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Q. No.
Subtopic: Â Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 58%
Level 3: 35%-60%
NEET - 2023
Hints
Given below are two statements:
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.
| 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: Â Classification - Methods of Polymerization & Copolymerization |
 60%
Level 2: 60%+
NEET - 2023
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: Â Classification - Methods of Polymerization & Copolymerization |
 69%
Level 2: 60%+
NEET - 2022
Hints
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 |
| (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: Â Classification - Methods of Polymerization & Copolymerization |Â Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 82%
Level 1: 80%+
NEET - 2022
Hints
Which among the following is a thermoplastic polymer?
1. Bakelite
2. Polythene
3. Urea-formaldehyde resin
4. Melamine polymer
1. Bakelite
2. Polythene
3. Urea-formaldehyde resin
4. Melamine polymer
Subtopic: Â Classification - Methods of Polymerization & Copolymerization |
 67%
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: Â Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 68%
Level 2: 60%+
NEET - 2021
Hints
The natural polymer among the following options is:
1. Poly(Butadiene-styrene)
2. Polybutadiene
3. Poly(Butadiene-acrylonitrile)
4. Cis-1,4-polyisoprene
Subtopic: Â Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 78%
Level 2: 60%+
NEET - 2020
Hints
The correct statement regarding Bakelite is :
1. It is a cross linked polymer.
2. It is an additional polymer.
3. It is a branched chain polymer.
4. It is a linear polymer.
Subtopic: Â Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 73%
Level 2: 60%+
NEET - 2020
Hints
Subtopic: Â Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 76%
Level 2: 60%+
NEET - 2019
Hints
The polymer that is used as a substitute for wool in making commercial fibres is -
1. Melamine
2. Nylon-6, 6
3. Polyacrylonitrile
4. Buna-N
Subtopic: Â Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 65%
Level 2: 60%+
NEET - 2019
Hints
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