ChB_2023
তড়িৎ রাসায়নিক কোষের emf=?$\begin{array}{l} i. \mathrm{E}_{\text {Anode(ox) }}^{\circ}+\mathrm{E}^{\circ}_{Cathode (Red) }\\ ii. \mathrm{E}^{\circ}_{Cathode(Red) } - \mathrm{E}^{\circ} _\text { Anode (Red) } \\ iii. E^{0}{ }_{\text {Anode(ox) }}-E^{\circ} _\text { Cathode (Red) } \\\end{array}$নিচের কোনটি সঠিক?
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