Silver nitrate solution is gradually added to an aqueous solution containing 0.01 M each of chloride, bromide and iodide ions. The correct sequence in which the halides will be precipitated is

The KSP values are in the order :AgCl > AgBr > AgILesser the Ksp, less is solubility and easily precipitated Down the group  hydration of ion decreases, so solubility decreases and precipitation increases