Question

Name the complex cocl2(en)2. the oxidation number of cobalt is +2.

Answer 1

The complex is named cobalt(III) chloride. Cobalt has an oxidation number of +3, and the complex has a coordination number of six.

Step-by-step explanation:

The complex is named cobalt(III) chloride. In this complex, cobalt has an oxidation number of +3. The en ligands are neutral, while the Cl ligands have a charge of -1. The coordination number of this complex is six because it has six ligands.

Answer 2

The complex CoCl2(en)2 is named as DICHLOROBIS (ETHYLENE DIAMINE) COBALT(II) CHLORIDE.
Here the oxidation number of Cobalt metal is +3. It is a complex compound with no charge on ethylene diamine as it is neutral. The charge on the whole compound is +1.