Solubility if `M_(2)S` type salt is `3.5xx10^(-6)`, then find out its solubility product

Options

A. `1.7 xx 10^(-6)`
B. `3.4 xx 10^(-16)`
C. `1.7 xx 10^(-16)`
D. `6.8 xx 10^(-12)`

Answer

C

Explanation

`M_(2)S hArr underset(2S)(2M^(2+)) +underset(S)(S^(2-))`
`4S^(3) =K_(sp) =3.5 xx 10^(-6)`
`S=((3.5 xx 10^(-6))/(4))^(1//3) = 1.7 xx 10^(-16)`