Consider the following sequence of reactions.

The polymer (Y) is -

1. PVC

2. Saran

3. Neoprene

4. Chloroprene

The chemical name of 'Melamine' is:

1. l, 3, 5-Triamine-2, 4, 6-triazine

2. 2, 4, 6-Triamine-l, 3, 5-triazine

3. 2-Amino-l, 3, 5-triazine

4. 2, 4-Diamino-l, 3, 5-triazine

Peroxide initiated polymerizations occur via -

1. Hydrocarbon combustion 

2. Natural process synthesis

3. Isomeric saponification

4. Free radical chain propagation

The thermoplastic polymer among the following is -

1. Bakelite

2. Urea-formaldehyde resin

3. PVC

4. Melamine-formaldehyde resin

Latex can be coagulated with?

(1) ${\mathrm{CH}}_2\mathrm{COOH}$

(2) ${\mathrm{H}}_2\mathrm{O}$

(3) ${\mathrm{CH}}_3\mathrm{OH}$

(4) All of these

In a polymer sample, 30% of molecules have a molecular mass of 20,000, 40% have 30,000, and the rest- 60,000. What is the weight average molecular mass= of the polymer?

(1) 40,300

(2) 30,600

(3) 43,333

(4) 50,400

Which of the following statement is correct?

(1) Vinyon is a copolymer of vinyl chloride and vinyl acetate

(2) Saran is a copolymer of vinyl chloride and vinylidene chloride

(3) butyl rubber in a copolymer of isobutylene and isoprene

(4) all are correct

The reagent that is used for converting propylene to polypropylene is: 

1. TiCl₃ + K/THF

2. TiCl₄ + Al(C₂H₅)₃

3. TiCl₃ + (CH₃)₂Mg

4. TiCl₄ + CH₃(CH₂)₃Al

Which of the following polymer can be used for lubrication and as an insulator? 

(1) SBR

(2) PVC

(3) PTFE

(4) PAN

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