Search any question & find its solution
Question:
Answered & Verified by Expert
Blackened oil painting can be restored into original form by the action of :
Options:
Solution:
1208 Upvotes
Verified Answer
The correct answer is:
$\mathrm{H}_2 \mathrm{O}_2$
Blackening of oil painting is due to $\mathrm{PbS}$ which is oxidised by $\mathrm{H}_2 \mathrm{O}_2$ to form white $\mathrm{PbSO}_4$
$\underset{\text { (Black) }}{\mathrm{PbS}+\mathrm{H}_2 \mathrm{O}_2} \rightarrow \underset{\text { (white) }}{\mathrm{PbSO}_4}+\mathrm{H}_2 \mathrm{O}$
$\underset{\text { (Black) }}{\mathrm{PbS}+\mathrm{H}_2 \mathrm{O}_2} \rightarrow \underset{\text { (white) }}{\mathrm{PbSO}_4}+\mathrm{H}_2 \mathrm{O}$
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.