Determine which base will work to deprotonate each compound in an acid/base extraction. Benzene ring with a carboxylic acid on one carbon and a methyl ester group on the opposite carbon
Benzene ring with a three carbon chain attached to one carbon. At the other end of the three carbon chain is a hydroxyl group.
Benzene ring with a hydroxyl group attached to one carbon and a tertbutyl group attached to the opposite carbon -