Question

What is oxidation and Reduction ?
Define it
only by using electron.
no need to answer who does not know it.​

Answer 1

Explanation:

Loss of electron is oxidation

Gain of electron is reduction

Answer 2

Answer:

Oxidation means gaining oxygen in a chemical reaction.

In Chemistry, reduction is referred to as the loss of oxygen when it is with respect to the oxygen transfer. It is the job of the reducing agent to remove the oxygen from another substance.

Oxidation and Reduction in terms of Oxygen transfer

In early chemistry, oxidation and reduction were terms associated with oxygen.

Oxidation meant gaining oxygen and Reduction meant losing oxygen.

The term ‘reduction’ comes from Latin and means ‘-to lead back’.

Therefore, anything that leads back to the free metal state is referred to as a reduction reaction.

Magnesium undergoes both oxidation and reduction in reactions with different reactants.

Oxidation and Reduction in terms of Electron Transfer

This is the most commonly used definition of oxidation and reduction and most widely applicable.

In this case, Oxidation is the loss of electrons and Reduction is the gain of electrons.

A very clever mnemonic to remember this concept is oil rig.

Since oxidation and reduction cannot occur individually, they as a whole are called ‘Redox Reactions’. The reactant that oxidizes the other reactants is called as the Oxidizing agent and reactant that reduces is called Reducing agent. There is quite some confusion about the aspect of whether oxidizing agents accept or give away electrons.

The following steps can help you figure it out.

An oxidizing agent oxidizes the other reactants

This must mean that the oxidizing agent is getting reduced

Oxidation is the loss of electrons (OIL RIG)

So an oxidizing agent must gain electrons

Common Redox Reactions

The three common redox reactions are discussed below:

1. Combustion reaction – It is a type of redox reaction which occurs between molecular oxygen and compound to form oxygen-containing products.

2C8H18+25O2 → 16CO2(g)+18H2O

2. Disproportionation reaction – It is a type of redox reaction where a single reactant is reduced and oxidized. It is also known as an auto-oxidation reaction.

3ClO−(aq) → ClO3−(aq)+2Cl−(aq)

3. Single replacement reaction – It is a type of redox reaction that involves two elements switching places within a compound. It is also known as a single displacement reaction.

Zn(s)+2HCl(aq) → ZnCl2(aq)+H2(g)