How does the monomer of polyvinyl chloride (PVC) differ from the monomer of polyethylene (PE)?
A) The PVC monomer has a chlorine atom, but the PE monomer does not.
B) The PVC monomer has two chlorine atoms, but the PE monomer does not.
C) The PE monomer has one chlorine atom, and the PVC monomer has two chlorine atoms.
D) The PVC monomer has a triple bond, and the PE monomer has a double bond.
Answer: A) The PVC monomer has a chlorine atom, but the PE monomer does not.