Which of the following has correct increasing basic strength?
MgO < BeO < CaO < BaO
BeO < MgO < CaO < BaO
BaO < CaO < MgO < BeO
CaO < BaO < BeO < MgO
BeO < MgO < CaO < BaO. The basic character of the oxides increases down the group.
The correct increasing order of basic strength for the following compounds is