Q48 / 150 · MHT CET 2019 (Shift 2) · Chemistry

Standard hydrogen electrode (SHE) is a

Correct answer
A
Primary reference electrode
B
Secondary reference electrode
C
Metal – sparingly soluble salt electrode
D
Metal – metal ion electrode

Solution

Standard hydrogen electrode (SHE) is primary reference electrode. SHE is represented by

P t (s) |H_{2} g| H^{+} (a q),

is assigned a zero potential at all temperatures corresponding to reaction.

H^{+} (a q) + e^{-} \to \frac{1}{2} H_{2} (g)

Hence, the correct answer is option: 'A'.

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