The correct answer is C. Ethylene glycol and terephthalic acid.
Dacron is a polyester that is made from the monomers ethylene glycol and terephthalic acid. These monomers are reacted together to form a polymer called polyethylene terephthalate (PET). PET is a strong, lightweight material that is used to make a variety of products, including clothing, bottles, and films.
Decane and decanol are both alkanes, which are hydrocarbons that have only carbon and hydrogen atoms. They are not monomers of dacron.
Decanone and decanol are both ketones, which are organic compounds that have a carbonyl group (C=O) attached to two carbon atoms. They are not monomers of dacron.
Ethylene glycol and phthalic acid are both monomers of dacron. Ethylene glycol is a colorless, flammable
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