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State PCS PYQPrelims 2024

BPSC – Combined Competitive Examination · Question 51

Melamine, used for making floor tiles, is an example of:

  1. Polythene
  2. Thermoplastics
  3. PVC
  4. Thermosetting plastic
Show answer & explanation

Answer: (D) Thermosetting plastic

Explanation

Melamine and Bakelite are thermosetting plastics; they cannot be remoulded once set.

  • (A) Incorrect

    Wrong: polythene is a thermoplastic.

  • (B) Incorrect

    Wrong: melamine does not soften on reheating.

  • (C) Incorrect

    Wrong: PVC is a thermoplastic.

  • (D) Correct

    Correct: melamine sets permanently on heating and resists heat and fire.