Metals and Non-metals Multiple Choice Questions and Answers

21. 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

22. Metal which is the best conductor of electricity

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

23. The colour of iodine is

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

24. The nonmetal which exhibits yellow colour is

1. Silicon
2. Phosphorous
3. Sulphur
4. Carbon

25. The non metal which is hard is

1. Sulphur
2. Chlorine
3. Graphite
4. Diamond

26. Which of the following is a property of nonmetals?

1. Low densities
2. Low melting points
3. Poor conductor of electricity
4. All the three

27. The nonmetal which is a liquid at room temperature is

1. Chlorine
2. Nitrogen
3. Bromine
4. Hydrogen

28. Metal which does not react with HCl is

1. Ag
2. Mg
3. Al
4. Fe

29. Metal which reacts vigorously with HCl to produce salt and hydrogen is

1. Na
2. Zn
3. Sn
4. Pb

30. The nonmetal capable of gaining as well as losing an electron is

1. Hg
2. Ca
3. Ag
4. H