Which of the following hexoses will form the same osazone when treated – InterviewSolution

1.	Which of the following hexoses will form the same osazone when treated with excess phenylhydrazine ?
Answer» D-glucose , D-fructose and D-galactose D-glucose ,D-fructose and D-mannose D-glucose, D-mannose and D-galactose D-fructose , D-mannose and D-galactose SOLUTION :D-glucose , D-fructose and D-mannose GIVE the same OSAZONE because they DIFFER in CONFIGURATION only at `C_1` and `C_2` but have the same configuration at `C_3,C_4 and C_5`.

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