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Which of the following fluorides is solu...

Which of the following fluorides is soluble in water?

A

`SrF_(2)`

B

`CaF_`

C

`MgF_(2)`

D

`BeF_(2)`

Text Solution

Verified by Experts

The correct Answer is:
4
The common fluorides `(F^(-))` are soluble in water except `MgF_(2), CaF_(2), SrF_(2), BaF_(2), PbF_(2)`.
Beryllium fluoride (a predominantly convent compound) is very soluble in water, owing to the high solvation energy of Be in forming `[Be(H_(2)O)_(4)]^(2+)`. The other group 2 flourides `MF_(2)` are all insoluble.
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Knowledge Check

  • Which of the following oxides is soluble in water

    A
    `Li_(2)O`
    B
    `Na_O`
    C
    `K_(2)O`
    D
    All of these

  • Which of the following sulphides is soluble in water?

    A
    `As_(2)S_(3)`
    B
    `Sb_(2)S_(3)`
    C
    `CuFeS_(2)`
    D
    `Al_(2)S_(3)`

  • Which of the following fluoride is more soluble in water?

    A
    `BaF`
    B
    `BeF_(2)`
    C
    `MgF_(2)`
    D
    `CaF_(2)`

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