On the basis of mode of formation, polymers can be classified as:
1. Addition polymers only.
2. Condensation polymers only.
3. Co-polymers.
4. Both addition and condensation polymers.

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Rubber is heated with sulphur and the process is known as:

1. Galvanization.

2. Vulcanization.

3. Bessemerization.

4. Sulphonation.

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Buna-S is a synthetic copolymer of:

1. Styrene and buta-1,3-diene.

2. Styrene and ethylene.

3. 1,3-Butadiene and ethylene.

4. None of the above.

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Match the polymers given in Column I with their chemical names given in Column II.

Column I Column II
A. Nylon-6 1. Polyvinyl chloride
B. PVC 2. Polyacrylonitrile
C. Acrilan 3. Polycaprolactum
D. Natural rubber 4. cis-polyisoprene

Codes

A B C D
1. 2 3 4 1
2. 3 1 2 4
3. 1 4 3 2
4. 4 3 2 1
Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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The catalyst used in the manufacture of polythene by Ziegler method is:
1. Titanium tetrachloride and triphenyl galium 
2. Titanium tetrachloride and triethyl aluminium
3. Titanium dioxide
4. Titanium isopropoxide

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Monomer of neoprene is: 

1.
2.
3.
4.

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Polyacrylonitrile, characterized by the  repeating unit is made from the monomer: 

1. CH2=CHCN

2. CH3CH2CN

3. HOCH2CH2CH3

4. CH3CH=CHCN

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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An example of elastomer among the following is: 

1. Dacron

2. Melamine

3. Vulcanized rubber

4. Polystyrene

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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The polymer that is not prepared by condensation process is: 

1. Melamine

2. Glyptal

3. Dacron

4. Neoprene

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Low-density polythene is prepared by -

1. Free-radical polymerization.

2. Cationic polymerization.

3. Anionic polymerization.

4. Ziegler-Natta polymerization.

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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