Question

9. Which of the following properties are of metals?

i) they usually have low densities

ii) they usually have high melting and boiling point.

iii) they are generally good conductors of heat and electricity.

• A. Only i and ii
• B. Only ii and iii
• C. Only i and iii
• D. i, ii and iii

Answer 1

The correct option is B

Only ii and iii

Explanation for the correct option:
b) Properties of metals:

• Metals have high melting and boiling point as they possess a strong chemical metallic bond.
• Metals are good conductors of heat and electricity because it has free electrons.
• Due to the strong intermolecular force of attraction between the particles, metals usually have high densities.
• Examples: Aluminium(Al), Iron(Fe), etc.

Therefore, option B is correct.