Class 12 Science PCMB Syllabus 2025-26 | CBSE Official Syllabus Breakdown
Hello students!
As you transition into Class 12 Science with PCMB subjects, understanding the official syllabus is the first crucial step toward effective preparation.
Here’s a detailed look at the Physics, Chemistry, Maths, and Biology syllabus for the academic session 2025-26, including chapter names, marks weightage, and time allocation.
Physics Syllabus Overview
- Total Marks: 70
- Exam Duration: 3 Hours
- Total Chapters: 14
Chapter List:
- Electric Charges and Field
- Electrostatic Potential and Capacitance
- Current Electricity
- Moving Charges and Magnetism
- Magnetism and Matter
- Electromagnetic Induction (EMI)
- Alternating Current
- Electromagnetic Waves
- Ray Optics
- Wave Optics
- Dual Nature of Radiation and Matter
- Atoms
- Nucleus
- Semiconductor Electronics
Important Unit-wise Marks Distribution:
- Semiconductor Electronics: 7 Marks
- Dual Nature, Atom, and Nucleus: 12 Marks
- Ray Optics and Wave Optics: 18 Marks
- Moving Charges, Magnetism, EMI, Alternating Current: 17 Marks
- Electric Charges, Capacitance, Current Electricity: 16 Marks
✅ Focus more on Ray Optics, Wave Optics, and Semiconductor Electronics for scoring easily!
Chemistry Syllabus Overview
- Total Marks: 70
- Exam Duration: 3 Hours
- Total Chapters: 10
Chapter List and Marks Weightage:
- Solution – 7 Marks
- Electrochemistry – 9 Marks
- Chemical Kinetics – 7 Marks
- d- and f-Block Elements – 7 Marks
- Coordination Compounds – 7 Marks
- Haloalkanes and Haloarenes – 6 Marks
- Alcohol, Phenol, and Ether – 6 Marks
- Aldehydes, Ketones, and Carboxylic Acids – 8 Marks
- Amines – 6 Marks
- Biomolecules – 7 Marks
✅ Important note:
The P-Block portion has been removed compared to older syllabuses.
Mathematics Syllabus Overview
- Total Marks: 80 (Theory) + 20 (Internal Assessment)
- Exam Duration: 3 Hours
- Total Units: 6
Units and Marks Distribution:
- Relations and Functions – 8 Marks
- Algebra – 10 Marks
- Calculus – 35 Marks
- Vectors and 3D Geometry – 14 Marks
- Linear Programming – 5 Marks
- Probability – 8 Marks
✅ Special Focus:
Calculus carries the maximum weight (35 marks), so prioritize it in your studies.
Biology Syllabus Overview
- Total Marks: 70
- Exam Duration: 3 Hours
- Total Units: 5
Units and Marks Distribution:
- Reproduction – 16 Marks
- Genetics and Evolution – 20 Marks
- Biology and Human Welfare – 12 Marks
- Biotechnology and Its Applications – 12 Marks
- Ecology and Environment – 10 Marks
✅ Note:
Each unit has multiple chapters. For example, under Reproduction, you will study three chapters, while Ecology and Environment includes Organism and Population, Ecosystem, Biodiversity, and Conservation.
Important Notes for Students
- ✅ Physics, Chemistry, Maths, and Biology all have 3-hour exams.
- ✅ Physics and Chemistry final papers are 70 marks each, while Maths is 80 marks theory + 20 internal.
- ✅ Biology also carries 70 marks externally.
- ✅ Some chapters and topics have been reduced compared to previous years (especially in Chemistry and Biology).
- ✅ Students must revise multiple times before final board exams for better results.
Conclusion
Knowing your syllabus is the first step toward smart preparation.
Plan your study schedule according to marks weightage, focus on high-scoring topics, and start early to revise multiple times.
Good Luck! Keep learning and stay focused! 🎯
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