Question

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

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

Answer 1

The correct option is B more reactive than

More reactive metals can displace relatively less reactive metals from their salt solutions.
In the given equation, 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:
$\text{Iron + Copper sulphate}$ $\to \text{Iron sulphate + Copper}$

Here, iron is more reactive than copper. So, iron displaces copper from copper sulphate.