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JEE Main levelSingle correct optionDifficulty 2 of 3cb067

Carbon in the methyl cation $CH X_{3} X^{+}$ and in the methyl anion $CH X_{3} X^{-}$ is hybridised, respectively, as

A $s p$ and $s p^{3}$
B $s p^{2}$ and $s p^{3}$
C $s p^{2}$ and $s p^{2}$
D $s p^{3}$ and $s p^{2}$

Answer: B

CH X_{3} X^{+}

has three bond pairs and no lone pair (3 domains,

s p^{2}

, planar).

CH X_{3} X^{-}

has three bond pairs and one lone pair (4 domains,

s p^{3}

, pyramidal).

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