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

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asked Dec 23, 2017 in Chemistry by sforrest072 (157,439 points) 60 409 932
What happens when sulphur dioxide is passed through an aqueous solution of Fe(III) salt?

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answered Dec 23, 2017 by mdsamim (213,225 points) 5 10 15
selected Dec 23, 2017 by sforrest072
 
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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.

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