Question

How are haloarenes classified? Give suitable examples.

Answer 1

Classified based on the number of halogen atoms:

1. Monohaloarenes: Contain only one halogen atom attached to the benzene ring.
   Example: Chlorobenzene (C₆H₅Cl), Bromobenzene (C₆H₅Br)
2. Dihaloarenes: Contain two halogen atoms attached to the benzene ring.
   Example: 1,2-Dichlorobenzene (o-Dichlorobenzene), 1,4-Dibromobenzene (p-Dibromobenzene)
3. Polyhaloarenes: More than two halogen atoms are attached to the benzene ring.
   Example: 2,4,6-Trichlorophenol

Classified based on the type of halogen:

1. Chloroarenes: Haloarene with chlorine substituents.
   Example: Chlorobenzene (C₆H₅Cl)
2. Bromoarenes: Haloarene with bromine substituents.
   Example: Bromobenzene (C₆H₅Br)
3. Iodoarenes: Haloarene with iodine substituents.
   Example: Iodobenzene (C₆H₅I)
4. Fluoroarenes: Haloarene with fluorine substituents.
   Example: Fluorobenzene (C₆H₅F)