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प्रश्न
In disaccharides, if the reducing groups of monosaccharides i.e. aldehydic or ketonic groups are bonded, these are non-reducing sugars. Which of the following disaccharide is a non-reducing sugar?
विकल्प
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उत्तर
Explanation:
This structure represents sucrose in which α-D glucose and β-D-fructose is attached to each other by C1 – C2 glycosidic linkage.
Since, reducing groups of glucose and fructose are involved in glycosidic bond formation, this is considered as non-reducing sugar.
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संबंधित प्रश्न
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HNO3
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When sucrose is hydrolysed the optical rotation values are measured using a polarimeter and are given in the following table:
| S. No. | Time (hours) | Specific Rotation |
| 1 | 0 | + 66.5° |
| 2 | ∞ | - 39.9° |
- Account for the two specific rotation values.
- What is the specific name given to sucrose based on the above observation?
- One of the products formed during the hydrolysis of sucrose is a glucose, that reacts with hydroxylamine to give compound A. Identify compound A.
