The World of Metals and Non-metals Part 1: MCQs (Q1–Q25)
📘 Chapter 4 – The World of Metals and Non-metals
🔹 Part 1: Properties of Materials (Q1–Q25)
Q1. Which of the following is a property of metals?
A) Poor conductor of heat
B) Brittle
C) Lustrous
D) Dull
✅ Answer: C) Lustrous
Explanation:
- (A) Poor conductor → Non-metal property.
- (B) Brittle → Non-metal property.
- (C) Lustrous (shiny) → Metals like gold, copper (Correct).
- (D) Dull → Non-metals like sulphur.
Q2. Which metal is liquid at room temperature?
A) Iron
B) Mercury
C) Copper
D) Aluminium
✅ Answer: B) Mercury
Explanation:
- Iron, copper, aluminium → Solids at room temp.
- Mercury → Only liquid metal (Correct).
Q3. Which non-metal is essential for life?
A) Nitrogen
B) Oxygen
C) Carbon
D) All of these
✅ Answer: D) All of these
Explanation:
- Nitrogen → Plant growth.
- Oxygen → Respiration.
- Carbon → Found in all living beings.
Q4. Which property is common to all metals?
A) Malleability
B) Poor conductor
C) Brittle
D) Dull
✅ Answer: A) Malleability
Q5. Which of the following is a non-metal?
A) Iron
B) Aluminium
C) Sulphur
D) Copper
✅ Answer: C) Sulphur
Q6. The ability to be drawn into wires is called:
A) Malleability
B) Ductility
C) Conductivity
D) Rigidity
✅ Answer: B) Ductility
Q7. Which metal is most ductile?
A) Silver
B) Copper
C) Aluminium
D) Gold
✅ Answer: D) Gold
Q8. Which non-metal is used in making matchsticks?
A) Sulphur
B) Phosphorus
C) Carbon
D) Oxygen
✅ Answer: B) Phosphorus
Q9. Which of these is NOT a property of non-metals?
A) Poor conductor
B) Dull
C) Sonorous
D) Brittle
✅ Answer: C) Sonorous
Q10. Which metal is used in making electrical wires?
A) Aluminium
B) Copper
C) Silver
D) All of these
✅ Answer: D) All of these
Q11. Which of the following is malleable?
A) Sulphur
B) Iron
C) Coal
D) Wood
✅ Answer: B) Iron
Q12. Which property makes metals suitable for bells?
A) Sonority
B) Ductility
C) Malleability
D) Conductivity
✅ Answer: A) Sonority
Q13. Which of these is a good conductor of heat?
A) Wood
B) Plastic
C) Iron
D) Rubber
✅ Answer: C) Iron
Q14. Which non-metal is used in pencils?
A) Carbon (Graphite)
B) Sulphur
C) Phosphorus
D) Oxygen
✅ Answer: A) Carbon (Graphite)
Q15. Which property is NOT of metals?
A) Lustrous
B) Brittle
C) Ductile
D) Conductive
✅ Answer: B) Brittle
Q16. Which non-metal is used in making fertilizers?
A) Nitrogen
B) Oxygen
C) Sulphur
D) Carbon
✅ Answer: A) Nitrogen
Q17. The property of being hammered into sheets is:
A) Conductivity
B) Malleability
C) Ductility
D) Rigidity
✅ Answer: B) Malleability
Q18. Which metal is used in thermometers?
A) Aluminium
B) Mercury
C) Copper
D) Iron
✅ Answer: B) Mercury
Q19. Which of these metals is used in making ornaments?
A) Iron
B) Gold
C) Aluminium
D) Sodium
✅ Answer: B) Gold
Q20. Which property makes aluminium useful for making foils?
A) Ductility
B) Conductivity
C) Malleability
D) Sonority
✅ Answer: C) Malleability
Q21. Which non-metal is used in antiseptics?
A) Sulphur
B) Iodine
C) Oxygen
D) Nitrogen
✅ Answer: B) Iodine
Q22. Which of the following is NOT a metal?
A) Sodium
B) Aluminium
C) Sulphur
D) Copper
✅ Answer: C) Sulphur
Q23. Which non-metal is soft and can be cut with a knife?
A) Phosphorus
B) Sulphur
C) Sodium
D) Graphite
✅ Answer: C) Sodium
Q24. Which is the lightest metal?
A) Iron
B) Gold
C) Aluminium
D) Lithium
✅ Answer: D) Lithium
Q25. Which non-metal is used in water purification?
A) Chlorine
B) Nitrogen
C) Carbon
D) Oxygen
✅ Answer: A) Chlorine
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