Question

114. Fehling's reagent is used for testing:
(1) Reducing sugars
(3) Stereoisomerism
(2) Non-reducing sugars
(4) Asymmetry of carbon atom​

Answer 1

Answer:

answer is 4 and 3

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Answer 2

Answer:

Fehling's solution is a chemical reagent used to differentiate between water-soluble carbohydrate and ketone functional groups, and as a test for reducing sugars and non-reducing sugars, supplementary to the Tollens' reagent test.

Explanation:

Fehling's test can be used as a generic test for monosaccharides and other reducing sugars (e.g., maltose). It will give a positive result for aldose monosaccharides (due to the oxidisable aldehyde group) but also for ketose monosaccharides, as they are converted to aldoses by the base in the reagent, and then give a positive result.