Question

Write the definitions of acid and base as proposed by Arrhenius.

Answer 1

1. Classification of chemical substances

Based on the nature of proton releasing or hydroxide releasing capacity a substance in its aqueous solution is classified as an acid or a base. Many theories had proposed the definitions of acids and bases and one such theory is Arrhenius's theory.

2. Acid

An acid is a substance that can release protons in its aqueous solution is an acid according to Arrhenius's theory.

3. Base

A base is a substance that can release hydroxide ions in its aqueous solution is the base.