Which of the following aqueous salt solutions is basic (pH > 7) due to hydrolysis?

Answer and explanation

Correct answer: A. Sodium acetate (CH₃COONa)

  1. Step 1: is a salt of a weak acid (acetic acid) and strong base (). Step 2. The acetate ion hydrolyzes: , producing excess hydroxide ions. Answer: Sodium acetate (CH₃COONa). Why not the others: is acidic (salt of weak base + strong acid); and are neutral.

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