The hardness of the vulcanised rubber depends on the amount of _________ added to it.

carbon

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sulphur

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nitrogen

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oxygen

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Solution

The correct option is B sulphur
In vulcanisation process, rubber is heated with sulphur for few hours. Sulphur gives hardness to the rubber.

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Similar questions

Which of the following is not a semisynthetic polymer?

(a) cis-polyisoprene

(b) Cellulose nitrate

(d) Vulcanised rubber

373 K

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