Answer: Option (3) is the correct answer.
Explanation:
Arrhenius base are defined as the species which dissociate to give hydroxide or \(OH^{-}\) ions.
For example, when \(Ca(OH)_{2}\) is dissolved in water then it dissociates into \(Ca^{2+}\) and \(OH^{-}\) ions.
Whereas \(CO_{2}\), \(CaSO_{4}\), and \(C_{2}H_{5}OH\) does not dissociate to give hydroxide ions.
Thus, we can conclude that \(Ca(OH)_{2}\) compound is an Arrhenius base.
