Solubility of `CaF_(2)` in terms of its solubility product is given by :

Options

A. `s=(K_(sp))^((1)/(3))`
B. `s=((K_(sp))/(2))^((1)/(3))`
C. `s=((K_(sp))/(4))^((1)/(3))`
D. `s=((K_(sp))/(2))^((1)/(2))`

Answer

C

Explanation

`CaF_(2)hArr underset(s)(Ca^(2+))+underset(2s)(2F^(-))`
`K_(sp)=(s)(2s)^(2)`
`K_(sp)=4s^(3)`
`s=((K_(sp))/(4))^((1)/(3))`