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GATE Chemistry Subject Wise Weightage 2027: As a GATE aspirant, you must also be looking for GATE chemistry subject wise weightage 2027! This is the right place and look no further. GATE chemistry weightage is a smart resource to include in your study plan. IIT Madras has released the GATE 2027 Exam schedule and syllabus for all papers, including Chemistry. You must prioritize the high weightage chapters and prepare your time table accordingly. In this article, we have given you the last 5 years chpaterwise weightage along with recent GATE exam analysis. Candidates can use all the resources given in this article to prepare for their exam effectively.
We have given you the complete chapter-wise segregation of GATE chemistry 2026 question paper. As it is the recent years data, it will help you understand what type of chapters have been prioritized in GATE exam.
| Section | Number of Questions | Weightage |
|---|---|---|
| General Aptitude | 10 | 15.38% |
| Organic Chemistry | 17 | 26.15% |
| Inorganic Chemistry | 15 | 23.08% |
| Physical Chemistry | 23 | 35.38% |
| Grand Total | 65 | 100.00% |
| Chapter Name | Number of Questions | Weightage |
|---|---|---|
| Structure | 5 | 7.69% |
| Group Theory | 3 | 4.62% |
| Spectroscopy | 3 | 4.62% |
| Equilibrium | 6 | 9.23% |
| Kinetics | 2 | 3.08% |
| Surfaces and Interfaces | 2 | 3.08% |
| Total | 21 | 32.31% |
| Chapter Name | Number of Questions | Weightage |
|---|---|---|
| Main Group Elements | 1 | 1.54% |
| Transition Elements | 4 | 6.15% |
| Lanthanides and Actinides | 1 | 1.54% |
| Organometallics | 4 | 6.15% |
| Radioactivity | 1 | 1.54% |
| Bioinorganic Chemistry | 2 | 3.08% |
| Solids | 1 | 1.54% |
| Instrumental Methods of Analysis | 2 | 3.08% |
| Total | 16 | 24.62% |
| Chapter Name | Number of Questions | Weightage |
|---|---|---|
| Stereochemistry | 3 | 4.62% |
| Reaction Mechanisms | 2 | 3.08% |
| Organic Synthesis | 6 | 9.23% |
| Pericyclic Reactions and Photochemistry | 2 | 3.08% |
| Heterocyclic Compounds | 1 | 1.54% |
| Biomolecules | 1 | 1.54% |
| Experimental Techniques in Organic Chemistry | 3 | 4.62% |
| Total | 18 | 27.69% |
| Chapter | Number of Questions | Weightage |
|---|---|---|
| Equilibrium | 6 | 9.23% |
| Organic Synthesis | 6 | 9.23% |
| Structure | 5 | 7.69% |
| Transition Elements | 4 | 6.15% |
| Organometallics | 4 | 6.15% |
| Stereochemistry | 3 | 4.62% |
| Group Theory | 3 | 4.62% |
| Spectroscopy | 3 | 4.62% |
| Experimental Techniques in Organic Chemistry | 3 | 4.62% |
The GATE Chemistry Subject Wise Weightage consists of a vast syllabus area of Chemistry discipline. The table below will provide you with the last 5 years subject wise weightage from 2021 to 2025. All the chapters given below are included in GATE Chemistry Syllabus 2027 so you can include them in your study plan as well. The overall weightage percentage is also given:
| Chapter Name | 2025 | 2024 | 2023 | 2022 | 2021 | Total 5 year | Weightage |
| Organic Synthesis | 7 | 9 | 12 | 14 | 9 | 51 | 16.19% |
| Aptitude | 10 | 10 | 10 | 10 | 10 | 50 | 15.87% |
| Transition Elements | 4 | 5 | 4 | 1 | 5 | 19 | 6.03% |
| Quantum Chemistry | 5 | 4 | 3 | 4 | 2 | 18 | 5.71% |
| Spectroscopy | 3 | 3 | 2 | 4 | 6 | 18 | 5.71% |
| Chemical Kinectics and Electrochemistry | 2 | 3 | 6 | 3 | 4 | 18 | 5.71% |
| Main Group Elements | 5 | 3 | 4 | 3 | 3 | 18 | 5.71% |
| Organometallics | 5 | 3 | 5 | 2 | 2 | 17 | 5.40% |
| Experimental techniques of organic chemistry | 3 | 3 | 3 | 3 | 1 | 13 | 4.13% |
| Equilibrium | 2 | 3 | 2 | 2 | 3 | 12 | 3.81% |
| Thermodynamics | 3 | 2 | 1 | 2 | 4 | 12 | 3.81% |
| Surfaces and Interfaces | 2 | 3 | 3 | 3 | 1 | 12 | 3.81% |
| Steriochemistry | 2 | 3 | 2 | 1 | 1 | 9 | 2.86% |
| Group Theory | 1 | 2 | 1 | 3 | 1 | 8 | 2.54% |
| Bioinorganic | 1 | 1 | 2 | 3 | 1 | 8 | 2.54% |
| Reaction Mechanism | 3 | 2 | 2 | 1 | 0 | 8 | 2.54% |
| Instrumental Method of Analysis | 1 | 3 | 0 | 2 | 0 | 6 | 1.90% |
| Solids | 2 | 1 | 1 | 1 | 0 | 5 | 1.59% |
| Lanthanoids and Actinoids | 0 | 0 | 2 | 1 | 1 | 4 | 1.27% |
| Pericyclic and Photochemistry | 1 | 1 | 1 | 1 | 0 | 4 | 1.27% |
| Biomolecules | 2 | 1 | 0 | 1 | 0 | 4 | 1.27% |
| Radioactivity | 1 | 0 | 1 | 0 | 1 | 3 | 0.95% |
| Total | 65 | 65 | 65 | 65 | 55 | 315 | 100.00% |
The following GATE Chemistry Topic Wise Weightage impacts your GATE Chemistry preparation strategy. A visual representation graph is given below to understand which subjects holds how much weightage. Organic Synthesis has the highest weightage of 16.1% followed by Aptitude (10 questions every year).

