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The red precipitate formed when glucose is heated with “Benedict’s reagent” is ___________

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The red precipitate formed when glucose is heated with “Benedict’s reagent” is ___________

(a) Cupric hydroxide

(b) Cuprous hydroxide

(c) Cupric oxide

(d) Cuprous oxide

This question was addressed to me in homework.

My enquiry is from Monosaccharides and Disaccharides in portion Enzymes, Carbohydrates and Gycobiology of Biochemistry

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Correct option is (d) Cuprous oxide

To explain: When reducing sugars are heated in the presence of an alkali and reduce the Cupric compounds present in the Benedict’s reagent to cuprous compounds which get precipitated as insoluble red Cu2O.

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