Question
The Ksp of Ag2CrO4 , AgCI, AgBr and Agl are respectively, 1.1x10-12 , 1.8x10-10, 5.0x 10-13 , 8.3x10-17. Which one of the following salts will precipitate last if AgNO3 solution is added to the solution containing equal moles of NaCl, NaBr, NaI and Na2CrO4