According to cahn-Ingold-prelog sequence rules, the correct order of priority of the given groups is
(1) −C≡N , (2) −CONH2 , (3) −O||C−, (4)−CHO The decreasing order of priority for the given functional groups (for IUPAC nomenclature) is:
The decreasding order of priority for the following functional groups (for IUPAC nomenclature) is: (1) −CONH2 > (2) −C≡N > (3) −CHO > (4) −O||C−