Question

What is the weakest oxidizing agent?

Answer 1

Hint: We have to remember that there are two types of reactions that take place in the reduction process which are oxidation and reduction. In the case of oxidation reaction, the electrons are removed from the substance. But in the case of the reduction process, the electrons are added to a substance. In the oxidation process, the oxygen is gained by the substance, and in the reduction process, the oxygen is lost by the substance.

Complete answer:
As we know, the oxidizing agent is also known as oxidant. And the oxidizing agent is a species which has the ability to oxidize other substances. Which means, there is an increase in the oxidation state of the species by removing the electrons. Oxygen, hydrogen peroxide and halogens are the common oxidizing agents.
Always the oxidizing agent will try to exist in its highest oxidation state due to their strong tendency to accept the electron which undergoes the reduction. If the substance has stronger electron affinity, it has the greater oxidizing power. Hence, the weakest oxidizing agent does not have a strong tendency to accept the electrons and it does not have strong electron affinity. Then the oxidizing power will become weak. Pyridinium chlorochromate, (PCC), $$(COCl{)}_2$$etc are the examples of weakest oxidizing agents. The oxidizing agents have some industrial applications like purification of water, bleaching of fabrics, used for the vulcanization of rubber etc.

Note:
We must have to know that the compound with weaker electron affinity should be a weaker oxidizing agent. Because, it does not have a high capacity to attract the electrons. . During a chemical reaction, the oxidizing agent will remove the electrons from the species. And the oxidizing agent will undergo the reduction in a redox reaction. Fluorine is an example of the strongest oxidizing agent. Because it is highly electronegative in nature.