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MHT CET · Chemistry · Coordination Compounds

Which among the following is a cationic complex?

  1. A \(\mathrm{Na}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]\)
  2. B \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right] \mathrm{SO}_4\)
  3. C \(\left[\mathrm{Ni}(\mathrm{CO})_4\right]\)
  4. D \(\mathrm{K}_3\left[\mathrm{Fe}(\mathrm{CN})_6\right]\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right] \mathrm{SO}_4\)

Step-by-step Solution

Detailed explanation

\(\mathrm{Na}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]\) : Anionic \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right] \mathrm{SO}_4\) : Cationic \(\left[\mathrm{Ni}(\mathrm{CO})_4\right]\) : Neutral \(\mathrm{K}_3\left[\mathrm{Fe}(\mathrm{CN})_6\right]\) : Anionic