9
Q:
| A) Chlorine | B) Sulphur |
| C) Sponge | D) Polythene |
Answer: B) Sulphur
Explanation:
Explanation:
Sulfur vulcanisation is a chemical process for converting natural rubber or related polymers into more durable materials by heating them with sulfur. By this they achieve improved elasticity, resilience, tensile strength, viscosity, hardness and weather resistance.
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