Which of the following is most soluble in water ?

Options

A. `MnS(K_(SP)=8xx10^(-37))`
B. `ZnS(K_(SP)=7xx10^(-16))`
C. `Bi_(2)S_(3)(K_(SP)=1xx10^(-70))`
D. `Ag_(2)S(K_(SP)=6xx10^(-51))`

Answer

B

Explanation

Find solubility for each separately by `S^(2)=K_(SP)` for MnS and ZnS.
`108S^(5)=K_(SP)"for" Bi_(2)S_(3)`
and `4S^(3)=K_(SP)"for" Ag_(2)S`.