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The sulfite ion (SO3^2-) was involved in a chemical reaction in which it underwent oxidation. Based on the change in oxidation numbers, which of the species listed below is a possible oxidation product of the reaction? a) SO2 (g) b) S (s) c) SO4^2- (aq) d) S2O3^2- (aq) e) S^2- (aq)

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ANSWER

[tex]SO_4^{2-}(aq)\text{ --------- option C}[/tex]

STEP-BY-STEP EXPLANATION:

Sulfite ion is readily oxidized to sulfate. This occurs because sulfite ion is exposed to air for a long period of time. Oxidation occurs with atmospheric oxygen.

Below is the oxidation reaction of sulfite ion

[tex]2SO_3^{2-}(aq)\text{ + }O_{2(g)\text{ }}\rightarrow2SO_4^{2-}(aq)[/tex]

Hence, the possible oxidation product is option C

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