6. Draw the structure or name the following compounds: 1 1 L (a) 1-phenyl-3-methylpentane (3) (b) m-flourotoluene (3) 4-bromo-1-ethyl-propylbenzene (C) (3) (d) Give an molecule that satisfy Hckel's rule (3) (e) An antiaromatic compound (3) What is the IUPAC name of the following compound? (f) (3) Br CH3 CI (7) (4) SO3 SOH H heat H2SO4 H20 A (8) (3) NO2 Fe A B H30+ (9) Propose a plausible mechanism for the following reactions. [20] (a) (5) Br (b) Fridel Crafts alkylation using chloroethane (5) (10) 1 2 (i) When a first year student was asked to prepare nitrobenzene in the laboratory, she used sulfuric acid as one of the reagents. Using sulfuric acid and other suitable reagents, use a detailed mechanism to show how nitrobenzene could be prepared in the laboratory. ( ii) What was the purpose of using sulfuric acid for this reaction