Answer
1-Bromo-3-ethylbenzene.
Work Step by Step
The structure for benzene is named according to the nomenclature system rules set by the IUPAC.
1. This is a disubstituted benzene. Also, the substituents are named alphabetically.
2. So the carbon on which a bromine atom is attached is numbered 1.
3. And thus, an ethyl group is attached on carbon number 3.
