What is the standard reduction potential of the half-reaction: 2H+ (aq) + 2e- → H2 (g)?
Correct: B
The standard reduction potential of the half-reaction 2H+ (aq) + 2e- → H2 (g) is defined as 0.00 V. This is because the standard hydrogen electrode is used as a reference point for measuring the standard reduction potentials of other half-reactions.