Q. No.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
Natural rubber has:
1. All trans-configuration
2. Alternate cis - and trans-configuration
3. Random cis - and trans-configuration
4. All cis-configuration
The salient feature of biodegradable polymer is:
1. Polymer that can be decomposed.
2. Polymer that cannot be decomposed.
3. Polymer that can be denatured.
4. Polymer that cannot be denatured.
Match the polymers given in Column I with their commercial names given in Column II.
| Column I | Column II |
| A. Polyester of glycol and phthalic acid | 1. Novolac |
| B. Copolymer of 1, 3-butadiene and styrene | 2. Glyptal |
| C. Phenol and formaldehyde resin | 3. Buna-S |
| D. Copolymer of 3-butadiene and acrylonitrile | 4. Buna-N |
Codes
| A | B | C | D | |
| 1. | 2 | 3 | 1 | 4 |
| 2. | 3 | 1 | 4 | 2 |
| 3. | 2 | 4 | 3 | 1 |
| 4. | 4 | 3 | 2 | 1 |
Match the polymer of Column I with the correct monomer of Column II
| Column I | Column II |
| A. High-density polymer | 1. Isoprene |
| B. Neoprene | 2. Tetrafluoroethene |
| C. Natural rubber | 3. Chloroprene |
| D. Teflon | 4. Ethene |
Codes
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 1 | 4 | 2 |
| 3. | 4 | 3 | 1 | 2 |
| 4. | 4 | 3 | 2 | 1 |
Melamine plastic crockery is a copolymer of:
1. HCHO and melamine.
2. HCHO and ethylene.
3. Melamine and ethylene.
4. None of the above.
Polymer that is used to make non stick cookware is:
1. PVC
2. Polysterene
3. Polyethylene
4. PTFE
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