electrochemistry

Question: When copper turnings are added to silver nitrate solution, a blue coloured solution is formed after some time. It is because, copper



1) Displaces silver from the solution
2) Forms a blue coloured complex with $AgN{{O}_{3}}$
3) Is oxidised to $C{{u}^{2+}}$
4) Is reduced to $C{{u}^{2+}}$
Solution: Explanation: No Explanation
Electrode potential Ecell Nernst equation and ECS

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