$ - CON{H_2} $ group is known as:

Hint : In order to this question, to know about the $ - CON{H_2} $ group , we should go through amide. And then we will go through the whole concept of carboxylic acid, we will discuss more about it.

Complete Step By Step Answer:
 $ - CON{H_2} $ group is a MethanAmide. $ COOH $ is the group Carboxylic acid.
The oxidation of proline $ {C_5}{H_9}N{O_2} $ or $ Pyrrolidine - {\text{ }}2 - Carboxylic{\text{ }}acid $ produces it. It has prefixes and suffixes including carbamoyl, methanamide, and the term Butanoic acid in a reference.
In organic chemistry, an amide, also known as an organic amide or a carboxamide, is a compound with the general formula , which represents organic groups or hydrogen atoms.
Amides can be found in both nature and technology. Proteins and essential plastics like Nylons, Aramid, Twaron, and Kevlar are polymers with amide groups (polyamides) connecting their units; these linkages are easy to shape, provide structural rigidity, and resist hydrolysis. Many other essential biological molecules, as well as medications such as paracetamol, penicillin, and LSD, are amides.

Note :
The amide group is the functional group of this compound, which is $ - CON{H_2} $ . The Carbons do not need to be numbered since the functional group is $ - CON{H_2} $ . Then we'll proceed to the next level. This Organic compound does not have a suffix.