An organic compound $X$ is oxidised by using acidified $\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$. The product obtained reacts with phenyl hydrazine but does not answer silver mirror test. The possible structure of $X$ is

• A

  $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}$
• B

  
  
  
• Correct answer
  C

  $\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CHOH}$
• D

  $\mathrm{CH}_{3} \mathrm{CHO}$

Solution

Ketone (ie, acetone) reacts with phenyl hydrazine but does not give silver mirror test.

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