Question

6. The hydrogen electrode is respresented as
(a) H (8) H*
(b) Pt, H, (g)/H
(c) Pt M* (aq)
(d) None of these​

Answer 1

The standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials. Its absolute electrode potential is estimated to be 4.44 ± 0.02 V at 25 °C, but to form a basis for comparison with all other electroreactions, hydrogen's standard electrode potential (E°) is declared to be zero volts at any temperature.[1] Potentials of any other electrodes are compared with that of the standard hydrogen electrode at the same temperature.