Bleaching of flowers by `Cl_(2)` is permanent while bleaching by `SO_(2)` is temporary, why ?

Bleaching of flowers by `Cl_(2)` is permanent while bleaching by `SO_(

1.	Bleaching of flowers by `Cl_(2)` is permanent while bleaching by `SO_(2)` is temporary, why ?
Answer» Bleaching by `Cl_(2)` id due to oxidation. The colour of bleached flower can be restored . The bleaching by `SO_(2)` is due to reduction. The colour of bleached article can be restored on exposure to air or oxygen (oxidation).

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Bleaching of flowers by `Cl_(2)` is permanent while bleaching by `SO_(2)` is temporary, why ?

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