Straight from TPR. I picked C but the correct answer is A.
The answer explanation states that there is no oxidant to accept the electron from Cl- to give Cl2. I don't understand what this means. Can anyone explain this to me using that brief explanation or an easier explanation? Thanks.
Here's my take on it (may or may not be wrong). Because the reduction potential of K+ is negative, it will be oxidized (K --> K+). When K is oxidized, it releases electrons, which can be accepted by H+ to form H2 gas. In order for Cl- to form Cl2, it would need to give up electrons (aka be oxidized), but its oxidation potential is negative (-1.36V) and so will not oxidize spontaneously unless there is an oxidant with a reduction potential >1.36V.