JAMB Chemistry 2023 Objective — Question 5

Question 5 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2023 Objective paper, with the correct answer and a full explanation.

The respective basicities of HNO₃, HCl, CH₃COOH and H₂SO₄ are

A. 1, 1, 4 & 2
B. 1, 1, 3 & 2
C. 1, 1, 1 & 2Correct
D. 1, 1, 3 & 1

Explanation

Basicity = number of replaceable H⁺ ions per molecule. HNO₃ = 1, HCl = 1, CH₃COOH = 1 (only the –COOH proton), H₂SO₄ = 2.

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