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Q. Which of the following complexes would give white precipitate with excess of $ AgNO_3 $ sol?

AMUAMU 2016

Solution:

$[CO(NH_3)_6 SO_4]Cl$ gives a white precipitate with excess of $AgNO_3$ solution. This is because, when $[CO(NH_3)_5 SO_4]Cl$ is dissolved in water, it will give chloride, $Cl$ ions in the solution. On addition of $AgNO_3$, a white precipitate of $AgCl$ is obtained.