The amide linkage in Nylon-6,6 has the structure:
Correct answer: C. -NH-CO-
- A. -NH2-CO-
- B. -CO-O-
- C. -NH-CO-
- D. -NH-O-CO-
Explanation
Amide linkage is a covalent bond between COOH and NH2 of the amino acid. The linkage is CONH and a water molecule is eliminated.
This question appeared on the UHS MDCAT 2017 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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