Question

Explain the Arrhenius concept of acids and bases.

Answer 1

The Arrhenius definition of acid-basereactions, which was devised by Svante Arrhenius, is a development of the hydrogen theory of acids. ... An Arrhenius base is a substance that dissociates in water to form hydroxide (OH–) ions. In other words, a base increases the concentration of OH– ions in an aqueous solution.

Answer 2

$\textbf{\large{Answer -}}$

Those substances which gives ${H}^{+}$ ion in aqueous solution are known as acid.

Example :

$HCl (aq) ==> {H}^{+} (aq) + {Cl}^{-}$

$CH_{3}COOH (aq) ==> CH_{3}{COO}^{-} (aq) + {H}^{+} (aq)$

Those substances which gives ${OH}^{-}$ ion in aqueous solution are known as bases.

Example :

$NaOH (aq) ==> {Na}^{+} (aq) + {OH}^{-} (aq)$

$KOH (aq) ==> {K}^{+} (aq) + {OH}^{-} (aq)$