Oxidation Number and Rules for Assigning Oxidation Numbers

Chemistry ⇒ Redox Reactions and Electrochemistry

Oxidation Number and Rules for Assigning Oxidation Numbers starts at 10 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Oxidation Number and Rules for Assigning Oxidation Numbers. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 12

Assign the oxidation number to chlorine in Cl₂O₇.

Assign the oxidation number to each atom in the compound C₂H₅OH (ethanol).

Assign the oxidation number to each atom in the compound H₂O₂.

Assign the oxidation number to each atom in the compound HNO₂.

Assign the oxidation number to phosphorus in PO₄^3-.

Assign the oxidation number to sulfur in H₂SO₄.

Calculate the oxidation number of chromium in K₂Cr₂O₇.

Calculate the oxidation number of copper in CuSO₄.

Calculate the oxidation number of each atom in the dichromate ion, Cr₂O₇^2-.

Calculate the oxidation number of sulfur in Na₂SO₃.

Determine the oxidation number of each element in the ion MnO₄^-.

Determine the oxidation number of nitrogen in N₂O₅.

Explain why the oxidation number of oxygen in OF₂ is +2.

In the compound Fe₂O₃, what is the oxidation number of iron?

In the compound KMnO₄, what is the oxidation number of Mn?

In the compound Na₂O₂, what is the oxidation number of oxygen?

In the context of redox reactions, explain the significance of oxidation numbers.

In the ion SO₄^2-, what is the oxidation number of sulfur?

State the oxidation number of chlorine in NaClO₃.

State the oxidation number of each element in the compound NaNO₃.