Question

Half cell reactions for some electrodes are given below:

I. $A+e^{-}⟶A^{-};E^0=0.96V$

II. $B^{-}+e^{-}⟶B^{2-};E^o=-0.12V$
III. $C^{+}+e^{-}⟶C;E^o=+0.18V$

IV. $D^{2+}+{2e}^{-}⟶D;E^o=-1.12V$

The largest potential will be generated in which cell?

• A. $A^{-}|A\parallel B^{-}|B^2$
• B. $D|D^{2+}\parallel A|A^{-}$
• C. $B^2|B^{-}\parallel C^{+}|C$
• D. $D|D^{2+}\parallel C^{+}|C$

Answer 1

Answer: (B)