In the reaction 2MnO4⁻ + 5C2O4²⁻ + 16H⁺ → 2Mn²⁺ + 10CO2 + 8H2O, which species is

Practice Questions

Q1
In the reaction 2MnO4⁻ + 5C2O4²⁻ + 16H⁺ → 2Mn²⁺ + 10CO2 + 8H2O, which species is reduced? (2019)
  1. MnO4⁻
  2. C2O4²⁻
  3. H⁺
  4. CO2

Questions & Step-by-Step Solutions

In the reaction 2MnO4⁻ + 5C2O4²⁻ + 16H⁺ → 2Mn²⁺ + 10CO2 + 8H2O, which species is reduced? (2019)
  • Step 1: Identify the reactants and products in the reaction.
  • Step 2: Look for the oxidation states of the elements in the reactants and products.
  • Step 3: Determine the oxidation state of manganese (Mn) in MnO4⁻. It is +7.
  • Step 4: Determine the oxidation state of manganese (Mn) in Mn²⁺. It is +2.
  • Step 5: Compare the oxidation states. Mn goes from +7 to +2, which means it gains electrons.
  • Step 6: Since gaining electrons indicates reduction, MnO4⁻ is the species that is reduced.
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