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The P-Block Elements

Question
CBSEENCH12006736

What happens when sulphur dioxide is passed through an acidic solution of sodium chlorate?

Solution
When sulphur dioxide is passed through an acidic solution of sodium chlorate. Sodium chlorate oxidises SO2 to SO42– and itself reduces to form ClO2.
2NaClO3 + SO2→ 2ClO2+ Na2SO4