AP EAMCET · Chemistry · Coordination Compounds
Which among the following doesn't form a white precipitate with \(\mathrm{AgNO}_3\) solution?
- A \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3\)
- B \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right] \mathrm{Cl}_2\)
- C \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right] \mathrm{Cl}_2\)
- D \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right]\)
Answer & Solution
Correct Answer
(D) \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right]\)
Step-by-step Solution
Detailed explanation
The \(\left[\mathrm{CoCl}_3\left(\mathrm{NH}_3\right)_3\right]\) complex contains elements of symmetry and is optically inactive. It does not give white precipitate with silver nitrate solution as chlorine is present in coordination sphere.
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