In the preparation of oxygen by heating KClO 3 in the presence of MnO 2
CHEMISTRY
JAMB 2010
In the preparation of oxygen by heating KClO3 in the presence of MnO2, only moderate heat is needed because the catalyst acts by
- A) lowering the pressure of the reaction
- B) increasing the surface area of the reactant
- C) increase the rate of the reaction
- D) lowering the energy barrier of the reaction
Correct Answer: D) lowering the energy barrier of the reaction
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