Question

Fill in the blank spaces by choosing the correct words from the given list.

List: Oxygen, carbonic, sulphur dioxide gas, precipitation, helium

Solution of carbon dioxide in water is called ________ acid.

Answer 1

• Carbon dioxide ${\mathrm{CO}}_2$ dissolves in water, and reacts with water molecules to form carbonic acid, a mildly acidic solution.
• The reaction involved is:$\underset{}{\underset{\mathrm{Carbon}\mathrm{dioxide}}{{\mathrm{CO}}_2\left(\mathrm{g}\right)}+\underset{\mathrm{Water}}{{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}\to \underset{\mathrm{Carbonic}\mathrm{acid}}{{\mathrm{H}}_2{\mathrm{CO}}_3\left(\mathrm{aq}\right)}}$

So, the solution of carbon dioxide in water is called carbonic acid.