MHT CET 2026 Chemistry question

Identify glycosidic linkage in lactose.

(A)
(B)Correct
(C)
(D)

Answer: (B)

Solution

Lactose (milk sugar) is a reducing disaccharide made of -D-galactose and -D-glucose. The glycosidic bond joins C-1 of -D-galactose to C-4 of glucose, so the linkage is -1,4 (more precisely -1,4-galactosidic). In comparison,

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Question ID VK-100268