Question

When ${Fe}^{2+}$ ion changes to ${Fe}^{3+}$ ion we are witnessing ___

• A. Reduction
• B. Decomposition
• C. Oxidation
• D. Addition

Answer 1

The correct option is C

Oxidation

Oxidation

Ferrous ${Fe}^{2+}$ ion shows the loss of two electrons while ${Fe}^{3+}$ ion shows the loss of three electrons. Oxidation is a process in which an atom or a group of atoms taking part in chemical reaction loses one or more electrons. The loss of electrons results in the increase of positive charge. Hence, ${Fe}^{2+}$ changes to ${Fe}^{3+}$