CBSE Class 12 Chapter-Wise Weightage 2025-26 (Out): Check Weightage and Important Topics
The CBSE Class 12 Chapter-Wise Weightage for the session 2025-26 has been released on the official website, i.e., cbseacademic.nic.in. Students can check the subject-wise weightage on the website or in this article. The CBSE class 12 exams will take place in February-March 2026.
- The chapter-wise weightage for streams—science, commerce, and arts subjects—helps students to understand which topics are most important for their board exams.
- Students must choose five subjects, with the option to select an additional one if they so choose. Each subject is worth 100 marks.
- For subjects like math, accountancy, business studies, economics, and history, the theory exam is for 80 marks, while 20 marks are for internal assessment.
- For subjects such as physics, biology, chemistry, and geography, the theory paper is for 70 marks, and 30 marks are for the practical exams.
In the below article, students can check the CBSE class 12 chapter-wise weightage for science, commerce, and arts streams with important topics, which will help them to plan their study schedule better and practice questions to improve their performance in exams.
Also Check:
Key Summary
In this article we discussed the CBSE class 12 chapter-wise weightage and important topics for the academic year 2025-26.
- The CBSE class 12 chapter-wise weightage for the session 2025-26 has been released on the official website, i.e., cbseacademic.nic.in.
- Students must choose five subjects, with the option to select an additional one if they so choose. Each subject is worth 100 marks.
- For subjects like math, accountancy, business studies, economics, and history, the theory exam is for 80 marks, while 20 marks are for internal assessment.
- For subjects such as physics, biology, chemistry, and geography, the theory paper is for 70 marks, and 30 marks are for the practical exam.
- The chapter-wise weightage for streams—science, commerce, and arts subjects—helps students to understand which topics are most important for their board exams.
- CBSE Class 12 Subject-Wise Weightage 2025-26
- CBSE Class 12 Science: Chapter-Wise Weightage
- CBSE Class 12 Commerce: Chapter-Wise Weightage
- CBSE Class 12 Arts: Chapter-Wise Weightage
- CBSE Class 12 English: Chapter-Wise Weightage
- CBSE Class 12 Physical Education: Chapter-Wise Weightage
- CBSE Class 12 Previous Years' Question Papers
- FAQs
CBSE Class 12 Subject-Wise Weightage 2025-26
Each subject is evaluated through both theory and practical exams in the CBSE class 12. The total marks for each subject are 100, with a division between theory and practical assessments.
- For subjects like physics, chemistry, biology, and geography, which include practical work, the marks are divided into 70 marks for theory and 30 marks for practical exams.
- For subjects like mathematics, accountancy, business studies, economics, and history, which do not include practical exams, the theory paper is of 80 marks, and 20 marks are for internal assessment.
- Internal assessments can include projects, assignments, presentations, or periodic tests.
Below is a table showing the marks distribution, total marks, and theory-practical distribution details for CBSE Class 12 subjects in 2025–26:
| Stream | Subject | Total Marks | Theory Marks | Practical / Internal Marks |
|---|---|---|---|---|
| Science | Physics | 100 | 70 | 30 |
| Science | Chemistry | 100 | 70 | 30 |
| Science | Biology | 100 | 70 | 30 |
| Science | Mathematics | 100 | 80 | 20 |
| Commerce | Accountancy | 100 | 80 | 20 |
| Commerce | Business Studies | 100 | 80 | 20 |
| Commerce | Economics | 100 | 80 | 20 |
| Arts | Political Science | 100 | 80 | 20 |
| Arts | Geography | 100 | 70 | 30 |
| Arts | History | 100 | 80 | 20 |
| All Streams | English | 100 | 80 | 20 |
| All Streams | Physical Education | 100 | 70 | 30 |
CBSE Class 12 Science: Chapter-Wise Weightage
The major subjects in the science stream include physics, chemistry, math, and biology. Here is the CBSE class 12 chapter-wise weightage for each subject of the science stream.
CBSE Class 12 Physics: Chapter-Wise Weightage
The table shows CBSE class 12 chapter-wise weightage for physics chapter-wise marks, listing units, key topics, and their weightage, helping students focus on important chapters for the 70-mark theory exam.
| Unit No. | Unit Name | Chapters | Marks |
|---|---|---|---|
| 1 | Electrostatics |
| 16 |
| 2 | Current Electricity |
| – |
| 3 | Magnetic Effects of Current and Magnetism |
| 17 |
| 4 | Electromagnetic Induction and Alternating Current |
| – |
| 5 | Electromagnetic Waves |
| 18 |
| 6 | Optics |
| – |
| 7 | Dual Nature of Radiation and Matter |
| 12 |
| 8 | Atoms and Nuclei |
| – |
| 9 | Electronic Devices |
| 07 |
| Total | 70 | ||
CBSE Class 12 Chemistry: Chapter-Wise Weightage
The table shows CBSE class 12 chapter-wise weightage for chemistry chapter-wise marks, listing all units and their weightage. It highlights important chapters, helping students focus on high-scoring topics for the 70-mark theory exam.
