Trying to find the right answer to this..

(i) It fails to explain the reaction between acidic oxides (SO 2 , SO 3 etc.) and basic oxides (BaO, CaO, Na 2 O etc.) because, in such reactions, no proton transfer occurs. (ii) It fails to recognise the acidic character of FeCl 3 , AlCl 3 BF 3 etc.

Equilibrium

Question

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What are the limitations (drawbacks) of Bronsted-Lowry concept of acids and bases?

Answer

(i) It fails to explain the reaction between acidic oxides (SO₂, SO₃ etc.) and basic oxides (BaO, CaO, Na₂O etc.) because, in such reactions, no proton transfer occurs.
(ii) It fails to recognise the acidic character of FeCl₃, AlCl₃ BF₃ etc.