What does soda water contain?(A). Carbonic acid(B). Sulphuric acid(C). Carboxylic acid(D). Nitrous acid

Soda water, also known as carbonated water or sparkling water, typically contains carbonic acid (A). Carbonic acid is formed when carbon dioxide gas is dissolved in water under pressure. When the pressure is released, such as when a bottle or can of soda water is opened, the carbonic acid decomposes into water and carbon dioxide gas, resulting in the release of bubbles.

Sulphuric acid (B), carboxylic acid (C), and nitrous acid (D) are not typically found in soda water. Sulphuric acid is a strong acid commonly used in industrial processes, carboxylic acids are a class of organic acids found in various substances such as vinegar and citrus fruits, and nitrous acid is a weak acid that is not commonly encountered in beverages.