Question

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

• A. $PbS$
• B. $PbS{o}_4$
• C. $Pb(OH{)}_2$
• D. None of these

Answer 1

The correct option is A $PbS$

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