Which one of the following is an example of a thermosetting polymer ?

The polymer that is not prepared by condensation process is: 

1. Melamine

2. Glyptal

3. Dacron

4. Neoprene

Buna-S is a synthetic copolymer of:

1. Styrene and buta-1,3-diene.

2. Styrene and ethylene.

3. 1,3-Butadiene and ethylene.

4. None of the above.

Buna rubber is a polymer of:

(1) 1,3-btadiene

(2) vinyl acetate

(3) styrene

(4) none of these

Natural rubber is a polymer of :-

1. Isoprene

2. Styrene

3. Ethylene

4. Butadiene

Polymer that is used to make non stick cookware is: 

1. PVC

2. Polysterene

3. Polyethylene

4. PTFE

A copolymer of isobutylene and isoprene is called:

(a) butyl rubber                   (b) buna-S

(c) buna-N                          (d) thiokol

Terylene is a:

1. Polyamide                     

2. Polyester

3. Polyether                       

4. Long chain hydrocarbon

Thermosetting plastics are:

(a) cross-linked polymers

(b) don’t melt or soften on heating

(c) cross-linking is usually developed at the time of moulding where they harden reversibly

(d) all of the above

Which are true for terpolymer?

(a) Contains three monomers

(b) ABS plastic

(c) A polymer of acrylonitrile, butadiene and styrene

(d) All of the above