Oxygen gas can be prepared from solid \[KMn{{O}_{4}}\] by [DPMT 2001]

1.	Oxygen gas can be prepared from solid \[KMn{{O}_{4}}\] by [DPMT 2001]
A.	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» B. Treating the solid with \[{{H}_{2}}\] gas

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Oxygen gas can be prepared from solid \[KMn{{O}_{4}}\] by [DPMT 2001]

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