Xam Idea- the best book for chemistry class 12th Cbse board exam

Competency based learning
Revised Cbse syllabus (NEP)

SALIENT FEATURES:
introduction
notes
important formulae
NCERT intext questions
NCERT back questions
MCQs
Assertion -Reason
Passage based /case based/source based questions
Conceptual questions
-Short Answer
- Long Answer
Competency based questions
Constructed Response questions
CBSE examination papers(PYQ)
CBSE sample paper
Toppers Answer and marking scheme