Question

The characteristic properties of an acid is due
to the presence of
(a) hydride ions
(b) hydroxyl ions
(c) hydronium ions
(d) oxide ions​

Answer 1

Answer:

hydronium ions

Explanation:

Acids are the chemicals which release hydrogen ions in the solution . When an acid dissociates into its constituents ions, formation of hydronium ions takes place by the reaction of hydrogen ions with the water molecule. Hydronium ions are represented by the formula H3O+.

Hydrochloric acid dissociates into hydrogen ions and chloride ions. In aqueous solution, hydrogen ions combine with water molecules to give hydronium ions , which is acidic in nature. If an acid is not able to release hydrogen ions rapidly, it is a weak acid.

Answer 2

(c) hydronium ions is characteristic property of acid.

• Acid is defined as the substance with capability to donate protons and bases are defined as the substance with ability to accept protons.
• Thus, acids release hydronium ions and bases release hydroxyl ions.
• pH of acid is less than 7 and that of base is more than 7.
• Example of acid is hydrochloric acid, nitric acid.
• Example of base is ammonium hydroxide, sodium hydroxide.