A 1 M solution of H,SO, is electrolysed. Select correct statement in respect of products obtained at anode and cathode respectively: Given : 2502 S20ž +2e";E° = -2.01 V H20(1) - →2H+ (aq) +1/202(g) + 2e ;E° = -1.23 V (a) concentration of H2SO4 remain constant; H., 0, (b) concentration of H So, increases; O2, H, (C) concentration of H2SO4 decreases; O2, H2 (d) concentration of H.SO, remains constant; S2O3-,H,