The acid which fails to liberate carbon dioxide from sodium bicarbonate is : A. Acetic acid B. Formic acid C. Carbonic acid D. Sulphuric acid

Acetic acid
Formic acid
Carbonic acid
Sulphuric acid

The correct answer is A. Acetic acid.

Acetic acid is a weak acid and does not react with sodium bicarbonate to liberate carbon dioxide. The other options are all strong acids and will react with sodium bicarbonate to liberate carbon dioxide.

Acetic acid is a colorless liquid with a sharp, vinegar-like odor. It is the main component of vinegar and is used in a variety of other products, including food, cosmetics, and pharmaceuticals.

Sodium bicarbonate is a

white, crystalline solid that is commonly known as baking soda. It is used in baking, as a leavening agent, and in a variety of other products, including toothpaste, antacids, and cleaning products.

When sodium bicarbonate is mixed with a strong acid, such as sulfuric acid, a chemical reaction occurs that produces carbon dioxide gas. This gas is what causes the mixture to fizz.

However, when sodium bicarbonate is mixed with a weak acid, such as acetic acid, the reaction does not produce carbon dioxide gas. This is because the weak acid is not able to completely dissociate into its ions. As a result, the reaction does not produce enough hydrogen ions to react with all of the sodium bicarbonate molecules.

Therefore, the only option that does not liberate carbon dioxide from sodium bicarbonate is A. Acetic acid.