In a redox reaction, Mn in (+7) oxidation state is reduced to _____ oxidation state in acidic medium.
Question
In a redox reaction, Mn in (+7) oxidation state is reduced to _____ oxidation state in acidic medium.
Solution 1
In a redox reaction, Mn in (+7) oxidation state is reduced to (+2) oxidation state in acidic medium.
Here's the step by step process:
- Mn in +7 oxidation state is usually present as permanganate ion (MnO4-) in acidic medium.
- The reduction half-reaction in acidic medium is: MnO4- + 8H+ + 5e- -> Mn2+ + 4H2O
- This shows that Mn is reduced from +7 oxidation state to +2 oxidation state.
So, the answer is +2.
Solution 2
In a redox reaction, Mn in (+7) oxidation state is reduced to (+2) oxidation state in acidic medium.
Here are the steps:
-
Identify the oxidation states: Mn starts in a +7 oxidation state.
-
Identify the reduction process: Reduction is a process in which a substance gains electrons. In this case, Mn is being reduced.
-
Determine the final oxidation state: In an acidic medium, Mn is typically reduced to a +2 oxidation state.
So, Mn in (+7) oxidation state is reduced to (+2) oxidation state in acidic medium.
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