WAEC Chemistry 2024 Objective — Question 11
Question 11 of 50 from the West African Examinations Council (WAEC) Chemistry 2024 Objective paper, with the correct answer and a full explanation.
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11. Ethanedioic acid is an organic solid that can be purified by
- A. decantation
- B. distillation
- C. crystallizationCorrect
- D. filtration
Explanation
Oxalic (ethanedioic) acid is purified through crystallization: dissolving in hot water, then cooling, filtering, washing and drying.
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