Which of the following pairs is not correctly matched?
(1) Terylene - condensation polymer of terephthalic acid and ethylene glycol
(2) Teflon - thermally stable cross linked polymer of phenol and formaldehyde
(3) Perspex - a homopolymer of methyl methacrylate
(4) Synthetic rubber - a copolymer of butadiene and styyrene.
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2.it is a homopolymer of tetrafluroethene
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