Final answer:
There are four isomers of C4H9Br: Butyl Bromide, Isobutyl Bromide, Sec-Butyl Bromide, and Tert-Butyl Bromide.
Step-by-step explanation:
There are four isomers of C4H9Br, each with a different arrangement of atoms. The common names and structures of the isomers are:
- Butyl Bromide:
CH3CH2CH2CH2Br - Isobutyl Bromide:
CH3CH(CH3)CH2Br - Sec-Butyl Bromide:
CH3CH(CH3)CH2Br - Tert-Butyl Bromide:
(CH3)3CBr