JEE Main Chemistry question

Osazone formation involves only 2 carbon atoms of glucose because of:

(A)Chelation
(B)OxidationCorrect
(C)Reduction
(D)Hydrolysis

Answer: (B)

Solution

Osazone formation proceeds through oxidation of the C2 group (adjacent to the carbonyl) to a carbonyl by the second equivalent of phenylhydrazine (which is itself reduced to aniline and ammonia), so that only C1 and C2 end up bearing

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Question ID VK-151075