Name the substance oxidised, reduced, oxidising agent and reducing agent in the following reaction :
`Zn(s) + FeSO_(4)(aq) to ZnSO_(4)(aq) + Fe(s)`

Explanation

The equation in the ionic form may be written as :
`Zn(s) + Fe^(2+)(aq) to Zn^(2+)(aq) + Fe(s)`
(a) `Zn(s)` is oxidised to `Zn^(2+)(aq)` ions since it has lost electrons.
(b) `Fe^(2+)(aq)` ions are reduced to `Fe(s)` since they have gained electrons.
(c) `Zn(s)` is reducing agent since it is electron losing species.
(d) `Fe^(2+)(aq)` ions are oxidising agents since these are electron accepting species.