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Standard electrode potential of the hydrogen electrode (SHE) is
A+1.00 V
B−1.00 V
C+0.76 V
D0.00 V
Answer & Solution
Correct answer: D. 0.00 V
1. The Standard Hydrogen Electrode is the chosen reference for electrode potential measurements.
2. By convention its potential is taken as exactly 0.00 V at 1 atm H₂, 1 M H⁺, 25 °C.
3. All other electrode potentials are measured relative to SHE.
_Source: Maharashtra Balbharati Std XII Chemistry, Ch 5 "Electrochemistry" §5.3_
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