Final answer:
There are three different aromatic compounds with the formula C6H3Br3, which are 1,2,3-tribromobenzene, 1,2,4-tribromobenzene, and 1,3,5-tribromobenzene.
Step-by-step explanation:
The question asks about the number of aromatic compounds with the formula C6H3Br3 and to draw and name each isomer to verify the answer. A six-membered aromatic ring such as benzene can be substituted with three bromine atoms in several ways, considering the different positions that the bromine atoms can occupy around the ring.
For benzene, C6H6, the positions on the ring are referred to as ortho (1,2-disubstitution), meta (1,3-disubstitution), and para (1,4-disubstitution). With three substituents, we have to consider all possible combinations of these positions
- 1,2,3-tribromobenzene (ortho-meta)
- 1,2,4-tribromobenzene (ortho-para)
- 1,3,5-tribromobenzene (meta-para or symmetrical)
These are the three possible isomers of C6H3Br3, showcasing that the arrangement of substituents on the ring leads to different isomeric compounds.
Hence, there are three different aromatic compounds with the formula C6H3Br3.