Question

What is the difference between corrosion and oxidation?

Answer 1

Oxidation	Corrosion
Loss of electrons in the chemical reaction by any molecule, atom, or ion.	Corrosion is the stagnation of the upper surface when exposed to the environment due to the chemical reaction taking place on it
This is a very useful practice in laboratory practices.	This is as such not a good process for any material because this degrades the quality of the material.
In a chemical reaction, half of the reaction is occurring due to oxidation, and the other half is due to reduction.	The process is irreversible in nature.
Oxidation can occur in the presence or absence of oxygen.	This happens in the presence of air containing oxygen and moisture.
Example:$\underset{\left(\mathrm{Copper}\mathrm{oxide}\right)}{\mathrm{CuO}\left(\mathrm{s}\right)}+\underset{\left(\mathrm{Hydrogen}\right)}{{\mathrm{H}}_2\left(\mathrm{g}\right)}\to \underset{\left(\mathrm{Copper}\right)}{\mathrm{Cu}\left(\mathrm{s}\right)}+\underset{\left(\mathrm{Water}\right)}{{\mathrm{H}}_2\mathrm{O}}\left(\mathrm{l}\right)$ Here, in this reaction copper oxide$\mathbf{\left(}\mathbf{CuO}\mathbf{\right)}$ is the oxidizing agent, which oxidizes hydrogen$\mathbf{\left(}{\mathbf{H}}_{\mathbf{2}}\mathbf{\right)}$ to water molecules.	Example: Rusting of Iron is an example of corrosion that occurs in the presence of air containing oxygen and water molecules in the form of moisture. The chemical reaction occurs as follows: $\underset{(\mathrm{Ferrous}\mathrm{oxide})}{{\mathrm{Fe}}_2{\mathrm{O}}_3\left(\mathrm{s}\right)}+{\mathrm{xH}}_2\mathrm{O}\left(\mathrm{l}\right)\to \underset{\left(\mathrm{Rust}\right)}{{\mathrm{Fe}}_2{\mathrm{O}}_3.{\mathrm{xH}}_2\mathrm{O}\left(\mathrm{s}\right)}$