Question

Which of the following can act as an oxidant?
$\left( A \right)\;{H_2}{O_2}$
$\left( B \right)\;{H_2}S$
$\left( C \right)\;N{H_3}$
$\left( D \right)\;$ None of these

Answer 1

An oxidant is said to be a reactant which oxidises or removes electrons from other reactants during a redox reaction. An oxidant can also be known as an oxidizer, an oxidizing agent, oxygen atom transferring agent or even an oxygenation agent, when the oxidant includes oxygen.

Complete answer:
An oxidant is a molecule or compound which removes one or many electrons from another reactant during a chemical reaction. The oxidant is the electron acceptor, while the reducing agent is the electron donor. Some oxidants transfer electronegative atoms to a substrate while an oxidant technically doesn’t require oxygen to remove electrons,Certain oxidizing agents do contain those atoms.. Halogens are such examples of oxidants that don’t contain oxygen. Oxidants participate in combustion, organic redox reactions, and more explosives.
Examples of oxidants include:- Hydrogen peroxide, Ozone, Nitric acid, sulphuric acid, oxygen, sodium perborate, Nitrous oxide, potassium nitrate etc.
Hence, ${H_2}{O_2}$ acts as an oxidizing agent since it oxidizes other compounds by adding oxygen to them.
The correct answer is (A).

Additional Information: An oxidizing agent that can cause or aid combustion is considered as a dangerous material. Not every oxidant is hazardous in this manner. Let us say for instance- Potassium dichromate is an oxidizing agent, but is not considered as a hazardous substance in terms of transport.
Hazardous oxidizing agents are marked by a unique hazard symbol.. The symbol features a ball and flames.

Note:
In more common usage, an oxidizing agent transfers oxygen atoms to a substrate. In this context, the oxidizing agent is called an oxygenation agent.
In some cases, these oxides can also serve as electron acceptors, by the conversion of $Mn{O_4}^ -$ to $Mn{O_4}^{2 - }$