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The reaction of glucose with NH2OH gives _______(a) n-hexane(b) glucose oxime(c) glucose cyanohydrin(d) a gluconic acidI had been asked this question in class test.My question comes from Biomolecules Carbohydrates topic in division Biomolecules of Chemistry – Class 12

Answer» CORRECT choice is (b) glucose oxime

To explain I WOULD say: Glucose reacts with hydroxylamine to form an oxime of glucose, where a carbon-nitrogen DOUBLE bond is formed (C=N-OH) in place of the CHO GROUP. This reaction establishes the presence of a carbonyl group in glucose.


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