6. You put a zinc (Zn) rod in a Cu^+2 solution. Will Cu plate out and...

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Answer 1

Answer #1

Zinc has standard reduction = -0.763 V

While copper = +0.337

This shows that zinc has less reduction potential as compared to copper ( or more negative) so it is good reducing agent and is more reactive than copper.

So , in electrolytic contact between two metals: Zinc will udergo oxidation while copper will undergo reduction as

Zn ---> Zn⁺² + 2e

Cu⁺² + 2e --> Cu

So yes zinc will get oxidized to Zn+2 and copper will plate out.

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Answer 2

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