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Chemistry Medium FPSC PPSC NTS Uploaded: 14 Jul 2026

What is the chemical formula for nitric acid used in fertiliser and explosive manufacturing?

  • A H2SO4
  • B HCl
  • C H3PO4
  • D HNO3
Correct Answer: Option D — HNO3
Explanation:
Nitric acid has the formula HNO3 and is a strong oxidising acid used in the production of fertilisers explosives and in metal etching processes.
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