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how is hydrogen peroxide used to restore the original colour of old lead paintings?give an chemical equation to show that it acts as both oxidising and reducing agents????
Hydrogen peroxide acts as both an oxidizing and reducing agent,
because the oxygen freed in decomposition readily combines with other
substances. Its oxidizing properties are used in bleaching thing such
as hair, feathers, ivory and delicate fabrics e.g. wool, silk, nylon
etc. that would be destroyed by other agents. In a different form, it
can be used as an antiseptic or a throatwash. It restores the original
colour in paintings, by oxidizing the black lead sulfide to white lead
sulphate. It can also be used as a source of oxygen in the fuel
mixture for many rockets and torpedoes. So on the whole, Hydrogen
peroxide is a very useful substance.


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