Give the structure of the monomer of PVC.

(a) Give the common and IUPAC name of the monomer of natural rubber. (b) How is high density polythene obtained? What structural difference it has from low density polythene? (c) Name a copolymer which is used for making non- breakable plastic crockery? (d) Write the names and give the structures of the monomers of Nylon-6,6.

Write the structures of the monomers of the following polymers. (i) PVC (ii) Polypropene

Write the structures of the monomers of the following polymers :

(a) Write the structure of the monomer of Teflon (b) Define thermonsetting plastics.

Write the structures of monomers of : PVC and Nylon-6