Question

The following anions can be separated by precipitation as silver salts: Cl-, Br-, I-, CrO42-. If Ag+ is added to a solution containing the four anions, each at a concentration of 0.10 M, in what order will they precipitate?
Compound Ksp
AgCl 1.8 10-10
Ag2CrO4 1.1 10-12
AgBr 5.4 10-13
AgI 8.5 10-17
A.AgCl Ag2CrO4 AgBr AgI
B.AgI AgBr Ag2CrO4 AgCl
C.Ag2CrO4 AgCl AgBr AgI
D.Ag2CrO4 AgI AgBr AgCl
E.AgI AgBr AgCl Ag2CrO4

Answer

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