Question

The amide linkage is NOT present in:

• A. Wool
• B. Aramid
• C. Lyocell
• D. Nylon 66

Hint:

- Amide linkages are characteristic of proteins and polyamides. They are not present in cellulose-based fibers like Lyocell.

Answer 1

The Correct Option is C

- Wool is a natural polymer consisting of proteins, and the amide linkage is present in the peptide bonds of the protein structure.
- Aramid is a synthetic fiber made from polyamides, and it contains amide linkages.
- Lyocell is a cellulose-based fiber made by dissolving wood pulp, and it does not contain amide linkages.
- Nylon 66 is a synthetic polymer made from diamines and dicarboxylic acids, and it contains amide linkages.
Thus, the correct answer is (C) Lyocell.