Nylon-6,6 is made from two monomers each of which contains:
Correct answer: A. 6 carbon atoms.
- A. 6 carbon atoms.
- B. 6 amino groups.
- C. 6 nitrogen atoms.
- D. 6 carboxylic acid groups.
Explanation
Nylon 6,6 is made from hexamethylenediamine and adipic acid, and each monomer contains 6 carbon atoms, which is what the two sixes in its name record. Each monomer has only two functional groups, two amino groups on one and two carboxyl groups on the other, not six.
This question appeared on the UHS MDCAT 2026 paper, which you can sit online with every answer explained.
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About Polymers
Polymers are large molecules made from repeating monomer units joined by covalent bonds. The topic distinguishes addition polymers such as polyethylene, PVC and polystyrene from condensation polymers such as nylon and polyester, and relates chain structure to thermoplastics, thermosetting polymers, elastomers, properties, uses and environmental concerns.
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