Why Are Aqueous Solutions of Highly Charged Metal Ions, Such

Multiple Choice

Why are aqueous solutions of highly charged metal ions, such as , usually acidic?

A) The highly charged ion strips hydrogen ions away from water as if forms and releases them into the solution causing the solution to become acidic.
B) As the water molecule binds to the aluminum ion, the H-O bond becomes more polar. This means that the water molecule is more readily able to form hydrogen ions, which makes the solution acidic.
C) False! ions tend to make aqueous solutions basic since they pull the OH^⁻ ion from the water molecule.
D) The formation of the oxide releases hydrogen ions to the aqueous solution making it acidic.