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The decreasing order of acidic character...

The decreasing order of acidic character is `:`

A

`K_2O gt BaO gt CaO gt MgO `

B

`K_2O gt CaO gt BaO gt MgO `

C

`MgO gt BaO gt CaO gt K_2O `

D

`MgO gt CaO gt BaO gt K_2O `

Text Solution

Verified by Experts

The correct Answer is:
A
Alkali metla oxides are strongly basic in nature. Down the group in alkaline earth metals, the basic character increases due the decreases in ionization enthalpy . So , the correct order of basic character is :
`K_2O gt BaO gt CaO gt MgO`
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MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -COMPETITION FILE ( MULTIPLE CHOICE QUESTION (B))
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