Acidified potassium manganate (VII) solution is delocourised when sulphur (VI) oxide is bubbled through it. The equation for the reaction is given below

Acidified potassium manganate (VII) solution is delocourised when sulphur (VI) oxide is bubbled through it. The equation for the reaction is given below

$2H_2O(l) + 5SO_2(g) + 2KMnO_4(aq) \rightarrow K_2SO_4(aq) + 2MnSO_4(aq) + 2H_2SO_4(aq)$
a) Which reactant is oxidized? Explain
b) Other than the manufacture of sulphuric (IV) acid, state one other use of Sulphur (IV) oxide

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a) Sulphur (IV) oxide is oxidized. This is because oxidation state of sulphur increase from +4 to +6

b) It is used as a food preservative

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johnmulu answered the question on February 7, 2017 at 09:03

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