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- A or hv ? ннWhich of the following molecules could be considered aromatic? Assume all of the compounds are planar. ^ N H₂ Cyclopentadiene is especially acidic for a hydrocarbon. Use a diagram to explain why.Draw the structures for each of the following molecules. (a) fluorobenzene; (b) 1-chloro-2-fluorobenzene;(c) 1-iodo-4-nitrobenzene; (d) 1,3-dibromobenzene; (e) 2,3-dimethyl-1-cyclopentylbenzene; (f) 4-ethoxy-1,2-dinitrobenzene