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Oxides of Nitrogen

Oil painting ...

Question

Oil painting turn blackish after sometime. What is the salt formed? Assume oil paint contains $P b^{2 +}$ :

A

P b S

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B

P b S o_{4}

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C

P b (O H)_{2}

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D

None of these

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Solution

The correct option is A $P b S$
Oil painting turn blackish after sometime due to formation of PbS.
$P b^{2 +} + S^{2 -}$ $\to$ $P b S$

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