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

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry8.4. Organic chemistry reaction mechanism1 Mark
MCQ
Which of the following carbanion is most stable
  • ✓
    Methyl
  • B
    Primary
  • C
    Secondary
  • D
    Tertiary
✓

Answer

Correct option: A.
Methyl
a
(a) $\underset{\begin{smallmatrix} 
 \,\,\,\text{Methyl} \\ 
 \,\text{carbanion} 
\end{smallmatrix}}{\mathop{CH{{_{3}^{{}}}^{-}}\,\,}}\,>\,\underset{\begin{matrix}
   {}  \\
   \begin{matrix}
   {}  \\
   {{1}^{o}}  \\
\end{matrix}  \\
\end{matrix}}{\mathop{R-CH{{_{2}^{{}}}^{-}}\,>}}\,\underset{\,\,\,\,\,\,\,2{}^\circ }{\mathop{R-\underset{R\,\,\,}{\mathop{\underset{|\,\,\,\,}{\mathop{C{{H}^{-}}}}\,}}\,}}\,>\,\underset{\,\,\,\,\,\,\,\,3{}^\circ \,}{\mathop{R-\,\underset{R\,\,}{\overset{R\,\,}{\mathop{\underset{|\,\,\,\,}{\overset{|\,\,\,\,}{\mathop{{{C}^{-}}}}}\,}}}\,}}\,$

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