Question

${\text{H}}^{+}$ ion comes from the ionization of which of these?

• A. Acids
• B. Bases
• C. Either acids or bases
• D. Alkalis

Answer 1

The correct option is A Acids

Acids release ${\text{H}}^{+}$ ions and bases release ${\text{OH}}^{-}$ ions in water.

An acid ionizes in water as following:
$HA\left(aq\right)\to H^{+}\left(aq\right)+A^{-}\left(aq\right)$

Released ${\text{H}}^{+}$ ions combine with water to form ${\text{H}}_3{\text{O}}^{+}$ ions.

Example:
$HCl\left(aq\right)+H_{2}O\left(l\right)\to {\text{H}}_3{\text{O}}^{+}\left(aq\right)+C{l}^{-}\left(aq\right)$