The molar solubility ( in mol `L^(-1))` of a sparingly soluble salt `MX_(4)` is `'s'`. The corresponding solubility product `K_(sp), 's'` is given in terms of `K_(sp)` by the relation

Options

A. `S=((K_(sp))/(129))^(1//4)`
B. `S=((K_(sp))/(256))^(1//5)`
C. `S=(256 K_(sp))^(1//5)`
D. `s=(128 K_(sp))^(1//4)`

Answer

B

Explanation

`{:(MX_(4),hArr,M^(4+),+,4X^(-)),(S,,S,,4S):}`
`K_(sp)=[M^(4+)][X^(-)]^(4)=(S)(4S)^(4)=256S^(5)`
or, `S=((K_(sp))/(256))^(1//5)`