Which of the following compounds is the least soluble in water? by Sunday | Dec 10 | Chemistry WAEC | 0 comments A. CaCl2 B. CaSO4 C. NaCl D. Na2SO4 Correct Answer: Option B B. CaSO4 Users Also Read These:The following salts are readily soluble in water except?Methanoic acid mixes with water in all proportions…In which of the following compounds does hydrogen…Which of the following organic compounds is very…Which of the following salts is slightly soluble in water?