According to the calssical concept, which of the following cannot be termed as reduction?
Removal of electropositive element
Removal of electronegative element.
The correct option is A Removal of electropositive element
The phenomenon which are termed as reduction according to the classical concept are:
Addition of Hydrogen
Removal of Oxygen
Gain of electropositive element (like Silver)
Removal of an electronegative element (like Fluorine)
Electronic concept of reduction :
Addition or gain of electrons is termed as reduction.
Here Cu2+ is reduced to Cu when it loses 2e−