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Chemistry Easy FPSC PPSC NTS Uploaded: 14 Jul 2026

What is the chemical formula for hydrogen peroxide commonly used as an antiseptic?

  • A H2O2
  • B H2O
  • C H3O2
  • D HO2
Correct Answer: Option A — H2O2
Explanation:
Hydrogen peroxide H2O2 is a pale blue liquid used as an antiseptic bleaching agent and rocket propellant differing from water by having an extra oxygen atom.
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