The Class 12 Chemistry Marking Scheme for 2025 plays a major role, which helps students to plan their exam strategy in a very clear and confident way. Since the CBSE board follows a structured paper pattern every year, students get a direct idea of how each of the chapters contributes to the 70-mark theory exam and for the 30-mark practical exam. Hence, by having this clarity, students can prepare in a focused manner and avoid confusion during revision.
Moreover, the Class 12 Chemistry syllabus covers essential concepts, numerical questions, important reactions, mechanisms, and real-life applications. This is why having a clear understanding of the Class 12 Chemistry Marking Scheme—and referring to chapter-wise patterns similar to the JEE Main Chemistry Weightage—helps students identify which topics require more time, practice, and focused revision.
CBSE Class 12 Chemistry Exam Pattern and Marking Scheme 2025
The Class 12 Chemistry Marking Scheme clearly shows how CBSE distributes marks chapter-wise for the 2025 board exam.
CBSE Class 12 Chemistry Chapter-Wise Marks Distribution 2025
Here is the complete class 12 chemistry chapter wise marks distribution.
| S.No. | Title | Marks |
| 1 | Solutions | 7 |
| 2 | Electrochemistry | 9 |
| 3 | Chemical Kinetics | 7 |
| 4 | d- and f-Block Elements | 7 |
| 5 | Coordination Compounds | 7 |
| 6 | 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 |
Hence, with this breakdown, students will feel the Class 12 Chemistry Marking Scheme is simple to follow no matter how the student is.
CBSE Class 12 Chemistry Question Paper Typology 2024-25
The Class 12 Chemistry Marking Scheme is built on three learning domains:
| S.No | Domains | Total Marks | % |
| 1 | Remembering and Understanding:It exhibits memory of previously learned material by recalling facts, terms, basic concepts, and answers. Moreover, it demonstrate the understanding of facts and ideas by organizing, comparing, translating, interpreting.It also gives descriptions and clarifies the main ideas. | 28 | 40 |
| 2 | Applying:It helps to solve problems in new situations by applying acquired knowledge, facts, techniques, and rules in a different way. | 21 | 30 |
| 3 | Analyzing, Evaluating, and Creating:Moreover, it examines and breaks the information into parts by identifying motives or causes. Make inferences and find evidence to support generalizations. Present and defend opinions by making judgments about information, the validity of ideas, or the quality of work based on a set of criteria.It also compiles the information together in a different way by combining elements in a new pattern or proposing alternative solutions. | 21 | 30 |
Hence, this structure ensures that the paper checks conceptual clarity, analytical skills, and application ability in an equal and fair way.
CBSE Class 12 Chemistry Weightage 2026 Overview
The exam uses a balanced combination of theory and practicals. The Class 12 Chemistry Marking Scheme makes this distribution easy to understand:
| Component | Marks | Overview |
| Theory Exam | 70 | Covers all Chemistry chapters, including numericals, reactions, and concepts |
| Practical Exam | 30 | Includes experiments, activities, and viva |
| Total | 100 | Balanced focus on theory and practical knowledge |
CBSE Chemistry Class 12 Chapter-Wise Weightage 2025-26
The Class 12 Chemistry Marking Scheme divides marks across ten crucial chapters:
| Unit/Chapter | Marks |
| Solutions | 7 |
| Electrochemistry | 9 |
| Chemical Kinetics | 7 |
| d- and f-Block Elements | 7 |
| Coordination Compounds | 7 |
| Haloalkanes and Haloarenes | 6 |
| Alcohols, Phenols, and Ethers | 6 |
| Aldehydes, Ketones, and Carboxylic Acids | 8 |
| Amines | 6 |
| Biomolecules | 7 |
| Total | 70 |
Hence, this layout helps students approach the exam with a strong plan.
CBSE Class 12 Chemistry Practical Weightage 2026
The practical part of the Class 12 Chemistry Marking Scheme contributes significantly to the final score. The distribution is shown below
| Evaluation Scheme | Marks |
| Volumetric Analysis | 8 |
| Salt Analysis | 8 |
| Content-Based Experiment | 6 |
| Project Work | 4 |
| Class Record and Viva | 4 |
| Total | 30 |
Hence, we can say that if students prepare each section carefully, they can easily score high in practicals.
How to Prepare for Class 12 Chemistry Board Exam 2026
A solid preparation plan becomes easier when students understand the Class 12 Chemistry Marking Scheme clearly. Below are simple and effective tips:
1. Understand the Weightage First
First, go through the chapter-wise marks and focus on high-weight chapters like Electrochemistry, Aldehydes & Ketones, Chemical Kinetics, and Biomolecules.
2. Study the Full Syllabus
Second, have a thorough reading of every chapter from the latest syllabus and note the important topics.
3. Create Short Notes
Do not forget to prepare reaction charts, formula sheets, and mechanism summaries to revise faster.
4. Practice Numerical Questions
Solve numerical problems from Electrochemistry, Chemical Kinetics, and Solutions regularly.
5. Solve Previous Year Papers
Solve PYQs and sample papers, which will help you to understand the pattern and question types.
6. Allocate Time According to Weightage
Moreover, study high-mark chapters first and revise them multiple times.
7. Prepare for Practicals Properly
Additionally, practice all experiments listed in the syllabus and revise the theory behind each test.
8. Revise Again and Again
Lastly, do multiple revisions as it ensures better retention and reduces last-minute stress.
Conclusion
The Class 12 Chemistry Marking Scheme for 2025 gives students a crystal-clear roadmap for scoring well in both theory and practical exams. Since every chapter carries a fixed weightage, students can plan their preparation in a balanced and organized way. When students combine chapter-wise planning with regular practice, revision charts, PYQs, numerical solving, and strong practical preparation, scoring high in Chemistry becomes much easier. A calm mind, steady revision, and complete awareness of the marking scheme will help every student perform confidently in the board exam. For more guidance on your Chemistry preparation journey, visit SPM & LALANS COACHING and access additional study materials, sample papers, and much more.
For students looking to balance their preparation across subjects, it’s also helpful to understand the marking schemes for other subjects like Physics. You can check the CBSE Class 12 Physics Marking Scheme 2025 for a comprehensive breakdown and tips.
FAQs
1. What are the total marks for the CBSE Class 12 Chemistry Board Exam 2026?
The total marks are 100, with 70 marks for theory and 30 marks for practicals.
2. Which chapters carry the highest weightage in Class 12 Chemistry 2026?
Electrochemistry and Aldehydes, Ketones & Carboxylic Acids carry the highest marks.
3. How many marks are assigned to Chemistry practicals in Class 12?
The practical exam carries 30 marks.
4. Are NCERT textbooks enough for Chemistry preparation?
Yes, NCERT textbooks are more than enough for scoring full marks when studied thoroughly.
5. Where can I check the CBSE Class 12 Chemistry Weightage 2026 chapter-wise?
Students can check the chapter-wise weightage through the official marking scheme shared by CBSE and detailed breakdowns available in study guides.
