I: | High density polythene is formed in the presence of catalyst triethylaluminium and titanium tetrachloride. |
II: | High density polymers are chemically inert. |
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 |
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) |
A biodegradable polymer that can be prepared from glycine and aminocaproic acid is:
1. Nylon 2-nylon 6
2. PHBV
3. Buna-N
4. Nylon-6,6
The example of a thermosetting polymer among the following options is:
1. | |
2. | |
3. | |
4. |
Which is the monomer of Neoprene in the following?
1. | 2. | ||
3. | \(CH_2=CH-C\equiv H\) | 4. | \(CH_2=CH-C=CH_2\) |
Nylon is an example of:
1. Polysaccharide
2. Polyamide
3. Polythene
4. Polyester
Which one of the following is not a condensation polymer?
1. Melamine
2. Glyptal
3. Dacron
4. Neoprene
The polymer that can be classified as polyster polymer is:
1. Bakelite
2. Melamine
3. Nylon-66
4. Terylene