MCQ
Oxygen gas can be prepared from solid $KMn{O_4}$ by
  • Strongly heating the solid
  • B
    Treating the solid with ${H_2}$ gas
  • C
    Dissolving the solid in dil. ${H_2}S{O_4}$
  • D
    Dissolving the solid in dil. $HCl$

Answer

Correct option: A.
Strongly heating the solid
a
It’s Obvious.

 

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