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JAMB Chemistry 2011 Objective — Question 21

Question 21 of 49 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2011 Objective paper, with the correct answer and a full explanation.

Which of the following is a deliquescent compound?

A. A. Na2CO3.10H2O
B. B. Na2CO3
C. C. CaCl2Correct
D. D. CuO

Explanation

CaCl2 is deliquescent. Na2CO3.10H2O is efflorescent, while CuO is hygroscopic.

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