Question

NCERT question synthetic fibres and plastics chapter 3 class 8 explain why the following are made of thermosetting plastics saucepan handles electric plugs switches plug boards
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Answer 1

• Saucepan handles are made of thermosetting plastic bcoz these plastic do not get softened on heating .Also thermosetting plastic such as bakelite are poor conductors of heat .
• Thermosetting plastic such as bakelite are poor conductors of heat and electricity. Therefore, they are used for making electric plugs ,switches ,plug boards etc.

Answer 2

Answer:

A.Saucepan handles are made of thermosetting plastics because these plastics do not get softened on heating.

B.Thermosetting plastics such as bakelite are poor conductors of heat and electricity. Therefore, they are used for making electric plugs, switches, plug boards, etc.