Identify the compounds where the benzene ring must be treated as a substituent (a phenyl group) rath — IUPAC and Nomenclature Chemistry Question

💡 Solution & Explanation

In (A), the aliphatic side chain contains the principal functional group ($-OH$), making it Phenylmethanol. In (B), the aliphatic side chain contains a multiple bond, making it 1-Phenylprop-1-ene. In (C) and (D), the functional groups are directly on the ring, making Benzoic acid and Benzenesulphonic acid the parent names.