JEE Main Chemistry question

[J & K CET 2007] Which one of the following is an example of a non-reducing sugar?

(A)SucroseCorrect
(B)Lactose
(C)Maltose
(D)Cellobiose

Answer: (A)

Solution

Sucrose has both of its component anomeric carbons tied up in the glycosidic bond between glucose and fructose, leaving no free reducing end, so it cannot reduce Tollens' or

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Question ID VK-150621