Discussion
The trade name of nylon 6 is :
Answer: C
The key gives Perlon as the trade name of nylon 6.
Perlon is the German trade name for nylon 6 (polycaprolactam, made from caprolactam), and it is the name textbooks and trade-name lists give for it. Nylon 6,6, made from hexamethylenediamine and adipic acid, is the other common nylon and is a different polymer.
Nylfrance and ICI-nylon were not found in the lists of nylon 6 trade names consulted, so they are not taken as nylon 6 names here.
Amilan, a Toray brand, is a weaker candidate. It is a brand name covering several polyamide grades, nylon 6 among them, so a reader could argue for it. Perlon is the standard answer and is the one the key accepts.
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