What salts are hydrolyzed? Why?

Salt hydrolysis is a reaction in which one of the ions from the salt reacts with water to form either an acidic or a basic solution. For example, when solid sodium fluoride dissolves in water, it completely dissociates into sodium ions and fluoride ions. Sodium ions do not have the ability to hydrolyze, but fluoride ions are hydrolyzed to form a small amount of hydrofluoric acid and hydroxide ions. Salts derived from neutralizing a weak acid (HF) with a strong base (NaOH) will always produce basic salt solutions.