The standard reduction potentials of metals A and B are x and y respectively. If x > y, the standard emf of the cell containing these electrodes would be
A. 2x – y
B. y – x
C. x – y
D. x + y
Answer:C
The standard reduction potentials of metals A and B are x and y respectively. If x > y, the standard emf of the cell containing these electrodes would be
A. 2x – y B. y – x C. x – y D. x + y