Question

Choose the correct answer from the alternatives given.
Fehlings reagent is used for testing:

• A. Reducing sugars
• B. Non-reducing sugars
• C. Stereoisomerism
• D. Asymmetry of carbon atoms

Answer 1

The correct option is A Reducing sugars

Fehling's reagent is a chemical reagent used to differentiate between water-soluble carbohydrates and ketone functional groups. This reagent is used for testing the presence of reducing sugars. Reducing sugars give a positive result to this test due to the presence of oxidisable aldehyde group.

Non-reducing sugars like sucrose can be tested by Tollen's reagent.

So, the correct option is 'Reducing sugars'.