15 electrochemistry MCQ2
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Questions and Answers

What is the purpose of an electrode in an electrochemical reaction?

  • To store electrical energy
  • To increase the surface area of the reaction
  • To decrease the voltage of the reaction
  • To facilitate the flow of electrons (correct)

    • What type of electrodes do not react with the electrolyte?

  • Non-reactive electrodes
  • Active electrodes
  • Inert electrodes (correct)
  • Metal electrodes

    • What happens to the anode during electrolysis?

  • It loses electrons (correct)
  • It increases in mass
  • It gains electrons
  • It remains unchanged

    • What is the function of the electrolyte in electrolysis?

    <p>To conduct electricity</p> Signup and view all the answers

    What is the purpose of a displacement experiment?

    <p>To demonstrate the reactivity of metals</p> Signup and view all the answers

    What is the term for the process of breaking up a substance using an electric current?

    <p>Electrolysis</p> Signup and view all the answers

    What is the term for the electrode where reduction occurs?

    <p>Cathode</p> Signup and view all the answers

    What occurs at the anode during electrolysis of aqueous sodium sulfate using universal indicator?

    <p>H ions are produced, causing the indicator to turn red</p> Signup and view all the answers

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