Question

— and— are the monomers used for preparing trylene.​

Answer 1

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The monomers of the terylene are the ethylene glycol (1,2 ethanediol) and Terephthalic acid (1,4 benzene dicarboxylic acid). ... Terylene is a synthetic polyester fibre produced by polymerizing ethylene glycol and terephthelic acid which is obtained from petroleum.