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Carbohydrates react with phenyl hydrazine to form crystalline der called osazones.
Expert Answer
Answer
1. It is due to that the configuration of C3 – C6 atoms of both glucose and fructose is same and they differ only at C1 & C2 atoms. And both have carbonyl groups (aldehyde &ketone) in their structure and both will reacts in same manner to produce same osazone.
