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How H2O2 acts as a bleaching agent ?...

How `H_2O_2` acts as a bleaching agent ?

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Hydrogen peroxide acts as a bleaching agent as it oxidises the colouring matter to the colourless matter.
`H_2O_2 to H_2O + [O]`
Colouring matter + [O] `to` Colourless matter
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