Assertion (A) : Al forms [AlF_(6)]^(3-) ions but B does not form [BF_(6)]^(3-) ions. Reason (R) :B does not react with F_(2).

Assertion (A) : Al forms [AlF_(6)]^(3-) ions but B does not form [BF_(

1.	Assertion (A) : Al forms [AlF_(6)]^(3-) ions but B does not form [BF_(6)]^(3-) ions. Reason (R) :B does not react with F_(2).
Answer» Both A and R are TRUE and R is the CORRECT explanation of A Both A and R are true but R is not a correct explanation of A A is true but R is FALSE A is false but R is true Solution :Reason. DUE to non-availability of d-subshell in the valence shell of B, it cannot expand its octet.