Question

Which of the following according to classical concept can be called as oxidation?

• A. Addition of oxygen
• B. Gain of an electronegative element.
• C. Removal of hydrogen
• D. Removal of an electronegative element.

Answer 1

Answer: (A), (B), (C)

Removal of hydrogen

The phenomenon which are termed as oxidation according to classical concept are:
Addition of Oxygen.
Removal of Hydrogen.
Gain of an electronegative element (like Fluorine).
Removal of Electropositive element (like Silver).

Electronic Concept of Oxidation :
Removal or loss of electrons is termed as oxidation.
$Zn\left(s\right)⟶Z{n}^{2+}+2e^{-}$
Here $Zn$ is getting oxidised, since it loses $2e^{-}$ to form $Z{n}^{2+}$