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easyMCQNEET 20222026Chemistry
1 mark

Which statement regarding polymers is not correct?

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

Solution & Step-by-step Explanation

1. Elastomers have weak forces (e.g., rubber).2. Fibers have strong H-bonds/dipole-dipole forces.3. Thermoplastics can be remolded.4. Incorrect statement: Thermosetting polymers (like Bakelite) undergo extensive cross-linking upon heating and become infusible. They cannot be reused or remolded once set.

Practice this question

Try it yourself before checking the explanation above.

Which statement regarding polymers is not correct?
A
Elastomers have polymer chains held together by weak intermolecular forces.
B
Fibers possess high tensile strength.
C
Thermoplastic polymers are capable of repeatedly softening and hardening on heating and cooling respectively.
D
Thermosetting polymers are reusable.

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