【Daily Question】Theoretical Foundation 2019.3.28
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Multiple-choice question: During electrolysis, at the anode, the substance that undergoes oxidation and discharge first is: ( ) A. The one with the highest standard reduction electrode potential B. The one with the lowest standard reduction electrode potential C. The one with the highest actual irreversible reduction electrode potential after considering polarization D. The one with the lowest actual irreversible reduction electrode potential after considering polarization Answer: D Hint: The answer can be seen in the response
It should be the one with the lowest potential, so choose D
During electrolysis, the reaction that occurs first at the anode as part of the discharge process is: ( ) D. After taking polarization into account, the electrode potential for irreversible reduction is the lowest among them
. After considering polarization, the one with the highest actual irreversible reduction electrode potential