. Which statement accurately explains the reaction below?Fe2+(aq) + MnO4-(aq) → Fe3+(aq) + Mn2+(aq)Manganese is oxidized from a +7 oxidation state to a +2 oxidation state.Manganese is reduced from a +7 oxidation state to a +2 oxidation state.Manganese is oxidized from a +4 oxidation state to a +2 oxidation state.Manganese is reduced from a +4 oxidation state to a +2 oxidation state.
Question
. Which statement accurately explains the reaction below?Fe2+(aq) + MnO4-(aq) → Fe3+(aq) + Mn2+(aq)Manganese is oxidized from a +7 oxidation state to a +2 oxidation state.Manganese is reduced from a +7 oxidation state to a +2 oxidation state.Manganese is oxidized from a +4 oxidation state to a +2 oxidation state.Manganese is reduced from a +4 oxidation state to a +2 oxidation state.
Solution
The correct statement is: "Manganese is reduced from a +7 oxidation state to a +2 oxidation state."
Here's the step-by-step explanation:
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Identify the oxidation states of the elements in the reaction. In the given reaction, Fe2+ is in a +2 oxidation state, MnO4- is in a +7 oxidation state (since oxygen is usually -2, and there are 4 oxygen atoms, the manganese must be +7 to balance out to the -1 charge of the ion), Fe3+ is in a +3 oxidation state, and Mn2+ is in a +2 oxidation state.
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Determine the changes in oxidation states. Fe2+ increases to Fe3+, which means iron is being oxidized (it's losing electrons). MnO4- decreases to Mn2+, which means manganese is being reduced (it's gaining electrons).
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Match the changes with the correct statement. The statement that accurately explains the reaction is the one that says "Manganese is reduced from a +7 oxidation state to a +2 oxidation state." This is because in the reaction, manganese is indeed reduced (it gains electrons) and its oxidation state decreases from +7 to +2.
Similar Questions
The following reaction takes place when manganese dioxide ( ) is treated with hydrochloric acid ( ). Let's think about what is being oxidized and what is being reduced.Choose the correct statement from the following.Choose 2 answers:Choose 2 answers:(Choice A) is reduced by losing oxygen.A is reduced by losing oxygen.(Choice B) is oxidised by losing oxygen.B is oxidised by losing oxygen.(Choice C) is reduced by gaining hydrogen.C is reduced by gaining hydrogen.(Choice D) is oxidised by losing hydrogen.D is oxidised by losing hydrogen.
Determine the oxidation state of each element in Sn(MnO4)2
In a redox reaction, Mn in (+7) oxidation state is reduced to _____ oxidation state in acidic medium.
What are the oxidation numbers of manganese in the following equation?KMnO4 → K2MnO4 + MnO4 + O2*from +7 to +6 to +4 it undergoes reductionfrom 0 to +2 to +3 it undergoes oxidationfrom 0 to +5 to -4 it undergoes both oxidation and reductionfrom +6 to -4 to +7 it undergoes both oxidation and reduction
When 0.1 mol MnO2−4 is oxidised the quantity of electricity required to completely MnO2−4 to MnO4− is:
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