Which reagent among the following is used to confirm presence of aldehydic carbonyl group in glucose?

Which reagent among the following is used to confirm presence of aldehydic carbonyl group in glucose?
  1. Acetic anhydride
  2. Dilute Nitric acid
  3. Bromine water
  4. Hydroxylamine

Solution

When glucose is treated with bromine water, it undergoes oxidation, forming gluconic acid. (In this aldehydic group is oxidized to carboxylic acid), which shows that the carbonyl group in glucose is aldehyde group.

Asked in: MHT CET 2020 (19 Oct Shift 2)

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