The value of `K_(sp)` is `HgCI_(2)` at room temperature is `4.0 xx 10^(-15)`. The concentration of `CI^(Theta)` ion in its aqueous solution at saturation point is

Options

A. `1 xx 10^(-5)`
B. `2xx10^(-5)`
C. `2xx10^(-15)`
D. `8xx10^(-15)`

Answer

B

Explanation

`{:(HgCI_(2)hArr,Hg^(2+)+,2CI^(Theta),),(,2S,2S,):}`
`K_(sp) = 4S^(3)`.
`S = root3((K_(sp))/(4)) =root3((4xx10^(-15))/(4))10^(-5)`
`:. 2S = 2 xx 10^(-5) = [CI^(Theta)]`