Question

How ethene is prepared by dehydrohalogenation?write equation of it

Answer 1

Traditionally, alkyl halides are substrates for this dehydrohalogenations. The alkyl halide must be able to form an alkene, thus methyl and benzy halides are not suitable substrates. Aryl halides are also unsuitable. Upon treatment with strong base, chlorobenzene dehydrohalogenates to give phenol via a benzyne intermediate.

Dehydrohalogenation is a chemical reaction that involves removal of (elimination of) a hydrogen halide from a substrate