Q.

Teryleneisa condensation polymer of ethylene glycol and which acid?

A. Benzoic Acid
B. Salicylic acid
C. Phthalic acid
D. Terephthalic acid
Answer» D. Terephthalic acid
Explanation: Terylene is a co-polymer of ethylene glycol and Terephthalic acid. Also known as Dacron, it is prepared by the condensation polymerization of ethylene glycerol and. Terephthalic acid with elimination of water. The reaction is carried out at about 420- 460 K in the presence of a catalyst consisting of a mixture of zinc acetate and antimony trioxide.
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