JAMB Biology 2015 Objective — Question 43

Question 43 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2015 Objective paper, with the correct answer and a full explanation.

In the graph, at what temperature is the solubility of KHCO₃ and NaCl the same?

• A. 35°C
• B. 42°CCorrect
• C. 37°C
• D. 18°C

Explanation

KHCO₃ and NaCl have the same solubility at the point where their solubility curves intersect, which corresponds to about 42°C.

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