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SO(2) and Cl(2) both are used as bleachi...

`SO_(2)` and `Cl_(2)` both are used as bleaching agent. What factors cause bleaching ?

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`SO_(2)+2H_(2)O to H_(2)SO_(4)+2H`
`Cl_(2)+H_(2)O to 2HCl+O`
Bleaching action of `SO_(2)` is due to `H` (that causes reduction) and that of `Cl_(2)` is due to `O` (that cause oxidation)
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