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NEET levelSingle correct optionDifficulty 1 of 3o1004

Which of the following is an ambident nucleophile (can attack through two different atoms)?

A $Cl X^{-}$
B $CN X^{-}$
C $OH X^{-}$
D $CH X_{3} O X^{-}$

Answer: B

An ambident nucleophile has two different nucleophilic sites.

CN X^{-}

can attack through carbon (giving nitriles) or through nitrogen (giving isonitriles).

Cl X^{-}

,

OH X^{-}

and

CH X_{3} O X^{-}

each have a single kind of attacking atom.

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