Question

The IUPAC name of the compound:
$N{{H}_{2}}CON{{H}_{2}}$ is?
A. urea
B. aminomethanamide
C. carbamide
D. amino carbamide

Answer 1

Hint: In order to find out the IUPAC name of the compound we will first understand the process of writing IUPAC name of any compound and then we will write the IUPAC name of the given compound.

Complete step by step answer:
We will first discuss about the rules to write the IUPAC name of any compound:
- We will identify the longest carbon chain present in the compound, which is called the parent chain. Then the next step is to identify all the substituent.
- Number the carbons of the parent chain from the last that gives the lowest numbers to the substituents.
- If the same substituent appears more than once, then it is found that for any point the position is given where the substituent occurs.
- If there are two or more than two substituents, then they are written in alphabetical order. Instead of these rules there are some other rules also.
- Now, we given compound is:
As we know that IUPAC name of the compound is amino ethanamide. It is found that in the system of IUPAC, $N{{H}_{2}}CON{{H}_{2}}$is called methanamide. We basically add one $N{{H}_{2}}$ substituent to get $N{{H}_{2}}CON{{H}_{2}}$, that is what called as aminomethanamide. So the correct answer is “B”:

Note: - The IUPAC nomenclature is a system of naming organic compounds, as given by the International Union of Pure and Applied Chemistry.
- It is written in the Blue book. We have discussed some of the rules in the solution, one must remember these rules in order to name any compound.