Carbon Dioxide CO2
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Carbon dioxide (CO2) is a colorless gas that can dissolve in water to form a mildly acidic solution known as carbonic acid.
Yes, hydrogen sulfide (H2S) gas is acidic in nature. When dissolved in water, it forms hydrosulfuric acid, which ionizes to release hydrogen ions, making the solution acidic.
Grapes are mildly acidic with a pH range of 3.3-3.7, making them a slightly acidic food.
A pH of 4 is considered acidic. pH values below 7 indicate acidity, while values above 7 indicate alkalinity or basicity.
it goes colourless in an alkiline soloution but in an acidic substance it goes a fushia pink colour! You are WRONG! The solution will be colourless at acidic and neutral pH and goes pink above about pH 8, I hope you aren't a science teacher.
Nitric oxide gas is colorless.