Question

What is the total number of donor atoms present in Pentaammineaquacobalt (III) iodide?

Options

• 3

• 5

• 1

• 6

Answer 1

6

Explanation:

Pentaammineaquacobalt(III) iodide:
\[[Co(NH_3)_5(H_2O)]I_3\]
It has five ammonia molecules and one water molecule, that is, total six ligands are attached to cobalt ion. All these ligands are monodentate since each has only one donor atom. Therefore, there are six donor atoms in the complex.