Download CBSE Class 9 Science Assertion and Reasoning Questions PDF for Biology (Tissues), Physics, and Chemistry. Get ...

NCERT Books for Class 12 Biology: The Central Board of Secondary Education (CBSE) Class 12 Biology board examination predominantly relies on the comprehensive content found in the NCERT textbooks.

The question paper structure will now comprise 70 per cent descriptive and 30 per cent objective questions. The revised pattern applies to all streams, including science, commerce and general.