Write equations showing how you could prepare each of the following from benzene or toluene and any necessary organic or inorganic reagents. If an ortho, para mixture is formed in any step of your synthesis, assume that you can separate the two isomers.(a) Isopropylbenzene(j) 1-Bromo-2,4-dinitrobenzene(b) p-Isopropylbenzenesulfonic acid(k) 3-Bromo-5-nitrobenzoic acid(c) 2-Bromo-2-phenylpropane(l) 2-Bromo-4-nitrobenzoic acid(d) 4-tert-Butyl-2-nitrotoluene(m) Diphenylmethane(e) m-Chloroacetophenone(n) 1-Phenyloctane(f) p-Chloroacetophenone(o) 1-Phenyl-1-octene(g) 3-Bromo-4-methylacetophenone(p) 1-Phenyl-1-octyne(h) 2-Bromo-4-ethyltoluene(q) 1, 4-Di-tert-butyl-1,4-cyclohexadiene( i) 1-Bromo-3-nitrobenzene