CBSE Class 12 Chemistry Previous Year Question Papers
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CBSE Class 12 Chemistry previous year papers, 2023 to 2026
The real question papers from the CBSE Class 12 Chemistry board exams of 2023 to 2026 (8 papers, two sets a year, from different regions, each with a published marking scheme), and the 4 official sample papers for 2023-24, 2024-25, 2025-26, 2026-27. Every question is shown as printed, section by section, with its OR choices.
456 of the 456 questions (counting each OR alternative) have our step-by-step solution, split into the steps that earn marks and checked by an independent re-solve; 12 papers are fully solved. The others say "Solution being checked" until they pass.
Chemistry: papers by year
For the 2027 board exam
2026 board exam
2025 board exam
2024 board exam
Chemistry: how often each chapter was asked
Counted from the 8 board papers above (2023 to 2026). A chapter counts as asked in a paper when at least one question, or one of its OR alternatives, is on it. Average marks are over all 8 papers, with an OR pair counted once. Chapter tags are ours.
| Chapter | Asked in | Average marks per paper | Questions | Sample papers |
|---|---|---|---|---|
| Solutions | 8 of 8 | 7 | 33 | 4 of 4 |
| Electrochemistry | 8 of 8 | 9 | 37 | 4 of 4 |
| Chemical Kinetics | 8 of 8 | 7 | 29 | 4 of 4 |
| The d- and f-Block Elements | 8 of 8 | 7 | 28 | 4 of 4 |
| Coordination Compounds | 8 of 8 | 7 | 29 | 4 of 4 |
| Haloalkanes and Haloarenes | 8 of 8 | 6.1 | 28 | 4 of 4 |
| Alcohols, Phenols and Ethers | 8 of 8 | 6.3 | 30 | 4 of 4 |
| Aldehydes, Ketones and Carboxylic Acids | 8 of 8 | 7.9 | 30 | 4 of 4 |
| Amines | 8 of 8 | 6 | 29 | 4 of 4 |
| Biomolecules | 8 of 8 | 7 | 33 | 4 of 4 |
| Chemistry in Everyday Life | 1 of 8 | 0.1 | 1 | 2 of 4 |
"Questions" counts each OR alternative in the board papers. Linked chapters list their questions by year on the chapter page.