Based on the past years GATE Chemistry exam, the topics with highest weightage is given below:
| Category | Topics |
| Physical Chemistry |
Atomic Structure & Quantum Chemistry, Thermodynamics & Statistical Thermodynamics, Electrochemistry, Equilibria, Kinetics, Surface Chemistry, Polymer Chemistry, Group Theory, Solid State |
| Inorganic Chemistry |
Coordination Chemistry, Organometallic Compounds, Main Group Elements, Radioactivity & Nuclear Chemistry, Chemical Bonding, Analytical Chemistry, Instrumental Methods, Bioinorganic Chemistry |
| Organic Chemistry |
Reaction Mechanism, Organic Synthesis, Spectroscopy, Pericyclic Reactions, Photochemistry, Heterocyclic Chemistry, Stereochemistry |
The GATE CH weightage provides a rough idea about the subjects that have been asked more frequently in the exam. It helps the candidate to decide where to start, which sections require more focus and which topics can be delayed to the later stages of preparation. Best used in conjunction with the syllabus and GATE previous year question papers.
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Top Books according to GATE Chemistry Subject Wise Weightage 2026
| Branch | Book Title & Author(s) | Description / Usefulness |
|---|---|---|
| Physical Chemistry | Physical Chemistry by Peter Atkins & Julio de Paula | Comprehensive source of fundamental principles and current topics. |
| Physical Chemistry | Physical Chemistry for the Chemical Sciences b y Raymond Chang | Simple explanations and problems for revising basic concepts. |
| Organic Chemistry | Organic Chemistry by Clayden, Greeves & Warren | Detailed descriptions of reactions and mechanisms; highly praised. |
| Organic Chemistry | Organic Chemistry by Morrison & Boyd | Classic text; good grounding in concepts and methodologies. |
| Inorganic Chemistry | Inorganic Chemistry by Miessler, Fischer & Tarr | Concise explanation of coordination, bioinorganic, and other topics. |
| Inorganic Chemistry | Concise Inorganic Chemistry by J.D. Lee | Brief, accurate information; strong conceptual base for exams. |
Frequently Asked Questions (FAQs)
The GATE Chemistry exam scheduled in 2027 is also expected to have a similar structure. It will likely consist of 65 questions divided into two sections: Chemistry (CY) and General Aptitude (GA). The course has a GA section of 10 questions totalling 15 marks, while the CY section has 55 questions worth 85 marks, together making it a total of 100 marks. The types of questions asked in the exam generally include MCQ, MSQ and NAT type questions, they largely vary from question to question. Questions in MCQs and MSQs may carry negative marking for incorrect answers while questions in NAT questions do not. The exam is expected to take 3 hours and will be in a computer based format.
While the exact weightage can vary slightly each year, based on recent trends, the GATE Chemistry Subject Wise Weightage 2025 is:
Physical Chemistry: 35-40%
Inorganic Chemistry: 25-30%
Organic Chemistry: 25-30%
A comprehensive preparation strategy for GATE Chemistry 2027 should include:
Syllabus mastery, Concept-focused learning,Problem-solving practice, and Time management.
Organic Synthesis has the highest weightage in GATE Chemistry based on the last five years' analysis, contributing around 16% of the total questions.
No, the exact distribution of questions changes every year. However, certain topics such as Organic Synthesis, Quantum Chemistry, Spectroscopy, and Transition Elements consistently carry high weightage.
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