Question

Why do glucose and fructose have the same osazone? And why sucrose does not form osazone?

Answer 1

Because.......Upon hydrolysis, the products glucose and fructose form needle shaped crystals. Three molecules of phenylhydrazine are required, the reaction takes place at first two carbon atoms. The difference in these sugars present on the first and second carbon atoms are masked when osazone crystals are formed.