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-glucose, D-fructose and D-mannose
- C D-glucose, D-mannose and D-galactose
- D D-fructose, D-mannose and D-galactose
Answer & Solution
Correct Answer
(B) D-glucose, D-fructose and D-mannose
Step-by-step Solution
Detailed explanation
D-glucose, D-fructose and D-mannose form the same osazone treated with excess phenyl hydrazine because they differ only Ist and 2 nd carbon atoms which are transformed to the same form. They form same osazone
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