So this has always confused me. So how exactly do you know if a reaction is Redox or lewis acid/base since both of them involve the transfer of electron?
Lewis acid and bases are defined by gain and loss of electrons repectively. As far as i recall, donation of protons, gain of electrons and gain of oxygen is reduction. In your example, ammonia gains a proton and thus undergoes oxidation or donates a pair of electrons to a proton and thus undergoes oxidation. I hope this was your question.Do you have any example in mind? If I took a simple acid-base reaction like
H+ + NH3: → NH4+
Even that NH3 donates electrons(base) the oxidation states of any elements does not changed
N+3=0 -> N=-3
N+4=1 -> N=-3
So does that means at least that not all Lewis acid/bases are redox?