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Which of the following causes acid rain?

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in Chemistry – Class 12 by (188k points)
Which of the following causes acid rain?

(a) Carbonic acid

(b) Sulfurous acid

(c) CFCs

(d) Hydrogen chloride

The question was posed to me in my homework.

I'd like to ask this question from P-Block Elements topic in division P-Block Elements of Chemistry – Class 12

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Right answer is (b) Sulfurous acid

For explanation I would say: Sulfurous acid causes acid rain. When sulfur is burned or sulfur compounds are released into the atmosphere, it rises up in the atmosphere to mix with water vapor to form sulfurous acid, H2SO3 or it reacts with more oxygen to form sulfur trioxide which forms sulfuric acid, H2SO4 on mixing with vapor and precipitating as acid rain.

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