Which equilibrium can be described as an acid-base reaction using the Lewis’s acid-base definition, — Ionic Equilibrium Chemistry Question

💡 Solution & Explanation

According to Bronsted - Lowry concept, an acid is a proton donor in aqueous solution. Similarly, base is a proton acceptor. According to Lewis concept of acids and bases, an acid is a substance which can accept a lone pair of electrons whereas a base is a substance which can donate a lone pair of electrons. In option, A, B and D, clearly there is donation and acceptance of proton takes place. But in option C, there is the involvement of loss- gain of electron pairs only. 2 2 2 3 3 2 4 4 Cu H O 4NH Cu NH 4H O Firstly, water is coordinated to copper by donation