Question

(d) 4
(vii) Name the reagent which on reaction with glucose confirms
the presence of five hydroxyl groups in glucose
fa) Hydroxyl amine
(b) Bromine water
(c) Dilute nitric acid
(d) Acetic anhydride​

Answer 1

Ans: d)acetic anhydrides

Explanation:

Answer 2

Acetic anhydride​ is the name of reagent which on reaction with glucose confirms  the presence of five hydroxyl groups in glucose.

• Option (d) is correct.
• In order to detect the presence of -OH bond, the acetylation of glucose with acetic anhydride process is conducted.
• When reacted with acetic anhydride, glucose gives a penta ester revealing the presence of 5 hydroxyl group.