JAMB Chemistry 2010 Objective — Question 21

Question 21 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2010 Objective paper, with the correct answer and a full explanation.

21. Which of the following salts is slightly soluble in water? A. Na2CO3 B. PbCl2 C. AgCl D. CaSO4

A. Na2CO3
B. PbCl2Correct
C. AgCl
D. CaSO4

Explanation

PbCl2 is insoluble in cold water but slightly soluble in hot water, while AgCl is insoluble in water and CaSO4 is only sparingly soluble.

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