The word oxidation means

Question

Question

This question was previously asked in

ISRO SHAR Technician B Fitter 29 April 2018 Official Paper

Answer 1

Explanation:

Originally, the term oxidation was used to describe the addition of oxygen to an element or a compound.
Because of the presence of dioxygen in the atmosphere (~20%), many elements combine with it and this is the principal reason why they commonly occur on the earth in the form of their oxides.
The following reactions represent oxidation processes according to the limited definition of oxidation:
1. 2 Mg (s) + O₂(g) → 2 MgO (s)
2. S (s) + O₂ (g) → SO₂ (g)
To summarise, the term “oxidation” is defined as the addition of oxygen /electronegative element to a substance or removal of hydrogen/ electropositive element from a substance.