Question

What is called when oxygen is added to a substance?

Answer 1

Redox reaction:

• “It is a reaction in which oxidation and reduction reaction take place simultaneously.”
• It is also known as an oxidation-reduction reaction.

Oxidation :

• When oxygen is added to a substance, it is known as an oxidation reaction.
• It can be shown by the following reaction:

$2\mathrm{Cu}\left(\mathrm{s}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\to 2\mathrm{CuO}\left(\mathrm{s}\right)$

• When oxygen $\left({\mathrm{O}}_2\right)$ is added to copper $\left(\mathrm{Cu}\right)$ it get oxidized into copper oxide $\left(\mathrm{CuO}\right)$.