Question

Acids produce ______ ions on dissolving in water.

Answer 1

Acids produce hydronium ions on dissolving in water.

Explanation:

When acid molecules dissolve in water, they dissociate. The released hydrogen ions (H⁺) cannot exist alone, so they immediately combine with water molecules (H₂O) to form hydronium ions (H₃O⁺). These free-moving ions are the exact chemical components that cause acidity, sour taste, and electrical conductivity.