Materials: Metals and Non-Metals Class 8 MCQs Questions with Answers

1. Iron is galvanised by coating it with

2. Boron is

3. Which of the following is a liquid at room temperature?

4. Which one of the following metals is the most ductile?

5. Out of these, which one is more reactive with water?

6. Which one of the following metals is the most reactive and stored in kerosene?

7. Which metal reacts readily with cold water?

8. Metals are

9. …………. is used to prepare sulphuric acid.

10. ………. is used in making mirrors.

11. Name the gas evolved when magnesium reacts with dilute hydrochloric acid

12. A mineral from which. a metal can be extracted on the commercial scale, economically is called

13. The metal which is liquid at room temperature is

14. The best electrical conductor is

15. Materials having qualities of both metals and non-metals are

16. ………. foils are used as packing material.

17. The metal which is not corroded by air, water and acid is

18. A solution of …………. in alcohol has antiseptic properties.

19. Sodium is ______ reactive than magnesium.

20. The most reactive metal is