Chemistry, asked by Rudranil420, 9 months ago

old oil paintings become black in today's atmosphere. why does this happen?​

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Answered by akarshi59
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Answer:

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Answered by akarshitmodanwal
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Answer:

Hydrogen. ... When an oil painting is constantly exposed to the atmosphere, the traces of hydrogen sulphide gas present in the atmosphere slowly blackens the painting by converting lead oxide (white) to lead sulphide (black).

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