Arrange the following in increasing order of basic character = MgO,SrO,K2O,AND Cs2O
Answers
Answer:NiO < MgO < SrO < K2O < Cs2O
Explanation:
Explanation: Alkali metal oxides are most basic followed by alkaline earth metal oxides while transition metal oxides are least basic. Amongst alkali and alkaline earth metal oxides, basicity increases down the group. Thus, Cs2O is more basic than K2O and SrO is more basic than MgO.
The following are arranged in the increasing order of basic character = MgO,SrO,K2O,AND Cs2O
Explanation:
The above given options are all metal oxides belonging to group 1 and group 2 .
That is they are : either alkali metals or alkaline earth metals .
Basic character : It refers to the nature of oxides .
As we know , every chemical substance has certain nature either acidic , basic or neutral .
Acidic substance
When acidic substance is dissolved in water in form acid
It turns blue litmus red .
Basic substance
When basic substance is dissolved in water , it forms hydroxide .
It turns red litmus blue .
Neutral substance
It remains the same
Basic character depends upon :
- Size of combining atoms (metal and oxygen ): more is the size difference , more it is basic in nature .
- Nature of combining atoms : It depends whether the given substance is metal or non metal .
In given options : the increasing order depending upon their basic strength is : Cs2O,K2O,SrO,MgO