Which amongst the following molecules on polymerization produces neoprene? 
1. 2.
3. 4.

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 58%
Level 3: 35%-60%
NEET - 2023
Hints

Given below are two statements:
Statement I: High density polythene is formed in the presence of catalyst triethylaluminium and titanium tetrachloride.
Statement II: High density polymers are chemically inert.  

In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is correct but Statement II is incorrect. 
2. Statement I is incorrect but Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
Subtopic:  Classification - Methods of Polymerization & Copolymerization |
 60%
Level 2: 60%+
NEET - 2023
Hints

Which among the following is a thermoplastic polymer?

1.  Bakelite
2.  Polythene
3.  Urea-formaldehyde resin
4.  Melamine polymer
Subtopic:  Classification - Methods of Polymerization & Copolymerization |
 67%
Level 2: 60%+
NEET - 2022
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Match list-I with list-II:

List-I
(Monomers)
List-II
(Polymers)
(a) Caprolactam (i) Bakelite
(b) Ethylene glycol and Benzene-1, 4-dicarboxylic acid (ii) Nylon 6, 6
(c) Hexamethylenediamine and adipic acid (iii) Nylon-6
(d) Phenol and Formaldehyde (iv) Terylene
Choose the correct answer from the options given below:
(a) (b) (c) (d)
1. (ii) (iii) (iv) (i)
2. (i) (ii) (iii) (iv)
3. (iii) (iv) (ii) (i)
4. (iv) (ii) (i) (iii)
Subtopic:  Classification - Methods of Polymerization & Copolymerization | Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 82%
Level 1: 80%+
NEET - 2022
Hints

Which statement regarding polymers is not correct?
1. Thermosetting polymers are reusable 
2. Elastomers have polymer chains held together by weak intermolecular forces 
3. Fibers possess high tensile strength
4. Thermoplastic polymers are capable of repeatedly softening and hardening on heating and cooling respectively
Subtopic:  Classification - Methods of Polymerization & Copolymerization |
 69%
Level 2: 60%+
NEET - 2022
Hints

Which one of the following polymers are prepared by addition polymerization?
1. Novolac 
2. Dacron 
3. Teflon 
4. Nylon-66 

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 68%
Level 2: 60%+
NEET - 2021
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Among the following, the monomers which give the polymer neoprene on polymerization are:

1. CH2 = CHCl
2. CCl2 = CCl2
3.
4. CF2 = CF2
Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 88%
Level 1: 80%+
AIPMT - 2003
Hints

Acrolein is hard, and a high melting point material. The structure of Acrilan among the following is:

1.
2.
3.
4.
Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 79%
Level 2: 60%+
AIPMT - 2003
Hints

Incorrect match among the following is:

1.  
2.
3.
4.
Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
Level 3: 35%-60%
AIPMT - 2001
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Cellulose is a polymer of:

1. Glucose

2. Fructose

3. Ribose

4. Sucrose

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
 85%
Level 1: 80%+
AIPMT - 2002
Hints