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Electrolytic Dissociation

An aqueous el...

Question

An aqueous electrolyte consists of the ions mentioned in the list. The ion which could be discharged most readily during electrolysis is:

A

F e^{2 +}

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B

C u^{2 +}

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C

H^{+}

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D

N a^{+}

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Solution

The correct option is B $C u^{2 +}$
As reduction potential of $C u^{+ 2}$ is highest so it will reduce first among these ions as
$C u^{+ 2} + 2 e^{-} \to C u$

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