Multiple choice

Which amongst the following is not the property characterized by vulcanized rubber?

  1. It does no melt upon heating

  2. It is resistant to chemical attack

  3. It is an insoluble thermoset polymer

  4. It possesses weak covalent bonds

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vulcanized rubber is a thermoset polymer that does NOT melt upon heating, is highly resistant to chemical attack, and is insoluble. However, vulcanization creates STRONG covalent cross-links (sulfur bridges) between polymer chains, not weak covalent bonds. This cross-linking is what gives it its thermoset properties.