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Reaction at the anode during the electro...

Reaction at the anode during the electrolysis of aqueous `CuSO_(4)` solution in presence of Cu electrode is -

A

`Cu(s)rarr Cu^(2)(aq)+2e , E_("Red")^(@)=+0.34V`

B

`H_(2)O(l)rarr(1)/(2)O_(2)(g)+2H^(+)(aq)+2e, E_("Red")^(@)=+0.40V`

C

`2OH^(-)(aq)rarr(1)/(2)O_(2)(g)+H_(2)O(l)+2e, E_("Red")^(@)=+0.40V`

D

`SO_(4)^(2-)(aq)rarrS_(2)O_(8)^(2-)(aq)+2e, E_("Red")^(@)=+2.0V`

Text Solution

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The correct Answer is:
A
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