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COMEDK2022ChemistryEnvironmental Chemistry

Which of the following gas is responsible for acid rain?

Options

  1. ASulphur dioxide and nitrous oxide
  2. BSulphur dioxide and carbon monoxide
  3. CSulphur dioxide and carbon dioxide.
  4. DSulphur dioxide and nitrogen oxide

Correct answer

D. Sulphur dioxide and nitrogen oxide

Step-by-step solution

Acid rain is primarily caused by the emission of sulphur dioxide ( SO₂ ) and nitrogen oxides ( NO_x ). These gases react with water vapor and other chemicals in the atmosphere to form sulphuric acid ( H₂SO₄ ) and nitric acid ( HNO₃ ), which then fall to the ground as acid rain. Among the given options, sulphur dioxide and nitrogen oxide are the primary pollutants responsible for this phenomenon. Answer: Sulphur dioxide and nitrogen oxide

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