Chemistry, asked by Anonymous, 1 month ago

proof the precense of three groups in glucose​

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Answered by parasharpraveen244
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Answer:

When glucose reacts with hydroxylamine, oxime is formed and cyanohydrins are formed on the addition of hydrogen cyanide to it. This reaction can confirm the presence of carbonyl group in glucose. And also on the reaction of glucose with a mild oxidising agent like bromine water, the glucose gets oxidised to carboxylic acid containing six carbon atoms. This indicates that the carbonyl group is present (as an aldehyde group).

To prove the presence of −OH groups:

The presence of −OH group is confirmed after the acetylation of glucose with acetic anhydride, which gives glucose pentaacetate.

Explanation:

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