JAMB Chemistry 2012 Objective — Question 20
Question 20 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2012 Objective paper, with the correct answer and a full explanation.
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The number of hydroxonium ions produced by one molecule of an acid in aqueous solution is its
- A. basicityCorrect
- B. acid strength
- C. pH
- D. concentration
Explanation
The basicity of an acid is defined as the number of hydroxonium (H3O⁺) ions that can be produced by one molecule of the acid in aqueous solution. HCl, H2SO4 and H3PO4 have basicity of 1, 2, and 3 respectively.
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