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  4. Arrange the following in increasing order of basic strength: MgO, SrO, K2O , NiO, Cs2O

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Q. Arrange the following in increasing order of basic strength :
$ MgO, SrO, K_2O , NiO, Cs_2O$

IIT JEEIIT JEE 1991The s-Block Elements

Solution:

Basic strength (i) decreases from left to right in period and (ii) increases from top to bottom in group. Therefore,
$ NiO < MgO < SrO < K_2O < Cs_2O$ Basic strength