Which of the following statements about polyamides is/are false? (A) PA 6/66 is made from caprolactam, hexamethylenediamine and adipic acid. (B) PA 6I is an amorphous polymer and made from the polymerisation of hexamethylenediamine and isosebacic acid. (C) Trogamid from Solvay industries is an aliphatic polyamide.

(A) PA 6/66 (nylon 6/66) is a copolymer and is made from caprolactam, hexamethylenediamine and adipic acid. (B) PA 6I (nylon 6I) is an amorphous polymer, made from the polymerisation of hexamethylenediamine and isophthalic acid. PA 66/610 (nylon 66/610) is made from hexamethylenediamine, adipic acid and sebacic acid. (C) Amodel from Solvay industries and Trogamid from Evonik Industries are semi-aromatic polyamide and is made from the polymerisation of hexamethylenediamine and terephthalic acid. Hence, B and C both the statements are false.