Electrolysis

15 Questions | Total Attempts: 92

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Electrolysis Quizzes & Trivia

The quiz is basic electrolysis for students who do not know much about electrolysis


Questions and Answers
  • 1. 
    What is electrolysis
  • 2. 
    Why must the electrodes be inert?
  • 3. 
    The two substances used for electrodes are _________
  • 4. 
    What is the advantage of doing electrolysis in an aqueous solution?
    • A. 

      Low temperature

    • B. 

      More reactive

  • 5. 
    What is the lightest and most abundant element in our universe? ______________
  • 6. 
    What is the most abundant compound on earth? _______________________w
  • 7. 
    What bond is commonly present in this compound?
    • A. 

      Van der Waals

    • B. 

      Hydrogen bonding

    • C. 

      Ionic

  • 8. 
    An anode attracts ______ charged ions.
  • 9. 
    What are the ions present in water?
  • 10. 
    In the electrolysis of molten sodium chloride, what is the yellow green gas formed?
    • A. 

      Chlorine gas

    • B. 

      Bromine gas

    • C. 

      Fluorine gas

  • 11. 
    When water decomposes, is hydrogen gas and oxygen gas formed?
    • A. 

      True

    • B. 

      False

  • 12. 
    During electrolysis, why does some metals want to be in a compound, whereas some wants to be an ion?
  • 13. 
    What is electroplating
  • 14. 
    What is a binary compound?
  • 15. 
    Given below are the electrode equations for the electrolysis of aqueous sodium chloride (brine) and the Ar's: H=1 and Cl=35.5:(-) electrode: 2H+(aq) + 2e- ==> H2(g)(+) electrode: 2Cl-(aq) - 2e- ==> Cl2(g)If 213g of chlorine was formed at the (+) electrode, what volume (dm3) of hydrogen is formed at the (-) electrode? (1 mole of any gas = 24dm3 at room
    • A. 

      72

    • B. 

      144

    • C. 

      36