variable group. In organic chemistry, a<unk>  is a compound with the formula CH2=CHX (X =<unk> . The term<unk>  is often used to describe any alkenyl group. For this reason, alkenyl<unk> s with the formula RCH=CHX are sometimes called<unk> s. From the perspective of applications, the dominant member of this class of compounds is<unk>  chloride, which is produced on the scale of millions of tons per year as a precursor to polyvinyl chloride. Polyvinyl fluoride is another commercial product. Related compounds include<unk> idene chloride and<unk> idene fluoride.
Vinyl halide
Vinyl chloride
Alkylphenol
Hydrogen fluoride
Naphthalene
Nitrobenzene
Lewisite
Benzene