Answerthe half-reaction having the greatest tendency to occur at the anode: iā(aq) + 2eā» ā 2iā» ; e = +0.53 v======
oxidation occurs at the anode. we must therefore find the half-reaction with the greatest tendency to oxidize.the given values of e are reduction potentials (the form of the half-reactions are of reduction).the lower the reduction potential, the higher the potential to oxidize. the half-cell with the lowest reduction potential will have the greatest tendency to oxidize at the anode.the half-reaction having the greatest tendency must be iā(aq) + 2eā» ā 2iā» e = +0.53 vbecause its reduction potential is the lowest out of the three.