Question
Explain Arrhenius theory of acid and base with example.

Answer

According to Arrhenius acids are those substances which gives $H ^{+}$when they get dissociated in water while base gives $OH ^{-}$.
Example :
Acids : $HX ^{-}( aq ) \rightleftharpoons H ^{+}( aq )+ X ^{-}( aq )$
$
HCl(aq)+H_2 O(l) \longrightarrow H_3 O^{\oplus}(aq)+Cl^{( }(aq)
$
In aqueous solution $H ^{+}$do not remain free else it exist in form of hydronium ion $\left( H _3 O ^{+}\right)$.
$
\text { Bases: } NaOH(aq) \xrightarrow{+H_2 O} Na^{+}(aq)+OH^{-}(aq)
$

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