91Ó°ÊÓ

The structures of benzene substituted compounds are draw from the IUPAC nomenclature. The numbering of the substituent or group attached to the benzene ring is number from the carbon centre of the main functional group.

The structure of 2-bromo-4-iodophenol is shown below.

The structure consists of hydroxyl group at the 1^st position, since it is the phenol compound along with a bromine at the 2^nd position and an iodine at the 4^th positin in the ring.

The structure of 2,5-dinitrobenzaldehyde is shown below.

The structure consists of an aldehyde as the main functional group along with two nitro groups at the 2^nd and 5^th position.

The structure of 4-bromo-3-chloroaniline is shown below.

The given compound is composed of an amino group as the main functional group along with a chlorine atom at the 3^rd position and a bromine atom at the 4^th position.