Q.Write the monomers used for getting the following polymers.

1. Polyvinyl chloride (PVC): an addition homopolymer of vinyl chloride (chloroethene), $CH_2=CHCl$.

   $n\,CH_2=CHCl \longrightarrow -[-CH_2-CHCl-]_n-$

2. Teflon (PTFE): an addition homopolymer of tetrafluoroethene, $CF_2=CF_2$, polymerised under high pressure with a peroxide catalyst. $n\,CF_2=CF_2 \xrightarrow{\text{peroxide, high pressure}} -[-CF_2-CF_2-]_n-$ …

Recall each polymer's standard name/type and identify its monomer(s) from the chapter's list of common polymers, distinguishing addi …

• Writing 'vinyl chloride' incorrectly as $CHCl=CHCl$ instead of $CH_2=CHCl$.
• Forgetting Bakelite needs two monomers (phenol AND formaldehyde), not just one. …