Why glucose and fructose produce same products with phenylhydrazine?
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Three common sugars—glucose, galactose, and fructose, share the same molecular formula: C6H12O6. Because of their six carbon atoms, each is a hexose. Although all three share the same molecular formula, the arrangement of atoms differs in each case
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.
Three common sugars—glucose, galactose, and fructose, share the same molecular formula: C6H12O6. Because of their six carbon atoms, each is a hexose. Although all three share the same molecular formula, the arrangement of atoms differs in each case
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.
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