a When an equimolar mixture of chlorobenzene and (trifluoromethyl)benzene is treated with excess HNO3,[xH2SO, HNO3,H2SO4, following the course of the reaction by 1H2NMR1HNMR spectroscopy reveals the initial formation of 1-chloro-2-nitro- and 1chloro-4-nitrobenzene until all chlorobenzene has disappeared. Subsequently, the spectrum shows the gradual appearance of 1-nitro-3(trifluoromethyl)benzene. Explain. c Show how you would synthesize the following derivatives from benzene