Question:
Identify a monomer used to prepare nylon 6,6 along with hexamethylene-diamine.
Identify a monomer used to prepare nylon 6,6 along with hexamethylene-diamine.
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Nylon 6,6 is a condensation polymer of a six-carbon diamine and a six-carbon diacid.
Updated On: Nov 12, 2026
- adipic acid
- picric acid
- phthalic acid
- terephthalic acid
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Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept
Nylon 6,6 is a polyamide formed by condensation polymerisation.
The two 6's show that both monomers have six carbon atoms.
Step 2: Monomers
One monomer is hexamethylenediamine, \(\text{H}_{2}\text{N(CH}_{2}\text{)}_{6}\text{NH}_{2}\).
The other is adipic acid, \(\text{HOOC(CH}_{2}\text{)}_{4}\text{COOH}\), which is a six-carbon dicarboxylic acid.
Step 3: Compare the options
Picric acid is trinitrophenol, phthalic acid is a benzene dicarboxylic acid, and terephthalic acid is used for terylene (polyester).
Final Answer:
The second monomer is adipic acid, option (A). \[ \boxed{\text{(A) }\text{adipic acid}} \]
Nylon 6,6 is a polyamide formed by condensation polymerisation.
The two 6's show that both monomers have six carbon atoms.
Step 2: Monomers
One monomer is hexamethylenediamine, \(\text{H}_{2}\text{N(CH}_{2}\text{)}_{6}\text{NH}_{2}\).
The other is adipic acid, \(\text{HOOC(CH}_{2}\text{)}_{4}\text{COOH}\), which is a six-carbon dicarboxylic acid.
Step 3: Compare the options
Picric acid is trinitrophenol, phthalic acid is a benzene dicarboxylic acid, and terephthalic acid is used for terylene (polyester).
Final Answer:
The second monomer is adipic acid, option (A). \[ \boxed{\text{(A) }\text{adipic acid}} \]
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