Which of the reactions between the following pairs of reagents proceeds by a
mechanism that may be described as an electrophilic substitution?
(a) Benzene + Br2/FeBr3
(b) Propene + Br2
(c) Acetone + NH2NH2
(d) Ethyl bromide + aq KOH
mechanism that may be described as an electrophilic substitution?
(a) Benzene + Br2/FeBr3
(b) Propene + Br2
(c) Acetone + NH2NH2
(d) Ethyl bromide + aq KOH