COMEDK · Chemistry · 30. Biomolecules
Which of the following hexoses will form the same osazone when treated with excess phenyl hydrazine?
- A D-glucose, D-fructose and D-galactose
- B D-fructose, D-mannose and D-galactose
- C D-glucose, D-mannose and D-galactose
- D D-glucose, D-fructose and D-mannose
Answer & Solution
Correct Answer
(D) D-glucose, D-fructose and D-mannose
Step-by-step Solution
Detailed explanation
Osazone formation involves the reaction of the first two carbon atoms of a sugar with phenylhydrazine. Sugars that differ only in the configuration at the first and second carbon atoms (epimers at C-2) form the same osazone. D-glucose, D-fructose, and D-mannose share the same…
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