Question:medium

Which of the following is a monomer of Nylon 6,6?

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The naming convention for polyamides is very helpful.
For Nylon \( x,y \), the first number \( x \) represents the number of carbons in the amine, and \( y \) represents the number of carbons in the acid.
Updated On: Apr 28, 2026
  • Caprolactam
  • Adipic acid
  • Glycine
  • Vinyl chloride
Show Solution

The Correct Option is B

Solution and Explanation

Step 1: Understanding the Concept:
Nylon 6,6 is a synthetic polymer belonging to the class of polyamides.
It is formed via a condensation polymerization reaction between a diamine and a dicarboxylic acid.
Step 2: Detailed Explanation:
The "6,6" in Nylon 6,6 refers to the fact that both monomers contain exactly 6 carbon atoms.
The two monomers used to synthesize Nylon 6,6 are Hexamethylenediamine (\( \text{H}_2\text{N}-(\text{CH}_2)_6-\text{NH}_2 \)) and Adipic acid (\( \text{HOOC}-(\text{CH}_2)_4-\text{COOH} \)).
Looking at the options provided:
(A) Caprolactam is the monomer for Nylon
6.
(B) Adipic acid is one of the correct monomers for Nylon 6,
6.
(C) Glycine is an amino acid, a monomer for proteins.
(D) Vinyl chloride is the monomer for Polyvinyl chloride (PVC).
Step 3: Final Answer:
The correct monomer from the given choices is Adipic acid.
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