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Standard hydrogen electrode (SHE) is a...

Standard hydrogen electrode (SHE) is a

A

primary reference electrode

B

secondary reference electrode

C

metal - sparingly soluble salt electrode

D

metal - metal ion electrode

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Verified by Experts

The correct Answer is:
A
Standard hydrogen electrode (SHE) is primary reference electrode, SHE is represented by `Pt_((s))|H_(2) (g)|H^(+)` (aq), is assigned a zero potential at all temperature corresponding to reaction
`H^(+) (aq) + e^(-) to (1)/(2) H_(2) (g)`
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