MCQ
In which reaction racemic mixture is not obtained ?
  • A
    $CH_3-CH=CH-CH_3 + HCl \longrightarrow $
  • B
    $\begin{array}{*{20}{c}}
    {Ph - CH - Cl + KCN}\\
    {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}\\
    {C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
    \end{array}\,\,$ $\longrightarrow $
  • C
    $\begin{array}{*{20}{c}}
    {C{H_3} - C - Ph + HCN}\\
    {\,\,\,\,||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}\\
    {\,\,\,\,O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
    \end{array}\,\,$  $\longrightarrow $
  • $\begin{array}{*{20}{c}}
    {C{H_3} - C - Me + HCN}\\
    {\,\,\,\,||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}\\
    {\,\,\,\,O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
    \end{array}\,\,$ $\longrightarrow $

Answer

Correct option: D.
$\begin{array}{*{20}{c}}
{C{H_3} - C - Me + HCN}\\
{\,\,\,\,||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}\\
{\,\,\,\,O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}\,\,$ $\longrightarrow $
d

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