In each of the following pairs of compounds choose which one will react faster with the indicated reagent, and write a chemical equation for the faster reaction:
(a) Toluene or chlorobenzene with a mixture of nitric acid and sulfuric acid
(b) Fluorobenzene or (trifluoromethyl) benzene with benzyl chloride and aluminum chloride
(c) Methyl benzoate (C6H5COCH3) or phenyl acetate (C6H5COCH3) with bromine in acetic acid
(d) Acetanilide (C6H5COCH3) or nitrobenzene with sulfur trioxide in sulfuric acid
(e) p-Dimethylbenzene (p-xylene) or p-di-tert-butyl benzene with acetyl chloride and aluminum chloride
(f) Benzophenone (C6H5CC6H5) or biphenyl (C6H5-C6H5) with chlorine and iron (III) chloride