Question: are chlorides acidic or basic?
Answer: In terms of its acid–base properties, chloride is a very weak base as indicated by the negative value of the pKa of hydrochloric acid. Chloride can be protonated by strong acids, such as sulfuric acid: NaCl + H2SO4 → NaHSO4 + HCl. Ionic chloride salts reaction with other salts to exchange anions.