Auto Oxidation and Disproportionation Practice Test Online Quiz

1. Auto-oxidation is defined as oxidation caused by reaction with:

2. In polymers, auto-oxidation is caused by the formation of:

3. The rancidity of fats and oils at ordinary temperatures is primarily caused by:

4. Lipids are mainly spoiled by auto-oxidation due to the presence of:

5. In a disproportionation reaction, the same element undergoes:

6. The process of a disproportionation reaction involves:

7. When heated, phosphorous acid undergoes disproportionation to yield:

8. Which of the following is an example of a disproportionation reaction?

9. The oxidation numbers of chlorine in Cl₂O, Cl₂, and ClO₃⁻ are respectively:

10. What is the average oxidation state of iron in Fe₃O₄?

11. Which of the following substances can undergo both oxidation and reduction readily?

12. Which of the following compounds can act as both an oxidizing agent and a reducing agent?

13. The decomposition of KClO₃ to KCl and O₂ upon heating is an example of:

14. When 25.4 g of iodine and 14.2 g of chlorine react completely to yield a mixture of ICl and ICl₃, what is the ratio of moles of ICl to ICl₃?

15. Which of the following substances will not reduce an acidified solution of potassium dichromate (VI)?

16. Arrange the following compounds in order of decreasing average oxidation number of sulfur:

17. What is the equivalent mass of the oxidizing agent in the following reaction:
SO₂ + 2H₂S → 3S + 2H₂O?

18. What does disproportionation mean?

19. Which of the following compounds undergoes auto-oxidation under standard conditions?

20. In a disproportionation reaction, which of the following species acts as both an oxidizing agent and a reducing agent simultaneously?