Rain water is slightly acidic in general, due to :(I) dissolution of NO2 in water.(II) dissolution of SO2 in water.

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(I) and (II) both are correct

Only (I) is correct

only (II) is correct

Both (I) and (II) are incorrect

answer is D.

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Detailed Solution

Rain water is slightly acidic due to the dissolution of CO2 gas in water and not NO2 or SO2.

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