Electrochemistry MCQ Quiz Exam!

20 Questions | Total Attempts: 51

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Electrochemistry MCQ Quiz Exam!

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Questions and Answers
  • 1. 
    What is the charge of the cations of group 2 elements?
    • A. 

      +1

    • B. 

      +2

    • C. 

      +3

    • D. 

      +4

  • 2. 
    What is the charge of aluminum cation?
    • A. 

      +1

    • B. 

      +2

    • C. 

      +3

    • D. 

      +4

  • 3. 
    What is the number of mole aluminum metal produced in electrolysis if 96485 C/s  of electricity is passed in 1 second?
    • A. 

      1/3 mole

    • B. 

       1/2 mole

    • C. 

      1 mole

    • D. 

       2.5 moles

  • 4. 
    What process requires electrical energy to allow a nonspontaneous chemical redox reaction to occur?
    • A. 

      Oxidation

    • B. 

      Reduction

    • C. 

      Electrolysis

    • D. 

      Combustion

  • 5. 
    Given the half-reaction, Fe3+(aq)   +   e-      →  Fe2+(aq)   , identify the type of chemical reaction
    • A. 

      Reduction

    • B. 

      Oxidation

    • C. 

      Cathodic

    • D. 

      Both reduction and oxidation

    • E. 

      None of the above

  • 6. 
    Given the galvanic cell reaction,  Cu (s) + 2Ag+ (aq) → Cu2+(aq) + 2 Ag(s)  , which is the reduced product?
    • A. 

      Cu (s)

    • B. 

      2Ag+ (aq)

    • C. 

      Cu2+(aq)

    • D. 

      2 Ag(s)

  • 7. 
    Where does oxidation half-reaction occur in a galvanic cell?
    • A. 

      Anode

    • B. 

      Cathode

    • C. 

      Salt bridge

    • D. 

      Either cathode or anode

  • 8. 
    What is the unit of the electric current defined as 1coulomb per second?
    • A. 

      1 ampere

    • B. 

      1 volt

    • C. 

      1 coulomb

    • D. 

      1 ohm

  • 9. 
    Which of these metals has the highest oxidation potential in the electrochemical series?
    • A. 

      Magnesium

    • B. 

      Aluminum

    • C. 

      Lithium

    • D. 

      Copper

  • 10. 
    If a galvanic cell is set up with Nickel as an anode, which of these can be the metal cathode? 
    • A. 

      Magnesium

    • B. 

      Zinc

    • C. 

      Copper

    • D. 

      Aluminum

  • 11. 
     What is the product of electrolysis of  molten sodium chloride at the cathode?
    • A. 

      Chlorine gas

    • B. 

      Sodium metal

    • C. 

      Water vapor

    • D. 

      Hydrogen as

  • 12. 
    What is the charge that passes through a point when one ampere of electric current flows for one second?
    • A. 

       1 coulomb

    • B. 

      1 faraday

    • C. 

      1 volt

    • D. 

      1 ohm

  • 13. 
    In the electroplating process at which metal electrode surface can aluminum deposit coming from a molten aluminum oxide?
    • A. 

      Anode

    • B. 

      Cathode

    • C. 

      Either anode or cathode

    • D. 

      Neither anode nor cathode

  • 14. 
    What is the type of electrochemical cell that produces electricity from a spontaneous chemical redox reaction?
    • A. 

      Electrolytic cell

    • B. 

      Downs cell

    • C. 

      Electroplating cell

    • D. 

      Galvanic cell

  • 15. 
    What is the unit measure for the difference in chemical potentials between two electrodes of an electrochemical cell?
    • A. 

      Volt

    • B. 

      Ohm

    • C. 

      Ampere

    • D. 

      Coulomb

  • 16. 
    What is the amount of copper metal produced when one faraday of electricity is passed through a copper sulfate solution in an electrolytic cell?
    • A. 

      2 moles

    • B. 

      1 mole

    • C. 

      1/2 mole

    • D. 

      1/4 mole

  • 17. 
    Given the electrochemical notation of a galvanic cell, Cd(s) │ Cd2+(aq)        ││  Pb2+(aq)    │ Pb(s) which is the oxidized product at one of the electrodes?
    • A. 

      Cd(s)

    • B. 

      Cd2+(aq)

    • C. 

      Pb2+(aq)

    • D. 

      Pb(s)

  • 18. 
    Which is the anode , given the electrochemical notation of a galvanic cell,  Ni(s) │ Ni2+(aq)    ││  Ag+(aq)    │ Ag (s
    • A. 

      Ni(s)

    • B. 

      Ni2+(aq)

    • C. 

      Ag+(aq)

    • D. 

      Ag (s

  • 19. 
    Which is is the anode of the galvanic cell, given the electrochemical notation. Fe (s) │Fe2+(aq)   ││ Cu2+(aq)  │Cu (s)
    • A. 

      Fe (s)

    • B. 

      Fe2+(aq)

    • C. 

      Cu2+(aq)

    • D. 

      Cu (s)

  • 20. 
    Which of the following statements is correct?
    • A. 

      Reduction occurs at the anode in both electrolytic and galvanic cell.

    • B. 

      Oxidation occurs at the cathode in both electrolytic and galvanic cell.

    • C. 

      Reduction occurs at the cathode in both electrolytic and galvanic cell

    • D. 

      Oxidation occurs at the cathode of galvanic cell only.

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