Question

The oxidation of a chemical occurs when

It loses electrons
It gains electrons
It shares electrons
All the above

Answer 1

Oxidation occurs when an atom, molecule, or ion loses one or more electrons in a chemical reaction. When oxidation occurs, the oxidation state of the chemical species increases.

Step-by-step explanation:

Answer 2

oxidation is loss of electrons

here a trick to remember this

oil rig -> oxidation is loss. reduction is gain