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Lesson Worksheet: Electrolysis of Salt Solutions Chemistry • 10th Grade

In this worksheet, we will practice predicting the products of electrolysis of aqueous salt solutions using the reactivity series.

Q1:

What products are formed from the electrolysis of dilute sodium chloride solution?

  • ASodium is produced at the cathode and chlorine at the anode.
  • BSodium is produced at the cathode and oxygen at the anode.
  • CHydrogen is produced at the cathode and chlorine at the anode.
  • DOxygen is produced at the cathode and hydrogen at the anode.
  • EHydrogen is produced at the cathode and oxygen at the anode.

Q2:

What equation shows the reaction at the cathode during the electrolysis of potassium chloride solution using inert electrodes?

  • A2H+2eH+2
  • B4OH2HO+O+4e22
  • C2ClCl+2e2
  • D2HH+2e+2
  • EKK+e+

Q3:

Three separate electrolytic cells are set up, all with inert electrodes. Cell X uses an electrolyte of aqueous zinc chloride, cell Y uses an electrolyte of molten zinc chloride, and cell Z uses an electrolyte of aqueous sodium chloride.

Which cells produce a gas at both electrodes?

  • ACell X and cell Z
  • BCell X, cell Y, and cell Z
  • COnly cell X
  • DCell X and cell Y

Q4:

What equation shows the reaction at the anode during the electrolysis of copper sulfate solution using inert electrodes?

  • ASOSO+O+2e2422
  • BCuCu+2e2+
  • CSO+O+2eSO2224
  • D4OH2HO+O+4e22
  • E2H+2eH+2

Q5:

What gas or gases are produced during the electrolysis of sulfuric acid using inert electrodes?

  • AHydrogen
  • BOxygen
  • CHydrogen and sulfur dioxide
  • DHydrogen and oxygen
  • EHydrogen, oxygen, and sulfur dioxide

Q6:

What ions are present in an aqueous solution of strontium chloride?

  • ASr2+, H+, Cl, OH
  • BSr2+, Cl, OH
  • CSr2+, H+, Cl
  • DSr2+, Cl
  • EH+, OH

Q7:

In the manufacturing of chlorine, concentrated aqueous sodium chloride is electrolyzed using inert electrodes. What caustic chemical is also produced in this process?

  • AHydrogen gas
  • BSodium oxide
  • CHydrochloric acid
  • DSodium hydroxide
  • ESodium chlorate (V)

Q8:

What products are formed from the electrolysis of concentrated sodium chloride?

  • AHydrogen is produced at the cathode and oxygen at the anode.
  • BSodium is produced at the cathode and oxygen at the anode.
  • COxygen is produced at the cathode and hydrogen at the anode.
  • DSodium is produced at the cathode and chlorine at the anode.
  • EHydrogen is produced at the cathode and chlorine at the anode.

Q9:

What name is given to the blue aqueous ionic compound in this experimental setup?

  • AElectrolyzer
  • BElectrode
  • CElectrolytic
  • DElectrolysis
  • EElectrolyte

Q10:

Which three products are formed during the electrolysis of aqueous rubidium bromide?

  • ARubidium, bromine, and water
  • BHydrogen, bromine, and rubidium hydroxide
  • CHydrogen, bromine, and water
  • DRubidium, bromine, and rubidium hydroxide
  • EHydrogen, bromide, and rubidium hydroxide

This lesson includes 34 additional questions and 13 additional question variations for subscribers.

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