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

1. $\mathrm{COOH}({\mathrm{CH}}_2{)}_4\mathrm{COOH}<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{H}}_2{\mathrm{NC}}_6{\mathrm{H}}_4{\mathrm{NH}}_2<mspace\; width="1em"></mspace>-<mspace\; width="1em"></mspace>(p)$

2. $\mathrm{COOH}({\mathrm{CH}}_2{)}_4\mathrm{COOH}<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{NH}}_2({\mathrm{CH}}_2{)}_6{\mathrm{NH}}_2<mspace\; width="1em"></mspace>$

3. $\mathrm{COOH}({\mathrm{CH}}_2{)}_4\mathrm{COOH}<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{NH}}_2({\mathrm{CH}}_2{)}_4{\mathrm{NH}}_2<mspace\; width="1em"></mspace>$

4. ${\mathrm{COOHC}}_6{\mathrm{H}}_4\mathrm{COOH}<mspace\; width="1em"></mspace>-<mspace\; width="1em"></mspace>\left(p\right)<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{NH}}_2({\mathrm{CH}}_2{)}_6{\mathrm{NH}}_2$

Melamine plastic crockery is a copolymer of:

1. HCHO and melamine

2. HCHO and ethylene

3. Melamine and ethylene

4. none of the above

Terylene is a condensation polymer of ethylene glycol and

1. Benzoic acid

2. Phthalic acid

3. Salicylic acid

4. Terephthalic acid

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

Bakelite is prepared by the reaction between

1. urea and formaldehyde

2. ethylene glycol

3. phenol and formaldehyde

4. tetramethylene glycol

The polymer that can be classified as polyster polymer is : 

1. Bakelite

2. Melamine

3. Nylon-66

4. Terylene

Which of the following natural products is not a polymer ?

1. DNA

2. Cellulose

3. ATP

4. Urease

Which one is protein fibre ?

1. Cotton

2. Rayon

3. Silk

4. Polyster

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