Question

A and B are two different metals.
A + salt of B $\to$ B+ salt of A
So, metal A ismetal B

• A. less reactive than
• B. more reactive than
• C. as reactive as

Answer 1

The correct option is B more reactive than

Highly reactive metals can displace relatively less reactive metals from their salt solutions. Since metal A is able to displace metal B from its salt solution (salt of metal B), metal A is considered to be more reactive than metal B.

For example:
$\text{Fe(s)}+{\text{CuSO}}_4\text{(aq)}\to +{\text{FeSO}}_4\text{(aq)}+\text{Cu (s)}$
Here, $\text{Fe}$ is more reactive than $\text{Cu}$. So, $\text{Fe}$ displaces $\text{Cu}$ from ${\text{CuSO}}_4$.