WAEC Chemistry 2011 Objective — Question 7
Question 7 of 50 from the West African Examinations Council (WAEC) Chemistry 2011 Objective paper, with the correct answer and a full explanation.
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Which of the following elements would produce coloured ions in aqueous solution?
- A. A. Calcium
- B. B. IronCorrect
- C. C. Magnesium
- D. D. Sodium
Explanation
Formation of coloured ions is a feature that transition elements are known for. Iron is a transition element.
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