The monomer/monomers used for the synthesis of Nylon 6 is/are

hexamethylenediamine and adipic acid

caprolactam

urea and formaldehyde

phenol and formaldehyde

Answer is Right!

Answer is Wrong!

This question was previously asked in

UPSC CDS-1 – 2019

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The correct option is B.

Nylon 6 is synthesized through the ring-opening polymerization of caprolactam. Caprolactam is a cyclic amide (lactam) with six carbon atoms. Upon heating, the ring opens, and the linear molecules polymerize.

Option A, hexamethylenediamine and adipic acid, are the monomers for Nylon 6,6, which is formed by condensation polymerization. Option C, urea and formaldehyde, react to form urea-formaldehyde resin. Option D, phenol and formaldehyde, react to form phenol-formaldehyde resin (Bakelite).

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