Carbohydrates

Easychemistry

Which of the following is a non-reducing sugar?

Select the correct option:

Glucose

Fructose

Sucrose

Maltose

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About This Question

Subject: chemistry
Chapter: biomolecules
Topic: carbohydrates
Difficulty: Easy
Year: 2025

Solution

Correct Answer:

Sucrose

Sucrose is a non-reducing sugar because it has no free anomeric (aldehyde or ketone) carbon — both anomeric carbons of glucose and fructose are involved in the glycosidic bond. Glucose, fructose, and maltose all possess free anomeric carbons and hence reduce Fehling's or Benedict's reagent.

This easy difficulty chemistry question is from the chapter biomolecules, covering the topic of carbohydrates. It appeared in the 2025 exam.

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Carbohydrates

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