Classify into thermosetting plastic and thermoplastics on the basis of their characteristics.
(1) The plastics that are poor conductors of heat and electricity.
(2) Plastics which when moulded once, cannot be softened by heating.
(3) The plastic which gets deformed easily on heating and can be bent easily.
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a) Thermosetting plastics are used in saucepan handles because they do not soften on heating and also they cannot be bent easily. These plastics like bakelite are poor conductors of heat.
b) Thermosetting plastics are used in electric plugs/switches/plug boards as they are bad conductors of electricity. They do not get moulded. Also,they are hard and strong.
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