Question

Who proposed ionic theory of acids and bases?
1. Arrhenius
2. Bronsted
3. Lewis
4. Lowry

Answer 1

Correct Answer - Option 1 : Arrhenius

Explanation -

Svante              Arrhenius	Got the Nobel prize for chemistry in 1903 (the first Swedish to get a noble prize). His theory is called the Arrhenius theory or ionic theory of acids or bases.	According to the Arrhenius principle, acid is a substance that, when dissolved in an aqueous solution, produces H+ ions. The concentration of H+ ions in the solution rises as a result. The base is a substance that, when dissolved in an aqueous solution, ionizes the OH– ion. The solution contains a high concentration of OH- ions.
Johannes Bronsted and Thomas Martin Lowry	The Bronsted–Lowry theory (also known as the proton theory of acids and bases) is an acid-base reaction theory that was independently introduced in 1923 by Johannes Nicolaus Brnsted and Thomas Martin Lowry.	The basic idea behind this theory is that when an acid and a base react, the acid forms its conjugate base and the base forms its conjugate acid through proton exchange.
Gilbert Lewis	He established the electron-pair theory of acid–base reactions in 1923.	A "Lewis acid" is an electron-pair acceptor in this theory of acids and bases, and a "Lewis base" is an electron-pair donor.

 

• As the ionic theory of acids and bases is given by Svante Arrhenius, it is the correct option.