WAEC Chemistry 2015 Objective — Question 32
Question 32 of 50 from the West African Examinations Council (WAEC) Chemistry 2015 Objective paper, with the correct answer and a full explanation.
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Which of the following compounds is the least soluble in water?
- A. CaCl₂
- B. CaSO₄Correct
- C. NaCl
- D. Na₂SO₄
Explanation
CaCl₂, NaCl and Na₂SO₄ are all very soluble in water, while CaSO₄ is only sparingly soluble.
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