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Which of the following is a non-reducing sugar?

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in Chemistry – Class 12 by (188k points)
Which of the following is a non-reducing sugar?

(a) Galactose

(b) Glucose

(c) Fructose

(d) Sucrose

I got this question by my college director while I was bunking the class.

My question is taken from Biomolecules Carbohydrates topic in chapter Biomolecules of Chemistry – Class 12

1 Answer

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Best answer
Correct answer is (d) Sucrose

Easiest explanation: Sucrose is a non-reducing disaccharide which cannot convert to an open chain with a free aldehyde group and hence cannot reduce Fehling’s solution and Tollen’s reagent.

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