Which gases dissolves in water to give acidic solution

• GC Metals Non-Metals

Which one of the following gases dissolves in water to give acidic solution?

1. Carbon dioxide
2. Oxygen
3. Nitrogen
4. Hydrogen

Answer

Carbon dioxide (CO₂) gas dissolved in water can cause water to become acidic.

CO₂ + H₂O → H₂CO₃ (Carbonic acid)

Generally, non metal oxides dissolve in water and form acidic solutions.

The correct option is A.