p-Block Elements-I - Result Question 54

####25. AlF3 is insoluble in anhydrous HF but when little KF is added to the compound it becomes soluble. On addition of BF3, AlF3 is precipitated. Write the balanced chemical equations.

(2004, 2M)

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Solution:

  1. 3KF+AlF3B2H5Cl+H2

K3AlF6+3BF3AlF3+3KBF4

ppt



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