Question

Given ${E^{o}}_{Ag^{+}/Ag} = + 0.80V;{E^{o}}_{Cu^{2 +}/Cu} = + 0.34V;$

${E^{o}}_{Fe^{3 +}Fe^{2 +}} = + 0.76V;{E^{o}}_{Ce^{4 +}/Ce^{3 +}} = + 1.60V$

Which of the following statements is not correct?

• A. $Fe^{3 +}$ does not oxidize $Ce^{3 +}$
• B. Cu reduces $Ag^{+}$to Ag.
• C. Ag will reduce $Cu^{2 +}$to Cu.
• D. $Fe^{3 +}$reduces $Cu^{2 +}$to Cu.

Answer 1

Answer: (C)

Ag will reduce $Cu^{2 +}$to Cu.

Answer 2

: Since Ag has higher reduction potential than Cu, Ag will not reduce $Cu^{2 +}$to Cu. Cu can reduce $Ag^{+}$ to Ag.