MCQ
Arrange decreasing order of reactivity of these compounds for nucleophilic substitution reaction

$(I)$ $\begin{array}{*{20}{c}}
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||} \\ 
  {C{H_3} - C{H_2} - O - S - C{F_3}} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O} 
\end{array}$

$(II)$ $CH_3-CH_2-O-TsCl$

$(III)$ $\begin{array}{*{20}{c}}
  {C{H_3} - CH - C{H_3}} \\ 
  {|\,\,\,\,} \\ 
  {OH\,} 
\end{array}$

$(IV)$ $\begin{array}{*{20}{c}}
  {C{H_3} - CH - OH} \\ 
  | \\ 
  {{C_6}{H_5}} 
\end{array}$

  • A
    $III, IV, I, II$
  • $III, IV, II, I$
  • C
    $I, II, III, IV$
  • D
    $I, II, IV, III$

Answer

Correct option: B.
$III, IV, II, I$
b
Rate towards $ESR$ $\propto $ $EDG$ to benzene $ \propto $ $1$ $/$ $EWG$ to benzene

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