sblock Elements 2 Question 23

25. Arrange the following in increasing order of basic strength :

MgO,SrO,K2O,NiO,Cs2O

(1991, 1M)

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Solution:

  1. Basic strength (i) decreases from left to right in period and (ii) increases from top to bottom in group. Therefore,

NiO<MgO<SrO<K2O<Cs2O Basic strength



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