Examine the following reaction: 5FeCl2(aq) + KMnO4(aq) + 8HCl(aq) → 5FeCl3(aq) + MnCl2(aq) + KCl(aq) + 4H2O(l) Which element has undergone reduction?

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Abdulazeez10 Abdulazeez10 · Answer 1 · 2022-03-29T11:33:32+02:00

The element which has undergone reduction is Manganese (Mn)

From the question, we are to determine which element has undergone reduction

First, we will define the terms oxidation and reduction

Oxidation

Oxidation can be defined as gain of oxygen. It can also be defined as an increase in oxidation state

Reduction

Reduction can be defined as loss of oxygen. It can also be defines as a decrease in oxidation state.

Now, we will determine the oxidation numbers of the elements both in the reactants and products sides

The oxidation state of Fe changed from +2 to +3. An increase in oxidation state indicates oxidation

The oxidation state of Cl did not change. It is -1 both in the reactants and products sides

The oxidation state of K did not change. It is +1 both in the reactants and products sides

The oxidation state of Mn changed from +7 to +2. A decrease in oxidation state indicates reduction.

Hence, the element which has undergone reduction is Manganese (Mn).

Learn more on Redox reaction here: https://brainly.com/question/14461330

NOTE: The oxidation states of O and H (oxygen and hydrogen) did not change.