The decreasing order of basic character of K_ | vedclass

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Question

(A) The basic character of metal oxides depends on the electropositivity of the metal. As we move down a group, the metallic character increases, and

Vedclass · Accepted Answer

$K_2O > BaO > CaO > MgO$

Vedclass · Answer

(A) The basic character of metal oxides depends on the electropositivity of the metal. As we move down a group, the metallic character increases, and as we move across a period from left to right, the metallic character decreases. $K$ is an alkali metal (Group $1$), while $Ba$, $Ca$, and $Mg$ are alkaline earth metals (Group $2$). Within Group $2$, the metallic character increases as we go down the group: $Mg Since $K$ is more electropositive than the Group $2$ metals, $K_2O$ is the most basic. Therefore, the correct decreasing order of basic character is $K_2O > BaO > CaO > MgO$.

The decreasing order of basic character of $K_2O$, $BaO$, $CaO$ and $MgO$ is

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