Question:
Among the following which one is a non-reducing sugar?
Among the following which one is a non-reducing sugar?
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Sucrose is non-reducing because both anomeric carbons are involved in glycosidic bond formation.
Updated On: Apr 29, 2026
- Lactose
- Glucose
- Sucrose
- Maltose
- Fructose
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The Correct Option is C
Solution and Explanation
Concept:
A reducing sugar has a free aldehyde or ketone group, or a free anomeric carbon. Sucrose has no free anomeric carbon.
Step 1: Check sucrose structure.
Sucrose is formed by glucose and fructose joined through their anomeric carbons.
Step 2: Effect on reducing property.
Since both anomeric carbons are involved in glycosidic linkage, sucrose cannot open into aldehyde or ketone form.
Step 3: Conclusion.
Therefore, sucrose is a non-reducing sugar.
Step 1: Check sucrose structure.
Sucrose is formed by glucose and fructose joined through their anomeric carbons.
Step 2: Effect on reducing property.
Since both anomeric carbons are involved in glycosidic linkage, sucrose cannot open into aldehyde or ketone form.
Step 3: Conclusion.
Therefore, sucrose is a non-reducing sugar.
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