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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+)ltPm^(3+)ltLa^(3+)ltCe^(3+)`

B

`Yb^(3+)ltPm^(3+)ltCe^(3+)ltLa^(3+)`

C

`Pm^(3+)ltLa^(3+)ltCe^(3+)ltYb^(3+)`

D

`Ce^(3+)ltYb^(3+)ltPm^(3+)ltLa^(3+)`

Text Solution

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The correct Answer is:
B
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