Question

Which of the following is not an ambident nucleophile?

• A. $O{H}^{-}$
• B. $N{O}_2^{-}$
• C. $C{N}^{-}$
• D. $SC{N}^{-}$

Answer 1

The correct option is A $O{H}^{-}$

ambident nucleophile have more than one donor atoms within the same donor group.
$O{H}^{-}$ is not an ambident nucleophile. It can form bond only through O atom.
$N{O}_2^{-},C{N}^{-}$, and $SC{N}^{-}$ are ambident nucleophiles.
$N{O}_2^{-}$ can form a bond either through N atom or through O atom.
$C{N}^{-}$ can form a bond either through C atom or through N atom.
$SC{N}^{-}$ can form a bond through either S atom or ghrough N atom.