Which of the following functional groups is characterized by a carbonyl group bonded to a nitrogen atom?

Recognize that an amide is characterized by a carbonyl group bonded to a nitrogen atom. The general structure of an amide is $RC=ONHR\text{'}$, where R and R' are organic groups.

Compare the structures of the other functional groups: Alcohols contain a hydroxyl group ($-OH$), Aldehydes have a carbonyl group bonded to a hydrogen ($RC=OH$), and Ethers consist of an oxygen atom bonded to two alkyl or aryl groups ($ROR\text{'}$).