Question

define basicity of acids and acidity of bases

Answer 1

The number of ionizable hydrogen (H+) ions present in one molecule of an acid is called its basicity

For example:
HCl (aq) ↔ H+ + Cl- 
Basicity of HCl is 1


Number of replaceable hydroxyl groups present in one molecule
of base is known as acidity of a base.

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