Q. Which is a reducing sugar?
A) Galactose
B) Gluconic acid
C) $\beta$- methyl galactoside
D) Sucrose
Explanation
Glucose, fructose, mannose and galactose are hexose monosaccharides. The monosaccharides have free aldehyde or ketone group, which can reduce ${{Cu}^{2}}^{+}$to Cu. Therefore, these are called reducing sugars.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.