Question

How many number of isomers are possible for a disubstituted Benzene?

Answer 1

Structural Isomers of disubstituted benzene:

• Structural Isomers are the compounds in which the compounds have the same molecular formula but different structural formulas.
• In structural isomerism, the arrangement of atoms or groups of atoms is different.
• Benzene is a six-membered aromatic compound.
• In Benzene, the first or original substituted group is numbered as one, and the remaining substituted group is numbered as two.
• If groups are substituted on the $1-2$ position, then it is known as the ‘Ortho’ substitution or ‘Ortho’ isomer.
• If the substitution is at $1-3$ the position, then it is called a ‘Meta’ substitution or isomer.
• Disubstituted benzene in which position of groups are $1-4$ is known as ‘Para’ substitution or isomer.

Hence, there are three isomers that are possible for disubstituted benzene.