Answer
Alkene
2,3,4-Trimethyl-2-pentene
Work Step by Step
These structures for alkenes are made according to the nomenclature system rules set by the IUPAC.
1. The longest hydrocarbon chain has 5 carbon atoms, thus its a pentene.
2. The double bond is given the lowest number. hence, it is on the second carbon from the right.
3. The methyl group is found on carbon number 2, 3 and 4. Because there are three methyl groups, it is called a trimethyl.
