Blackened oil painting can be restored into original form by the action of

Options

A. chlorine
B. `BaO_(2)`
C. `H_(2)O_(2)`
D. `H_(2)O`

Answer

C

Explanation

In refreshing old oil paintings which becomes black due to the information of black PbS, `H_(2)O_(2)` converts it into white `PbSO_(4)`.
`underset("white")(PbO)+H_(2)S rarr underset("black")(PbS)+H_(2)O`
`PbS+2H_(2)O_(2) rarr underset("white")(PbSO_(4))+(4H_(2)O)`