Question

Out of the following conditions, Which is not correct for SHE / NHE ( Standard hydrogen Electrode / Normal Hydrogen Electrode)

Answer 1

Both are correct and there also exists RHE

NHE (Normal Hydrogen Electrode): potential of a platinum electrode in 1 M acid solution

SHE (Standard Hydrogen Electrode): potential of a platinum electrode in a theoretical ideal solution (the current standard for zero potential for all temperatures)

RHE (Reversible Hydrogen Electrode): a practical hydrogen electrode whose potential depends on the pH of the solution