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Question

When Fe2+ ion changes to Fe3+ ion we are witnessing ___


A

Reduction

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B

Decomposition

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C

Oxidation

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D

Addition

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Solution

The correct option is C

Oxidation


Oxidation

Ferrous Fe2+ ion shows the loss of two electrons while Fe3+ 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, Fe2+ changes to Fe3+


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