Which of the following is an elastomer ?

1. Vulcanized rubber 

2. Dacron

3. Polystyrene

4. Melamine

Dacron is an example of–

1. Elastomer

2. Fibre

3. Polyamide

4. Thermoaddition polymer

In the reaction–

Reagent X is–

1. Triethylaluminium and titanium tetrachloride.

2. Triethyl aluminum.

3. Zeigler Natta Catalyst.

4. Both 1 & 3

The biodegradable polymer is:

1. Buna-S

2. Nylon-6, 6

3. Nylon 2-nylon 6

4. Nylon-6

Monomer of natural rubber is: 

1. 1, 3-butadiene

2. Isoprene

3. Styrene

4. Chloroprene

Polymer that contains ester linkage is: 

1. Nylon-66

2. PVC

3. Terylene

4. SER

Which one of the following is not a condensation polymer?

1. Melamine

2. Glyptal

3. Dacron

4. Neoprene

The polymer that is addition as well as copolymer is: 

1. PHBV 

2. PVC

3. Buna-S 

4. Neoprene

Nylon is an example of:

1. Polysaccharide
2. Polyamide
3. Polythene
4. Polyester

Which is the monomer of Neoprene in the following?

1.		2.
3.	\(CH_2=CH-C\equiv H\)	4.	\(CH_2=CH-C=CH_2\)