The reaction of glucose with which of the following proves the presence of an aldehydic group?(a) Potassium iodide(b) Hydroxylamine(c) Bromine water(d) Acetic anhydrideI had been asked this question by my school principal while I was bunking the class.I want to ask this question from Biomolecules Carbohydrates in portion Biomolecules of Chemistry – Class 12

The reaction of glucose with which of the following proves the presenc

1.	The reaction of glucose with which of the following proves the presence of an aldehydic group?(a) Potassium iodide(b) Hydroxylamine(c) Bromine water(d) Acetic anhydrideI had been asked this question by my school principal while I was bunking the class.I want to ask this question from Biomolecules Carbohydrates in portion Biomolecules of Chemistry – Class 12
Answer» Correct option is (C) Bromine water The best I can explain: On treatment with BR2 water, glucose GETS oxidised to GLUCONIC acid (which is a six-carbon carboxylic acid). This indicates that the carbonyl group is present as an aldehyde group.

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