Stoichiometry of all four salt is same i.e. all are of 1:1 type (i.e. 1 cation : 1 anion) Thus, in such salt, one with higher sp K has higher solubility. One with lower sp K has lower solubility and is precipitated first. For MA sp 10 2 8 K M A 1.8 10 10 A A 1.8 10 >> x x >> x This is the maximum concentration that can be soluble when 2 10M metal cation is present in the solution. For MB sp 3 2 1 K M B 4 10 10 B B 4 10 >>x x >> x Maximum concentration of B– that can be dissolved w
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