Question

When co², dissolves in pure water, then pH of water changes to ​

Answer 1

Answer:

less than 7

Explanation:

When CO2 ( carbon dioxide ) is passed through H2O ( water ) , then it reacts with water to form H2CO3 ( Carbonic acid ) .

We know that ,

acid reduces the value of pH .

So ,

pH will be less than 7 in this case .