Q10 / 50 · Manipal (MET) 2022 · Chemistry

Polystyrene is a ______ polymer whereas dacron is a _____ polymer.

  • A
    step growth, chain growth
  • Correct answer
    B
    chain growth, step growth
  • C
    condensation, addition
  • D
    thermoplastic, thermosetting

Solution

Figure
Polystyrene is an addition and chain growth polymer. It is thermoplastic. Addition polymers have unsaturated monomers. Figure
Dacron is a condensation and step-growth polymer. It is a fibre. Condensation polymerisation involves a repetitive condensation reaction between two bi-functional or tri-functional monomeric units.

Hence, the correct answer is option: 'B'.

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