Chemistry - Nomenclature Question with Solution | TestHub

(a) has correct name as $-{\mathrm{SO}}_3\mathrm{H}$ has higher priority than -CN .

(b) has correct name as it is an ester of phenol and ethanoic acid.

(c) has wrong name mentioned as benzyl correspond to ${\mathrm{C}}_6{\mathrm{H}}_5-{\mathrm{CH}}_2-$. The correct IUPAC name would be phenyl benzoate.

(d) has wrong name mentioned as -OH has higher priority than $-{\mathrm{NH}}_2$ group. Its correct IUPAC name would be 3-amino-5-bromophenol.