In which reaction racemic mixture is not obtained ? - Vidyadip

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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