General Science • ChemistryHard
Match the polymer classes in List I with their representative examples in List II and select the correct matching code: List I (Polymer Class) 1. Elastomer 2. Fiber 3. Thermoplastic 4. Thermosetting Polymer List II (Example) 1. Vulcanized Rubber 2. Nylon 6,6 3. Polyvinyl Chloride 4. Bakelite
A. 1-1, 2-2, 3-3, 4-4✓ Correct Answer
B. 1-2, 2-1, 3-4, 4-3
C. 1-1, 2-3, 3-2, 4-4
D. 1-4, 2-2, 3-1, 4-3
💡 Solution & Explanation
Elastomers are rubbery polymers with elastic cross-links like vulcanized rubber that stretch and recover. Fibers are thread-forming polymers with strong hydrogen bonding such as nylon 6,6. Thermoplastics soften upon heating and harden upon cooling, exemplified by polyvinyl chloride. Thermosetting polymers undergo irreversible cross-linking during molding and decompose rather than melt upon reheating, such as Bakelite.
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