Question

State wheat we the following conversions are oxidation or reduction reactions:

a) PbO2+SO2—>PbSO4

Answer 1

Answer:

1)pbo is redused and so2 is oxidised

2)cu is oxidised

3)k is reduced

4)cl is reduced

Explanation:

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Answer 2

Explanation:

When there is increase in oxidation state, the compound is said to undergo oxidation.

When there is decrease in oxidation state, the compound undergoes reduction.

PbO²-reduction

SO²-oxidation