Multiple choice

Which of the given non metals has an important activity in the vulcanization process of rubber?

  1. Sulphur

  2. Silicon

  3. Nitrogen

  4. Oxygen

  5. Zinc
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A Correct answer
Explanation

Sulphur plays an important role in the rubber industry during the process of hardening of rubber called vulcanization. Vulcanization of rubber is a process of improvement its elasticity and strength by heating it in the presence of sulphur, which results in three dimensional cross linking of the chain rubber molecules bonded to each other by sulphur atoms.

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