Acid and Base
Arrhenius concept
The concept of acid and base was the first introduced by Arrhenius. According to Arrhenius theory, an acid may be defined as any hydrogen containing substance which gives H⁺ ions in aqueous solution. A base may be defined as a substance containing hydril groups or groups complete of providing hydroxide ions(OH⁻) in aqueous solution.
Bronsted-Lowry concept
Lewis concept
