COMEDK · Chemistry · 24. Coordination Compounds
Which of the following statements is incorrect?
- A In \(\mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]\) the ligand has satisfied both primary and secondary valencies of ferrous ion.
- B In \(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right] \mathrm{SO}_{4}\), the ligand has satisfied only the secondary valency of copper.
- C In \(\mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]\), the ligand has satisfied only the secondary valency of ferric ion.
- D In \(\mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]\), the ligand has satisfied both primary and secondary valencies of ferric ion.
Answer & Solution
Correct Answer
(D) In \(\mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]\), the ligand has satisfied both primary and secondary valencies of ferric ion.
Step-by-step Solution
Detailed explanation
In \(\mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]\), the ligand has satisfied both primary and secondary valencies of ferric ion. The \(+3\) charge of ferric ion is satisfied by negative charge on cyanide ion. The coordination sphere's secondary valency is satisfied…
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