Polyacrylonitrile, characterized by the  repeating unit is made from the monomer: 

1. ${\mathrm{CH}}_2=\mathrm{CHCN}$

2. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CN}$

3. ${\mathrm{HOCH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$

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

The monomer used for the manufacture of PVC is obtained by the addition of -

1. ${\mathrm{Cl}}_2$ to ethylene

2. ${\mathrm{Cl}}_2$ to acetylene

3. HCl to ethylene

4. HCl to acetylene in presence of ${\mathrm{Hg}}^{2+}$ salts

The number average molecular mass and mass average molecular mass of a polymer are respectively 30,000 and 40,000. The polydispersity index of the polymer is

1. < 1

2. > 1

3. 1

4. 0

$\left[\mathrm{NH}\right({\mathrm{CH}}_2\left)\mathrm{NHCO}\right({\mathrm{CH}}_2{)}_4\mathrm{CO}]\mathrm{n}\text{ is a }$

(1) thermosetting polymer

(2) homopolymer

(3) co-polymer

(4) addition polymer

Bakelite is made from phenol and formaldehyde. The initial reaction between the two compounds is an example of

(1) Free radical reaction.

(2) Aromatic nucleophilic substitution.

(3) Aromatic electrophilic substitution.

(4) Aldol reaction.

True statements regarding polymers are: 

a. Polymers have a low molecular weight.

b. Polymers have high viscosity.

c. Polymers scatter light.

d. Polymers do not carry any charge.

1. a, b and c

2. a, b and d

3. b, c and d

4. a, c and d

Which of the following cannot be used as a plasticizer?

1. 

2. 

3. cresyl triphosphate

4. Di- n-octyl phthalate

The polymer containing strong intermolecular forces like hydrogen bonding is

(1) Teflon

(2) nylon 6,6

(3) polystyrene

(4) natural rubber

The species which can best serve as an initiator for the cationic polymerization is

(1) ${\mathrm{AlCl}}_3$

(2) ${\mathrm{HNO}}_3$

(3) ${\mathrm{LiAlH}}_4$

(4) BuLi

Which polymer is used in the manufacture of paints and lacquers? 

(1) Bakelite

(2) Glyptal

(3) Polypropene

(4) Polyvinyl chloride