Coupling reaction involves what mechanism ?
nucleophilic substitution
Electrophilic addition
nucleophilic addition
Electrophilic substitution
Coupling reaction of aromatic diazonium -
Diazonium ions of aromatic amines also undergo a coupling reaction with aromatic rings having a strong activating group to form diazo compounds.
N in the diazo group act as electrophile and H gets substituted.
Correct option 4