1.

How many molecules of phenyl hydrazine are used up per molecule of glucose?

Answer»

1
2
3
6

Solution :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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