Question

Which of the following ions is furnished by acids in aqueous solution?

• A. $O{H}^{-}$ ions
• B. $H^{+}$ ions
• C. $H_3{O}^{+}$ ions
• D. None of these

Answer 1

Answer: (C)

$H_3{O}^{+}$ ions

Acids are compounds that generally release hydrogen ions $H^{+}$ which result in the acidic conditions.

However, in case of aqueous solution, there is presence of water $\left(H_{2}O\right)$ and hence the hydrogen ion combines with water to form hydronium ion $H_3{O}^{+}$.

$H^{+}+H_{2}O\to H_3{O}^{+}$

Hence, the correct answer is option (C).