BOARD EXAM GUIDE | APRIL 2026
Last Updated: April 2026 | Reading Time: 12 minutes
The CBSE Syllabus for Class 12 (2027) is the foundation of your entire board exam preparation. Whether you are in Science, Commerce, or Humanities — knowing exactly what to study, how much weightage each chapter carries, and what the marking scheme looks like is the difference between scoring 90+ and struggling at 60.
CBSE Class 12 Exam Structure — Quick Overview
Total Subjects: 5 (1 Language + 4 Electives) | Theory: 70 marks (most subjects) | Internal Assessment: 30 marks | Passing: 33% | Competency-Based: 50% from 2026 | Duration: 3 hours + 15 min reading
Science Stream Syllabus
Physics (Theory: 70 Marks)
Electrostatics (8 marks): Electric Charges, Fields, Potential, Capacitance. Current Electricity (7 marks): Ohm’s Law, Kirchhoff’s Rules, Wheatstone Bridge. Magnetic Effects (8 marks): Moving Charges, Magnetism. EMI & AC (8 marks): Faraday’s Laws, Inductance, AC Circuits. EM Waves (5 marks). Optics (14 marks — HIGHEST!): Ray Optics, Wave Optics, Interference, Diffraction. Dual Nature & Atoms (9 marks): Photoelectric Effect, Bohr Model. Electronic Devices (7 marks).
Chemistry (Theory: 70 Marks)
16 units across Physical, Organic, and Inorganic Chemistry. High-weightage: Solutions, Electrochemistry, Chemical Kinetics (Physical); p-Block, d-Block Elements (Inorganic); Aldehydes, Ketones & Carboxylic Acids (Organic).
Mathematics (Theory: 80 Marks — No IA!)
Relations & Functions (8), Algebra (10), Calculus (35 — HIGHEST!), Vectors & 3D Geometry (14), Linear Programming (5), Probability (8).
Biology (Theory: 70 Marks)
Reproduction (14), Genetics & Evolution (18 — HIGHEST!), Biology & Human Welfare (14), Biotechnology (10), Ecology (14).
Commerce Stream Syllabus
Accountancy (80 marks): Partnership Accounts (36), Company Accounts (24), Financial Statement Analysis (20).
Business Studies (80 marks): Principles of Management, Business Finance, Marketing, Consumer Protection.
Economics (80 marks): Macroeconomics (40) + Indian Economic Development (40).
Humanities Stream Syllabus
History (80): Themes in Indian History Parts I, II, III. Political Science (80): Contemporary World Politics + Politics in India Since Independence. Geography (70+30): Fundamentals + India: People and Economy.
Allocate study time proportionally to marks. Calculus = 35 marks? Give it 35% of your Maths time. Optics = 14 marks in Physics? Don’t skip it for a 5-mark chapter. Study smarter, not harder.
50% Competency-Based Questions — The Big Change
From 2026, CBSE mandates 50% competency-based questions testing APPLICATION, not memory. Real-world scenarios, case studies, and data interpretation will be common. Rote learning alone will NOT work.
How to prepare: NCERT exemplar problems, case-based sample paper questions, and conceptual understanding over memorization.
Never skip it | Complete every chapter | Exercises are gold | Read examples | Text is the exam source
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