Question : Aerated water contains
Option 1: SO2
Option 2: NO2
Option 3: H2
Option 4: CO2
Correct Answer: CO 2
Solution : The correct option is - CO₂
Carbon dioxide is used to aerate beverages like soda waters, lemonade, and others. A water molecule unites with carbonic acid when CO₂ is dissolved in water. As long as the beverage is under pressure, the carbon dioxide stays dissolved.
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