Question -
Q. Which of the following is categorised as Thermosetting Plastic?
Options:
A .  PVC
B .  Nylon
C .  Acrylic
D .  Bakelite
Answer: Option D : D Explanation: Bakelite and Melamine are examples of thermosetting plastics. They are a type of plastic which when moulded once cannot be softened by heating unlike a thermoplastic. Note: A thermoplastic, or thermosoftening plastic, is a plastic polymer material that becomes pliable or moldable at a certain elevated temperature and solidifies upon cooling. Polyethylene, polypropylene, polyvinyl chloride (pvc), acrylic, nylon and Teflon are examples of thermoplastics.
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