Question

Arrange the following as ststed:
Increasing order of basic character: `MgO,SrO_(2),K_(2)O,NiO,Cs_(2)O`.

Answer 1

In the periodic table, the basic character of oxides decreases from left to right. Also the basic character of oxides increases down the group. Therefore, following is the increasing order of basic character of the given oxides. Moreover, basic character of group 1 is greater than that of group 2.
`NiO lt MgO lt SrO lt K_(2)O lt Cs_(2)O`