Following reactions occur at cathode during the electrolysis of aqueous silver chloride solution:
Ag⁺(aq) + e → Ag(s)Eo = +.80V
H⁺(aq) + e⁻ → 1/2H(q)Eo = 0.00V
On the basis of their standard reduction electrode potential (Eo) values, which reaction is feasible at the cathode and why?