Which of the following does not form an acidic salt?(A) Phosphoric acid(B) Carbonic acid(C) Hydrochloric acid(D) Sulphuric acid
An acidic salt is formed when a weak acid reacts with a strong base. In this case, we need to identify the weak acid among the options.
(A) Phosphoric acid (H3PO4) is a weak acid.
(B) Carbonic acid (H2CO3) is also a weak acid.
(C) Hydrochloric acid (HCl) is a strong acid.
(D) Sulphuric acid (H2SO4) is a strong acid.
So, the weak acids are phosphoric acid and carbonic acid. Therefore, the correct answer is (C) Hydrochloric acid because it is a strong acid and does not form acidic salts when reacting with strong bases.
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