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Assertion : All forms [AlF(6)]^(3-) but ...

Assertion : All forms `[AlF_(6)]^(3-)` but B does not form `[BF_(6)]^(3-)`.
Reason : B does not react with fluorine.

Text Solution

Verified by Experts

Maximum co-ordination number of boron is four as it does not have d-orbitals, while the maximum coordination number of aluminium is 6.
Thus, Al forms `[AlF_(6)]^(3-)`ion while boron does not form `[BF_(6)]^(3-)` ion.
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