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H 2 O 2 turns...

Question

$H_{2} O_{2}$ turns blackened lead paintings to white colour. In this reaction it oxidizes PbS to $P b S O_{4}$ . The number of moles of $H_{2} O_{2}$ needed to oxidize one mole of PbS is

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0.5

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Solution

The correct option is D 4
$P b S + 4 H_{2} O_{2} \to P b S O_{4} + 4 H_{2} O$

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