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

[amp_mcq option1=”hexamethylenediamine and adipic acid” option2=”caprolactam” option3=”urea and formaldehyde” option4=”phenol and formaldehyde” correct=”option2″]

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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