MHT CET 2025 Chemistry question

Which carbon atom of glucopyranose numbered from C-1 to C-6 is anomeric?

(A)C-5
(B)C-6
(C)C-2
(D)C-1Correct

Answer: (D)

Solution

In the cyclic (pyranose) form of glucose, the C-1 aldehyde carbon becomes a hemiacetal carbon after reaction with the C-5 hydroxyl group, creating a new stereocentre at C-1 (giving

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Question ID VK-101951