Class 10 Science
Previous Board Examination Question Paper – Set 1
Time: 3 Hours Maximum Marks: 80
General Instructions:
- All questions are compulsory.
- The question paper consists of Sections A, B, C, D and E.
- Use of calculator is not permitted.
- Draw neat and labelled diagrams wherever required.
Section A – MCQs
(1 × 20 = 20 Marks)
1. Which gas is released during photosynthesis?
a) Carbon dioxide b) Oxygen c) Nitrogen d) Hydrogen
2. The functional unit of kidney is:
a) Neuron b) Nephron c) Alveolus d) Glomerulus
3. Which acid is present in vinegar?
a) Citric acid b) Acetic acid c) Lactic acid d) Sulphuric acid
4. The SI unit of electric current is:
a) Volt b) Ampere c) Ohm d) Coulomb
5. Which mirror is used as rear-view mirror in vehicles?
a) Plane mirror b) Concave mirror c) Convex mirror d) Spherical mirror
6. The process of transfer of pollen grains from anther to stigma is called:
a) Fertilisation b) Pollination c) Germination d) Reproduction
7. Which metal is most reactive?
a) Iron b) Copper c) Sodium d) Silver
8. The pH value of pure water is:
a) 1 b) 5 c) 7 d) 14
9. The energy possessed by a body due to its motion is:
a) Potential energy b) Chemical energy c) Kinetic energy d) Heat energy
10. Which part of the brain controls voluntary actions?
a) Cerebellum b) Medulla c) Cerebrum d) Spinal cord
Section B – Very Short Answer
(2 × 5 = 10 Marks)
11. Define photosynthesis.
12. Write the chemical formula of washing soda.
13. State Ohm’s law.
14. What is puberty?
15. Name the hormone that regulates blood sugar level.
Section C – Short Answer
(3 × 6 = 18 Marks)
16. Explain the process of respiration in human beings.
17. Write any three differences between acids and bases.
18. State three laws of reflection.
19. Describe the structure of a nephron with diagram.
20. Explain how sound is produced in human beings.
21. What is biodegradable waste? Give examples.
Section D – Long Answer
(5 × 4 = 20 Marks)
22. Explain the process of photosynthesis with a neat labelled diagram.
23. Describe the process of reproduction in flowering plants.
24. Derive the formula for electric power.
25. Explain the working of human eye with diagram.
Section E – Case Study Based Questions
(4 × 3 = 12 Marks)
26. A student observed that iron objects rust when exposed to air and moisture.
a) What is rusting?
b) Name two methods to prevent rusting.
c) Why is rusting harmful?
Shaktimatha CBSE Learning
Class 10 Science – Previous Board Exam Question Paper (Set 1)
⬅️ Back to Class 10 Science Library
🔬 Class 10 Science – Previous Board Question Papers & Full Answers
This complete library is designed for Class 10 CBSE students to practise previous board exam papers and learn how to write perfect answers in Physics, Chemistry, and Biology.
📝 Previous Board Question Papers
- Question Paper – Set 1
- Question Paper – Set 2
- Question Paper – Set 3
- Question Paper – Set 4
- Question Paper – Set 5
✍️ Full Answers (Student Writing Style)
- Full Answers – Set 1
- Full Answers – Set 2
- Full Answers – Set 3
- Full Answers – Set 4
- Full Answers – Set 5
📚 Additional Board Sets (Practice)
- Additional Question Paper – Set 1A
- Additional Full Answers – Set 1A
- Additional Question Paper – Set 2A
- Additional Full Answers – Set 2A
- Additional Question Paper – Set 3A
- Additional Full Answers – Set 3A
✔ First attempt the question paper on your own
✔ Then compare with full answers
✔ Observe diagrams, keywords, and steps
✔ Practise again to improve speed and accuracy
Prepared with dedication by Shaktimatha Learning ✨
Clear concepts • Exam confidence • Board success
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