The correct name of the given reaction is $$\mathrm{Ar{-}N_2^+X^-\xrightarrow{CuCN/KCN}Ar{-}CN+N_2}$$

(B) Gabriel Phthalimide synthesis

(D) Hoffmann bromamide degradation reaction

CBSE Class 12 · 2024 · Compounds Containing NitrogenMultiple Choice

The correct name of the given reaction is

Ar - N_{2}^{+} X^{-} CuCN/KCN Ar - CN + N_{2}

Answer: (A)

Replacement of the diazonium group by –CN (or –Cl, –Br) using the copper(I) salt CuCN/KCN is \textbf{Sandmeyer's reaction}.
Correct option: (A).

CBSE Class 12 Board · 2024 · Single correct option