Answer:HDPE
Answer: Adipic acid and hexamethylene diamine
Answer:Low water absorption, resistance to oxidation and good elasticity
Answer:Elastomer < Plastic < Fibre
Answer:(i) Homopolymer, (ii) Copolymer
Answer:Polythene, polystyrene, polyvinyls
Answer:adipic acid and hexamethylenediamine
Answer:dimethyl terephthalate