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8.4. Organic chemistry reaction mechanism — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry8.4. Organic chemistry reaction mechanism1 Mark
MCQ
Least reactive towards nucleophilic addition is
  • A
    $HCHO$
  • ✓
    $\begin{array}{*{20}{c}}
      {CC{l_3} - C - H} \\ 
      {\,\,\,\,\,\,||} \\ 
      {\,\,\,\,\,\,O} 
    \end{array}$
  • C
    $CH_3-CHO$
  • D
    $\begin{array}{*{20}{c}}
      {C{H_3} - C - {C_2}{H_5}} \\ 
      {\,\,\,\,\,\,||\,\,\,\,\,\,\,\,} \\ 
      {\,\,\,\,\,\,O\,\,\,\,\,\,\,} 
    \end{array}$
✓

Answer

Correct option: B.
$\begin{array}{*{20}{c}}
  {CC{l_3} - C - H} \\ 
  {\,\,\,\,\,\,||} \\ 
  {\,\,\,\,\,\,O} 
\end{array}$
b
More $\overset{EDG}{\rightarrow}$ (electron donating group), more will be reactivity towards $ESR.$

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