Introduction: Why Blueprint & Syllabus Matter More Than Ever
The CBSE Class 12 Board Exams 2025 are just around the corner, and for many students, they mark the first big academic milestone before entering higher education or competitive exams like JEE, NEET, CUET, and more.
Knowing the latest syllabus, blueprint, and chapter-wise weightage helps students focus on the most important areas. This post brings you a stream-wise breakdown of all major subjects — Science (PCM/PCB), Commerce, and Humanities — including tips to study smart.
SCIENCE STREAM (PCM/PCB)
1. Physics (Code: 042)
Total Marks: 100
- Theory: 70
- Practical: 30
Chapter-wise Weightage:
| Units | Marks |
|---|---|
| Electrostatics and Current Electricity | 16 |
| Magnetic Effects and Electromagnetic Induction | 17 |
| Electromagnetic Waves and Optics | 13 |
| Dual Nature, Atoms & Nuclei | 10 |
| Electronic Devices | 5 |
| Communication Systems | Not in syllabus |
Preparation Tip:
Focus more on numericals, derivations, and ray diagrams. CBSE repeats key derivations from previous years.
2. Chemistry (Code: 043)
Total Marks: 100
- Theory: 70
- Practical: 30
Weightage by Units:
| Units | Marks |
|---|---|
| Solid State & Solutions | 9 |
| Electrochemistry & Kinetics | 13 |
| Surface Chemistry | 4 |
| The p-Block Element | 7 |
| d- and f-Block Elements, Coordination Compounds | 9 |
| Haloalkanes & Haloarenes | 6 |
| Alcohols, Phenols & Ethers | 6 |
| Aldehydes, Ketones and Carboxylic Acids | 8 |
| Organic Compounds Containing Nitrogen | 4 |
| Biomolecules, Polymers, Chemistry in Everyday Life | 4 |
Preparation Tip:
Stick to NCERT reactions and mechanisms. Chemistry practicals also include salt analysis, so revise that regularly.
3. Mathematics (Code: 041)
Total Marks: 100
- Theory: 80
- Internal Assessment: 20
Unit-wise Blueprint:
| Unit | Marks |
|---|---|
| Relations and Functions | 8 |
| Algebra (Matrices & Determinants) | 10 |
| Calculus | 35 |
| Vectors and 3D Geometry | 14 |
| Linear Programming | 5 |
| Probability | 8 |
Preparation Tip:
Solve past 5-year questions. Focus more on Calculus, as it carries 40% of the marks.
4. Biology (Code: 044)
Total Marks: 100
- Theory: 70
- Practical: 30
Chapter Weightage:
| Unit | Marks |
|---|---|
| Reproduction | 14 |
| Genetics and Evolution | 18 |
| Biology and Human Welfare | 14 |
| Biotechnology | 10 |
| Ecology and Environment | 14 |
Preparation Tip:
Use diagram-based learning and mind maps. Most direct questions come from NCERT lines.
COMMERCE STREAM
1. Accountancy (Code: 055)
Total Marks: 100
- Theory: 80
- Project Work: 20
Important Areas:
| Chapter | Marks |
|---|---|
| Accounting for Partnership Firms | 30 |
| Accounting for Companies | 20 |
| Analysis of Financial Statements | 12 |
| Cash Flow Statement | 8 |
Preparation Tip:
Memorize formats of journal entries, ledgers, and cash flows. Presentation matters in scoring.
2. Business Studies (Code: 054)
Total Marks: 100
- Theory: 80
- Project: 20
Unit-wise Marking Scheme:
| Unit | Marks |
|---|---|
| Nature and Significance of Management | 7 |
| Principles of Management | 7 |
| Business Environment | 6 |
| Planning | 6 |
| Organizing | 6 |
| Staffing | 6 |
| Directing | 6 |
| Controlling | 6 |
| Financial Management | 12 |
| Financial Markets | 8 |
| Marketing | 14 |
| Consumer Protection | 5 |
Preparation Tip:
Use flowcharts in answers and relate concepts to real business examples.
3. Economics (Code: 030)
Total Marks: 100
- Theory: 80
- Project: 20
Units and Marks:
| Part | Topic | Marks |
|---|---|---|
| Part A | Intro to Macro, Banking, Budget, BOP | 40 |
| Part B | Indian Economy (1947–Present) | 40 |
Preparation Tip:
Pay attention to data-based questions and learn how to interpret graphs, tables, and statistics.
HUMANITIES / ARTS STREAM
1. Political Science (Code: 028)
Total Marks: 100
- Theory: 80
- Project: 20
| Book | Units | Marks |
|---|---|---|
| Contemporary World Politics | Cold War, NAM, UN, Globalization | 40 |
| Politics in India | Indian Democracy, Parties, Movements | 40 |
Preparation Tip:
Use current examples from Indian and global politics to support theoretical answers.
2. Geography (Code: 029)
Total Marks: 100
- Theory: 70
- Practical: 30
| Book | Chapters | Marks |
|---|---|---|
| Human Geography | 5 chapters | 35 |
| India – People & Economy | 5 chapters + Map | 35 |
Preparation Tip:
Give importance to map work and diagrams. 5–8 marks are directly based on them.
3. History (Code: 027)
Total Marks: 100
- Theory: 80
- Project: 20
| Section | Themes | Marks |
|---|---|---|
| Ancient India | Harappan, Mauryan | 25 |
| Medieval India | Bhakti, Sufi, Mughal Empire | 25 |
| Modern India | 1857 Revolt, Mahatma Gandhi, Partition | 30 |
Preparation Tip:
Structure long answers with introduction, body, and conclusion. Use dates and events precisely.
CBSE 2025 Board Exam Pattern – What’s New?
- Question Types: 30% competency-based, 20% objective (MCQ), 50% short/long answers
- Internal Assessment: Emphasis on project-based and practical work
- Sample Papers: Already released on cbseacademic.nic.in
- Exams Expected: Start in February 2025, with practicals in January 2025
Final Tips for Students:
- Focus first on high-weightage chapters in each subject
- Complete NCERT textbooks thoroughly — 80–85% of questions come from them
- Solve sample papers & previous year’s papers
- Make subject-wise revision charts and weekly plans
- Take mock tests under real-time conditions
- Practice map work and diagrams regularly
- Use keywords, headings, and neat presentation to score better
Conclusion: Master the Blueprint, Ace the Exam
Success in CBSE Class 12 isn’t just about studying hard—it’s about studying smart. Knowing the subject-wise syllabus, chapter weightage, and latest exam pattern gives you a clear direction to focus your time and effort.
Whether you’re aiming for college admissions or entrance exams, your board results matter. So, stay updated, stay consistent, and make the blueprint your game plan for success in 2025.
Stay connected with Vibrant Patrika for more updates, topper strategies, study plans, and exam tips tailored just for you.
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