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Hydrogen Peroxide

Blackened oil...

Question

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

{C l}_{2}

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B a O_{2}

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H_{2} O_{2}

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M n O_{2}

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Solution

The correct option is C $H_{2} O_{2}$
Blackened oil painting is due to formation of PbS which is oxidized $H_{2} O_{2}$ to form white $P b S O_{4}$ , thus restoring the painting into its original form.

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M n O_{2} + 2 K C l O_{3} ⟶ K_{2} M n O_{4} + C l_{2} + 2 O_{2}

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