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What are reducing and non-reducing sugars?

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What are reducing and non-reducing sugars?

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1. Reducing sugars: Those carbohydrates which contain free aldehyde or ketonic group and reduces Fehling’s solution and Tollen’s reagent are called reducing sugars. All monosaccharides whether aldose or ketone are reducing sugars.

2. Non-reducing sugars: Carbohydrates that do not reduce Tollen’s reagent and Fehling’s solution are called non – reducing sugars. Example Sucrose. They do not have a free aldehyde group.

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Chapter 14: Biomolecules - Evaluation [Page 271]

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Samacheer Kalvi Chemistry - Volume 1 and 2 [English] Class 12 TN Board
Chapter 14 Biomolecules
Evaluation | Q 9. | Page 271

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