JEE Main Chemistry question

Chemistry Equilibrium JEE Main

Which of the following is most soluble in water?

(A)Bi₂S₃ (Ksp=10⁻⁷⁰)
(B)MnS (Ksp=7×10⁻¹⁶)Correct
(C)CuS (Ksp=8×10⁻³⁷)
(D)Ag₂S (Ksp=6×10⁻⁵¹)

Answer: (B)

Solution

s(MnS)=√(7×10⁻¹⁶)≈2.65×10⁻⁸, the largest molar solubility among these.

Question ID VK-136483