Question

(Co(NH3)5Cl)Cl oxidation number of co

Answer 1

Explanation:

Answer: Oxidation state can be found by finding the charge on the transitional metal in the complex ion, Therefore in [Co(NH3)5Cl]2+ solving [ Co + (5*0) + (-1) = +2 ] gives Co=+3. Therefore the oxidation state of Co is +3.

Answer 2

Given:

The given complex is $[Co(NH_3)_5Cl]Cl$.

To find:

The oxidation state of Co.

Solution:

The complex is $[Co(NH_3)_5Cl]Cl$.

Let the oxidation state of Co is x.

The ammonium ligands have 0 charges.

The charge of the chloride ligands is -1.

The overall charge of the complex is 0.

Hence we can write-

$x - 1 - 1 = 0 \\ x = + 2$

The value of x is +2.

Hence the oxidation number of Co is +2.