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In the reaction 2Fe²⁺ + 2MnO4⁻ → 2Fe³⁺ + 2Mn²⁺, what is the oxidation state chan

Practice Questions

Q1
In the reaction 2Fe²⁺ + 2MnO4⁻ → 2Fe³⁺ + 2Mn²⁺, what is the oxidation state change for iron? (2021)
  1. +2 to +3
  2. +3 to +2
  3. 0 to +2
  4. −2 to 0

Questions & Step-by-Step Solutions

In the reaction 2Fe²⁺ + 2MnO4⁻ → 2Fe³⁺ + 2Mn²⁺, what is the oxidation state change for iron? (2021)
  • Step 1: Identify the oxidation states of iron (Fe) in the reaction.
  • Step 2: Look at the reactants: 2Fe²⁺ means iron has an oxidation state of +2.
  • Step 3: Look at the products: 2Fe³⁺ means iron has an oxidation state of +3.
  • Step 4: Determine the change in oxidation state: +2 to +3 is an increase.
  • Step 5: Conclude that since the oxidation state increased, iron is oxidized.
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