JEE Main · 2022 · 29 Jun 2022 · Shift 1 · Polymers

The polymer, which can be stretched and retains its original status on releasing the force is

(A)Bakelite
(B)Nylon 6,6
(C)Buna-N✓ Correct
(D)Terylene

Answer: (C)

Solution

The property described is elasticity, characteristic of elastomers (synthetic rubbers). Buna-N is a synthetic rubber (copolymer of butadiene and acrylonitrile) that exhibits elastic behavior—it can be stretched and returns to its original shape upon release of force. Bakelite is a thermosetting plastic (rigid), Nylon 6,6 is a fiber (not elastic), and Terylene is also a fiber. The answer is (C).

JEE Main · 2022 · 29 Jun 2022 · Shift 1 · Single correct option

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