Question

What is the role of oxidising agent in a reaction ?

Answer 1

In chemistry, an oxidizing agent (oxidant, oxidizer) is a substance that has the ability to oxidize other substances, in other words to cause them to lose electrons. Common oxidizing agents are oxygen, hydrogen peroxide and the halogens.
In one sense, an oxidizing agent is a chemical species that undergoes a chemical reactionthat removes one or more electrons from another atom. In that sense, it is one component in an oxidation–reduction (redox) reaction. In the second sense, an oxidizing agent is a chemical species that transfers electronegative atoms, usually oxygen, to a substrate. Combustion, many explosives, and organic redox reactions involve atom-transfer reactions.
Common oxidizing agents (O-atom transfer agents)

• Oxygen (O2)
• Ozone (O3)
• Hydrogen peroxide (H2O2) and other inorganic peroxides, Fenton's reagent
• Fluorine (F2), chlorine (Cl2), and other halogens
• Nitric acid (HNO3) and nitratecompounds
• Sulfuric acid (H2SO4)
• Peroxydisulfuric acid (H2S2O8)
• Peroxymonosulfuric acid (H2SO5). Hope u do well in exams cheers!!