State the ascending order of reactivity for Cu, Ag and Fe metals based on the reaction given below:
(i) `Fe(s)+ CuSO_(4) to FeSO_(4)(aq)+Cu(s)`
(ii) `Cu(s)+ FeSO_(4)(aq) to "No reaction"`
(iii) `Cu(s) +2AgNO_(3)(aq) to Cu(NO_(3))_(2)(aq)+2Ag(s)`
(iv) `2Ag(s)+Cu(NO_(3))_(2) to "No reaction"`

Explanation

Based on the given reaction, ascending order of reactivity of Cu, Ag and Fe is as follows:
`Ag lt Cu lt Fe`