| S.No. | Part | Chapter Name | Marks |
|---|---|---|---|
| 1 | Inorganic Chemistry | Solutions | 7 |
| 2 | Electrochemistry | 9 | |
| 3 | Chemical Kinetics | 7 | |
| 4 | d- and f-Block Elements | 7 | |
| 5 | Coordination Compounds | 7 | |
| 6 | Organic Chemistry | Haloalkanes and Haloarenes | 6 |
| 7 | Alcohols, Phenols, and Ethers | 6 | |
| 8 | Aldehydes, Ketones, and Carboxylic Acids | 8 | |
| 9 | Amines | 6 | |
| 10 | Biomolecules | 7 | |
| Total | 70 | ||
CBSE Class 12 Math: Chapter-Wise Weightage
The table shows CBSE Class 12 chapter-wise weightage for math, listing all units and their weightage. It highlights important chapters like Calculus, Vectors, and Three-Dimensional Geometry, helping students focus on high-mark topics for the 80-mark theory exam.
| Unit No. | Unit Name | Chapter Name | Marks |
|---|---|---|---|
| I | Relations and Functions | 8 | |
| II | Algebra | 10 | |
| III | Calculus | 35 | |
| IV | Vectors and Three-Dimensional Geometry | 14 | |
| V | Linear Programming | 5 | |
| VI | Probability | 8 | |
| Total | 80 | ||
CBSE Class 12 Biology: Chapter-Wise Weightage
The table shows CBSE class 12 chapter-wise weightage for biology, listing all units, chapters, and their marks. It shows important units like genetics, evolution, and biotechnology, helping students focus on high-mark topics for the 70-mark theory exam.
| Unit No. | Unit Name | Chapter Name | Marks |
|---|---|---|---|
| VI | Reproduction |
| 16 |
| VII | Genetics and Evolution |
| 20 |
| VIII | Biology and Human Welfare |
| 12 |
| IX | Biotechnology and its Applications |
| 12 |
| X | Ecology and Environment |
| 10 |
| Total | 70 | ||
Also Check:
CBSE Class 12 Commerce: Chapter-Wise Weightage
In Commerce, the main subjects include Accountancy, Economics, and Business Studies. Students can check the CBSE class 12 chapter-wise weightage for each subject below.
CBSE Class 12 Accountancy: Chapter-Wise Weightage
The table shows CBSE class 12 chapter-wise weightage for accountancy chapter-wise marks, covering key topics like Partnership Firms, Companies, Financial Statement Analysis, and Computerized Accounting to help students focus on important areas for the 100-mark exam.
| Unit Name | Chapter | Marks |
|---|---|---|
| Part A: Accounting for Partnership Firms and Companies | Accounting for Partnership Firms | 36 |
| Accounting for Companies | 24 | |
| Total (Part A) | 60 | |
| Part B: Financial Statement Analysis | Analysis of Financial Statements | 12 |
| Cash Flow Statement | 8 | |
| Total (Part B) | 20 | |
| OR, Part B: Computerized Accounting | Computerized Accounting | 20 |
| Total (Part B) | 20 |
CBSE Class 12 Business Studies: Chapter-Wise Weightage
The table shows the CBSE class 12 chapter-wise weightage for business studies, divided into Principles and Functions of Management and Business Finance & Marketing, helping students focus on high-mark topics for the 80-mark theory exam.
| Part | Chapter Name | Marks |
|---|---|---|
| Part A: Principles and Functions of Management | Nature and Significance of Management | 16 |
| Principles of Management | — | |
| Business Environment | — | |
| Planning | 14 | |
| Organizing | — | |
| Staffing | 20 | |
| Directing | — | |
| Controlling | — | |
| Total (Part A) | 50 | |
| Part B: Business Finance and Marketing | Financial Management | 15 |
| Financial Markets | — | |
| Marketing Management | 15 | |
| Consumer Protection | — | |
| Total (Part B) | 30 |
CBSE Class 12 Economics: Chapter-Wise Weightage
The table shows the CBSE class 12 chapter-wise weightage for economics, divided into Introductory Macroeconomics and Indian Economic Development, helping students prioritize high-mark chapters for the 80-mark theory exam.
| Part | Chapter Name | Marks |
|---|---|---|
| Part A: Introductory Macroeconomics | National Income and Related Aggregates | 10 |
| Money and Banking | 6 | |
| Determination of Income and Employment | 12 | |
| Government Budget and the Economy | 6 | |
| Balance of Payments | 6 | |
| Total (Part A) | 40 | |
| Part B: Indian Economic Development | Development Experience (1947-90) and Economic Reforms since 1991 | 12 |
| Current Challenges Facing Indian Economy | 20 | |
| Development Experience of India—A Comparison with Neighbours | 8 | |
| Total (Part B) | 40 |
Check:
CBSE Class 12 Arts: Chapter-Wise Weightage
Political Science, Geography, and History are the main subjects in the CBSE Class 12 Arts stream. Check the CBSE class 12 chapter-wise weightage for each of these subjects below.
