Solveeit Logo
Login

Question

Chemistry Question on coordination compounds

Number of ambidentate ligands among the following is ____.
NO2−,SCN−,C2O42−,NH3,CN−,SO42−,H2O\text{NO}_2^{-}, \text{SCN}^{-}, \text{C}_2\text{O}_4^{2-}, \text{NH}_3, \text{CN}^{-}, \text{SO}_4^{2-}, \text{H}_2\text{O}

Answer

Step 1: Define ambidentate ligands
Ambidentate ligands are ligands that can coordinate to a metal center through two different atoms.

Step 2: Analyze the ligands

  1. NO2−\text{NO}_2^-: Ambidentate ligand; can bind through N or O.
  2. SCN−\text{SCN}^-: Ambidentate ligand; can bind through S or N.
  3. C2O42−\text{C}_2\text{O}_4^{2-}: Not ambidentate; it is a bidentate ligand.
  4. NH3\text{NH}_3: Not ambidentate; monodentate ligand binding through N.
  5. CN−\text{CN}^-: Ambidentate ligand; can bind through C or N.
  6. SO42−\text{SO}_4^{2-}: Not ambidentate; it is a bidentate ligand.
  7. H2O\text{H}_2\text{O}: Not ambidentate; monodentate ligand binding through O.

Step 3: Count ambidentate ligands
Ambidentate ligands are:
NO2−, SCN−, CN−.\text{NO}_2^-, \, \text{SCN}^-, \, \text{CN}^-. Total number = 3.

Thus, the correct answer: 3.