1.

The none-existent species isA. `XeF_(5)`B. `BrF_(5)`C. `SbF_(5)`D. `PF_(5)`

Answer» Correct Answer - a
Coordination number of `Xe` can be `2,4,6` as it can have `2,4,` and `6` unpaired electrons only .Hence `XeF_(5)` is not known .


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