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The decreasing order of basic character ...

The decreasing order of basic character of `K_2O, BaO, CaO and MgO` 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 metal oxides are very much basic. Down the group in the alkaline earth metal series, ionisation potential decreases.
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Knowledge Check

  • The decreasing order of basic character of K_(2)O BaO , CaO and MgO is

    A
    `K_(2)O gt BaO gt CaO gt MgO`
    B
    `K_(2)O gt CaO gt BaO gt MgO`
    C
    `MgO gt BaO gt CaO gt K_(2)O`
    D
    `MgO gt CaO gt BaO gt K_(2)O`

  • The order of basic character of

    A
    `I gt Ill gt I gt IV`
    B
    `III gt IV gt IIgtI `
    C
    `I gt II gt IV gt Ill`
    D
    `IV gt III gtII gtI`

  • The decreasing order of acidic character is :

    A
    `(I)gt(II)gt(III)gt(IV)`
    B
    `(I)gt(II)gt(IV)gt(III)`
    C
    `(IV)gt(III)gt(II)gt(I)`
    D
    `(III)gt(IV)gt(II)gt(I)`

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