Pure water is kept in a vessel and it remains exposed to atmospheric which is absorbed, then its pH will be

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Question

Pure water is kept in a vessel and it remains exposed to atmospheric $CO_2$ which is absorbed, then its pH will be

Prashant Kotian · Accepted Answer

Correct answer: B. Less than 7. Atmospheric 2 CO will dissolve in water and form 2 3 H CO (Carbonic acid) which will make the pH of solution drop below 7.

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