$-\left[\mathrm{NH}{\left({\mathrm{CH}}_2\right)}_6\mathrm{NHCO}{\left({\mathrm{CH}}_2\right)}_4\mathrm{CO}\right]{-}_n$ is a -

1. Copolymer.

2. Addition polymer.

3. Thermo-setting polymer.

4. Homopolymer.

Synthetic human hair wigs are made from a copolymer of vinyl chloride and acrylonitrile and is called:

1. PVC

2. polyacrylonitrile

3. cellulose

4. dynel

Nylon-6,6 is a polyamide obtained by the reaction of

1. $\mathrm{COOH}({\mathrm{CH}}_2{)}_4\mathrm{COOH} + {\mathrm{H}}_2{\mathrm{NC}}_6{\mathrm{H}}_4{\mathrm{NH}}_2 - (p)$

2. $\mathrm{COOH}({\mathrm{CH}}_2{)}_4\mathrm{COOH} + {\mathrm{NH}}_2({\mathrm{CH}}_2{)}_6{\mathrm{NH}}_2$

3. $\mathrm{COOH}({\mathrm{CH}}_2{)}_4\mathrm{COOH} + {\mathrm{NH}}_2({\mathrm{CH}}_2{)}_4{\mathrm{NH}}_2$

4. ${\mathrm{COOHC}}_6{\mathrm{H}}_4\mathrm{COOH} - \left(p\right) + {\mathrm{NH}}_2({\mathrm{CH}}_2{)}_6{\mathrm{NH}}_2$

Which one is protein fibre ?

1. Cotton

2. Rayon

3. Silk

4. Polyster

Terylene is a condensation polymer of ethylene glycol and

1. Benzoic acid

2. Phthalic acid

3. Salicylic acid

4. Terephthalic acid

The polymer that can be classified as polyster polymer is : 

1. Bakelite

2. Melamine

3. Nylon-66

4. Terylene

Structures of some common polymers are given. The incorrect representation among the following is: 

1. Teflon  

2. Neoprene 

3. Terylene  

4. Nylon-6,6   

Monomer of  is 

1. 2-methyl propene

2. styrene

3. propylene

4. ethene

Polymerisation of chloroethylene gives the polymer:

1. polythene

2. PVC

3. teflon

4. nylon

The example of a thermosetting polymer among the following options is : 

1. 

2. 

3. 

4.