Step-by-step explanation:
In the given molecule of 5-isopropyl-2-methyl-3-nonene their are nine carbon atom attached in straight chain.
- 3-nonene means that double bond is between the third carbon and forth carbon atom.
- Isopropyl group
on the fifth carbon atom in the chain
- Methyl group
on second carbon atom in the chain.
Th structure of the given organic molecule is attached as an image.