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JEE Main Chemistry Chapter-Wise Weightage 2027

Find the most important Chemistry chapters for JEE Main 2027, with previous-year trends for Organic, Physical, and Inorganic Chemistry to help prioritize your preparation.
authorImageShrivastav15 Sept, 2026
JEE Main Chemistry Chapter-Wise Weightage 2026

JEE Main Chemistry Chapter-Wise Weightage 2027 helps candidates identify frequently asked and high-weightage chapters and plan their preparation more effectively. Based on previous years’ question paper trends, students can prioritize important topics across Physical, Organic, and Inorganic Chemistry while preparing for JEE Main 2027.

Understanding the chapter-wise weightage allows students to focus first on chapters that have consistently contributed a higher number of questions. This analysis covers important Chemistry chapters, subdiscipline-wise trends, and chapter-level question distribution to help students plan their revision and practice.

Also Check: JEE Main Chapter-wise Weightage for Physics 2026

JEE Main Chemistry Syllabus 2027 Overview

JEE Main Chemistry syllabus is broadly divided into three sections: Physical Chemistry, Inorganic Chemistry, and Organic Chemistry.

  • Physical Chemistry: Includes Some Basic Concepts of Chemistry, Atomic Structure, Chemical Bonding and Molecular Structure, Chemical Thermodynamics, Equilibrium, Redox Reactions and Electrochemistry, Solutions, and Chemical Kinetics.
  • Inorganic Chemistry: Covers Classification of Elements and Periodicity in Properties, p-block elements, d- and f-block elements, and Coordination Compounds.
  • Organic Chemistry: Includes Purification and Characterisation of Organic Compounds, Some Basic Principles of Organic Chemistry, Hydrocarbons, Organic Compounds Containing Halogens, Oxygen and Nitrogen, and Principles Related to Practical Chemistry.

Students should check the latest official JEE Main 2027 syllabus before finalizing their preparation strategy, as the applicable syllabus should always take priority over previous-year trends.

Also Check: JEE Main Syllabus 2026

JEE Main Chemistry Chapter-Wise Weightage 2027

The JEE Main Chemistry chapter-wise weightage is based on analysis of previous years’ question paper trends. The data can help students understand which chapters have appeared more frequently and where additional revision may be useful.

JEE Main Chemistry Chapter Weightage

Chapter Name

Question  No JEE Main 2025 January session

Question  No JEE Main 2025 April session

Organic Chemistry - Some Basic Principles and Techniques

20

20

Coordination Compounds

18

22

Aldehydes, Ketones and Carboxylic Acids

15

18

Thermodynamics

15

15

Equilibrium

17

10

Solutions

11

16

Chemical Kinetics

12

13

The d and f-Block Elements

15

9

Electrochemistry

14

9

Some Basic Concepts of Chemistry

11

11

Biomolecules

11

11

Haloalkanes and Haloarenes

14

7

Classification of Elements and Periodicity in Properties

14

6

Structure of Atom

10

9

Hydrocarbons

13

6

Amines

10

9

Alcohols, Phenols and Ethers

8

7

Chemical Bonding and Molecular Structure

8

6

Principles Related to Practical Chemistry

5

8

The p-Block Elements (Group 15 to 18)

4

6

The p-Block Elements

2

7

Redox Reactions

3

0

Also Check: JEE Main Syllabus 2026

Important: These figures represent previous-year question trends and should not be treated as a fixed prediction of the number of questions in JEE Main 2027.

Organic Chemistry Weightage in JEE Main

Organic Chemistry is one of the major search intents associated with JEE Main Chemistry weightage. Students should pay particular attention to chapters that have shown repeated question frequency in previous papers, including Organic Chemistry – Some Basic Principles and Techniques, Aldehydes, Ketones and Carboxylic Acids, Hydrocarbons, Haloalkanes and Haloarenes, Amines, and Alcohols, Phenols and Ethers.

The chapter-wise data above can be used to compare the frequency of questions across Organic Chemistry chapters rather than relying on a single predicted percentage.

Physical Chemistry Weightage in JEE Main

Physical Chemistry includes several calculation-based chapters that have contributed consistently to JEE Main Chemistry papers. Thermodynamics, Equilibrium, Solutions, Chemical Kinetics, Electrochemistry, Some Basic Concepts of Chemistry, and Structure of Atom are among the chapters covered in the previous-year analysis.

Students can use their previous-paper frequency along with their preparation level to decide which Physical Chemistry chapters require more practice.

