Notifications
Clear all
0
18/02/2022 5:14 pm
Topic starter
What happens when sulphur dioxide is passed through an aqueous solution of Fe(III) salt?
1 Answer
0
18/02/2022 5:18 pm
SO2 acts as a reducing agent when passed through an aqueous solution containing Fe (III) salt. It reduces Fe (III) to Fe (II) i.e., ferric ions to ferrous ions.
2Fe3+ + SO2 + 2H2O → 2Fe2+ + SO42- + 4H+