NCERT Solutions
Class 12 Chemistry
Polymers

Q.12
Write the monomers used for getting the following polymers.
(i) Polyvinyl chloride
(ii) Teflon
(iii) Bakelite
(i) Polyvinyl chloride (PVC) –
The monomeric unit present is vinyl chloride (CH2 =CH –Cl) PVC is
used in the manufacture of rain coats, curtain cloths, hand bags, toys,
artificial flooring, gramophone records & as a good insulating
material in wires & other electrical goods.
(ii) Teflon (PTFE) - The monomeric unit present is tetrafluoroethene
(n F2C = CF2). Teflon is used as a material resistant to heat & chemical
attack. It is also used for making gaskets, pump packings, valves, oil
seals, non-lubricated bearings.
(iii) Bakelite- the monomeric unit present is formaldehyde (HCHO) &
phenol (C6H5OH). Bakelite is used for making glue for binding
laminated wooden planks & in varnishes, combs, fountain pens,
electrical switches.