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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Dacron is a polymer of : 

1. Propylene and para HO—(C6H4)—OH

2. Benzoic acid and ethanol

3. Terephthalic acid and ethylene glycol

4. Benzoic acid and para HO—(C6H4)—OH

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 91%
From NCERT
NEET - 2014
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Which of these is not a monomer for a high molecular mass silicone polymer?

1. MeSiCl3

2. Me2SiCl2

3. Me3SiCl

4. PhSiCl3

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
NEET - 2013
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Which of the following is the monomer of neoprene ?

1. CH2=CH-c=CH

2. CH2=C|CH3-CH=CH2

3. CH2=C|Cl-CH=CH2

4. CH2=CH-CH=CH2

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
 84%
From NCERT
NEET - 2013
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Which of the following statements is false?

1. Artificial silk is derived from cellulose

2. Nylon-66 is an example of elastomer

3. The repeat unit in natural rubber is isoprene

4. Both starch and cellulose are polymers of glucose

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 68%
From NCERT
NEET - 2012
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The structure of neoprene polymer is: 

1.
2.
3.


4.

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 86%
From NCERT
NEET - 2010
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The straight chain polymers formed by:-

1. hydrolysis of (CH3)3SiCl followed by condensation polymerisation

2. hydrolysis of CH3SiCl3 followed by condensation polymerisation

3. hydrolysis of (CH3)4Si by addition polymerisation 

4. hydrolysis of (CH3)2SiCl2 followed by condensation polymerisation

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
NEET - 2009
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Incorrect statement among the given options is: 

1. In vulcanisation, the formation of sulphur bridges between different chains make rubber harder and stronger.

2. Natural rubber has the trans-configuration at every double bond.

3. Buna-S is a copolymer of butadiene and styrene.

4. Natural rubber is a 1,4-polymer of isoprene.

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 85%
From NCERT
NEET - 2008
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