Question

Difference between Soft base and hard base. And hard acids and hard acids

Answer 1

Answer:

According to HSAB concept, hard acids prefer binding to the hard bases to give ionic complexes, whereas the soft acids prefer binding to soft bases to give covalent complexes. ... * The large electronegativity differences between hard acids and hard bases give rise to strong ionic interactions.

Answer 2

Hard :- Materials which are difficult to compress are called hard.