Complete the following reaction equations:(i) Cr2O7 2 + Sn2+ + H+ →(ii) MnO4– + Fe2+ + H+ →
(i) Cr2O72– + 3Sn2++ 14H+ → 2Cr3+ + 3Sn4+ + 7H2O(ii) MnO4– + 5Fe2– + 8H+ → 5Fe3+ + Mn2+ + 4H2O