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Question

Acid rain occurs when the atmosphere is heavily polluted with _______ and ______.


A

SO2

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B

NOx

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Solution

  • Acid Rain is defined as the precipitation of acid in the form of rain.
  • When atmospheric pollutants like oxides of nitrogen (N) and sulfur (S) react with rainwater and come down with the rain, this results in acid rain.
  • The causes of acid rain are sulfur and nitrogen particles which get mixed with the wet components of rain.
  • The two strong acids present in acid rain are nitrogen oxide (NOX) and sulfur dioxide (SO2).
  • These two gases react with water in the atmosphere and oxygen (O2) in the air to form sulphuric acid (H2SO4) and nitric acid (HNO3).

Therefore, acid rain occurs when the atmosphere is heavily polluted with SO2 and NOX.


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