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Q. No.Which among the following is a thermoplastic polymer?
1. Bakelite
2. Polythene
3. Urea-formaldehyde resin
4. Melamine polymer
Subtopic: Â Classification - Methods of Polymerization & Copolymerization |
 68%
From NCERT
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 |
| (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 |
 83%
From NCERT
NEET - 2022
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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 |
 71%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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Subtopic: Â Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 61%
From NCERT
NEET - 2023
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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 false.
2. Statement-I is incorrect but Statement-II is true.
3. Both Statement-I and Statement- II are true.
4. Both Statement-I and Statement-II are false.
| I: | High density polythene is formed in the presence of catalyst triethylaluminium and titanium tetrachloride. |
| 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 false.
2. Statement-I is incorrect but Statement-II is true.
3. Both Statement-I and Statement- II are true.
4. Both Statement-I and Statement-II are false.
Subtopic: Â Classification - Methods of Polymerization & Copolymerization |
 62%
From NCERT
NEET - 2023
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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%
From NCERT
NEET - 2021
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NEET 2023 - Target Batch - Aryan Raj Singh
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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: Â Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 89%
From NCERT
AIPMT - 2003
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Acrolein is hard, and a high melting point material. The structure of Acrilan among the following is:
| 1. |  |
| 2. |  |
| 3. |  |
| 4. |  |
Subtopic: Â Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 80%
From NCERT
AIPMT - 2003
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Subtopic: Â Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
From NCERT
AIPMT - 2001
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NEET 2023 - Target Batch - Aryan Raj Singh
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Subtopic: Â Classification - Methods of Polymerization & Copolymerization |
 86%
From NCERT
AIPMT - 2002
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NEET 2023 - Target Batch - Aryan Raj Singh
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