Question

A ___________reactive metal displaces a less reactive metal from its compounds

Answer 1

Displacement reaction:

• Displacement reaction is a reaction in which a more reactive metal displaces a less reactive metal from its compound.
• For example iron($\mathrm{Fe}$) displaces copper($\mathrm{Cu}$) from copper sulphate(${\mathrm{CuSO}}_4$) solution as iron is more reactive than copper.
• $\underset{\mathrm{iron}}{\mathrm{Fe}\left(\mathrm{s}\right)}+\underset{\mathrm{copper}\mathrm{sulphate}}{{\mathrm{CuSO}}_4\left(\mathrm{aq}\right)}\to \underset{\mathrm{ferrous}\mathrm{sulphate}}{{\mathrm{FeSO}}_4\left(\mathrm{aq}\right)}+\underset{\mathrm{copper}}{\mathrm{Cu}\left(\mathrm{s}\right)}$

Therefore, a more reactive reactive metal displaces a less reactive metal from its compounds.