Questions
H2O2 turns blackened lead paintings to white colour. In this reaction it oxidises PbS to PbSO4. The number of moles of H2O2 needed to oxidise one mole of PbS is.
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Correct option is D
[H2O2 → H2O + [O]]x4Therefore, the number of moles of H2O2 required is 4 for the conversion of mole of Pbs to PbSO4Similar Questions
Statement-I: H2O2 is used to restore the white color of old oil paintings.
Statement-II: H2O2 oxidizes PbS of old oil paintings to PbSO4.
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