WAEC Chemistry 2025 Theory — Question 38
Question 38 of 70 from the West African Examinations Council (WAEC) Chemistry 2025 Theory paper, with the correct answer and a full explanation.
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3(d)(iii). Name the element that is added to natural rubber to improve its quality.
Model answer
Sulphur (added in the vulcanization process, which forms cross-links between the rubber's molecules for improved strength, toughness and durability).
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