Question

Give IUPAC the name of the following organic compound:

Answer 1

Step: 1: Determination of Root Word

The longest chain contains 2 carbon atoms with aldehyde as a functional group present at 1st position, so Root Word is ‘Eth’.

$\underset{2}{\mathrm{C}}{\mathrm{H}}_3-\underset{1}{\mathrm{C}}\mathrm{HO}$

Step: 2: Determination of Suffix

Functional group: “−CHO” (Aldehyde).

The suffix will be “-al"

$\underset{2}{\mathrm{C}}{\mathrm{H}}_3-\underset{1}{\mathrm{C}}\mathrm{HO}$

Therefore, the IUPAC nomenclature of the given compound is Eth-1-al (ie., Ethanal )