The monomer of the polymer

 is :-

1.

2. ${\left({\mathrm{CH}}_3\right)}_2\mathrm{C}=\mathrm{C}{\left({\mathrm{CH}}_3\right)}_2$

3. ${\mathrm{CH}}_3\mathrm{CH}=\mathrm{CH}·{\mathrm{CH}}_3$

4. ${\mathrm{CH}}_3\mathrm{CH}={\mathrm{CH}}_2$

Which can absorb over 90% of its own mass of water and does not stick to wound ?

1. Rayon

2. Gun cotton

3. Thiokol

4. Saran

Thermoplastics are:

1. Linear polymers

2. Soften or melt on heating 

3. Molten polymer can be moulded in desired shape

4. All of the above

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

1. Copolymer.

2. Addition polymer.

3. Thermo-setting polymer.

4. Homopolymer.

Which of the following natural products is not a polymer ?

1. DNA

2. Cellulose

3. ATP

4. Urease

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

Bakelite is prepared by the reaction between

1. urea and formaldehyde

2. ethylene glycol

3. phenol and formaldehyde

4. tetramethylene glycol

Melamine plastic crockery is a copolymer of:

1. HCHO and melamine

2. HCHO and ethylene

3. Melamine and ethylene

4. none of the above

Acrilan is a hard,  wool-like feel and a high melting material. Which of the following represents its structure?

1. ${\left(-{\mathrm{CH}}_2-\underset{{\mathrm{COOC}}_2{\mathrm{H}}_5}{\underset{|}{\mathrm{CH}}}-\right)}_n$

2. ${\left(-{\mathrm{CH}}_2-\underset{\mathrm{Cl}}{\underset{|}{\mathrm{CH}}}-\right)}_n$

3. ${\left(-{\mathrm{CH}}_2-\underset{\mathrm{CN}}{\underset{|}{\mathrm{CH}}}-\right)}_n$

4. ${\left(-{\mathrm{CH}}_2-\underset{{\mathrm{COOCH}}_3}{\underset{|}{\stackrel{{\mathrm{CH}}_3}{\stackrel{|}{\mathrm{C}}}}}-\right)}_n$

The polymer that can be classified as polyster polymer is : 

1. Bakelite

2. Melamine

3. Nylon-66

4. Terylene