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Q. |
In vulcanization, natural rubber is heated with- |
A. | Carbon |
B. | Sulphur |
C. | Silicon |
D. | Phosphorus |
Answer» B. Sulphur | |
Explanation: Vulcanization of rubber is a process of improvement of the rubber elasticity and strength by heating it in the presence of sulfur, which results in three-dimensional cross- linking of the chain rubber molecules(polyisoprene) bonded to each other by sulfur atoms. |
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