An amide is a functional group having a nitrogen atom attached to the carbonyl carbon atom.
The bonding of carbonyl carbon to the nitrogen atom is known as amide linkage.
The two hydrogen atoms are attached to the nitrogen atom and one hydrogen atom is attached to the carbonyl group which is known as a simple amide, formamide.
Amide is also known as carboxamide.
It has the general formula of where R or R' or R" represents the alkyl group.
Amides are classified based on the amine subgroup as primary, secondary, or tertiary,
Primary Amides:
Primary amide is the amide in which the nitrogen atom is linked to one carbon atom.
Methanamide, ethanamide, and benzamide are a few examples.