Q. Which of the following statements is false?
A) Both starch and cellulose are polymers of glucose
B) Artificial silk is derived from cellulose
C) Nylon-66 is an example of elastomer
D) The repeat unit in natural rubber is isoprene
Explanation
[Solution from source] Nylon-66 is a polyamide fibre with strong hydrogen bonding between chains, not an elastomer (rubber-like polymer). The other statements are correct: starch and cellulose are glucose polymers, rayon (artificial silk) is regenerated cellulose, and natural rubber is a polymer of isoprene. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.