CBSE Class 12 Political Science: Chapter-WIse Weightage
The subject is divided into two parts, each carrying 40 marks, making a total of 80 marks in theory. The CBSE class 12 chapter-wise weightage for political science is given below:
| Part | S.No. | Chapter Name | Marks |
|---|---|---|---|
| Part A: Contemporary World Politics | 1 | The End of Bipolarity | 6 |
| 2 | Contemporary Centres of Power | 6 | |
| 3 | Contemporary South Asia | 6 | |
| 4 | International Organizations | 6 | |
| 5 | Security in the Contemporary World | 6 | |
| 6 | Environment and Natural Resources | 6 | |
| 7 | Globalization | 4 | |
| Total (Part A) | 40 | ||
| Part B: Politics in India since Independence | 8 | Challenges of Nation Building | 6 |
| 9 | Era of One-Party Dominance | 4 | |
| 10 | Politics of Planned Development | 2 | |
| 11 | India’s External Relations | 6 | |
| 12 | Challenges to and Restoration of the Congress System | 4 | |
| 13 | The Crisis of Democratic Order | 4 | |
| 14 | Regional Aspirations | 6 | |
| 15 | Recent Development in Indian Politics | 8 | |
| Total (Part B) | 40 | ||
CBSE Class 12 Geography: Chapter-WIse Weightage
The Class 12 Geography syllabus is divided into two main books. Each section carries 35 marks, with map work included, making a total of 70 theory marks. The CBSE class 12 chapter-wise weightage for geography is given below:
| Book/Unit | S.N. | Chapter Name | Marks |
|---|---|---|---|
| Book – Fundamentals of Human Geography | 1 | Human Geography | 3 |
| 2 | The World Population: Density Distribution and Growth | 8 | |
| 3 | Human Development | — | |
| 4 | Primary Activities | 19 | |
| 5 | Secondary Activities | — | |
| 6 | Tertiary and Quaternary Activities | — | |
| 7 | Transport, Communication, and Trade | — | |
| 8 | International Trade | — | |
| 9 | Map Work | 5 | |
| Total (Book 1) | 35 | ||
| Book—India: People and Economy | 10 | Population: Distribution, Density, Growth, and Composition | 5 |
| 11 | Human Settlement | 3 | |
| 12 | Land Resources and Agriculture | 10 | |
| 13 | Water Resources | — | |
| 14 | Mineral and Energy Resources | — | |
| 15 | Planning and Sustainable Development in Indian Context | — | |
| 16 | Transport and Communication | 7 | |
| 17 | International Trade | — | |
| 18 | Geographical Perspective on Selected Issues and Problems | 5 | |
| 19 | Map Work | 5 | |
| Total (Book 2) | 35 | ||
CBSE Class 12 History: Chapter-WIse Weightage
The Class 12 History syllabus is divided into three parts of Themes in Indian History, each carrying 25 marks, along with map work (5 marks), making the total 80 theory marks. The table below shows the CBSE class 12 chapter-wise weightage for history:
| Part | S.N. | Themes/Chapters | Marks |
|---|---|---|---|
| Themes in Indian History—Part I | 1 | Bricks, Beads, and Bones: The Harappa Civilisation | 25 |
| 2 | Kings, Farmers, and Towns: Early States and Economies (c. 600 BCE–600 CE) | — | |
| 3 | Kingship, Caste and Class: Early Societies (c. 600 BCE–600 CE) | — | |
| 4 | Thinkers, Beliefs and Buildings: Cultural Developments (c. 600 BCE–600 CE) | — | |
| Themes in Indian History—Part II | 5 | Through the Eyes of Travellers: Perceptions of Society (c. 10th–17th centuries) | 25 |
| 6 | Bhakti-Sufi Traditions: Changes in Religious Beliefs and Devotional Texts (c. 8th–18th centuries) | — | |
| 7 | An Imperial Capital—Vijayanagar (c. 14th–16th centuries) | — | |
| 8 | Peasants, Zamindars and the States: Agrarian Society and the Mughal Empire (c. 16th–17th centuries) | — | |
| Themes in Indian History—Part III | 9 | Colonialism and the Countryside: Exploring Official Archives | 25 |
| 10 | Rebels and Raj: The 1857 Revolt and its Representations | — | |
| 11 | Mahatma Gandhi and the National Movement: Civil Disobedience and Beyond | — | |
| 12 | Framing of the Constitution: The Beginning of a New Era | — | |
| Map Work | — | 5 | |
| Total (Theory) | 80 | ||
CBSE Class 12 English: Chapter-Wise Weightage
The table shows the CBSE class 12 chapter-wise weightage for English, covering different sections like reading comprehension, writing skills, and literature. It also includes internal assessment and project work.
