JEE Main Chemistry question

Glucose when treated with in the presence of dry HCl gas gives α- and β-methylglucosides because it contains

(A)An aldehydic group
(B)A group
(C)A ring structureCorrect
(D)Five groups

Answer: (C)

Solution

Formation of two distinct anomeric methyl glucosides (α and β) shows that the reaction occurs at the cyclic hemiacetal (anomeric) carbon of glucose, converting it into a mixed acetal; this is only possible because glucose exists predominantly as a cyclic (ring) structure with a

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Question ID VK-150771