Oxidation and Reduction
Chemistry ⇒ Redox Reactions and Electrochemistry
Oxidation and Reduction starts at 10 and continues till grade 12.
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Assign the oxidation number to chlorine in KClO4.
Assign the oxidation number to chromium in Cr2O72-.
Assign the oxidation number to nitrogen in NH4+.
Calculate the oxidation number of sulfur in Na2S2O3.
Describe the steps to balance a redox reaction using the ion-electron method.
Describe what happens to the oxidation number of an element when it is oxidized.
Explain the difference between an oxidizing agent and a reducing agent.
Explain the term 'auto-oxidation' with an example.
Explain why the reaction 2Fe3+ + 2I- → 2Fe2+ + I2 is a redox reaction.
Explain why the reaction between hydrogen and fluorine to form hydrogen fluoride is a redox reaction.
Identify the oxidizing agent in the following reaction: Zn + CuSO4 → ZnSO4 + Cu
In the reaction: 2H2O + 2Na → 2NaOH + H2, which element is oxidized?
State the change in oxidation number of chlorine in the reaction: Cl2 + 2NaBr → 2NaCl + Br2.
State the oxidation number of carbon in CO2.
State the oxidation number of chlorine in NaClO3.
Which species is reduced in the following reaction? 2Fe3+ + 2I- → 2Fe2+ + I2
