Question

A more reactive metal displaces a less reactive metal from its _____________ solution.

Answer 1

• A displacement reaction is a type of reaction in which more reactive metal displaces less reactive metal from its salt solution.
• Example: Zinc ($\mathrm{Zn}$) is more reactive than Copper ($\mathrm{Cu}$), hence Zinc displaces Copper from Copper sulfate solution(${\mathrm{CuSO}}_4$).
• Chemical equation:

$\underset{\mathrm{Zinc}}{\mathrm{Zn}\left(\mathrm{s}\right)}+\underset{\mathrm{Copper}\mathrm{sulphate}}{{\mathrm{CuSO}}_4\left(\mathrm{aq}\right)}\to \underset{\mathrm{Zinc}\mathrm{sulfate}}{{\mathrm{ZnSO}}_4\left(\mathrm{aq}\right)}+\underset{\mathrm{Copper}}{\mathrm{Cu}\left(\mathrm{s}\right)}$

Therefore, a more reactive metal displaces a less reactive metal from its salt solution.