Question

How to identify that the complex coordination compound is oxidising agent or reducing agent?

Answer 1

A reducing agent is a substance that causes another substance to reduce. So to identify anoxidizing agent, simply look at the oxidation number of an atom before and after the reaction. If the oxidation number is greater in the product, then it lost electrons and the substance was oxidized.

Answer 2

Answer:

We can find that a complex coordination compound is an oxidising agent or reducing agent by using its electronic configuration of d-subshell.

Explanation:

Oxidising agents are those complex coordination compounds that have vacant d-orbital or it can accept electrons.

Reducing agents are those complex coordination compounds that have more than half-filled d-orbital or can donate their electrons.

For example, $\[MnO_4^ - \]$ is a strong oxidising agent.

$d^{o}$ of $Mn^{7+}$ = $\[\boxed{}\boxed{}\boxed{}\boxed{}\boxed{}\]$

The oxidation number of Manganese is +7, d-orbital of Manganese is completely vacant so it can easily accept electrons and behave as an oxidising agent.