Learn Concepts, Solve Questions, and Excel in CBSE Class 12 Chemistry! PW CBSE Question & Concept Bank (QCB) Class 12 Chemistry By Shourya Mam For 2027 Board Exams is thoughtfully designed to strengthen conceptual clarity while providing extensive exam-oriented practice. With 50% competency-based questions, structured theory, and detailed explanations aligned with the latest CBSE exam pattern, this book helps students build strong fundamentals and develop the problem-solving skills required to score excellent marks.