The correct option is (a) NaHS, KHCO3 and NaF
NaHS, KHCO3 and NaF will form an aqueous solution of form basic.
<h3>What is
aqueous solution?</h3>
A solution in which water serves as the solvent is called an aqueous solution. The most common way to display it in chemical equations is by adding to the appropriate chemical formula. For instance, the symbol for a solution of table salt, or sodium chloride, in water is Na+ + Cl.
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