Which of the following compound on boiling with hydrochloric acid form ketones ?
  • A$\begin{array}{*{20}{c}}
      {\,C{H_3}} \\ 
      {\,|\,\,\,\,\,\,} \\ 
      {C{H_3} - CH - N{O_2}} 
    \end{array}$
  • B$CH_3-CH_2-NO_2$
  • C$CH_3 -NO_2$
  • D$\begin{array}{*{20}{c}}
      {\,\,\,\,\,\,C{H_3}} \\ 
      | \\ 
      {C{H_3} - C - N{O_2}} \\ 
      | \\ 
      {\,\,\,\,\,C{H_3}} 
    \end{array}$
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