Asap pls what is the cell potential? a. the difference in oxidation potentials of the half-cells b. the sum of reduction potentials of the half-cells c. the sum of oxidation potentials of the half-cells d. the difference in reduction potentials of the half cells

Cell potential is defined as D. difference between reduction potentials of half cells.

The cell potential is calculated by taking the difference in the half reaction which is reductive and the half reaction which is oxidative.

Symbolically: E°cell = E°cathode − E°anode

Under standard temperature and pressure condition, the standard cell potential of hydrogen electrode is 0 V. The cell potential is obtained by subtracting because it is impossible to measure the exact single electrode potential hence it is measured in the form of difference.