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Question

In sucrose, two mono saccharide units are held together by a glycosidic linkage between


A

C1 of α-glucose and C6 of βfructose

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B

C1 of α-glucose and C2 of βfructose

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C

C1 of α-glucose and C6 of βglucose

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D

C1 of α-glucose and C2 of βfructose

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Solution

The correct option is B

C1 of α-glucose and C2 of βfructose


Sucrose is a disaccharide which contains α1,β2glycosidic (head-to-head) linkage. This linkage is formed by OH group on the anomeric carbon of αDglucose and OH group on the anomeric carbon of βDfructose.


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