JEE Main · 2022 · 28 Jul 2022 · Shift 1 · Polymers

Terylene polymer is obtained by condensation of:

(A)Ethane-1, 2-diol and Benzene-1, 3 dicarboxylic acid
(B)Propane-1, 2-diol and Benzene-1, 4 dicarboxylic acid
(C)Ethane-1, 2-diol and Benzene-1, 4 dicarboxylic acid✓ Correct
(D)Ethane-1, 2-diol and Benzene-1, 2 dicarboxylic acid

Answer: (C)

Solution

Terylene (also known as Dacron or polyethylene terephthalate, PET) is a polyester formed by the condensation polymerization of ethane-1,2-diol (ethylene glycol) and benzene-1,4-dicarboxylic acid (terephthalic acid). The 1,4-positioning of the carboxylic acid groups on the benzene ring is essential for the linear polymer structure.

JEE Main · 2022 · 28 Jul 2022 · Shift 1 · Single correct option

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