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Q. |
The element used for vulcanizing rubber is - |
A. | Sulphur |
B. | Bromine |
C. | Silicon |
D. | Phosphorus |
Answer» A. Sulphur | |
Explanation: The vulcanization of neoprene or polychloroprene rubber (CR rubber) is carried out using metal oxides (specifically MgO and ZnO, sometimes Pb3O4) rather than sulfur compounds which are presently used with many natural and synthetic rubbers. |
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