Multiple choice

Which of the following sets represents copolymers only?

  1. Glyptal, Buna-S, Nylon 66, Dacron

  2. Polystyrene, Neoprene, Nylon 6, Dacron

  3. Buna-S, Neoprene, Glyptal, Nylon 6

  4. Buna-S, Dacron, Nylon 6, Nylon 66

  5. Neoprene, Glyptal, Nylon 66, Polystyrene
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A Correct answer
Explanation

Glyptal is a copolymer of ethylene glycol and phthalic acid. Buna S is a copolymer of 1,3-butadiene and styrene. Nylon 66 is a copolymer of hexamethylene diamine and adipic acid. Dacron is a copolymer of ethylene glycol and terephthalic acid.

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