Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides ?

Which one of the following orders presents the correct sequence of the

1.	Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides ?
Answer» `MgO LT K_(2)O lt Al_(2)O_(3) lt Na_(2)O` `Na_(2)O lt K_(2)O lt MgO lt Al_(2)O_(3)` `K_(2)O lt Na_(2)O lt Al_(2)O_(3) lt MgO` `Al_(2)O_(3) lt MgO lt Na_(2)O lt K_(2)O` Solution :CORRECT order of basic strength `Al_(2)O_(3) lt MgO lt Na_(2)O lt K_(2)O` Group 1 oxides are more basic than group 2 oxides. Basic character of oxides increases down the group.