What is the oxidation number of Co in the complex Co(H₂O)₃Cl₃ A) +1 B) +2 C) +3 D) +4 E) None of the above

Question

Quizplus · Accepted Answer

To determine the oxidation number of Co, we assign a variable x to the oxidation number of S and O.

The overall charge of the complex is 0.

Therefore:

(+1) + x + 12(-1) + x + 2(-2) + (-1) + 2x + (-1) = 0

Solving for x, we get x = +3.

Therefore, the oxidation number of Co is +3.

What Is the Oxidation Number of Co in the Complex