Q97 / 200 · NEET 2022 (Phase 1) · Chemistry

Which statement regarding polymers is not correct?
 

  • A
    Fibers possess high tensile strength.
     
  • B
    Thermoplastic polymers are capable of repeatedly softening and hardening on heating and cooling respectively.
     
  • Correct answer
    C
    Thermosetting polymers are reusable.
     
  • D
    Elastomers have polymer chains held together by weak intermolecular forces.

Solution

 A thermosetting polymer, often called a thermoset, is a polymer that is obtained by irreversibly hardening a soft solid or viscous liquid prepolymer.

They can't be reused.

Thermoplastic polymers are capable of repeatedly softening and hardening on heating and cooling respectively.They can be re-used.

Fibres have high tensile strength.

Elastomers have polymer chains held together by weak intermolecular forces, they have high elasticity.

Hence, option C is the correct answer.
 

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

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