Section A covers Biology, with 16 questions carrying 30 marks. Section B covers Chemistry, with 13 questions carrying 25 marks.

The ISC Class 12 Chemistry examination for the 2025-2026 academic session was scheduled on February 23, 2026. Lakhs of ...

Class 12 Chemistry paper allegedly circulated on WhatsApp before February 18 exam; CCTV footage had also earlier flagged mass ...

Understanding syllabus weightage is essential not only for boards but also for general awareness about India’s school education system.

Check the table below to understand the chapter-wise weightage for CBSE Class 12 Chemistry, which shows the marks distribution for each unit in the theory exam.

Focus on high-weightage chapters and NCERT textbook for Chemistry exam. Review key formulas, reactions, and diagrams for improved understanding. Use mind maps, summary notes, and past papers for ...