The precipitate of `CaF_(2) (K_(sp)=1.7xx10^(-10))` is obtained when equal volumes of the following are mixed

Options

A. `10^(-4) Mca^(2)+10^(-4) MF^(-)`
B. `10^(-2)MCa^(2+)+10^(-3)MF^(-)`
C. `10^(-2)MCa^(2+)+10^(-5)MF^(-)`
D. `10^(-3) MCa^(2+)+10^(-5)MF^(-)`

Answer

B

Explanation

Only in case of B the ionic product `(Ca^(2+))(F^(-))` will exceed the `K_(sp)`