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General Knowledge Hard ppsc

The chemical formula H2O represents which substance?

  • A Hydrogen peroxide
  • B Salt
  • C Ammonia
  • D Water
Correct Answer: Option D — Water
Explanation:
The chemical formula H2O represents water, composed of two hydrogen atoms bonded to one oxygen atom, and is essential for all known forms of...
Submitted by: PaperMCQs
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