MCQ
Which of the following is optically active
  • A

  • $\begin{array}{*{20}{c}}
      {C{H_3} - CH - C{H_2}} \\ 
      {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,} \\ 
      {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Cl\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Cl\,\,} 
    \end{array}$
  • C
    $\begin{array}{*{20}{c}}
      {\begin{array}{*{20}{c}}
      {Cl} \\ 
      | 
    \end{array}} \\ 
      {C{H_3} - C - C{H_3}} \\ 
      | \\ 
      {Cl} 
    \end{array}$
  • D
    $\begin{array}{*{20}{c}}
      {{H_2}C - C{H_2} - C{H_2}} \\ 
      {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,} \\ 
      {\,\,Cl\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Cl} 
    \end{array}$

Answer

Correct option: B.
$\begin{array}{*{20}{c}}
  {C{H_3} - CH - C{H_2}} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Cl\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Cl\,\,} 
\end{array}$
b

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