question_answer

Glucose reacts with phenyl-hydrazine to produce osazone. Number of molecules of phenyl-hydrazine take part is:

A)  1                            

B)         2                            

C)         3                            

D)         4

Correct Answer: C

Solution :

Glucose and phenyl hydrazine react as follows: Thus, three moles of hydrazine react with one mole of glucose.