Assertion: Al forms [AlF6]3- but B does not form [BF6]3-. Reason: B does not react with F2.

Question

Assertion: Al forms [AlF6]3- but B does not form [BF6]3-. Reason: B does not react with F2. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

B does not have vacant d -orbitals (sub-shell) as its valence shell.

Q. Assertion : $A l$ forms $[A l F_{6}]^{3 -}$ but B does not form $[B F_{6}]^{3 -}$ .
Reason : $B$ does not react with $F_{2}$ .

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

$B$ does not have vacant $d$ -orbitals (sub-shell) as its valence shell.

Q. Assertion : Al forms [AlF6​]3− but B does not form [BF6​]3−. Reason : B does not react with F2​.