Question

Explain the nature of basic acid as a lewis acid in water

Answer 1

The terms acid and base have been used for several hundred years. Acids were substances that had a sour taste, were corrosive, and reacted with substances called bases. Substances that had a bitter taste, made skin slippery on contact, and reacted with acids were called bases. However, these simple definitions had to be refined as the chemical properties of acids and bases became better understood.The first chemical definition of acids and bases was made by Svante Arrhenius. An Arrhenius acid is a substance that produces H1+ ions when it is dissolved in water, and an Arrhenius base is a substance that produces OH1– ions when dissolved in water. In this theory, an acid ionizes in water much as an ionic substance, and the equilibrium constant for the reaction is called the acid ionization constant. For example, the ionization of the Arrhenius acid HCl in water is represented as follows:

HCl → H1+ + Cl1−

 

Neutralization is the reaction of an acid and a base to produce water and a salt.

HCl + NaOH → H2O + NaCl

 

Answer 2

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• Boric acid is a weak monobasic acid and acts as a Lewis acid by accepting electrons from a hydroxyl ion.