Thermoplastics are:

1. Linear polymers

2. Soften or melt on heating 

3. Molten polymer can be moulded in desired shape

4. All of the above

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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-NHCH26NHCOCH24CO-n is a -

1. Copolymer.

2. Addition polymer.

3. Thermo-setting polymer.

4. Homopolymer.

Subtopic:  Classification - Methods of Polymerization & Copolymerization | Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable | Application of Polymers |
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Which of the following natural products is not a polymer ?

1. DNA

2. Cellulose

3. ATP

4. Urease

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

Subtopic:  Classification - Methods of Polymerization & Copolymerization | Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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Nylon-6,6 is a polyamide obtained by the reaction of

1. COOH(CH2)4COOH + H2NC6H4NH2 - (p)

2. COOH(CH2)4COOH + NH2(CH2)6NH2 

3. COOH(CH2)4COOH + NH2(CH2)4NH2 

4. COOHC6H4COOH - (p) + NH2(CH2)6NH2

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Which one is protein fibre ?

1. Cotton

2. Rayon

3. Silk

4. Polyster

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Bakelite is prepared by the reaction between

1. urea and formaldehyde

2. ethylene glycol

3. phenol and formaldehyde

4. tetramethylene glycol

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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Terylene is a condensation polymer of ethylene glycol and

1. Benzoic acid

2. Phthalic acid

3. Salicylic acid

4. Terephthalic acid

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Melamine plastic crockery is a copolymer of:

1. HCHO and melamine

2. HCHO and ethylene

3. Melamine and ethylene

4. none of the above

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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Acrilan is a hard,  wool-like feel and a high melting material. Which of the following represents its structure?

1. -CH2-CH|COOC2H5-n

2. -CH2-CH|Cl-n

3. -CH2-CH|CN-n

4. -CH2-C|CH3|COOCH3-n

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