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The two functional groups characteristic...

The two functional groups characteristic of sugars are

A

Carbonyl and phosphate

B

Carbonyl and methyl

C

Hydroxyl and methyl

D

Carbonyl and hydroxyl

Text Solution

Verified by Experts

The correct Answer is:
D
Sugars are chemically carbohydrates . They are polyhydroxy aldoses , ketoses and their condensatioin products . Aldoses bear a terminal aldehyde or -CHO group while ketoses have an internal ketone or -CO group.
Thus they posses two functional groups , i.e., carbonyl and hydroxyl .
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