Solubility of $C a F_{2}$ is:

2 x^{2}

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x^{3}

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4 x^{3}

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x

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Solution

The correct option is C $4 x^{3}$
$C a F_{2} ⇋ C a^{2 +} + 2 F^{-}$
$x$ $2 x$

Ksp $= [C a^{2 +}] [2 F^{-}]$

$= (x) (2 x)^{2}$

$= 4 x^{3}$

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