important chapter for12,board CBSE pcb or english and score good marks in board exam
Hey,
Its very difficult to say what chapters are important to be very honest. The best way to plan the important chapter is to go through last ten years question bank of CBSE class 12th boards.
It will help you to deal with the important chapters first.
From my experience, you should be focusing more on chapters that involves proofs.
Physics: Magnetism, Light, Modern Physics
Chemistry: Organic should be done in priority, Solid states, surface chemistry, p block, electrochemistry
Biology: All cycles as well as diagrams
Although these are just an assumptions. Try going through as maximum chapters as possible and don't forget to go through last ten year papers.
Hope that helps.
Thank you.