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The correct order of ionic radii of Y^(3...

The correct order of ionic radii of `Y^(3+), La^(3+), Eu^(3+)` and `Lu^(3+)` is (Atomic nos. Y=39 , La = 57, Eu = 63, Lu = 71)

A

`Y^(3+) lt La^(3+) lt Eu^(3+) lt Lu^(3+)`

B

`Y^(3+) lt Lu^(3+) lt Eu^(3+) lt La^(3+)`

C

`Lu^(3+) lt Eu^(3+) lt La^(3+) lt Y^(3+)`

D

`La^(3+) lt Eu^(3+) lt Lu^(3+) lt Y^(3+)`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-D-BLOCK ELEMENTS-OBJECTIVE EXERCISE-3 (PREVIOUS NEET/AIPMT QUESTIONS)
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  2. The basic character of the transition metal monoxides follows the orde...

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  4. Among the following series of transition metal ions, the one where all...

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  5. Lanthanoids are

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  7. Four successive member of the first row tran sition elements are liste...

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  8. The aqueous solution containing which one of the following ion will be...

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  12. Which one of the following ions is the most stable in aqueous solution...

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  14. The correct order of decreasing second ionization enthalpy of Ti(22), ...

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  15. Which one of the elements with the following outer orbital configurati...

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  16. Which of the following ions will exhibit colour in aqueous solutions ?

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  17. Which one of the following ions has electronic configuration [Ar]3d^6 ...

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  18. Which of the following pairs has the same size

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  19. Match List I (substances) with List II (processes) employed in the man...

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