Question

\[\ce{CuSO4_{(aq)} + Fe_{(s)} -> FeSO4_{(aq)} + Cu_{(s)}}\]

\[\ce{FeSO4_{(aq)} + Zn_{(s)} -> ZnSO4_{(aq)} + Fe_{(s)}}\]

On the basis of the above reactions, indicate which is most reactive and which is least reactive metal out of zinc, copper and iron.

Answer 1

In the first reaction, Fe displaces Cu from CuSO₄ solution. So Fe is more reactive than Cu. In the second reaction, Zn displaces Fe from FeSO₄ solution. So Zn is more reactive than Fe. Hence, it can be concluded that Zn is the most reactive metal and Cu is the least reactive metal out of zinc (Zn), copper (Cu) and iron (Fe).