Question

Which one of the following is a natural polymer?

  1. Bakelite
  2. Silk
  3. Kevlar
  4. Lexan

Answer:

Option B: Silk

Detailed Solution:

The correct answer is “Silk”.

Silk is a natural polymer. It is a protein produced by silkworms and is known for its strength, flexibility, and lustrous appearance.  

Polymer Description
Silk A natural polymer made of proteins, specifically fibroin, produced by silkworms.
Bakelite A synthetic polymer used in early plastics, made from phenol and formaldehyde.
Kevlar A synthetic polymer known for its strength and used in bulletproof vests, made from para-aramid fibers.
Lexan A brand name for polycarbonate, a synthetic polymer used in various applications like eyewear lenses and bullet-resistant glass.