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in Chemistry by (32.3k points)

What are the steps during polymerisation to form terylene?

(a) Terephthalic acid is condensed with ethylene glycol at 420 K-460 K. 

(b) Ethylene glycol displaces methanol to form dihydroxy diethyl terephthalic acid 

(c) Zinc acetate – antimony trioxide is used as catalyst 

(d) All of these

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