Question

The figure represents the reactivity of metals then which of the following are correct?

• A. Sodium is more reactive than magnesium.
• B. Magnesium and aluminium metals displace calcium.
• C. Silver and copper metals displace lead.
• D. Iron and tin metals can displace magnesium.

Answer 1

The correct option is A Sodium is more reactive than magnesium.

The reactivity decreases down the line i.e. metal at the top is more reactive than the metal at the bottom. In the displacement reaction, more reactive metal displaces the less reactive metal. So only the following statements are true.

(a) Sodium is more reactive than magnesium.

(b) Magnesium and aluminium metals can displace lead in a chemical reaction.