For the formation of terylene,the number of m | vedclass

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(A) Terylene (also known as Dacron) is a condensation polymer formed by the reaction between ethylene glycol $(HO-CH_2-CH_2-OH)$ and terephthalic acid

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(A) Terylene (also known as Dacron) is a condensation polymer formed by the reaction between ethylene glycol $(HO-CH_2-CH_2-OH)$ and terephthalic acid $(C_6H_4(COOH)_2)$.The polymerization reaction is represented as:$n \ HO-CH_2-CH_2-OH + n \ HOOC-C_6H_4-COOH \rightarrow -[O-CH_2-CH_2-O-CO-C_6H_4-CO]_n- + 2n \ H_2O$From the stoichiometry of the reaction,$n$ moles of ethylene glycol react with $n$ moles of terephthalic acid.Therefore,for $1$ mole of terephthalic acid,$1$ mole of ethylene glycol is required.

For the formation of terylene,the number of moles of ethylene glycol required per mole of terephthalic acid is

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