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JEE Main · 2022 · 26 Jun 2022 · Shift 1 · Polymers

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Which of the following sets are correct regarding polymer ?
(A) Copolymer : Buna-S
(B) Condensation polymer : Nylon-6,6
(C) Fibre : Nylon-6,6
(D) Thermosetting polymer : Terylene
(E) Homopolymer : Buna-N

Choose the correct answer from given options below:
  1. (A)(A), (B) and (C) are correct✓ Correct
  2. (B)(B), (C) and (D) are correct
  3. (C)(A), (C) and (E) are correct
  4. (D)(A), (B) and (D) are correct

Answer: (A)

Solution

Statement (A) is correct: Buna-S is a copolymer of butadiene and styrene. Statement (B) is correct: Nylon-6,6 is a condensation polymer formed from adipic acid and hexamethylenediamine. Statement (C) is correct: Nylon-6,6 is used as a synthetic fibre. Statement (D) is incorrect: Terylene (polyester) is a fibre, not a thermosetting polymer; it is a thermoplastic. Statement (E) is incorrect: Buna-N is a copolymer of butadiene and acrylonitrile, not a homopolymer. Therefore, (A), (B), and (C) are correct.

JEE Main · 2022 · 26 Jun 2022 · Shift 1 · Single correct option

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