A) \[\text{C}{{\text{l}}_{2}}\]
B) \[Ba{{O}_{2}}\]
C) \[{{H}_{2}}{{O}_{2}}\]
D) \[Mn{{O}_{2}}\]
Correct Answer: C
Solution :
The lead of oil paintings gets converted into lead sulphide by atmospheric \[{{\text{H}}_{\text{2}}}\text{S}\]leading to blackening of paintings. Hydrogen peroxide \[({{H}_{2}}{{O}_{2}})\] oxidises the black lead sulphide into white lead sulphate, thus restores the colour of oil paintings.
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