Question

${\text{H}}^{+}$ ions released by acids combine with water to form ______ ions.

• A. ${\text{H}}^{+}$
• B. ${\text{H}}_3{\text{O}}^{+}$
• C. ${\text{H}}_2\text{O}$
• D. ${\text{OH}}^{-}$

Answer 1

Answer: (B)

${\text{H}}_3{\text{O}}^{+}$

When acids are dissolved in water ${\text{H}}^{+}$ ions are released in water. The ${\text{H}}^{+}$ ions released in a solution have no independent existence, i.e,. they are not stable on their own.

Therefore, they combine with the water molecules present in the solution to form hydronium ions (${\text{H}}_3{\text{O}}^{+}$). These ions formed during the dissociation of acids in water is the basis of the properties of various acids.