Class 10 Science – Full MCQ Sample Paper (25 Questions)
Practice this complete MCQ-based sample paper prepared as per CBSE exam trend. Questions include PYQ-type, conceptual and application-based MCQs.
Section A – Biology (Q1–Q9)
Q1. Which process releases energy in cells? [Easy]
Answer: Respiration releases energy.
Q2. Functional unit of kidney is: [Easy]
Answer: Nephron filters blood.
Q3. Which blood group is universal donor? [Moderate]
Answer: O− lacks antigens.
Q4. Main function of bile is: [Moderate]
Answer: Bile breaks fat into droplets.
Q5. DNA is located in: [Easy]
Answer: DNA stores genetic info.
Q6. Which is NOT a communicable disease? [Moderate]
Answer: Diabetes is non-infectious.
Q7. Oxygen is transported by: [Easy]
Answer: Haemoglobin binds oxygen.
Q8. Growth hormone is secreted by: [Moderate]
Answer: Pituitary is master gland.
Q9. Human heart has how many chambers? [Easy]
Answer: Two atria + two ventricles.
Section B – Chemistry (Q10–Q17)
Q10. Metal stored in kerosene is: [Easy]
Answer: Sodium reacts with air/water.
Q11. pH of acidic solution is: [Easy]
Answer: Acids have pH < 7.
Q12. Rust is: [Moderate]
Answer: Rust = Fe₂O₃·xH₂O
Q13. Ethanol belongs to: [Easy]
Answer: −OH functional group.
Q14. Alloy of copper and zinc is: [Easy]
Answer: Brass = Cu + Zn.
Q15. Soap works better in: [Moderate]
Answer: Hard water forms scum.
Q16. Limestone is: [Easy]
Answer: Calcium carbonate.
Q17. Which is amphoteric? [Moderate]
Answer: Reacts with acid & base.
Section C – Physics (Q18–Q25)
Q18. SI unit of electric current is: [Easy]
Answer: Ampere (A).
Q19. Mirror used as rear-view mirror: [Easy]
Answer: Wide field of view.
Q20. Unit of power of lens: [Easy]
Answer: Dioptre = 1/f.
Q21. Electric power formula: [Moderate]
\[ P = VI \]
Answer: P = VI.
Q22. Image formed by concave mirror at focus is: [Moderate]
Answer: Parallel rays.
Q23. Commercial unit of energy: [Easy]
Answer: Electricity billing.
Q24. Speed of light is maximum in: [Moderate]
Answer: No medium resistance.
Q25. Magnetic field is strongest at: [Moderate]
Answer: Field lines dense at poles.
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