Which of the following does not form an acidic salt? (a) Phosphoric acid (b) Carbonic acid (c) Hydrochloric acid (d) Sulphuric acid
option B. The correct option is B or Carbonic acid. Carbonic acid, with the chemical formula H2CO3, is a carbon-containing compound. This compound is found in small amounts of carbon dioxide solutions in water. As it is a weak acid, it doesn't form acidic salts.