In vulcanisation, natural rubber is heated with A. Carbon B. Silicon C. Sulphur D. Phosphorous

The correct answer is C. Sulphur.

Vulcanization is a chemical process that converts natural rubber into a more durable material. It is achieved by heating natural rubber with sulfur. The sulfur reacts with the rubber molecules to form cross-links, which make the rubber stronger and more resistant to wear and tear.

Carbon, silicon, and phosphorus are not used in vulcanization. Carbon is a non-metal that is found in coal, diamonds, and graphite.

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