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Arrange Ce^(3+),La^(3+), Pm^(3) and Yb^(...

Arrange `Ce^(3+),La^(3+), Pm^(3)` and `Yb^(3+)` in increasing order of their size -

A

`Yb^(3+) lt Pm^(3+) lt Ce^(3+) lt La^(3+)`

B

`Ce^(3+) gt Yb^(3+) lt Pm^(3+) lt La^(3+)`

C

`Yb^(3+) gt Pm^(3+) lt La^(3+) lt Ce^(3+)`

D

`Pm^(3+) lt La^(3+) lt Ce^(3+) lt Yb^(3+)`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Arrange Ce^(+3), La^(+3), Pm^(+3) and Yb^(+3) in increasing order of their ionic radii______.

    A
    `Yb^(+3) lt Pm^(+3) lt Ce^(+3) lt La^(+3)`
    B
    `Ce^(+3) lt Yb^(+3) lt Pm^(+3) lt La^(+3)`
    C
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    D
    `Pm^(+3) lt La^(+3)lt Ce^(+3)ltYb^(+3)`

  • Arrange Ce^(3+),La^(3+),P m^(3+) and Yb^(3+) in increasing order of their ionic radii,

    A
    `Yb^(3+) lt P m^(3+) lt Ce^(3+) ltLa^(3+)`
    B
    `Ce^(3+) lt Yb^(3+) lt P m^(3+) lt Ce^(2+)`
    C
    `Yb^(3+) lt P m^(3+) lt La^(3+) lt Ce^(2+)`
    D
    `P m^(3+) lt La^(3+) lt Ce^(3+) lt Yb^(3+)`

  • Arrange (I)Cr^(3+),(II)La^(3+),(III)Pm^(3+) and (IV)Yb^(3+) in increasing order of their ionic radii.

    A
    `IVltIIIltIltII`
    B
    `IltIVltIIIltII`
    C
    `IVltIIIltIIltI`
    D
    `IIIltIIltIltIV`

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