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Bleaching action of SO2 is due to...

Bleaching action of `SO_2` is due to

A

Reduction

B

Oxidation

C

Hydrolysis

D

Its acidic nature

Text Solution

Verified by Experts

The correct Answer is:
A
`2H_(2)O +SO_(2) to H_(2)SO_(4) +2[H]` (nascent hydrogen)
Coloured flower ` +2[H] to ` colourless flower
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