The correct distinction between oxidation and hydrolysis is as follows:
- Oxidation involves the reaction of oxygen with minerals, leading to the alteration of minerals, often resulting in the formation of oxides (e.g., iron oxide from iron-bearing minerals).
- Hydrolysis involves the reaction of water with minerals, breaking down the minerals and often leading to the formation of clay minerals and ions in solution.
Therefore, the correct statement should be: "In oxidation, oxygen reacts with minerals. In hydrolysis, water reacts with minerals."