In the context of redox reactions, what happens to the oxidation state of mangan

Practice Questions

Q1
In the context of redox reactions, what happens to the oxidation state of manganese in the reaction MnO4- + 8H+ + 5e- → Mn2+ + 4H2O?
  1. It increases
  2. It decreases
  3. It remains the same
  4. It fluctuates

Questions & Step-by-Step Solutions

In the context of redox reactions, what happens to the oxidation state of manganese in the reaction MnO4- + 8H+ + 5e- → Mn2+ + 4H2O?
  • Step 1: Identify the oxidation state of manganese in MnO4-. Manganese (Mn) has an oxidation state of +7 in this compound.
  • Step 2: Identify the oxidation state of manganese in Mn2+. In this compound, manganese has an oxidation state of +2.
  • Step 3: Compare the oxidation states. The oxidation state changes from +7 in MnO4- to +2 in Mn2+.
  • Step 4: Determine the change in oxidation state. The oxidation state decreases from +7 to +2, which is a decrease of 5.
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