Caprolactam is the starting material for

The correct answer is Option (2) → Nylon 6

Nylon 6 is obtained by heating caprolactam with water at a high temperature. The ring opens and the units join through amide links:

    n Caprolactam \( \xrightarrow[\text{533-543 K}]{\text{H}_2\text{O}} \) –[NH–(CH₂)₅–CO]_n– (Nylon 6)

The name records the six carbon atoms in the repeating unit, all coming from one monomer.

Note: This question is from the pre-rationalised NCERT book (2022-23). The topic is not there in the latest NCERT book (2026-27), and it is also out of the CUET 2026 syllabus.

NCERT (Pre-rationalised edition, 2022-23):
Polyamides – …