Answer
These are slightly soluble in water, because of their divalent positive charges. However, their Kb values are large, and they dissociates hydroxide ions completely, so they are still considered to be strong bases.
Work Step by Step
These are slightly soluble in water, because of their divalent positive charges. However, their Kb values are large, and they dissociates hydroxide ions completely, so they are still considered to be strong bases.