CBSE Class 10 Science Previous Year Question Papers
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CBSE Class 10 Science previous year papers, 2023 to 2026
The real question papers from the CBSE Class 10 Science board exams of 2023 to 2026 (21 papers, one English-medium set per region group each year), 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.
1125 of the 1128 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; 22 papers are fully solved. The others say "Solution being checked" until they pass.
Science: papers by year
For the 2027 board exam
2026 board exam
- 2026 board paper, set 31/1/146 questions incl. OR alternatives · 80 marksAll solutions checked
- 2026 board paper, set 31/2/145 questions incl. OR alternatives · 80 marksAll solutions checked
- 2026 board paper, set 31/3/145 questions incl. OR alternatives · 80 marksAll solutions checked
- 2026 board paper, set 31/4/145 questions incl. OR alternatives · 80 marksAll solutions checked
- 2026 board paper, set 31/5/145 questions incl. OR alternatives · 80 marksAll solutions checked
- Sample paper 2025-2645 questions incl. OR alternatives · 80 marksAll solutions checked
2025 board exam
- 2025 board paper, set 31/1/145 questions incl. OR alternatives · 80 marksAll solutions checked
- 2025 board paper, set 31/2/145 questions incl. OR alternatives · 80 marksAll solutions checked
- 2025 board paper, set 31/3/145 questions incl. OR alternatives · 80 marksAll solutions checked
- 2025 board paper, set 31/4/145 questions incl. OR alternatives · 80 marksAll solutions checked
- 2025 board paper, set 31/5/144 questions incl. OR alternatives · 80 marksAll solutions checked
- 2025 board paper, set 31/6/145 questions incl. OR alternatives · 80 marks44 of 45 solutions checked
- Sample paper 2024-2546 questions incl. OR alternatives · 80 marksAll solutions checked
2024 board exam
- 2024 board paper, set 31/1/145 questions incl. OR alternatives · 80 marks44 of 45 solutions checked
- 2024 board paper, set 31/2/145 questions incl. OR alternatives · 80 marksAll solutions checked
- 2024 board paper, set 31/3/145 questions incl. OR alternatives · 80 marksAll solutions checked
- 2024 board paper, set 31/4/145 questions incl. OR alternatives · 80 marksAll solutions checked
- 2024 board paper, set 31/5/145 questions incl. OR alternatives · 80 marksAll solutions checked
- Sample paper 2023-2445 questions incl. OR alternatives · 80 marksAll solutions checked
2023 board exam
- 2023 board paper, set 31/1/146 questions incl. OR alternatives · 80 marksAll solutions checked
- 2023 board paper, set 31/2/145 questions incl. OR alternatives · 80 marksAll solutions checked
- 2023 board paper, set 31/4/146 questions incl. OR alternatives · 80 marksAll solutions checked
- 2023 board paper, set 31/5/145 questions incl. OR alternatives · 80 marks44 of 45 solutions checked
- 2023 board paper, set 31/6/145 questions incl. OR alternatives · 80 marksAll solutions checked
Science: how often each chapter was asked
Counted from the 21 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 21 papers, with an OR pair counted once. Chapter tags are ours.
| Chapter | Asked in | Average marks per paper | Questions | Sample papers |
|---|---|---|---|---|
| Chemical Reactions and Equations | 21 of 21 | 5.8 | 81 | 4 of 4 |
| Acids, Bases and Salts | 21 of 21 | 6.6 | 85 | 4 of 4 |
| Metals and Non-metals | 21 of 21 | 6.5 | 76 | 4 of 4 |
| Carbon and its Compounds | 21 of 21 | 6.2 | 66 | 4 of 4 |
| Life Processes | 21 of 21 | 8.4 | 111 | 4 of 4 |
| Control and Coordination | 21 of 21 | 5.7 | 65 | 4 of 4 |
| How do Organisms Reproduce? | 21 of 21 | 6.7 | 73 | 4 of 4 |
| Heredity | 21 of 21 | 4.8 | 55 | 4 of 4 |
| Light – Reflection and Refraction | 21 of 21 | 7.6 | 72 | 4 of 4 |
| The Human Eye and the Colourful World | 21 of 21 | 4.4 | 60 | 4 of 4 |
| Electricity | 21 of 21 | 8.1 | 78 | 4 of 4 |
| Magnetic Effects of Electric Current | 21 of 21 | 5.1 | 61 | 4 of 4 |
| Our Environment | 21 of 21 | 4.9 | 64 | 4 of 4 |
"Questions" counts each OR alternative in the board papers. Linked chapters list their questions by year on the chapter page.