Chemistry - Complete s-block Question with Solution | TestHub

$\stackrel{\mathrm{B}\mathrm{e}\mathrm{O}<\mathrm{M}\mathrm{g}\mathrm{O}<\mathrm{C}\mathrm{a}\mathrm{O}<\mathrm{B}\mathrm{a}\mathrm{O}}{\to }$
Increasing order of basic nature
As basic character of oxides increases down the group so the least basic should be BeO. In fact, BeO is amphoteric oxide and rest are basic.