Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their________________?
Correct answer: D. Magnitude of intermolecular forces
- A. Molecular sizes
- B. Polymerisation mechanism
- C. Resistance to heat
- D. Magnitude of intermolecular forces
- E. Answer: Option B
Explanation
The properties that distinguish thermoplastics, thermosets, elastomers and fibres mainly depend on the strength of intermolecular forces and the extent of cross-linking. Molecular size alone does not determine these four classes.
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