Marking Scheme of CBSE Class 12 helps students understand how marks are divided in the board examination. It explains the types of questions, internal assessment, and theory marks. Students can plan their preparation in a better way when they clearly know the pattern.
The Marking Scheme of CBSE Class 12 also shows chapter-wise weightage for major subjects. It gives clarity about important units and the distribution of marks. Here, we’ll cover subject-wise details for the 2026 academic session.
CBSE Class 12 Exam Pattern 2026
The board has defined a structured exam pattern. The theory paper is of 3 hours. Most subjects follow a combination of MCQs, short answers, and long answer questions.
| CBSE Class 12 Exam Pattern 2026 | |
| Category | Details |
| Exam Conducting Body | Central Board of Secondary Education |
| Duration | 3 Hours |
| Question Types | 20% MCQs, 30% Competency-Based, 50% Short/Long Answers |
| Passing Criteria | 33% in aggregate and 33% in each subject |
| Maximum Marks | 100 (Theory + Practical/Internal) |
Maths Exam Pattern and Marking Scheme for Class 12 CBSE 2026
The marking scheme of CBSE Class 12 Maths explains section-wise marks and types of questions. The paper is for 80 marks theory and 20 marks internal assessment.
| Marking Scheme of CBSE Class 12 Maths | |||
| Section | Type of Questions | Marks per Question | Total Marks |
| A | 18 MCQs and Assertion-Reason | 1 | 20 |
| B | 5 Very Short Answer | 2 | 10 |
| C | 6 Short Answer | 3 | 18 |
| D | 4 Long Answer | 5 | 20 |
| E | 3 Case-Based | 4 | 12 |
| Total | 80 | ||
The marking scheme of CBSE Class 12 Maths focuses on conceptual clarity and application.
Weightage of Maths Class 12 CBSE 2026
CBSE Class 12 Maths Chapter-wise weightage helps students divide time properly.
| Weightage of Maths Class 12 CBSE 2026 | ||
| Unit | Unit Name | Marks |
| I | Relations and Functions | 8 |
| II | Algebra | 10 |
| III | Calculus | 35 |
| IV | Vectors and 3D Geometry | 14 |
| V | Linear Programming | 5 |
| VI | Probability | 8 |
| Total (Theory) | 80 | |
| Internal Assessment | 20 | |
Physics Exam Pattern and Marking Scheme for Class 12 CBSE 2026
The marking scheme of CBSE Class 12 Physics 2026 includes theory and practical marks. The theory paper is for 70 marks, and the practical is for 30 marks.
| Marking Scheme of CBSE Class 12 Physics 2026 | |||
| Section | No. of Questions | Marks per Question | Total Marks |
| A | 16 | 1 | 16 |
| B | 5 | 2 | 10 |
| C | 7 | 3 | 21 |
| D | 2 Case Study | 4 | 8 |
| E | 3 Long Answer | 5 | 15 |
| Total | 70 | ||
The marking scheme of CBSE Class 12 Physics 2026 checks both theory understanding and numerical skills.
Weightage of Physics Class 12 CBSE 2026
The weightage section under the marking scheme of CBSE Class 12 Physics 2026 helps students understand which units carry more marks. It allows students to plan revision based on chapter importance and marks distribution.
| Weightage of Physics Class 12 CBSE 2026 | ||
| Unit | Chapter | Marks |
| I | Electrostatics | 16 |
| II | Current Electricity | 18 |
| III | Magnetic Effects | 25 |
| IV | Electromagnetic Induction | 17 |
| V | Electromagnetic Waves | 4 |
| VI | Optics | 18 |
| VII | Dual Nature | 8 |
| VIII | Atoms and Nuclei | 12 |
| IX | Electronic Devices | 7 |
| Total (Theory) | 70 | |
Chemistry Exam Pattern and Marking Scheme for Class 12 CBSE 2026
The marking scheme of CBSE Class 12 Chemistry 2026 includes 70 marks for theory and 30 marks internal assessment.
| Marking Scheme of CBSE Class 12 Chemistry 2026 | |||
| Section | Type of Questions | Marks per Question | Total Marks |
| A | 16 MCQs | 1 | 16 |
| B | 5 Very Short | 2 | 10 |
| C | 7 Short | 3 | 21 |
| D | 2 Case-Based | 4 | 8 |
| E | 3 Long | 5 | 15 |
| Total | 70 | ||
The marking scheme of CBSE Class 12 Chemistry 2026 gives importance to organic and physical chemistry concepts.
