What type of molecules act as initiators in cationic addition polymerization?

Write the free radical mechanism for the polymerization of ethene.

What are natural and synthetic polymers? Give two examples of each type.

In which classes the polymers are classified on the basis of molecular forces?

Give the uses of low density and high density polymers.

How can you differentiate between addition and condensation polymerization?

Distinguish between the terms homopolymer and copolymer and give an example of each.

Explain the term co-polymerization and give two examples.

What is Novolac?

Define thermoplastics and thermosetting polymers with two examples of each.