MCQ
Which reaction is incorrectly written
  • A
    $C{H_3} - CH = C{H_2}$ $\xrightarrow[{{H_2}{O_2}|\mathop O\limits^\Theta  H}]{{{{{\text{(B}}{{\text{H}}_3}{\text{)}}}_2}}}$ $\begin{array}{*{20}{c}}
    {C{H_3} - C{H_2} - C{H_2}}\\
    {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|}\\
    {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,OH}
    \end{array}$
  • B
    $\begin{array}{*{20}{c}}
    {\,\,\,\,\,\,\,\,O}\\
    {\,\,\,\,\,\,\,\,||}\\
    {C{H_3} - C - H}
    \end{array}$ $\xrightarrow[{{H_2}O}]{{{\text{C}}{{\text{H}}_3}{\text{MgBr}}}}$ $\begin{array}{*{20}{c}}
    {OH}\\
    |\\
    {C{H_3} - CH - C{H_3}}
    \end{array}$
  • C
    $\begin{array}{*{20}{c}}
    {C{H_3} - C = C{H_2}}\\
    |\\
    {\,\,\,\,\,C{H_3}}
    \end{array}$ $\xrightarrow{{{\text{dil}}{\text{. }}{{\text{H}}_2}{\text{S}}{{\text{O}}_4}}}$ $\begin{array}{*{20}{c}}
    {\,\,\,\,OH}\\
    |\\
    {C{H_3} - C - C{H_3}}\\
    |\\
    {\,\,\,\,\,\,\,C{H_3}}
    \end{array}$
  • $C{H_3} - C \equiv N$ $\xrightarrow[\Delta ]{{{H_2}O/{H^ \oplus }}}$ $\begin{array}{*{20}{c}}
      O \\ 
      {||} \\ 
      {C{H_3} - C - N{H_2}} 
    \end{array}$

Answer

Correct option: D.
$C{H_3} - C \equiv N$ $\xrightarrow[\Delta ]{{{H_2}O/{H^ \oplus }}}$ $\begin{array}{*{20}{c}}
  O \\ 
  {||} \\ 
  {C{H_3} - C - N{H_2}} 
\end{array}$
d

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