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WAEC 2025

Iodine could be separated from the mixture of iodine and Calcium chloride by

  1. AEvaporation
  2. BSublimation
  3. Cfractional distillation
  4. Dfractional crystallization

Explanation

Iodine readily sublimes (changes directly from solid to gas upon heating) while calcium chloride does not. Therefore, sublimation is the ideal method to separate iodine from the mixture.

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