The solubility of product `(K_(sp))` of AgCl is `1.8 xx 10^(-10)` . Precipitation of AgCl will occur only when equal volumes of solutions of

Options

A. `10^(-4)` M `Ag^(+)` and `10^(-4) MCl^(-)` are mixed
B. `10^(-7) M Ag^(+)` and `10^(-7) MCl^(-)` are mixed
C. `10^(-5) M Ag^(+)` and `10^(-5) MCl^(-)` are mixed
D. `10^(-10) M Ag^(+)` and `10^(-10) MCl^(-)` are mixed

Answer

A

Explanation

Precipitation occurs only when ionic product exceeds solubility product.
In case (A) ionic product
`=10^(-4) xx 10^(-4)`
`=10^(-8) gt 1.8 xx 10^(-10)`