Which statement is incorrect with regard to standard electrode potentials? a. the electrode in any half-cell with a greater tendency to undergo reduction is positively charged relative to the standard hydrogen electrode and therefore has a positive e°. b. electrons will flow from more negative electrode to more positive electrode. c. the electrode potential of the standard hydrogen electrode is exactly zero. d. all of the above statements are correct. e. e°cell is positive for spontaneous reactions. f. e° cell is the difference in voltage between the anode and the cathode.