tHEORIES
The bronsted -lowry theory
The Bronsted-Lowry theory classifies a substance that acts as a proton donor, as an acid.
A substance that is a proton acceptor is categorized as a base.
Arrhenius Acid and Base Theory
Lewis Acid and base theory
The Lewis theory categorizes a substance as an acid if it acts as an electron pair acceptor.
It classifies a base as a substance that acts as an electron pair acceptor.
It classifies a base as a substance that acts as an electron pair acceptor.