1.

Which of the followingare step growth as well as condensation polymer

Answer»

Nylon-66
Bakelite
Nylon-66
Buna-S

Solution :Nylon-66, Bakelite, Nylon-6 are step growth CONDENSATION polymers.
(d) Buna-S is addition copolymer of BUTADIENE and styrene, therefore it is not step growth polymer.
(a) Nylon-66 is polymer of adipic acid and HEXAMETHYLENEDIAMINE
(b) Bakelite is polymer of PHENOL and HCHO
(C) Nylon-6 is polymer of caprolactum


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