CBSE Class 12 Chemistry Unit-Wise Weightage 2026
Here is the unit-wise weightage for Class 12 Chemistry.
| CBSE Class 12 Chemistry Unit-wise Weightage 2026 | |
| Unit | Weightage (Marks) |
| Unit II: Solutions | 7 |
| Unit III: Electrochemistry | 9 |
| Unit IV: Chemical Kinetics | 7 |
| Unit VIII: D and F Block Elements | 7 |
| Unit IX: Coordination Compounds | 7 |
| Unit X: Haloalkanes and Haloarenes | 6 |
| Unit XI: Alcohols, Phenols, and Ethers | 6 |
| Unit XII: Aldehydes, Ketones, and Carboxylic Acids | 8 |
| Unit XIII: Amines | 6 |
| Unit XIV: Biomolecules | 7 |
| Total Theory | 70 |
| Internal Assessment | 30 |
Weightage of Chapters in Biology Class 12 CBSE 2026
The marking scheme of CBSE Class 12 Biology 2026 includes 70 marks for theory and 30 marks for practical.
| Weightage of Chapters in Biology Class 12 CBSE 2026 | |||
| Section | No. of Questions | Marks per Question | Total Marks |
| A | 16 | 1 | 16 |
| B | 5 | 2 | 10 |
| C | 7 | 3 | 21 |
| D | 2 Case-Based | 4 | 8 |
| E | 3 Long | 5 | 15 |
| Total | 70 | ||
The marking scheme of CBSE Class 12 Biology 2026 focuses on diagrams and explanations.
CBSE Class 12 Biology Unit-Wise Weightage
The unit-wise distribution under the marking scheme of CBSE Class 12 Biology 2026 shows how marks are divided across major topics. It helps students focus more on units that carry higher weightage in the theory examination.
| CBSE Class 12 Biology Unit-wise Weightage | |
| Unit | Marks |
| Reproduction | 16 |
| Genetics and Evolution | 20 |
| Biology and Human Welfare | 12 |
| Biotechnology | 12 |
| Ecology and Environment | 10 |
| Theory Total | 70 |
| Practical | 30 |
Accountancy Exam Pattern and Marking Scheme for Class 12 CBSE 2026
The Marking Scheme of CBSE Class 12 for Accountancy includes two parts. The paper has 34 questions.
| Exam Pattern and Marking Scheme of Class 12 Accountancy | |
| Details | Information |
| Total Questions | 34 |
| Parts | Part A and Part B |
| 1 Mark Questions | Q1–16, 27–30 |
| 3 Mark Questions | Q17–20, 31, 32 |
| 4 Mark Questions | Q21, 22, 33 |
| 6 Mark Questions | Q23–26, 34 |
Weightage of Chapters in Accountancy Class 12 CBSE 2026
This section of the Marking Scheme of CBSE Class 12 explains the chapter-wise distribution of marks in Accountancy. It helps students understand which areas need more practice and proper revision before the board examination.
| Weightage of Chapters in Accountacy Class 12 CBSE 2026 | |
| Unit | Marks |
| Accounting for Partnership | 36 |
| Company Accounts | 24 |
| Financial Statement Analysis | 12 |
| Computerised Accounting | 8 |
| Total | 80 |
Economics Exam Pattern and Marking Scheme for Class 12 CBSE 2026
The Marking Scheme of CBSE Class 12 for Economics includes a theory paper of 80 marks and an internal assessment of 20 marks.
| Economics Exam Pattern and Marking Scheme for Class 12 | ||
| Section | Type | Marks |
| A | MCQs | 20 |
| B | Short Answer | 30 |
| C | Long Answer | 30 |
| Total (Theory) | 80 | |
| Internal Assessment | 20 | |
Weightage of Chapters in Economics Class 12 CBSE 2026
This section of the Marking Scheme of CBSE Class 12 explains how marks are divided among different Economics units. It helps students understand important areas and prepare according to the official distribution of marks.
| Weightage of Chapters in Economics Class 12 CBSE 2026 | |
| Unit | Marks |
| National Income | 10 |
| Money and Banking | 6 |
| Government Budget | 6 |
| Balance of Payments | 6 |
| Development Experience | 20 |
| Indian Economy | 12 |
| Total | 80 |
English Core Exam Pattern and Marking Scheme for Class 12 CBSE 2026
The Marking Scheme of CBSE Class 12 for English Core includes reading, writing, and literature sections.
| English Exam Pattern and Marking Scheme | |
| Section | Marks |
| Reading Skills | 20 |
| Writing Skills | 20 |
| Literature | 40 |
| Total | 80 |
| Internal Assessment | 20 |
Political Science Exam Pattern and Marking Scheme for Class 12 CBSE 2026
The Marking Scheme of CBSE Class 12 for Political Science includes competency-based and long answer questions.
| Political Science Exam Pattern and Marking Scheme | |
| Section | Marks |
| MCQs | 16 |
| Short Answer | 24 |
| Long Answer | 24 |
| Case-Based | 16 |
| Total | 80 |
CBSE Class 12 Political Science Unit-Wise Weightage
This section of the Marking Scheme of CBSE Class 12 shows how marks are equally divided between the two major parts of Political Science. It helps students understand the importance of both contemporary world politics and Indian politics while preparing for the board examination.
| CBSE Class 12 Political Science Unit-wise Weightage | |
| Unit | Marks |
| Contemporary World Politics | 40 |
| Politics in India Since Independence | 40 |
| Total | 80 |