Question

Name a reaction in which an element displaces another element from its compound.

Answer 1

• A chemical reaction in which a more reactive element displaces a less reactive element from its compound is called a displacement reaction.

Example: $$\begin{gathered} \mathrm{Fe}\left(\mathrm{s}\right)+{\mathrm{CuSO}}_4\left(\mathrm{s}\right)\to {\mathrm{FeSO}}_4\left(\mathrm{s}\right)+\mathrm{Cu}\left(\mathrm{s}\right) \\ \mathrm{Iron}\mathrm{Copper}\mathrm{sulphate}\mathrm{Ferrous}\mathrm{sulphate}\mathrm{Copper} \end{gathered}$$

• In this reaction, iron being more reactive displaces copper which is less reactive.

Therefore, a reaction in which an element displaces another element from its compound is called a displacement reaction.