Question

elecrotytic reduction of al2o3​

Answer 1

Answer:

Explanation:

electrolytic reduction means electrolysis

al2o3 is basic in nature which means it dissolve into ions in the presence of water, so here water is taken

here water is oxidised as well as reduced

cation goes near cathode and anion goes near anode

REACTION AT CATHODE

here there are two h2o and al+3

reduction takes at cathode , so compare reduction potential of h2o and al+3

if you see reduction potential of h2o is greater than that of al+3

2h2o+2e=h2+2oh-

REACTION AT ANODE

here there are h2o and o-2

if you see oxidation potential of h2o is -1.23  which is less than o-2

so here oxidation of o-2 takes place

o-2=o2 +2e

if you see overall reaction it will be 2h2o+o-2 = h2+o2+2oh-