Which of the following compounds is a basic salt?

Assessment: WAEC SSCE - Chemistry - 2007 (Objective) Subject: Chemistry

Question 1 Report

Which of the following compounds is a basic salt?
Answer Details
A basic salt is a salt that contains a metal cation and the conjugate base of a weak acid. The conjugate base of the weak acid behaves as a base and hence the salt shows basic properties. Among the given options, Zn(OH)CI is the only compound that can be a basic salt. It contains the metal ion zinc (Zn) and the anion of a weak acid, hydroxide (OH-). The hydroxide ion can act as a base and accept a proton from water molecules, increasing the concentration of hydroxide ions in solution and making the solution basic. Therefore, the correct answer is Zn(OH)CI.
Read lesson note on Acids, Bases And Salts (JAMB)
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