Question

A reaction in which a more reactive element displaces a less reactive element from its compound or solution is known as a reaction.

• A. displacement
• B. combination
• C. decomposition

Answer 1

The correct option is A displacement

Displacement reaction is a reaction in which a more reactive metal displaces a less reactive metal from its salt solution.

Example : $\text{Fe (s)}+{\text{CuSO}}_4\text{(aq)}\to {\text{FeSO}}_4\text{(aq)}+\text{Cu (s)}$

In the above reaction, iron displaces copper from copper sulphate solution as iron is more reactive than copper.