Classification – Natural vs synthetic fibres: identify the odd one out. Three are natural fibres; one is synthetic (man-made). Which option is different? Options: Cotton, Nylon, Silk, Linen.

Introduction / Context:
Textile classification regularly contrasts natural fibres with synthetics. Recognizing the origin of each fibre isolates the exception.

Given Data / Assumptions:

• Cotton: natural plant fibre.
• Silk: natural animal fibre.
• Linen: natural plant fibre (flax).
• Nylon: synthetic polymer fibre.

Concept / Approach:
Group by origin: natural vs synthetic/man-made.

Step-by-Step Solution:
Identify Cotton/Silk/Linen as natural.Identify Nylon as synthetic.Hence Nylon is the odd one out.

Verification / Alternative check:
Check standard textile references; nylon is a petrochemical-derived polyamide, unlike the others.

Why Other Options Are Wrong:
Cotton/Silk/Linen: All are natural fibres and belong to the majority class.

Common Pitfalls:
Confusing “rayon” (semi-synthetic) with true natural fibres; nylon is fully synthetic.

Final Answer:
Nylon