NEET Chemistry The p-Block Elements (XII) Questions Solved

NEET - 2016

AlF3 is soluble in HF only in presence of KF. It is due to the formation of
(a) K3[AIF3H3]
(b) K3[AIF6]
(c) AlH3
(d) K[AIF3H]

(b) Key Idea Al3+shows maximum coordination number 6, thus it will form AF6-3

AIF3 forms K3[AIF6] when dissolved in HF in the presence of KF as shown below:

AlF3+ 3KF    HF    K3AlF6

Difficulty Level:

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