NCERT · Class 12 · Chemistry · Coordination CompoundsWhat is the coordination number of cobalt in Co(en)33+?
The coordination number of a metal ion in a coordination compound is the number of ligand donor atoms directly bonded to the metal ion. In [Co(en)3]3+, 'en' stands for ethylenediamine (ethane-1,2-diamine), which is a bidentate ligand. Since each 'en' molecule donates two donor atoms to the cobalt ion, three 'en' ligands will donate a total of 3 × 2 = 6 donor atoms. Therefore, the coordination number of cobalt is 6.
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Coordination Compounds.
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Coordination Compounds.
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Coordination Compounds.