(i) Nylon 6:The monomer for Nylon 6 is caprolactam. Its structure is:
O || H₂N-(CH₂)₅-C-NH
(ii) Polypropene:The monomer for Polypropene (also known as polypropylene) is propene (propylene). Its structure is:
CH₃ | H₂C=CH-