Question:
During Vulcanization of raw rubber, the chemical added to it is
During Vulcanization of raw rubber, the chemical added to it is
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Think of Sulphur as the "staple" that holds the slippery rubber chains together.
Updated On: May 5, 2026
- Sulphur
- Phosphorus
- Iodine
- Sodium
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The Correct Option is A
Solution and Explanation
Step 1: Concept Vulcanization is a chemical process for converting natural rubber into more durable materials.
Step 2: Meaning Raw rubber is soft, sticky, and has low tensile strength; it needs cross-linking to improve these properties.
Step 3: Analysis Heating raw rubber with Sulphur (usually 1-5%) creates cross-links between the polymer chains.
Step 4: Conclusion This cross-linking significantly increases the elasticity, strength, and thermal stability of the rubber.
Final Answer: (A)
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