Question

How is Teflon prepared? Give chemical equation?

Answer 1

Teflon (PTFE or polytetrafluoroethylene) is prepared by addition (chain growth) polymerisation of tetrafluoroethylene.
$n{F}_{2}C=C{F}_2\underset{\text{heat}}{\overset{\Delta }{\to }}\underset{\text{Teflon}}{-(F_{2}C-C{F}_2){-}_n}$
Thus, the monomer used is tetrafluoroethylene ($F_{2}C=C{F}_2$).