Redox Reactions Practice Quiz Questions And Answers

10 Questions | Total Attempts: 368

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Redox Reactions Practice Quiz Questions And Answers - Quiz

Check out the fantastic redox reactions practice quiz questions with answers. With this quiz, you'd be able to evaluate your knowledge in inorganic chemistry and chemical reactions. You must know that an oxidation-reduction (commonly known as redox) reaction involves the transfer of electrons between two chemical species. In this chemical reaction, one species undergoes oxidation, whereas another one goes in a reduction state. Do you think you can solve this test easily? If yes, take up the quiz now.


Questions and Answers
  • 1. 
    What is a reducing agent
    • A. 

      It undergoes reduction

    • B. 

      It undergoes chemical changes

    • C. 

      It undergoes oxidation

    • D. 

      It undergoes no changes

  • 2. 
    What is the oxidation number of Fe in FeO?
    • A. 

      -2

    • B. 

      2-

    • C. 

      +2

    • D. 

      2+

  • 3. 
    Balance this half equation: Cu2+ (aq) --->  Cu (s)
    • A. 

      Cu2+ (s) --->  Cu (aq)

    • B. 

      Cu2+ (aq) --->  Cu (s)  +2e

    • C. 

      Cu2+ (aq) + 2e --->  Cu (s)  

    • D. 

      Cu2+ (aq) + 3e --->  Cu (s)

  • 4. 
    Balance this half equation Cl2 (g) ---> CI- (I)
    • A. 

      Cl2 (g) ---> 2CI- + e (I)

    • B. 

      Cl2 (g) ---> 2CI- + 2e(I)

    • C. 

      Cl2 (g) + 2e ---> CI- (I)

    • D. 

      Cl2 (g) + 2e ---> 2CI- (I)

  • 5. 
    What is the oxidation number in of Phosphorus in Na3PO4Na3PO4?
    • A. 

      +5

    • B. 

      -5

    • C. 

      +4

    • D. 

      -4

  • 6. 
    How does hydrogen act as a reducing agent?
    • A. 

      By taking oxygen only

    • B. 

      By taking hydrogen only

    • C. 

      By giving electrons only

    • D. 

      By taking oxygen and giving electrons

  • 7. 
    What are electron-accepting species called?
    • A. 

      Oxidizing agents

    • B. 

      Reducing agents

    • C. 

      Electron acceptors

    • D. 

      Both a and b

  • 8. 
    Which one is not a redox reaction?
    • A. 

      H2 + Cl2 → 2HClC+O2→CO2

    • B. 

      Na2CO3 → Na2O + CO2

    • C. 

      CaCO3 → CaO + CO2

    • D. 

      2NaH → 2Na + H2

  • 9. 
    Which one of the following does not an oxidizing agent include?
    • A. 

      Potassium iodide

    • B. 

      Bromine solutions

    • C. 

      Potassium magnate

    • D. 

      Potassium dichromate

  • 10. 
    If an element is in its highest possible oxidation state in a compound. It can function as ____________.
    • A. 

      A powerful reducing agent

    • B. 

      A powerful oxidising agent

    • C. 

      A lower reducing agent

    • D. 

      None of above

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