In sucrose, two mono saccharide units are held together by a glycosidic linkage between
A
C1 of α-glucose and C6 of β−fructose
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B
C1 of α-glucose and C2 of β−fructose
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C
C1 of α-glucose and C6 of β−glucose
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D
C1 of α-glucose and C2 of β−fructose
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Solution
The correct option is B
C1 of α-glucose and C2 of β−fructose
Sucrose is a disaccharide which contains α−1,β−2−glycosidic (head-to-head) linkage. This linkage is formed by OH group on the anomeric carbon of α−D−glucose and OH group on the anomeric carbon of β−D−fructose.