JEE Main Chemistry question

Not in JEE Main or NEET syllabus

The monomers of terylene are

(A)Phenol and formaldehyde
(B)Ethylene glycol and phthalic acid
(C)Adipic acid and hexamethylene diamine
(D)Ethylene glycol and terephthalic acidCorrect

Answer: (D)

Solution

Terylene (Dacron) is the condensation polymer of ethylene glycol and terephthalic acid, joined by ester linkages with loss of water. Phenol/formaldehyde gives Bakelite,

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Question ID VK-151432