According to Arrhenius's theory ______?

ارینیئس کے نظریہ کے مطابق ______؟

Acids are the substances that produce hydroxyl group

Acids are the substances that produce hydrogen ion

Acids are electron pair donors

None of these

The Arrhenius theory (1887) defines:

Acids: Substances that dissociate in water to produce H⁺ ions (protons), such as:

HCl → H⁺ + Cl⁻

Bases: Substances that dissociate in water to produce OH⁻ ions (hydroxide ions), such as:

NaOH → Na⁺ + OH⁻