The monomer of the polymer

 is :-

(a)

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

(c) ${\mathrm{CH}}_3\mathrm{CH}=\mathrm{CH}·{\mathrm{CH}}_3$

(d) ${\mathrm{CH}}_3\mathrm{CH}={\mathrm{CH}}_2$

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

(a) Rayon

(b) Gun cotton

(c) Thiokol

(d) 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

Which of the following natural products is not a polymer ?

(a) DNA

(b) Cellulose

(c) ATP

(d) 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

Nylon-66 is a polyamide obtained by the reaction of

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

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

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

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

Which one is protein fibre ?

1. Cotton

2. Rayon

3. Silk

4. Polyster

Bakelite is prepared by the reaction between

1. urea and formaldehyde

2. ethylene glycol

3. phenol and formaldehyde

4. tetramethylene glycol

Terylene is a condensation polymer of ethylene glycol and

(a) benzoic acid

(b) phthalic acid

(c) salicylic acid

(d) terephthalic acid