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What is a redox reaction?

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A redox (or oxidation-reduction) reaction is a type of chemical reaction that involves a transfer of electrons between two species (atom, molecule or ion). Here oxidation as well as reduction takes place simultaneously. Oxidation refers to the loss of electrons from a substance, while reduction refers... read more
A redox (or oxidation-reduction) reaction is a type of chemical reaction that involves a transfer of electrons between two species (atom, molecule or ion). Here oxidation as well as reduction takes place simultaneously. Oxidation refers to the loss of electrons from a substance, while reduction refers to the gain of electrons by a substance. These two processes cannot occur without the other. That being said, if there's a reduction reaction, there must be an oxidation reaction. Or, if there's an oxidation reaction, there must be a reduction reaction. Don't be confused by reduction being a gain, though. Adding electrons is called reduction because the overall charge is reduced - more electrons means the substance becomes more negative. The easiest way to fully understand redox reactions is to look at some examples. So let's start by looking at the reaction that forms table salt. Sodium is oxidized and loses an electron to have a +1 charge; meanwhile chlorine is reduced because it gains the electron to have a -1 charge. The redox reaction creates two ions with opposite charges that are attracted to one another and create sodium chloride, or table salt. At this point it's also important to discuss reducing and oxidizing agents. A reducing agent donates electrons or reduces another substance. So, in the case of our table salt reaction, sodium is the reducing agent. An oxidizing agent accepts electrons or oxidizes another substance. So, in the case of our table salt reaction, chlorine is the oxidizing agent. An oxidizing agent gains electrons, and an oxidizing agent is reduced. read less
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When oxidation and reduction reactions takes place simultaneously in a given chemical reaction, it is known as redox reaction. Red - reduction OX- oxidation
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Those reactions in which oxidation and reduction takes place simultaneously, are called redox reaction.
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Engineering Topper

Redox is a chemical reaction in which the oxidation states of atoms are changed. Any such reaction involves both a reduction process and a complementary oxidation process, two key concepts involved with electron transfer processes.
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Redox reaction is define as in which reaction oxidation and reduction tackle please simultaneously is called redox reaction.
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A reaction in which oxidation as well as reduction occurs which means one compound gives oxygen while the other takes oxygen.
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a reaction which ocurred both reaction at the same time oxidation and reduction takes place
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*Oxidation* is defined as the addition of oxygen to an element or compound or removal of hydrogen from a compound. *Reduction* is defined as the addition of hydrogen to an element or compound or removal of oxygen from a compound. When in a reaction oxidation and reduction occurs simultaneously, i.e.... read more
*Oxidation* is defined as the addition of oxygen to an element or compound or removal of hydrogen from a compound. *Reduction* is defined as the addition of hydrogen to an element or compound or removal of oxygen from a compound. When in a reaction oxidation and reduction occurs simultaneously, i.e. if a substance A oxidizes substance B and substance B reduces substance A by its oxidizing and reducing agent, that reaction taking place is termed as REDOX REACTION. A+B =AB read less
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When iron is exposed to moist air, slowly iron converts into a mixture of Fe O and Fe(OH) in contact of water and atmospheric oxygen know as rusting. To prevent iron from rusting by keeping it out of the contact with air and water , and also from getting converted into an alloy, the surface of iron... read more
When iron is exposed to moist air, slowly iron converts into a mixture of Fe²O³ and Fe(OH)³ in contact of water and atmospheric oxygen know as rusting. To prevent iron from rusting by keeping it out of the contact with air and water , and also from getting converted into an alloy, the surface of iron is painted. read less
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The Different Tutor

An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.
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