Can we stir `CuSO_(4)` solution by a Ni saptula ? Give reasons for your answer .
[ Given `E_(NI^(2+)|NI)^(@)lt E_(Cu^(2+)|Cu)^(@)` , ] Ni has a greater redusing power than , Cu and `Cu^(2+)` has a greater oxidising power than `Ni^(2+)` , Hence , `CuSO_(4)` connot be standard be stirred with Ni spatula .

Explanation

Since `E_(Ni^(2+)|Ni)^(@)ltE_(Cu^(2+)|Cu)^(@), Ni` has a greater reducing power than `Cu, and Cu^(2+)` has a greater oxidising power than `Ni^(2+)`. So, `Ni` will react spontaneously with `Cu^(2+)` to form `Cu and Ni^(2+)`. Hence, `CuSO_(4)` cannot be stirred with Ni spatula.