Ionic EquilibriumHard

Question

Which of the following species is more soluble in water:

Options

A.M(OH)3    (KSP = 1 × 10-35)
B.M(OH)2     (KSP = 1 × 10-30)
C.MOH    (KSP = 1 × 10-28) 
D.MOH    (KSP = 1 × 10-26)

Solution

solubility  of M(OH)3 = = 7.8 × 10-10
solubility of M (OH)2 = = 6.3 × 10-11
solubility of MOH = = 10-14

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