Glucose reacts with $X$ number of molecules of phenyl hydrazine to yield osazone. The value of $X$ is,

• Correct answer
  A

  three
• B

  two
• C

  one
• D

  four

Solution

Hence, three molecules of phenyl hydrazine $\left(\mathrm{C}_6 \mathrm{H}_5 \mathrm{NHNH}_2\right)$ is used to yield osazone.

Hence, the correct answer is option: 'A'.