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Potassium metabisulphite is a (an)...

Potassium metabisulphite is a (an)

A

preservative

B

antioxidant

C

artificial sweetener

D

Both (a) and (b)

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The correct Answer is:
D
Potassium metabisulphite , `K_(2)S_(2)O_(5)`, is a white crystalline solid with pungent odour of sulphur . It is used as an antimicrobial preservative , antioxidant and bleaching agent in food .
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