(a) Explain electrochemical series.
(b) Can we store 1M `CuSO_(4)` solution in zinc vessel or not, why ?

Explanation

(a) For Answer, Consult Section 7.
(b) No, it is not possible. Zinc `(E^(@)=-0.76V)` will reduce `Ca^(2+)` ions `(E^(@)=+0.34V)` by taking part in the displacement reaction.
`Zn(s)+Cu^(2+)(aq) to Zn^(2+)(aq)+Cu(s)`