Question

IUPAC name and common name of C2H5NH2

Answer 1

IUPAC :- Ethanamine

common :- Ethylamine

Answer 2

Answer : The IUPAC name and common name of $C_2H_5NH_2$ is, Ethanamine and Ethylamine respectively.

Explanation :

The rules for naming the amines $(RNH_2)$ :

• The selected longest continuous chain of carbon atoms must include $-NH_2$ group.
• The amines are named by suffixing -amine in palce of -e of the corresponding alkane.
• The carbon bearing the amine group gets the lowest possible numbering.
• In case of secondary amine, the longest chain is selected as a parent chain. The other alkyl group is named as prefix and written as N-alkyl before the parent chain. Thus, they are named N-alkylalkanamines.
• In case of tertiary amine, the longest chain is selected as a parent chain. The other two alkyl group is named as prefix and written as N,N-dialkyl before the parent chain.

In the given compound, the longest chain of carbon number is, 2 and the 2 carbon chain name is, ethyl. First, write the name of the longest chain of carbon and then the functional group that is amine as a suffix.

The IUPAC name is, Ethanamine

The common name is, Ethylamine

Hence, the IUPAC name and common name of $C_2H_5NH_2$ is, Ethanamine and Ethylamine respectively.