The copolymer from the given options is-

1. Nylon 6, 6

2. Polyethylene

3. PMMA

4. Nylon-6

${\mathrm{F}}_2\mathrm{C}$ $=$ ${\mathrm{CF}}_2$ is a monomer of -

1. Teflon

2. Glyptal

3. Nylon-6

4. Buna-S

Orlon has a unit of -

1. Glycol

2. Isoprene

3. Vinyl cyanide

4. Acrolein

The biodegradable polymer among the following is:

1. Cellulose

2. Nylon-6

3. Polythene

4. Polyvinylchloride

Terylene is not a : 

1. Synthetic fiber

2. Thermosetting plastic

3. Step-growth polymer

4. Condensation polymer

Perlon is also known as:

1. Nylon-6, 10

2. Nylon-4, 4

3. Nylon 6, 6, 6

4. Nylon-6

An example of elastomer among the following is: 

1. Dacron

2. Melamine

3. Vulcanized rubber

4. Polystyrene

Consider the following sequence of reactions.

The polymer (Y) is -

1. PVC

2. Saran

3. Neoprene

4. Chloroprene

The chemical name of 'Melamine' is:

1. l, 3, 5-Triamine-2, 4, 6-triazine

2. 2, 4, 6-Triamine-l, 3, 5-triazine

3. 2-Amino-l, 3, 5-triazine

4. 2, 4-Diamino-l, 3, 5-triazine

Peroxide initiated polymerizations occur via -

1. Hydrocarbon combustion 

2. Natural process synthesis

3. Isomeric saponification

4. Free radical chain propagation