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Which type of carbon-halogen compound has a halogen attached directly to an aromatic ring?
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organohalogen compound
Vinyl chloride is an organohalogen compound that has important industrial applications. When treated with certain catalysts, vinyl chloride monomers undergo polymerization and form the larger compound known as polyvinyl chloride, or PVC. PVC is used in the manufacture of numerous products, including packaging films and water pipes.
The type of carbon-halogen compound in which a halogen atom is attached directly to an aromatic ring is known as an aryl halide (also referred to as a haloarene).
In these compounds, the carbon atom that bears the halogen is a constituent part of the aromatic ring structure. This classification is distinct from other organohalogen compounds, such as alkyl halides, where the halogen is bonded to a carbon that is not part of an aromatic ringāeven if an aromatic ring is present elsewhere in the molecule, as seen in benzyl chloride.1