Which of the following Lewis acid-base reactions are not Bronsted acid-base reactions ?

Question

a) Ag +(aq) + 2CN -(aq) = Ag(CN)2 -(aq)

b) HNO3(aq) + NaOH --> NaNO3(aq) + H2O(l)

c) BeF2(aq) + 2F-(aq) = BeF4 2-(aq)

d) H2SO4(aq) + H2O(l) --> H3O+(aq) + HSO4-(aq)

There can be more than one answer

Thank You!!!

Answer 1

I think (a) and (c) are the reactions, since they dont
form two products. The earliest "acid/base" definition was the Arrehnius one, i.e. your question on KOH and HNO3. Bronsted's definition came later because many reactions involved bases that did not supply OH-, such as with ammonia. Lewis' followed later than that.