C-08-Q181mediumsingle_mcqReaction at the anode in electrolysis of water:a4 HX++4 eX−→2 HX2\ce{4H+ + 4e- -> 2H2}4HX++4eX−b4 OHX−→OX2+2 HX2O+4 eX−\ce{4OH- -> O2 + 2H2O + 4e-}4OHX−c2 HX2O→HX3OX++OHX−\ce{2H2O -> H3O+ + OH-}2HX2dHX2→2 HX++2 eX−\ce{H2 -> 2H+ + 2e-}HX2