Polyethene

Q.

122. What is meant by a copolymer? Why are copolymers preferred to other polymers for various purposes?

Q. Select the properties which can be attributed to polyethene.

1. Addition polymerisation
2. Homopolymer
3. Nonbiodegradable
4. High strength

Q. The monomer unit of polyethene is?

1. $C{F}_2=C{F}_2$
2. $C{H}_2=C{H}_2$
3. $C{H}_2=CHCl$
4. $C{H}_2=CHCN$

Q. Which of the following can be polymerised to polythene?

1. Ethyl acetate
2. Ethylene
3. Ethene as well as Ethylene
4. Ethene