Which of the following statements is/are correct ?
a. Orlon ,chemically called polyacrylonitrile, is used as a fabric for conveyor belts and safety belts .
b. Rayon does not insulate body heat and can be used for making medical surgery products, tyre cord etc
c. Polystyrene being thermoplastic is used for making CD and Cassette boxes.
d. Bakelite is a thermosetting polymer and can be used for making jackets, bottles etc.
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polystyrene being thermoplastic is used for making CD and cassette... this statement is correct
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