Which could not be directly prepared from 4-bromobenzenediazonium ion?

Options

A. Bromobenzen
B. 1,4-dibromobenzene
C. 4-bromoacetophenone
D. 4-bromofluorobenzene

Answer

C

Explanation

Diazo group cannot be replaced directly by aceto `(CH_3CO-)` group, remaining all groups `(-CN,-Br` and `-F)` can be brought directly. Hence, among the given, 4-bromoacetophenone cannot be prepared directly from corresponding diazonium salt.