Chemistry
State why natural rain water produced in an unpolluted atmosphere is slightly acidic. Give a balanced equation of the same.
Pollution
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Answer
Natural rain water produced in an unpolluted atmosphere is slightly acidic as CO2 present in traces in unpolluted air dissolves in rain water forming weak carbonic acid [H2CO3].
H2O + CO2 ⟶ H2CO3 [carbonic acid]
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