Is your question whether a base can be an oxidant?. Of course an oxdiant must be an electron acceptor, but it can be a proton acceptor (=base) as well.
A lot of anions (which derive from acids) are common oxidants, although they are bases and have no acidic character. For example ClO- or MnO4-. Correct me, if i misunderstood the problem.
Well, would it be correct to say that oxidants can only be lewis bases, instead of bronstead lowry? Because a Bronstead lowry base is purely a proton acceptor, so how can it be a base if it is not just accepting a proton, but a proton and an electron?
Also, aren't your examples salts? I was under the impression that you can have acidic or basic salts but they're not really classified as acids or bases per se? If that is incorrect then I have another issue with it, on completely the opposite spectrum (so obviously I'm wrong in at least one way, likely two
). How is there a change in oxidation state taking place with your examples? If they are replaced with hydrogen then that is still more electropositive than the nucleophile and no oxidation change is taking place, correct?
Like I said obviously I know I'm wrong on at least one front.