Question map
The monomer/monomers used for the synthesis of Nylon 6 is /are
Explanation
Nylon 6 is a synthetic polyamide polymer produced through the ring-opening polymerization of a single monomer called caprolactam [1]. Unlike Nylon 6,6, which is synthesized from two distinct monomers—hexamethylenediamine and adipic acid—Nylon 6 is derived from the cyclic amide ̥-caprolactam [1]. When caprolactam is heated, the ring structure opens and links together to form a long-chain polymer. The name 'Nylon 6' refers to the six carbon atoms present in the caprolactam monomer. Other options provided refer to different polymers: urea and formaldehyde are monomers for urea-formaldehyde resins, while phenol and formaldehyde are the building blocks for Bakelite [1]. Therefore, caprolactam is the specific monomer used for the synthesis of Nylon 6.