Question

Vulcanised rubber resists:

• A. wear and tear due to friction
• B. cryogenic temperature
• C. high temperature
• D. action of acids

Answer 1

Answer: (A), (D)

The correct options are
A wear and tear due to friction
D action of acids

Vulcanization (or vulcanisation) is a chemical process for converting natural rubber or related polymers into more durable materials via the addition of sulfur or other equivalent curatives or acceleraters.
Vulcanized rubber has come to be used to make a wide variety of products. Among the most common of these are automobile tires, rubber seals and gaskets, transmission belts, shoe soles and hockey pucks. The Goodyear Tire and Rubber Company, a well-known manufacturer of automobile tires and other rubber products. Vulcanized rubber resists from acid rains.
Hence, options A and D are correct.