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9 grade science

The two strong acids present in the acid rain are:A. HN{O_2} and HN{O_3} B. {H_2}S{O_4} and HN{O_3} C. {H_2}S{O_3} and {H_2}S{O_4} D. {H_2}C{O_3} and HCl

Profile image of Aniket Singh
1 Year agoGrade
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1 Answer

Profile image of Askiitians Tutor Team
1 Year ago

To identify the two strong acids present in acid rain, let's first understand what acid rain is and the common acids associated with it.

Acid Rain
Acid rain is a term that describes precipitation (like rain, snow, or fog) that has a lower pH than normal, making it acidic. The primary causes of acid rain are sulfur dioxide (SO₂) and nitrogen oxides (NOₓ) that react with water, oxygen, and other chemicals in the atmosphere to form acids.

Common Acids in Acid Rain
The main acids found in acid rain are:

Nitric acid (HNO₃): Formed from nitrogen oxides (NO and NO₂) reacting with water.
Sulfuric acid (H₂SO₄): Formed from sulfur dioxide (SO₂) reacting with water.
Now, let’s analyze the given options:

A. HN{O_2} (Nitrous acid) and HN{O_3} (Nitric acid)

Nitric acid is indeed a strong acid in acid rain, but nitrous acid is weaker and not typically associated with acid rain.
B. {H_2}S{O_4} (Sulfuric acid) and HN{O_3} (Nitric acid)

Both sulfuric acid and nitric acid are strong acids found in acid rain. This is a strong candidate.
C. {H_2}S{O_3} (Sulfurous acid) and {H_2}S{O_4} (Sulfuric acid)

Sulfuric acid is a strong acid, but sulfurous acid is weaker compared to sulfuric acid.
D. {H_2}C{O_3} (Carbonic acid) and HCl (Hydrochloric acid)

Carbonic acid is weak, and although hydrochloric acid is strong, it is not commonly associated with acid rain.
Conclusion
The correct answer is B: {H_2}S{O_4} (Sulfuric acid) and HN{O_3} (Nitric acid), as both are strong acids commonly found in acid rain.