The Ksp of Ag2CrO4, AgCl, AgBr and Agl are respectively, 1.1 $ \times $ 10$-$12, 1.8 $ \times $ 10$-$10, 5.0 $ \times $ 10$-$13, 8.3 $ \times $ 10$-$17. Which one of the following salts will precipitate last if AgNO3 solution is added to the solution containing equal moles of NaCl, NaBr, Nal and Na2CrO4?

Question

The K_sp of Ag₂CrO₄, AgCl, AgBr and Agl are respectively, 1.1 $ \times $ 10^$-$12, 1.8 $ \times $ 10^$-$10, 5.0 $ \times $ 10^$-$13, 8.3 $ \times $ 10^$-$17. Which one of the following salts will precipitate last if AgNO₃ solution is added to the solution containing equal moles of NaCl, NaBr, Nal and Na₂CrO₄?

AgBr

Ag₂CrO₄

Agl

AgCl

Solution

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