Discussion
Nylon-6,6 is formed by condensation of adipic acid with
Answer: C
Correct answer: hexamethylenediamine
Nylon-6,6 condenses adipic acid, a six-carbon diacid, with hexamethylenediamine, a six-carbon diamine - hence the two sixes in the name. Each condensation eliminates a molecule of water and forms an amide linkage. The regular chain and the hydrogen bonding between the amide groups give the crystallinity and the strength that make it a fibre.
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