According to Arrhenius theory, an acid is a substance that:
A
Produces H+ ions in water
B
Produces OH- ions in water
C
Accepts protons
D
Donates electron pairs
Correct Answer: Option A — Produces H+ ions in water
Explanation:
Arrhenius theory defines an acid as a substance that increases the concentration of hydrogen ions (H+) when dissolved in water, while a base increases hydroxide ion (OH-) concentration.