Write the IUPAC name for the compounds
`{:CH -= C - CH = CH - CH = CH _(2) `

Explanation

The two C=C functional groups are present at carbon atoms 1 and 3, while the. `C -= C` functional group is present at carbon 5. These groups are indicated by suffixes .diene. and yne. respectively. The longest chain containing the functional groups has 6 carbon atoms, whence the parent hydrocarbon is hexane. The name of compound, therefore, is Hexa-1, 3-dien-5-yne.