Question

6. Write short notes on the following:
(i) Pearson's hard and soft acid-base theory.
(ii) Characteristics of soft acid.​

Answer 1

Answer:

Hard and Soft Acids and Bases (HSAB) Principle is a qualitative concept introduced by Ralph Pearson to explain the stability of metal complexes and the mechanisms of their reactions. ... Soft Lewis bases are characterized by large ionic radii, intermediate electronegativity, highly polarizable and with low energy HOMOs.