Starting from benzene or toluene or aniline and with the aid of diazonim salt synthesis the following : a.
p-Nitrobenzene
b. p-Cyano benzoic acid
c. o-Bromotoluene
d. 1,3,5,-Tribromobenzene
e. m-Bromotoluene
f. m-Bromochlorobenzene
g. p-Iodotoluene .