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# In the preparation of oxygen by heating KCIO, in the presence of MnO$$_2$$ only ...

### Question

In the preparation of oxygen by heating KCIO, in the presence of MnO$$_2$$ only moderate heat is needed because the catalyst acts by $$_2$$

### Options

A) lowering the pressure of the reaction

B) increasing the surface area of the reaction

C) increasing the rate of the reaction

D) lowering the energy barrier of the reaction