Question

PbO2+SO2 = PbSO4. Is it oxidation or reduction reaction

Answer 1

PbO2+SO2 = PbSO4 is an oxidation-reduction reaction.

PbIV + 2 e- ==>PbII - Reduction

SIV - 2 e- ==> SVI - Oxidation

Answer 2

$PbO_2+SO_2\rightarrow PbSO_4$ is an oxidation-reduction or redox reaction.

Explanation:

• The type of reaction in which the substance involved in the reaction gains oxygen it is called an oxidation reaction.
• On the other hand, the type of reaction in which the substance involved in the reaction loses oxygen it is called a reduction reaction.
• The type of reaction in which out of two substances involved in the reaction, one loses the oxygen whereas the other gains the oxygen it is called redox or oxidation-reduction reaction.
• When the given reaction is examined, it shows that for the formation of the product, PbO has lost the oxygen (Oxidation) whereas the $SO_2$ has gained the oxygen (Reduction).
• Thus it is inferred that the given reaction is a redox reaction.

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