Write the monomers used for getting the following polymers:
$(i)$ Polyvinyl chloride
$(ii)$ Teflon
$(iii)$ Bakelite

(N/A) $(i)$ The monomer for Polyvinyl chloride is Vinyl chloride $(CH_2=CHCl)$.
$(ii)$ The monomer for Teflon is Tetrafluoroethylene $(CF_2=CF_2)$.
$(iii)$ The monomers for Bakelite are Formaldehyde $(HCHO)$ and Phenol $(C_6H_5OH)$.