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Oxidation potential of unimoles of calom...

Oxidation potential of unimoles of calomel is

A

`+0.25 v`

B

`0.00V`

C

`+0.287 V`

D

`-0.28 V`

Text Solution

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The correct Answer is:
D
calomel is sued as secondary reference electrode since Hg is less reactive than H its standard reduction potential is positve hence its standard oxidation potentia must be negative i.e - 0.28 [ As standart reductin potential =- standard oxidation potential ]
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