Chemistry - Polymer Question with Solution | TestHub

Bakelite is a condensation polymer of phenol and formaldehyde, which contains carbon, hydrogen, and oxygen.

Dacron (polyethylene terephthalate) is a polyester formed from ethylene glycol and terephthalic acid, containing carbon, hydrogen, and oxygen.

Rubber (natural rubber is polyisoprene) is a hydrocarbon polymer containing only carbon and hydrogen.

Nylon-6,6 is a polyamide formed by the condensation of hexamethylenediamine and adipic acid. The presence of the amide linkage ($-CO-NH-$) means it contains nitrogen.

Answer: Nylon-6,6