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How many molecules of phenyl hydrazine are used up per molecule of glucose?A. 1B. 2C. 3D. 6

Answer» Correct Answer - C
Three molecules of phenyl hydrazine are used up by molecules of glucose for the formation of glycosazone as explaied below
`{:(" "CHO),(" |"),(" "CHOH),(" |"),(" "(CHOH)_(3)),(" |"),(underset(" Glucose ")(" "CH_(2)OH)):} overset(C_(6)H_(5)NHNH_(2))underset(-H_(2)O)to {:(" "CH=N NHC_(6)H_(5)),(" |"),(" "CHOH),(" |"),(" "(CHOH)_(3)),(" |"),(underset("Glucose phenyl hydrazine")(CH_(2)OH)):} overset(2C_(6)H_(5)NHNH_(2))underset(-C_(6)H_(5)NH_(2),-NH_(3),-H_(2)O)to {:(" "CH=N NHC_(6)H_(5)),(" |"),(" "C=N NHC_(6)H_(5)),(" |"),(" "(CHOH)_(3)),(" |"),(underset(" Glucosazone")(" "CH_(2)OH)):}`


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