydes and Ketones) 6-7% Crucial for name reactions and product predictions; highly scoring.
Amines 3-4% Straightforward questions on structure, basicity and preparation methods.
 

Read More:

JEE Main Chemistry Exam Pattern

Inorganic Chemistry: High Weightage Topics

Topic Weightage (Approx.) Why This Topic is Important
Chemical Bonding and Molecular Structure 5-6% Fundamental for hybridization, molecular geometry and bond concepts; appears every year.
Coordination Compounds 6-7% Covers IUPAC nomenclature, bonding theories and isomerism; high scoring with regular practice.
p-Block Elements (Group 15, 16, 17, 18) 6-7% Conceptual and factual questions; requires strong memorization of trends and properties.
d-Block Elements (Transition Metals) 4-5% Key for electronic configuration, oxidation states and properties.
f-Block Elements 2-3% Basic but scoring if revised thoroughly.

Also Read

Detailed JEE Mains Syllabus

Insights from Quora For High Weightage Chapters for JEE Mains 2026 Chemistry

If one would analyze the discussion on Quora about the high weightage chapters for JEE Mains 2026 Chemistry, a consistent pattern would be seen in the advice given by toppers and educators.

Insights from Quora For High Weightage Chapters for JEE Mains 2026 Chemistry
Insights from Quora For High Weightage Chapters for JEE Mains 2026 Chemistry

Also Read

JEE Main Preparation Strategy

What is the JEE Mains 2026 Exam Pattern?

JEE Mains exam is conducted by the National Testing Agency (NTA) and follows a fixed structure every year, covering Physics, Chemistry, and Mathematics equally.

Each subject includes 5 numerical questions, and these questions are without negative marking.

Each of Physics, Chemistry, and Mathematics had one-third of the total marks, and thus it was very important to have a proper and balanced preparation of the three subjects.

The exam is held in several sessions, and to be fair, scores are normalized.

The exam is conducted in English, Hindi, and regional languages as per the NTA notification.

JEE Mains 2026 Exam Overview

Particulars Details
Exam Conducting Body National Testing Agency (NTA)
Mode of Exam Computer-Based Test (CBT)
Total Papers Paper 1 (B.E./B.Tech) and Paper 2 (B.Arch/B.Planning)
Subjects Physics, Chemistry and Mathematics
Duration 3 hours (180 minutes)
Total Marks 300
Marking Scheme +4 marks for every correct answer, -1 mark for every wrong answer

Section-wise Structure of JEE Mains 2026 Paper 1 (B.E./B.Tech)

Section Number of Questions Marks per Question Total Marks Time Allocation
Physics 25 (20 MCQs + 5 Numerical) 4 100 1 hour
Chemistry 25 (20 MCQs + 5 Numerical) 4 100 1 hour
Mathematics 25 (20 MCQs + 5 Numerical) 4 100 1 hour
Total 75 - 300 3 hours

Also Read

High Weightage Chapters for JEE Mains 2026 Chemistry FAQs

Ques. Which chapter in chemistry has the highest weightage in JEE Mains?

Ans. In your High Weightage Chapters for JEE Mains 2026 Chemistry preparation, Coordination Compounds and Organic Chemistry have been the main sources of the highest weightage in the whole Chemistry subject.

One of the most recurrent topics of the paper is Calculations from Physical Chemistry, such as Thermodynamics and Equilibrium.

Ques. Is JEE Mains 2026 going to be tough?

Ans. JEE Mains exam difficulty is largely consistent throughout the years; however, the challenge of the exam will be either tough or easy depending on the quality of your preparation.

To get a good grip on the JEE Mains 2026 Chemistry, you must focus on the fundamentals, practice more questions on the high-weighting topics, and then you’ll find the exam is more manageable.

Ques. Is the JEE syllabus reduced for 2026?

Ans As of now, the JEE Chemistry syllabus as well as the entire JEE Mains syllabus have not changed compared to 2025.

Refer to the official NTA website for the latest updates to always be informed.

Ques. Which IIT is making 2026 paper?

Ans. NTA is in charge of organizing and conducting the JEE Mains examination, not by any IIT.

JEE Advanced is held annually by one of the IITs.

Ques. What is the toughest chapter in Chemistry for JEE?

Ans. A great number of students label the Physical Chemistry section to be the most difficult part of JEE preparation. Especially the Thermodynamics and Chemical Equilibrium topics, because of the large number of involved numerical.

Organic Chemistry, the study of reaction mechanisms of Carbonyl Compounds and Aromatic Chemistry, has been seen as the most difficult one.

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