| Section | Topics/Competencies | Marks |
|---|---|---|
| Reading Comprehension | Unseen passage, case-based factual passage | 22 |
| Writing Skills | Notice, invitation, letters, article/report writing | 18 |
| Literature & Supplementary Reading | Prose, play, poem from Flamingo and Vistas | 40 |
| Total (Theory) | — | 80 |
| Internal Assessment | Listening and speaking skills | 10 |
| Project Work | — | 10 |
| Grand Total | — | 100 |
CBSE Class 12 Physical Education: Chapter-Wise Weightage
The table shows the marks allotted to each unit in CBSE class 12 chapter-wise weightage for physical education. It includes weightage for topics like sports management, yoga, nutrition, psychology, and training.
| Unit | Unit Name | Marks |
|---|---|---|
| 1 | Management of Sporting Events | 5 + 4b* |
| 2 | Children and Women in Sports | 7 |
| 3 | Yoga as Preventive Measure for Lifestyle Disease | 6 + 1b* |
| 4 | Physical Education and Sports (for CWSN) | 4 + 4b* |
| 5 | Sports and Nutrition | 7 |
| 6 | Test and Measurement in Sports | 8 |
| 7 | Physiology and Injuries in Sport | 4 + 4b* |
| 8 | Biomechanics and Sports | 10 |
| 9 | Psychology and Sports | 7 |
| 10 | Training in Sports | 9 |
Note: b* represents concept-based questions like tactile diagrams, data interpretation, and case study-based questions for visually impaired children
CBSE Class 12 Previous Years' Question Papers
Solving some past years' question papers will give you a general idea of how many questions will be asked from a given chapter in the CBSE Class 12 Exams, as there is no set data on this.
The table below contains links to past years' question papers broken down by subject to aid in your board exam preparation:
| Subject | Previous Years’ Question Papers |
|---|---|
| Physics | Check Question Papers |
| Chemistry | Check Question Papers |
| Math | Check Question Papers |
| Biology | Check Question Papers |
| Accountancy | Check Question Papers |
| Business Studies | Check Question Papers |
| Economics | Check Question Papers |
| Political Science | Check Question Papers |
| Geography | Check Question Papers |
| History | Check Question Papers |
FAQs
Ques. Does CBSE provide chapter-wise weightage?
Ans. Yes, CBSE provides chapter-wise weightage indirectly through the syllabus and sample papers.
- The syllabus describes the topics covered in each subject, and from past papers and guidelines, students and teachers analyze how many marks are generally allotted to each chapter.
Ques. Which chapters have the highest weightage for class 12 chemistry?
Ans. In chemistry, some chapters consistently carry more marks and are considered scoring topics. These include:
| Chapter | Key Topics | Weightage |
|---|---|---|
| Electrochemistry | Reactions, conductance, Nernst equation | High |
| Solutions | Concentration, colligative properties | High |
| Chemical Kinetics | Reaction rates, mechanisms | High |
| Aldehydes, Ketones, Carboxylic Acids | Organic reactions | High |
| Coordination Compounds | Structure, bonding | Moderate |
| d- and f-Block Elements | Properties, configurations | Moderate |
Ques. Did 26 out of 80 pass in CBSE?
Ans. No, the minimum passing marks in CBSE exams are generally 33% of the total marks.
- For an 80-mark paper, 33% equals 26.4, which is rounded to 27 or 28 marks.
- A score of 23 out of 80 is below the passing mark.
- Therefore, 23 marks is considered a fail, unless the board applies grace marks under special conditions.
Ques. Which chapter has the highest weightage in math class 12 CBSE?
Ans. In math class 12 CBSE, the unit calculus has the highest weight (35 marks). It includes topics such as
- Continuity and Differentiability
- Applications of Derivatives
- Integration techniques
- Differential Equations
Ques. Who got 100% in CBSE?
Ans. Every year, a few students across India score 100% in one or more subjects.
- Every topper performs exceptionally well in both theory and practical exams.
- After the results are announced, the CBSE board makes public the list of top scorers and pass rates.
- Students from smaller towns as well as major cities like Bengaluru, Delhi, and Mumbai have received full marks in math, English, and physics.
*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College.
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