Metal And Electrolysis Test Review

20 Questions | Total Attempts: 53

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Electrolysis Quizzes & Trivia

The process of electrolysis is a technique wherein a direct electric current is utilised in order to achieve a chemical reaction that otherwise wouldn’t be expected. What can you tell us about how this process works? Take the quiz below and we’ll find out together!


Questions and Answers
  • 1. 
    What is the main reducing agent in the reduction of iron ore?
    • A. 

      Carbon monoxide

    • B. 

      Slag

    • C. 

      Carbon dioxide

    • D. 

      Oxygen

  • 2. 
    What are the main impurity in iron ore?
    • A. 

      Steel

    • B. 

      Rock

    • C. 

      Silica

    • D. 

      Limestone

  • 3. 
    What is the definition of electrolysis? 
    • A. 

      The passage of a direct electric current through a solution containing ions

    • B. 

      The use of an electric current to reduce iron ore

    • C. 

      The process used to grow hair

    • D. 

      Lightening

  • 4. 
    What is the use of limestone in reducing iron ore?
    • A. 

      Used to produce heat in blast furnace

    • B. 

      It has no use

    • C. 

      Reacts with the iron to make it explode

    • D. 

      Added to the iron ore in a blast furnace, where it reacts with silica, and separates into iron and slag

  • 5. 
    What is slag used for?
    • A. 

      Pottery

    • B. 

      Mixed with concrete to pave roads

    • C. 

      Cereal

    • D. 

      Made into utensils

  • 6. 
    Define Anion: 
    • A. 

      An ion with a positive charge that moves towards the negative electrode during electrolysis

    • B. 

      An ion with a negative charge that moves towards the positive electrode during electrolysis

    • C. 

      A positively charged electron by which electrons leave an electrical device

    • D. 

      Electrolysis is the passage of a direct electric current through a solution containing ions.

  • 7. 
    What is the charge of Potassium? 
    • A. 

      K++

    • B. 

      K-

    • C. 

      K+

    • D. 

      K--

  • 8. 
    What are the most commonly found iron ores?
    • A. 

      Hematite and Magnetite

    • B. 

      Silica and Limestone

    • C. 

      Selamite and Hepatite

    • D. 

      Hematite and Yellamite

  • 9. 
    List the diatomic elements:
    • A. 

      H, N, L, K, Cl, Fl, B

    • B. 

      H, O, C, Mg, Cl, Ag, Na

    • C. 

      H, N, O, F, Cl, I, Br

    • D. 

      M, A, D, I, S, O, N,

  • 10. 
    Define electrolyte: 
    • A. 

      A little electron

    • B. 

      A negatively charged compound

    • C. 

      A compound that in its molten or aqueous state conducts electricity

    • D. 

      A special electrode

  • 11. 
    True or False? A Cathode is a negatively charged electrode that is the source of electrons entering an electronic device.
    • A. 

      False

    • B. 

      True

  • 12. 
    What would be the product of electrolysis in the following compound:  PbBr2 (s)
    • A. 

      It remains a solid

    • B. 

      Pb (l) 2Br (g)

    • C. 

      Pb (g) Br (l)

    • D. 

      It does not react

  • 13. 
    How is Coke produced?
    • A. 

      Mixing bubbles and flavoring

    • B. 

      Heating limestone in a blast furnace

    • C. 

      In the extraction of iron ore

    • D. 

      Heating coal in the absence of air

  • 14. 
    True or false? A cation is an ion with a positive charge that moves towards the negative electrode during electrolysis. 
    • A. 

      True

    • B. 

      False

  • 15. 
    How much of the Earth's crust is made of iron?
    • A. 

      5.6%

    • B. 

      20.3%

    • C. 

      0%

    • D. 

      50.5%

  • 16. 
    What is stainless steel used for? 
    • A. 

      Phones, books

    • B. 

      Cutlery, cooking utensils, kitchen sinks

    • C. 

      Computers, tables, bridges

    • D. 

      Walls

  • 17. 
    Silica is in what state at room temperature? 
    • A. 

      Solid

    • B. 

      Liquid

    • C. 

      Gas

    • D. 

      England

  • 18. 
    What is used industrially to reduce iron ore?
    • A. 

      A fire pit

    • B. 

      A blast furnace

    • C. 

      An oven

    • D. 

      Microwave

  • 19. 
    Carbon dioxide reacts with coke to form?
    • A. 

      They don't react

    • B. 

      Silica

    • C. 

      Carbon dioxide

    • D. 

      Carbon monoxide

  • 20. 
    Did you enjoy this quiz?
    • A. 

      Yes!

    • B. 

      No.

    • C. 

      I love chemistry

    • D. 

      Sure?