Question

10. What is the 'pH' of pure water and that of rain water​

Answer 1

Answer:

As you can see from the pH scale above, pure water has a pH value of 7. This value is considered neutral—neither acidic or basic. Normal, clean rain has a pH value of between 5.0 and 5.5, which is slightly acidic

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Answer 2

pH of pure water is 7

pH of rain water is 5.5

coz it has many many impurities like some sulfur dioxide CO2

which make it slightly acidic

but when amount of impurities increase in water

pH dropes to 4 then rain considered to be acidic

hope it helps

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