AIIMS2018Chemistry-Carbohydrates

AIIMS 2018 Chemistry Aldoses and Ketoses MCQ Question

Type: MCQ-conceptual-Hard-Class 12

Two aldopentoses A and B give the same osazone derivative. A is oxidised to an optically active aldoric acid by dilute nitric acid. Ruff degradation of B gave a tetrose which was similarly oxidised to an optically active aldaric acid. Assign the structure of A and B from the following list.

Question diagram
A

A=I, B=IV

B

A=IV, B=I

C

A=III, B=II

D

A=II, B=III

Correct Answer

Option

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