Question

Differentiate between dibasic and tribasic acids.

Answer 1

Sr. No.	Dibasic acids	Tribasic acids
1.	They contain two replaceable hydrogen atoms per molecule.	They contain three replaceable hydrogen atoms per molecule.
2.	They furnish two (H+) ions per molecule on complete ionisation.	They furnish three (H+) ions per molecule on complete ionisation.
3.	They form salts in which two hydrogen ions can be replaced by metal ions or other positive ions.	They form salts in which three hydrogen ions can be replaced by metal ions or other positive ions.
4.	Example: Sulphuric acid (H2SO4)	Example: Phosphoric acid (H3PO4)