electrochemistry

Question: Four colourless salt solutions are placed in separate test tubes and a strip of copper is placed in each. Which solution finally turns blue

1) $Pb{{(N{{O}_{3}})}_{2}}$

2) $Zn{{(N{{O}_{3}})}_{2}}$

3) $AgN{{O}_{3}}$

4) $Cd{{(N{{O}_{3}})}_{2}}$

Solution:

Explanation: No Explanation

Electrode potential Ecell Nernst equation and ECS

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