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Production of Chemicals by Electrolysis Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Why do you have to melt sodium chloride before performing electrolysis?

Question 2 2. Which of these is an application of electroplating?

Question 3 3. How is oxygen gas produced on the international space station?

Question 4 4. What molecules does the electrolysis of water produce?

Question 5 5. What type of chemical reaction happens during electrolysis?

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Question 6 6. Which statement about energy is TRUE?

Question 7 7. Which statement about a galvanic cell is TRUE?

Question 8 8. Which statement CORRECTLY states a similarity between a galvanic cell and an electrolytic cell?

Question 9 9. A lab book shows the setup of an electrolytic cell, but the anode and cathode aren't labeled. Which statement correctly describes how to label the cathode and anode in the electrolytic cell?

Question 10 10. What type of cell is shown in the diagram?

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Question 11 11. In an oxidation-reduction reaction, oxidation occurs at the _____.

Question 12 12. Electrolysis is the decomposition of ionic compounds into their constituent elements by _____.

Question 13 13. Predict the products of the electrolysis of NaBr.

Question 14 14. Electrolysis of molten zinc chloride yields _____ at cathode.

Question 15 15. The ion which is selected for discharge at an electrode depends on a number of factors like the position of the metal in the electrochemical series and _____.

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Question 16 16. Which gas is least likely to be produced from an aluminum plant?

Question 17 17. Predict the products formed when molten calcium oxide is electrolyzed using inert electrodes.

Question 18 18. Identify the ions present in molten sodium bromide.

Question 19 19. Which equation represents the reaction that occurs at the positive electrode during electrolysis of molten magnesium chloride?

Question 20 20.

In producing sodium and chlorine from the Downs cell, calcium chloride is often added to molten sodium chloride.

Suggest a possible reason for this addition.

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Question 21 21. Which relationship is correct for Faraday's first law of electrolysis?

Question 22 22. Calculate the number of moles of electrons that are represented by 3600C of electricity.

Question 23 23. In an electrolysis, a current of 5.6A passes through an electrolyte (potassium sulfate) for 3 hours. Calculate the mass of potassium produced.

Question 24 24. Three electrolytes are connected in series and electricity is passed through them. The three electrolytes are Magnesium chloride, Zinc sulfate and Calcium nitrate. If 3g of Magnesium is obtained, calculate the mass of Zinc and calcium produced.

Question 25 25. What amount of electricity must be supplied to an electrolytic cell in order to produce 0.100Kg of Iron from Iron(III)oxide?

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Question 26 26. Electrolysis is the breaking of a compound into its constituent _____ at the cathode and _____.

Question 27 27. Oxidation means _____ of electrons, and reduction means _____ of electrons.

Question 28 28. During the electrolysis of CuCl2, which element gets deposited at the cathode and which element gets deposited at the anode?

Question 29 29. Predict the products of this reaction: Mg (s) + 2 HCl (aq) →

Question 30 30. What will be produced at the cathode during the electrolysis of NaCl?

Production of Chemicals by Electrolysis Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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