Question

Which of the following is not a ambident nucleophile?

• A. $C{N}^{-}$
• B. $O{H}^{-}$
• C. $N{O}_2^{-}$
• D. All of the above.

Answer 1

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

$O{H}^{-}$ is not an ambident nucleophile. It can form bond only through O atom.
a and c have have more than one donor atoms within the same donor group. hence both 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