GATE CE 2017 Set 1 — Question 15
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Environmental Engineering → Air Pollution → Impacts of Air Pollutants
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Question
Which one of the following is NOT present in the acid rain?
Correct answer
(D) CH₃COOH
Solution
Acid rain is primarily caused by the presence of strong mineral acids like sulfuric acid () and nitric acid (), which are formed when sulfur dioxide () and nitrogen oxides () react with water, oxygen, and other chemicals in the atmosphere.
1.Nitric acid (): Formed from emissions, a major component of acid rain.
2.Sulfuric acid (): Formed from emissions, the most significant component of acid rain.
3.Carbonic acid (): Formed naturally when atmospheric carbon dioxide () dissolves in rainwater. While it makes normal rain slightly acidic (pH ≈ 5.6), it is present in all rainwater, including acid rain.
4.Acetic acid (): This is an organic acid and is not a standard constituent of acid rain resulting from industrial pollutants.
Therefore, acetic acid is the one not typically associated with the formation of acid rain.Continue learning with Success Tracker
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