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H2O2 restores the colour of old lead pai...

`H_2O_2` restores the colour of old lead paintings , blackened by the action of `H_2S` gas, by :

A

Converting `PbO_2` TO Pb

B

By oxidising PbS to `PbSO_4`

C

Converting `PbCO_3` to Pb

D

Oxidising `Pbso_3` to `PbSO_4`

Text Solution

Verified by Experts

The correct Answer is:
B
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