Which one of the following is most soluble

Options

(a) Bi₂S₃ (Ksp = 1 ˣ 10⁻⁷⁰)
(b) Ag₂S (Ksp = 6 ˣ 10⁻⁵¹)
(c) CuS (Ksp = 8 ˣ 10⁻³⁷)
(d) MnS (Ksp = 7 ˣ 10⁻¹⁶)

Correct Answer:

MnS (Ksp = 7 ˣ 10⁻¹⁶)

Explanation:

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