CBSE Class 12 Chemistry Previous Year Question Paper 2021 is a useful resource for effective board exam preparation. This paper helps students understand the revised exam pattern and marking scheme followed by CBSE in 2021. It includes questions from Physical, Organic, and Inorganic Chemistry, covering important topics like Electrochemistry, Coordination Compounds, Haloalkanes, and Biomolecules. Practicing this paper improves conceptual clarity, numerical accuracy, and answer presentation. Solving the question paper under exam conditions also helps in managing time efficiently. Regular practice of previous year papers like 2021 enables students to identify important questions, strengthen weak areas, and score higher marks in the Class 12 Chemistry board examination.