MCQ
Which chlorine atom is more electronegative in the following
  • A
    $C{H_3} - Cl$
  • B
    $C{H_3} - C{H_2} - Cl$
  • C
    $\begin{array}{*{20}{c}}
      {\begin{array}{*{20}{c}}
      {\,\,\,\,\,C{H_3}} \\ 
      | 
    \end{array}} \\ 
      {H - C - Cl} \\ 
      | \\ 
      {\,\,\,\,\,\,C{H_3}} 
    \end{array}$
  • $\begin{array}{*{20}{c}}
      {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\begin{array}{*{20}{c}}
      {\,\,\,\,\,\,\,\,\,\,\,C{H_3}} \\ 
      | 
    \end{array}} \\ 
      {C{H_3} - C{H_3} - C - Cl} \\ 
      {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ 
      {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}} 
    \end{array}$

Answer

Correct option: D.
$\begin{array}{*{20}{c}}
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\begin{array}{*{20}{c}}
  {\,\,\,\,\,\,\,\,\,\,\,C{H_3}} \\ 
  | 
\end{array}} \\ 
  {C{H_3} - C{H_3} - C - Cl} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}} 
\end{array}$
d
(d) Due to  $+I$  effect of  $3$ alkyl group in option $(d),$  the chlorine atom occupy the maximum charge in it so it is more electronegative.

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