Question

Give an example of each of the following types of displacement reaction:

The reaction in which a metal displaces another metal.

Answer 1

Displacement Reaction

A displacement reaction is a type of reaction in which a replacement between one cation and one anion present in the distinct reactants is observed. It can be represented as:

$\mathrm{AX}+\mathrm{Y}\to \mathrm{XY}+\mathrm{A}$

Example of displacement reaction

The reaction in which a metal displaces another metal is given as:

$$\begin{gathered} \mathrm{Zn}\left(\mathrm{s}\right)+{\mathrm{FeSO}}_4\left(\mathrm{aq}\right)\to {\mathrm{ZnSO}}_4\left(\mathrm{aq}\right)+\mathrm{Fe}\left(\mathrm{s}\right) \\ \mathrm{zinc}\mathrm{iron}\mathrm{sulphate}\mathrm{zinc}\mathrm{sulphate}\mathrm{iron} \end{gathered}$$

In the given reaction, both iron and zinc are metals. Here, zinc displaces iron from its compound. Hence, it is a reaction in which a metal displaces another metal.