Question

Which are reducing sugar?
(1) Glucose
(2) Fructose
(3) Mannose
(4) Sucrose

• A. 1, 2 and 3 are correct
• B. 1 and 2 are correct
• C. 2 and 4 are correct
• D. 1 and 3 are correct

Answer 1

Answer: (A)

Sugars which reduce Tollen's reagent and Fehling solution are called reducing sugars while those which do not reduce these are called non-reducing sugars, eg, glucose, fructose, mannose are reducing sugars while sucrose is a non-reducing sugar.