Metals and Non-metals Multiple Choice Questions and Answers

11. Antimony and arsenic belong to the category of

1. Metals
2. Metalloids
3. Nonmetals
4. Minerals

12. Noble’s gases do not react because they have _______electrons in their valence shell.

1. 3
2. 6
3. 1
4. 8

13. As we go down in the electrochemical series of metals, the reactivity

1. Decreases and then increases
2. Increases and then decreases
3. Decreases
4. Increases

14. The element present below hydrogen in electrochemical series is

1. Mg
2. Hg
3. Pb
4. Sn

15. The metal which can replace magnesium from its salt is

1. Ca
2. Al
3. Zn
4. Fe

16. The most reactive of the following metals is

1. Ca
2. Al
3. Ni
4. Pb

17. Metals can be hammered into thin sheets. This property is called

1. Density
2. Malleability
3. Ductility
4. Strength

18. Metals are malleable and ductile because

1. Metals can be shine
2. Metals produce sound
3. Layers of metal atoms can slip over each other
4. Atoms form close clusters

19. Metal which is the best conductor of electricity

1. Nickel
2. Silver
3. Gold
4. Sodium

20. The colour of iodine is

1. Violet
2. Green
3. White
4. Brown