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Chemistry Medium FPSC PPSC NTS Uploaded: 14 Jul 2026

What is the chemical formula for sulfur dioxide a gas that causes acid rain?

  • A SO3
  • B S2O
  • C SO
  • D SO2
Correct Answer: Option D — SO2
Explanation:
Sulfur dioxide SO2 is produced by burning fossil fuels containing sulfur and when it reacts with atmospheric moisture it forms sulfurous and sulfuric acid contributing to acid rain.
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MCQ Details
SubjectChemistry
DifficultyMedium
Exam Typesfpsc, ppsc, nts
CorrectOption D
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