1.

AlF_(3) is soluble in HF only in the presence of KF. It is due to the formation of

Answer»

`K_(3)[AlF_(3)H_(3)]`
`K_(3)[AlF_(6)]`
`AlH_(3)`
`K[AlF_(3)H]`

SOLUTION :`AlF_(3)+3KFtoK_(3)[AlF_(6)]`


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