2. Molecular Representations

Which of the following functional groups is present in the colored dyes used in the Gram staining technique?

Which functional group is characteristic of alcohols and distinguishes them from other classes of organic compounds?

Consider the compound $C_6{H}_5\mathrm{CH}{2}_2\mathrm{Cl}$ (benzyl chloride). How many different substituents are attached to the benzene ring in this compound?

Which functional group is present in xanthophyll but absent in beta carotene?

Which of the following is a characteristic functional group of alcohols?