Nylons, polyesters, and cotton, all possess strength due to:

1. intermolecular H-bonding

2. van der Waals’ attraction

3. dipole-dipole interaction

4. None of the above

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
 74%
From NCERT
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PDI for natural polymers is generally close to:

(1) zero                             

(2) 100

(3) 1                                   

(4) 10

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
 53%
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The catalyst used in the manufacture of polythene by the Ziegler method is:

1. titanium tetrachloride and triphenyl aluminum

2. titanium tetrachloride and triethyl aluminium

3. titanium dioxide

4. titanium isopropoxide

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
 85%
From NCERT
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 Which of the following is a step-growth polymer?

1. Bakelite

2. Polyethylene

3. Teflon

4. PVC

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
 74%
From NCERT
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The initial reaction in the formation of bakelite is an example of:

(1) Aromatic electrophilic substitution.

(2) Aromatic nucleophilic substitution.

(3) Free radical reaction.

(4) Aldol reaction.

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
From NCERT
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PMMA is the polymer of.

1. methylmethacrylate

2. methylacrylate

3. methacrylate

4. ethylacrylate

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
 82%
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Condensation of caprolactam gives:

1. nylon-6,6               
2. nylon-6
3. nitrile rubber
4. nylon-6,10
 

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 88%
From NCERT
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Natural rubber has

1. All trans-configuration.

2. Alternate cis - and trans-configuration.

3. Random cis - and trans-configuration.

4. All cis-configuration.

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
 78%
From NCERT
NEET - 2016
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Biodegradable polymer which can be produced from glycine and aminocaproic acid is

1. Nylon- 2 - Nylon - 6

2. PHBV

3. Buna-N

4. Nylon-6, 6

Subtopic:  Classification - Methods of Polymerization & Copolymerization | Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 73%
From NCERT
NEET - 2015
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Caprolactam is used for the manufacture of-

1. Nylon-6
2. Polythene
3. Terylene
4. Nylon-6 6

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 88%
From NCERT
NEET - 2015
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