Answer to Question #119820 in Inorganic Chemistry for Tarun gurung

Question

Explain with reason that Ni spatula can or cannot be used to stir copper sulphate solution?
Given E0 Ni2+ | Ni = - 0.2361V and E0 Cu2+ | Cu = 0.34 V

Answer 1

Higher value of reduction potential of Cu²⁺/Cu means that the Ni spatula cannot be used to stir the CuSO₄ solution because Ni reacts with CuSO₄ chemically. In this case Nickel as more active metal will displace less active Copper from its salt according to the reaction: CuSO₄(aq)+Ni(s) --> NiSO₄(aq)+Cu(s).