The oxides BaO, CaO, MgO and SrO all form alkaline solutions when they are added to water. Which oxide gives the saturated solution with the greatest pH?
- A$\text{BaO}$
- B$\text{CaO}$
- C$\text{MgO}$
- D$\text{SrO}$
Chemistry 9701 · AS & A Level · Equilibria