Question

Which of the following is oxidised by $SO_{2}$.

• A. $Mg$
• B. $K_{2}Cr_{2}O_{7}$
• C. $KMnO_{4}$
• D. All of these

Answer 1

Answer: (A)

$Mg$

Answer 2

$SO_{2} + 2Mg \rightarrow 2MgO + S$