JEE Main Chemistry question

[UP SEE 2009] The monosaccharides having an anomeric carbon atom are

(A)Geometrical isomers
(B)α- and β-optical isomersCorrect
(C)Having symmetrical carbon atoms
(D)None of the above

Answer: (B)

Solution

The anomeric carbon is the new stereocentre created when a monosaccharide cyclises into a hemiacetal; the two possible spatial arrangements at this carbon give the α- and β-anomers, which are a pair of cyclic

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Question ID VK-150579