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The potential of a hydrogen electrode at...

The potential of a hydrogen electrode at pH=10 is :

A

`+0.59" V "`

B

`0.00" V"`

C

`-0.59" V "`

D

`-0.059" V "`

Text Solution

Verified by Experts

The correct Answer is:
C

(c ) `H^(+)+e^(-) to 1//2 H_(2)`
`E=E^(@)-(0.059)/(n)"log"(1)/([H^(+)])=-(0.059)/(1)pH`
`=(0-0.059)/(1)xx10=0-0.59=-0.59" V"`
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