SELECT * FROM question_mgmt as q WHERE id=2037 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=3 AND subId=9 AND chapterId=62 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 12th chemistry The p-Block Elements what happens when sulphur dioxide is passed throug

Question:

What happens when sulphur dioxide is passed through an aqueous solution of Fe(III) salt?

Answer:

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+


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