Increasing order of intermolecular forces for Nylon - 6, 6, Buna-S, Polythene is-

1. Buna-S > Polythene > Nylon- 6,6

2. Buna-S < Polythene < Nylon- 6,6

3. Buna-S < Nylon- 6,6 < Polythene

4. Nylon-6,6 < Buna-S < Polythene

 

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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 Monomers of Dacron polymer is: 

1. Ethylene glycol and terephthalic acid

2. Ethylene oxide and  phthalic acid

3. Ethylene glycol and benzoic acid

4. Benzamide and terephthalic acid

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Classify the polymers into addition and condensation polymers: Terylene, Bakelite, Polyvinyl chloride, Polythene. 

1) Addition polymers: Terylene, bakelite; Condensation polymers: Polyvinyl chloride, polythene

2) Addition polymers: bakelite; Condensation polymers: Terylene, bakelite, Polyvinylchloride, polythene

3) Addition polymers: polythene; Condensation polymers: Terylene, bakelite, Polyvinylchloride

4) Addition polymers: Polyvinyl chloride, polythene; Condensation polymers: Terylene, bakelite

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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The difference between Buna-N and Buna-S is -

1. Buna-N is a copolymer of 3−butyne, and acrylonitrile while Buna-S is a copolymer of 3−butyne, and styrene.

2. Buna-S is a copolymer of 3−butyne, and acrylonitrile while Buna-N is a copolymer of 3−butyne, and styrene.

3. Buna-N is a copolymer of 1,3−butadiene, and acrylonitrile while Buna-S is a copolymer of 1, 3−butadiene, and styrene.

4. Buna-S is a copolymer of 1,3−butadiene, and acrylonitrile while Buna-N is a copolymer of 1, 3−butadiene, and styrene.

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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On the basis of molecular forces, polymer can be classified as -

1. Elastomers

2. Fibres

3. Thermoplastic polymers 

4. All of the above

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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The term copolymerization means formation of polymer from : 

1. The same monomer.

2. Two or more different monomers.

3. Acid and base.

4. Elastomer.

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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The examples of thermoplastics and thermosetting polymers are respectively -

1) Thermoplastics:polythene, urea-formaldehyde resins ; Thermosetting : bakelite, polystyrene

2) Thermoplastics: bakelite, polystyrene; Thermosetting : polythene, urea-formaldehyde resins

3) Thermoplastics:polythene, polystyrene ; Thermosetting : bakelite, urea-formaldehyde resins

4) Thermoplastics:bakelite, urea-formaldehyde resins ; Thermosetting : polythene, polystyrene

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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The presence of double bonds in rubber molecules increase -

1. Viscosity 

2. Elasticity

3. Surface Tension

4. Vapour pressure

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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The purpose of vulcanization of rubber is/are -

1. To maintain the elasticity of natural rubber.

2. To improve the tensile strength of natural rubber.

3. To use for a wide range of temperatures.

4. All of the above.

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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The salient  feature of biodegradable polymer is -

1. Polymer that can be decomposed.

2. Polymer that can not be decomposed.

3. Polymer that can be denatured.

4. Polymer that can not be denatured.

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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