Understanding Oxidation and Reduction Reactions in Chemistry
Learn about oxidation and reduction reactions in chemistry, including definitions, examples, oxidants, reducing agents, and the role of redox reactions. Understand the concepts of electron loss and gain during chemical reactions. Explore the significance of substances like oxygen, hydrogen peroxide, and halogens as oxidizing agents.
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Presentation Transcript
PERSENTED BY LEELAWATI PAIKRA PERSENTED BY LEELAWATI PAIKRA
DEFINITION DEFINITION When a reactant loses electron during a reaction by a When a reactant loses electron during a reaction by a molecule,atom molecule,atom or ion it is called oxidation . or ion it is called oxidation . Oxidation involves the following reactions Oxidation involves the following reactions- - 1 addition of oxygen negative part 3 removal of hydrogen 1 addition of oxygen 2 addition of electro 2 addition of electro- -negative part 3 removal of hydrogen
Examples of oxidation reaction Examples of oxidation reaction
Definition Definition When a reactant gain electron during a reaction by a When a reactant gain electron during a reaction by a molecule,atom molecule,atom or ion it is called reduction reaction. Reduction involves the following reactions or ion it is called reduction reaction. Reduction involves the following reactions- - 1 removal of oxygen negative part 3 addition of hydrogen negative part 1 removal of oxygen 2 removal of electro- -negative part 3 addition of hydrogen 4 addition of electro 2 removal of electro 4 addition of electro- -negative part
OXIDANT OXIDANT Oxidant or oxidizing agent is a substance that has the ability to oxidize other Oxidant or oxidizing agent is a substance that has the ability to oxidize other substances. substances. OR OR In other words to accept their electrons.common oxygen,hydrogen In other words to accept their electrons.common oxidizing agents are oxygen,hydrogen peroxide and the oxidizing agents are peroxide and the halogens. halogens.
A of acting either as A reductants of acting either as reductants reductants or reducing agents are capable reductants or as oxidants. or reducing agents are capable or as oxidants. OR OR A reducing agent is an element or compound that loses or donates an electron to an electron recipient in a A reducing agent is an element or compound that loses or donates an electron to an electron recipient in a redox redox chemical reaction chemical reaction . .
Oxidation redox Oxidation reduction reaction also called redox reaction .Any chemical reaction in which the oxidation number of a participating chemical species changes. Some examples of reduction reaction also called reaction .Any chemical reaction in which the oxidation number of a participating chemical species changes. Some examples of redox redox reaction reaction- -
