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Following reactions can occur at cathode...

Following reactions can occur at cathode during the electrolysis of aqueous silver nitrate solution using Pt electrodes :
`Ag^(+)""_((aq)) ""^(+e^(-))to Ag""_((s)),E^(@)=0.80V`
`H^(+)""_((aq)) ""^(+e^(-))to 1/2H_(2(g)),E^(@)=0.00V`
On the basis of theri standars electrode protential values, which reaction is feasible at cathode and why ?

Text Solution

Verified by Experts

The species that get reduced at cathode is that one having higher value of standard reduction potential. Hence, the reaction that will occur at cathode is
`Ag_(aq)^(+) + e^(-)rightarrow Ag_(s)`.
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