Class 10 Science – Metals and Non-Metals (Top 50 Most Important MCQs)

1. Which metal is liquid at room temperature?

A) Sodium
B) Mercury
C) Iron
D) Aluminium
Answer: B

2. Which non-metal is liquid at room temperature?

A) Bromine
B) Sulphur
C) Chlorine
D) Iodine
Answer: A

3. Which non-metal is a good conductor of electricity?

A) Sulphur
B) Graphite
C) Phosphorus
D) Oxygen
Answer: B

4. Metals are generally:

A) Brittle
B) Poor conductors
C) Malleable
D) Soft
Answer: C

5. Which metal is stored in kerosene?

A) Copper
B) Sodium
C) Iron
D) Silver
Answer: B

6. Metals react with oxygen to form:

A) Acids
B) Metal oxides
C) Salts
D) Bases
Answer: B

7. Rust is:

A) Iron sulphide
B) Hydrated iron oxide
C) Iron chloride
D) Iron carbonate
Answer: B

8. Galvanisation is coating iron with:

A) Copper
B) Tin
C) Zinc
D) Silver
Answer: C

9. Which is the best conductor of electricity?

A) Copper
B) Silver
C) Aluminium
D) Gold
Answer: B

10. Which metal is used in electrical wires?

A) Copper
B) Sodium
C) Zinc
D) Iron
Answer: A

11. Which gas is produced when zinc reacts with dilute HCl?

A) Oxygen
B) Hydrogen
C) Nitrogen
D) Carbon dioxide
Answer: B

12. Copper does not react with:

A) Dilute HCl
B) Oxygen
C) Sulphur
D) Chlorine
Answer: A

13. Which metal is extracted by electrolysis?

A) Aluminium
B) Iron
C) Copper
D) Zinc
Answer: A

14. Which metal is used in thermite reaction?

A) Copper
B) Aluminium
C) Silver
D) Zinc
Answer: B

15. Gold is:

A) Highly reactive
B) Least reactive
C) Amphoteric
D) Corrosive
Answer: B

16. Which oxide is amphoteric?

A) Na₂O
B) Al₂O₃
C) MgO
D) CaO
Answer: B

17. Metals react with water to produce:

A) Oxygen
B) Hydrogen
C) Carbon dioxide
D) Nitrogen
Answer: B

18. The most reactive metal is:

A) Gold
B) Potassium
C) Copper
D) Silver
Answer: B

19. Aluminium is used for:

A) Jewellery
B) Food packaging
C) Bulbs
D) Coins
Answer: B

20. Which metal is used in making jewellery?

A) Iron
B) Gold
C) Sodium
D) Calcium
Answer: B

21. Which metal is least reactive?

A) Sodium
B) Calcium
C) Gold
D) Magnesium
Answer: C

22. Which gas causes corrosion?

A) Hydrogen
B) Oxygen
C) Helium
D) Nitrogen
Answer: B

23. Which property allows metals to be drawn into wires?

A) Ductility
B) Malleability
C) Sonority
D) Hardness
Answer: A

24. Which property allows metals to be beaten into sheets?

A) Ductility
B) Malleability
C) Sonority
D) Brittleness
Answer: B

25. Which metal is used in aircraft?

A) Aluminium
B) Iron
C) Lead
D) Zinc
Answer: A

26. Which metal reacts vigorously with cold water?

A) Sodium
B) Copper
C) Silver
D) Gold
Answer: A

27. Which metal reacts with steam?

A) Iron
B) Gold
C) Silver
D) Copper
Answer: A

28. Which metal does not react with water?

A) Sodium
B) Calcium
C) Gold
D) Potassium
Answer: C

29. Which metal oxide is basic?

A) MgO
B) SO₂
C) CO₂
D) P₂O₅
Answer: A

30. Non-metals usually form:

A) Basic oxides
B) Acidic oxides
C) Neutral oxides
D) Salts
Answer: B

31. Which metal is present in haemoglobin?

A) Iron
B) Copper
C) Aluminium
D) Sodium
Answer: A

32. Which metal is used for making cooking utensils?

A) Aluminium
B) Sodium
C) Potassium
D) Calcium
Answer: A

33. Which non-metal is essential for respiration?

A) Nitrogen
B) Oxygen
C) Sulphur
D) Chlorine
Answer: B

34. Which metal is used in batteries?

A) Zinc
B) Gold
C) Silver
D) Iron
Answer: A

35. The reactivity series starts with:

A) Gold
B) Potassium
C) Copper
D) Silver
Answer: B

36. The least reactive metal in the series is:

A) Gold
B) Zinc
C) Magnesium
D) Calcium
Answer: A

37. Which metal can displace copper from CuSO₄ solution?

A) Zinc
B) Silver
C) Gold
D) Mercury
Answer: A

38. Which solution turns blue due to copper ions?

A) CuSO₄
B) NaCl
C) HCl
D) NaOH
Answer: A

39. Which metal is used for galvanisation?

A) Zinc
B) Copper
C) Iron
D) Silver
Answer: A

40. Which metal is extracted from bauxite?

A) Aluminium
B) Iron
C) Copper
D) Zinc
Answer: A

41. Which non-metal is used in water purification?

A) Chlorine
B) Sulphur
C) Carbon
D) Nitrogen
Answer: A

42. Diamond is an allotrope of:

A) Oxygen
B) Carbon
C) Sulphur
D) Phosphorus
Answer: B

43. Graphite is used in:

A) Pencil leads
B) Jewellery
C) Bulbs
D) Wires
Answer: A

44. Which metal produces a pop sound with acid?

A) Zinc
B) Gold
C) Silver
D) Copper
Answer: A

45. Which metal is highly malleable?

A) Gold
B) Sodium
C) Calcium
D) Magnesium
Answer: A

46. Which metal is highly ductile?

A) Gold
B) Iron
C) Zinc
D) Tin
Answer: A

47. Which metal is used to make coins?

A) Copper
B) Iron
C) Sodium
D) Calcium
Answer: A

48. Which metal is magnetic?

A) Iron
B) Gold
C) Silver
D) Aluminium
Answer: A

49. Which metal is protected by painting?

A) Iron
B) Gold
C) Silver
D) Copper
Answer: A

50. The most common method to prevent rusting is:

A) Heating
B) Galvanisation
C) Cooling
D) Washing
Answer: B