Which of the following undergoes polymerization to form $PVC$?

$PMMA$ is a polymer of ............ .

The following structure represents a subunit of a hydrocarbon polymer that may be prepared by a radical polymerization method. Identify the monomer that has been polymerized to make this polymer chain.

Which of the following compounds does not undergo vinyl polymerization?

Polyvinyl alcohol is prepared by:

Which of the following polymers can be formed by a condensation polymerization reaction?