Question

What is ment by the basicity of an acid?​

Answer 1

The basicity of an acid is the number of hydrogen ions, which can be produced by one molecule of the acid. The table below shows some acids and their basicity Acid.

Answer 2

Basicity of an acid is defined as the no of ionizable hydrogen (H+) ions present in one molecule of an acid is called basicity.For eg:

Acid

Basicity

HCl - H+ and Cl-

H3PO4 - 3H+ and PO4 2-

H2SO4 - 2H+ and SO4 2-

Based on basicity they are classified as 1.Mono basic 2.Di basic 3.Tri basic and so on……

Caution: It isn’t in all cases that a compound furnishes all its containing hydrogen atoms as ions. Example: In Ethanoic acid.

When 1 mole of hydrogen ions is furnished from 1 mole of an acid, the acid is monobasic; it is dibasic when 2 moles of hydrogen ions are furnished, and tribasic when 3 moles of hydrogen ions are furnished from 1 mole of its solution.