Board Exam 2026-27

Assam Board Class 12 Science Important Chapters 2026-27

Subject-wise Important Topics for SEBA Class 12 Science Board Exams

Focus on these high-priority chapters to score excellent marks in Assam Board Class 12 Science board exams 2026-27.

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Physics Important Chapters (Board Exam)

High Priority (20%+ weightage)

• Optics - Ray and Wave Optics
• Modern Physics - Atoms and Nuclei
• Electrostatics
• Electromagnetic Induction

Medium Priority (10-19% weightage)

• Current Electricity
• Magnetic Effects of Current
• Electromagnetic Waves
• Electronics

Chemistry Important Chapters (Board Exam)

High Priority (20%+ weightage)

• Organic Chemistry - Basic Principles
• Hydrocarbons
• Haloalkanes and Haloarenes
• d-Block and f-Block Elements

Medium Priority (10-19% weightage)

• Solutions and Electrochemistry
• Chemical Kinetics
• p-Block Elements
• Surface Chemistry

Biology Important Chapters (Board Exam - PCB Option)

High Priority (20%+ weightage)

• Genetics and Evolution
• Biotechnology and its Applications
• Ecology and Environment
• Human Health and Disease

Medium Priority (10-19% weightage)

• Reproduction
• Plant Physiology
• Microbiology

Mathematics Important Chapters (Board Exam - PCM Option)

High Priority (20%+ weightage)

• Calculus - Continuity, Differentiability, Integration
• Algebra - Matrices and Determinants
• Vectors and 3D Geometry

Medium Priority (10-19% weightage)

• Relations and Functions
• Probability and Statistics
• Linear Programming