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When moist coloured flowers are added in...

When moist coloured flowers are added into a gas of `SO_2` the flowers are decolourised because

A

`SO_2` absorbs colouring matter

B

`SO_2` oxidises vegetable colouring matter

C

`SO_2` reduces vegetable colouring matter

D

`SO_2` gives colourless product.

Text Solution

Verified by Experts

The correct Answer is:
C
`SO_2` bleaches the colour of flowers by reduction.
`SO_2+2H_2O to H_2SO_4+2[H]`
Coloured matter + [H]`to` Colourless matter
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