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Which one of following elements is unabl...

Which one of following elements is unable to from `MF_(6)^(3-)` ion?

A

`Ga`

B

`Al`

C

`B`

D

`In`

Text Solution

Verified by Experts

The correct Answer is:
C
`MF_(6)^(3-)`
Boron belongs to `2^(nd)` period and it does not have vacant `d`=orbital. So can't expands its covalency.
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