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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
Which of the following has minimum reactivity towards nucleophiles ?
  • A
    $CH_2O$
  • B
    $CH_3CHO$
  • C
    $\begin{array}{*{20}{c}}
      O \\ 
      {||} \\ 
      {C{H_3} - C - C{H_3}} 
    \end{array}$
  • ✓
    $\begin{array}{*{20}{c}}
      {O\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
      {||\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
      {C{H_3} - C - C{H_2} - C{H_3}} 
    \end{array}$
✓

Answer

Correct option: D.
$\begin{array}{*{20}{c}}
  {O\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {||\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {C{H_3} - C - C{H_2} - C{H_3}} 
\end{array}$
d
$-CH_3$ is activating group
$-NO_2$ is stongly deactivating group
$-Cl$ is weekly deactivating group

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