Inorganic Chemistry Weightage in JEE Main

Inorganic Chemistry also contributes a significant number of questions to JEE Main Chemistry. Coordination Compounds, the d- and f-Block Elements, Classification of Elements and Periodicity in Properties, Chemical Bonding, and p-Block topics are important areas to include in revision.

Because question distribution can vary between sessions, students should use weightage as a prioritization tool rather than skipping chapters solely because they have a lower historical frequency.

Subdiscipline-Wise Question Trends in Chemistry

Previous-year data shows variation in the number of questions asked from Organic, Physical, and Inorganic Chemistry.

Subdiscipline-wise Question Trends in Chemistry

Year

Organic Chemistry

Physical Chemistry

Inorganic Chemistry

2025

169 questions

176 questions

130 questions

2024

228 questions

207 questions

165 questions

The data indicates that Physical Chemistry had the highest question count among the three sections in 2025, while Organic Chemistry had the highest count in 2024.

Class-Wise Distribution of Chemistry Questions

The distribution between Class XI and Class XII Chemistry has also varied across JEE Main sessions.

Class-wise Distribution of Chemistry Questions

Year

Class

April Session

January Session

2025

XI

90

113

XII

135

137

2024

XI

130

125

XII

170

175

These figures show why students should prepare Chemistry across both Class XI and Class XII topics instead of depending entirely on one class.

Chemistry High-Weightage Chapters for JEE Main 2027

The following chapters had a comparatively high number of questions across the January and April 2025 sessions in the supplied analysis.

Chapter Name

No of Question Asked In JEE Main 2025 (January And April Session)

The d and f-Block Elements

24

Chemical Kinetics

25

Solutions

27

Equilibrium

27

Thermodynamics

30

Aldehydes, Ketones and Carboxylic Acids

33

Coordination Compounds

40

Organic Chemistry – Some Basic Principles & Techniques

40

 

Among these chapters, Coordination Compounds and Organic Chemistry – Some Basic Principles & Techniques recorded the highest combined question count in the supplied 2025 data.

Students can use this list to prioritize revision, but the entire applicable syllabus should still be covered for JEE Main 2027.

Most Important Chemistry Chapters for JEE Main 2027

Based on the supplied previous-year analysis, students can give additional revision and question-practice time to:

  • Organic Chemistry – Some Basic Principles and Techniques
  • Coordination Compounds
  • Aldehydes, Ketones and Carboxylic Acids
  • Thermodynamics
  • Equilibrium
  • Solutions
  • Chemical Kinetics
  • The d and f-Block Elements

The priority should be based on both historical question frequency and the student’s own preparation level.

Study Material for JEE Chemistry Preparation

Students preparing for JEE Main 2026 can use these study materials offered by Physics Wallah. Use the links below to explore these study materials.

 

JEE Main Chemistry Chapter-Wise Weightage 2027 FAQs

What is the weightage of Organic Chemistry in JEE Main?

The exact number of Organic Chemistry questions can vary between JEE Main sessions. Previous-year data shows that Organic Chemistry has contributed a substantial share of Chemistry questions. Students should use chapter-wise trends to prioritize important Organic Chemistry chapters while preparing the complete syllabus.

What is the weightage of Physical Chemistry in JEE Main?

Physical Chemistry has consistently contributed a significant number of questions. In the supplied 2025 analysis, Physical Chemistry accounted for 176 questions compared with 169 from Organic Chemistry and 130 from Inorganic Chemistry.

What is the weightage of Inorganic Chemistry in JEE Main?

Inorganic Chemistry contributed 130 questions in the supplied 2025 analysis, compared with 165 in 2024. The distribution can vary from year to year, so students should prepare all applicable Inorganic Chemistry chapters.

Which part of Chemistry has the highest weightage in JEE Main?

The highest-weightage section can vary by year. In the supplied data, Physical Chemistry had the highest question count in 2025, while Organic Chemistry had the highest count in 2024.

How many questions come from Physical Chemistry in JEE Main?

The number varies across sessions and years. The supplied analysis recorded 176 Physical Chemistry questions in 2025 and 207 in 2024 across the analyzed papers.

Which are the high-weightage chapters for JEE Main Chemistry?

Based on the supplied 2025 combined-session data, Organic Chemistry – Some Basic Principles & Techniques and Coordination Compounds had 40 questions each, followed by Aldehydes, Ketones and Carboxylic Acids with 33 and Thermodynamics with 30.
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