Oxygen is prepared in laboratory from KClO₃ in the presence of ______?
Oxygen is prepared in laboratory from KClO₃ in the presence of ______?
Explanation
In the lab, oxygen gas is prepared by heating potassium chlorate (KClO₃) in the presence of manganese dioxide (MnO₂) as a catalyst.
MnO₂ speeds up the decomposition of KClO₃ without being consumed.