Question

According to Arrhenius, acid generates _____ ions in water.

• A. ${\text{H}}^{+}$
• B. ${\text{OH}}^{-}$
• C. ${\text{Cl}}^{-}$
• D. ${\text{F}}^{-}$

Answer 1

The correct option is A

${\text{H}}^{+}$

According to Arrhenius, an acid is a substance that dissociates in water to form hydrogen ions (${\text{H}}^{+}$) and base is a substance that dissociates in water to form hydroxide (${\text{OH}}^{–}$) ions.

For example: Hydrochloric acid ($\text{HCl}$) is an acid as it gives ${\text{H}}^{+}$ in an aqueous solution and sodium hydroxide ($\text{NaOH}$) is a base as it dissociates in water to give ${\text{OH}}^{-}$ ions.