Art, asked by mayrasanchez4528, 1 year ago

Oil paintings become black due to the formation of

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Answered by kanishk135

the white pigment in old painting turns black due to the formation of PbS. this white pigment is restore by using hydrogen peroxide. the reaction is as follows.....

H2O2(aq)+ PbS(s) > PbSO4 + H2O

Answered by Ravindragulrandhe

It is because of lead sulphide

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