(A) Conductor
(B) Insulator
(C) Semiconductor
(D) None of these
🧠 Explanation:
Bakelite is classified as a **thermosetting plastic**. It is a synthetic polymer made from phenol and formaldehyde through a condensation reaction. Once molded and hardened, Bakelite cannot be remelted or reshaped because its chemical structure forms strong cross-linked bonds. This property makes it heat-resistant, durable, and a good electrical insulator. Due to these characteristics, Bakelite became widely used in electrical fittings, radio and telephone casings, kitchenware handles, and various industrial products during the early to mid-20th century. Its invention marked a significant milestone in the development of plastics, paving the way for the modern plastics industry and large-scale synthetic material production.
