Final answer:
There are three constitutional isomers of C₇H₁₅Br.
Step-by-step explanation:
The number of constitutional isomers of C₇H₁₅Br can be determined by examining the different ways that the atoms can be arranged while maintaining the same molecular formula. In this case, the molecular formula contains 7 carbon atoms and 15 hydrogen atoms, with one of the hydrogen atoms replaced by a bromine atom.
One approach to determining the number of constitutional isomers is to systematically go through the possibilities:
- Isomer 1: Both bromine atoms are adjacent to each other on the carbon chain.
- Isomer 2: The two bromine atoms are one carbon apart on the carbon chain.
- Isomer 3: The two bromine atoms are two carbons apart on the carbon chain.
Therefore, there are three constitutional isomers of C₇H₁₅Br.