Which one given below is a non-reducing sugar?

Which one given below is a non-reducing sugar?
A Lactose
B Glucose
C Sucrose
D Maltose

Explanation

Sucrose has no free hemiacetal/hemiketal group.

Detailed Solution

When two monosaccharide units are linked through their respective carbonyl groups (reducing centres), the disaccharide is non-reducing, e.g. sucrose.

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