1.

Oxidation of SO2 gives us what?

A. H<sub>2</sub>SO<sub>4</sub>
B. H<sub>2</sub>S<sub>4</sub>O<sub>7</sub>
C. SO<sub>3</sub>
D. HSO<sub>3</sub>
Answer» D. HSO<sub>3</sub>


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