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Addition of ______ results in the vulcanization of rubber.

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Addition of ______ results in the vulcanization of rubber.

(a) Nitrogen

(b) Sulfur

(c) Carbon monoxide

(d) Particulate matter

The question was posed to me during an interview.

This is a very interesting question from Types of Rubbers in division Glass & Elastomers of Engineering Material & Metallurgy

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Correct option is (b) Sulfur

The explanation is: Vulcanization is a process which increases the strength of natural rubber. It is carried out by heating a mixture of raw rubber and sulfur. The vulcanized rubber is commonly used in the manufacture of tires.

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