The species that contain(s) $\mathrm{sp}^{2}$ hybridized carbon atom and have planar shape is/are\

Question

The species that contain(s) $\mathrm{sp}^{2}$ hybridized carbon atom and have planar shape is/are\ I. $\mathrm{CH}_{3}{ }^{-}$\ II. $\mathrm{CH}_{3}^{+}$\ III. $\stackrel{*}{\mathrm{C}} \mathrm{H}_{3}$\

Professor PC Thomas Classes · Answer

Both free radicals and carbocations contain $\mathrm{sp}^{2}$ hybridized carbon. Carbanion contains $\mathrm{sp}^{3}$ hybridized carbon