Question:easy

Bakelite is an example of

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Think of the difference like an egg versus chocolate. A thermoplastic (chocolate) can be melted and solidified repeatedly. A thermosetting plastic (egg) undergoes a chemical change when "cooked" (heated) and cannot be returned to its original liquid state.
Updated On: Jul 1, 2026
  • Thermoplastic Polymer
  • Elastomer
  • Fibre
  • Thermosetting polymer
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The Correct Option is D

Solution and Explanation

1. Nature of Bakelite: Bakelite is one of the oldest synthetic polymers, chemically known as polyoxybenzylmethylenglycolanhydride. It is formed by the condensation reaction of phenol with formaldehyde.

2. Classification as Thermosetting: A thermosetting polymer is a material that undergoes a chemical change during molding under heat and pressure, becoming permanently hard and infusible.

3. Structural Reason: The key characteristic of Bakelite is its

extensive cross-linking. During the heating process in the mold, covalent bonds form between polymer chains, creating a rigid three-dimensional network.
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