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The emf of the cell involving the follow...

The emf of the cell involving the following reaction, `2Ag^(+) +H_(2) rarr 2Ag +2H^(+)` is `0.80` volt. The standard oxidation potential of silver electrode is:-

A

`-0.80` volt

B

`0.80` volt

C

`0.40` volt

D

`-0.40` volt

Text Solution

Verified by Experts

The correct Answer is:
A
`E_("cell")^(@)=E_("cathode")-E_("andoe")0.80= E_(Ag^(+)//Ag)^(@)-E_(H_(2)//H^(+))^(@)`
`0.80 = E_(Ag^(+)//Ag)-0`
`E_("oxidation")^(@)= - E_("red")^(@)= -0.80 V`
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