Question

identify the monoacidic base.

mg(oh)2

al(oh)3

koh

ca(oh)2

Explanation:

A mono - acidic base is a base that can donate one hydroxide ion (\(OH^-\)) per molecule.

• For \(Mg(OH)_2\), it can donate \(2\) \(OH^-\) ions (\(Mg(OH)_2=Mg^{2 +}+2OH^-\)), so it is a di - acidic base.
• For \(Al(OH)_3\), it can donate \(3\) \(OH^-\) ions (\(Al(OH)_3=Al^{3 +}+3OH^-\)), so it is a tri - acidic base.
• For \(KOH\), it can donate \(1\) \(OH^-\) ion (\(KOH = K^{+}+OH^-\)), so it is a mono - acidic base.
• For \(Ca(OH)_2\), it can donate \(2\) \(OH^-\) ions (\(Ca(OH)_2=Ca^{2 +}+2OH^-\)), so it is a di - acidic base.

Answer:

\(KOH\)