Is (-CH₂-CHCl-)ₙ a homopolymer or a copolymer?

The given polymer, (-CH₂-CHCl-)ₙ, is a homopolymer.

A homopolymer is a polymer derived from a single type of monomer. In this case, the repeating unit is -CH₂-CHCl-, which is derived from the monomer vinyl chloride (CH₂=CHCl). Since only one type of monomer is involved in the polymerization process, the resulting polymer is classified as a homopolymer. A copolymer, on the other hand, would be formed from two or more different types of monomers.