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Oxygen gas can be prepared by heating?

Oxygen gas can be prepared by heating?
  • A.
    ammonium trioxonitrate (V)
  • B.
    ammonium trioxonitrate (III)
  • C.
    ppotassium trioxonitrate (V)
  • D.
    mamgamese (IV) oxide
Correct Answer: Option C
Explanation