Question

Give two examples of dibasic acids.

Answer 1

Hint: We know that the acids are classified into monobasic, dibasic, tribasic etc. Since. The general property of acid is mainly due to the presence of hydrogen in them and not a single acid can exist without the presence of a hydrogen atom. So, the basicity of the acid depends on the number of ionisable hydrogen atoms.

Complete answer:
We know that the general property of acid is mainly due to the presence of hydrogen in them. Not a single acid can exist without the presence of a hydrogen atom. The acids are classified on the basis of their basicity. Basicity is defined as the number of hydrogen ions present in the molecule of acids which are ionisable. Sometimes there may be many hydrogen atoms present in the molecule but they may not be ionisable so the basicity should not be calculated on the basis of the number of hydrogen atoms present in the molecule.
Also basicity of an acid is defined: the number of ionisable hydrogen ions present in one molecule of an acid is called basicity. Based on the basicity acids were classified into different types. They are of following types: Monobasic acids: The acids which on ionisation produce one hydronium ion in water are known as mono-basic acids. Examples are: Hydrochloric acid, Hydro bromic acid. Dibasic acids: The acids which on ionisation produce two hydronium ions or which have two acidic hydrogen atoms in its molecules are known as di-basic acids.

Note:
Remember that students must keep in mind the concept of ionisable hydrogen and should count only the ionisable hydrogen present in the compound and not all the hydrogen to calculate the basicity. Orthophosphoric acid, commonly known as phosphoric acid, the phosphorus’s most essential oxygen acid.