Question

Balance Mno4- + SO2. gives Mn2+ + HSO4- in basic medium

Answer 1

Answer:

4MnO4^- +5SO2+16H20----->4Mn2^+ + 5HSO4+12OH^-

Explanation:

First half [MnO4^-+8H2O+5e^- ------->Mn2^+ +4H20+8OH^- ]×4and second half [SO2+10H2O+20OH^- ------->5H2SO4+20H2O]×4