Give an example of polyester used as a synthetic fibre

(i) Give an example of polyester used as a synthetic fibre.
(ii) Name the compounds from which polyester is prepared.
(iii) What type of polymerisation takes place during the formation of the polyester from these compounds?

(i) Terylene is a polyester which is used as a synthetic fibre.
(ii) It is a condensation polymer of ethylene glycol and terephthalic acid

(iii) Condensation polymerisation takes place during the formation of the polyester from terephthalic acid and ethylene