Natural rubber is heated with an element X to make it hard, strong and more elastic. X is:

zinc

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sulphur

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lead

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H_{2}

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Solution

The correct option is C sulphur
Natural Rubber is heated in the presence of sulphur. This produces cross-linking and leads to a harder material that is markedly more resistant to heat and relatively more elastic. This process is called vulcanization.

Option B is correct.

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Similar questions

Vulcanization makes rubber ........

(a) more elastic

(b) soluble inorganic solvent

(d) more stiff

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