60. The acid which fails to liberate carbon dioxide from sodium bicarbonate is : A.Acetic acid B.Formic acid C.Carbonic acid D.Sulphuric acid
Answer: Option D Solution: Sodium bicarbonate and organic acid (Formic acid, Acetic acid, Carbonic acid, etc) react vigorously to liberate carbon dioxide. For example, Sodium bicarbonate (NaHCO3) when treated with acetic acid reacts vigorously to liberate carbon dioxide.