Electrolysis Essentials

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Test your electrolysis knowledge.

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لبنى عبد الكاشف

Jordan

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Froggy Jumps Electrolysis EssentialsOnline version Test your electrolysis knowledge. by لبنى عبد الكاشف 1 What does electrolysis do to water in an electrolytic cell? a Removes dissolved salts from it b Splits it into hydrogen and oxygen gas c Combines it into hydrogen peroxide 2 Which electrode is positively charged during electrolysis of water? a Cathode b Anode c Ground electrode 3 What gas is produced at the cathode when water is electrolyzed with inert electrodes? a Oxygen b Hydrogen c Chlorine 4 Which ion is reduced at the cathode in aqueous electrolysis of water? a H+ (or water to H2) b O2- c OH- 5 What is a common electrolyte used to improve water's conductivity in electrolysis? a Sulfuric acid or an acid electrolyte b Pure water without electrolyte c Sodium chloride only 6 In molten ionic compounds, what is produced at the anode during electrolysis? a Liquid metal only b Oxide or halogen depending on the compound c Hydrogen gas only 7 Which application uses electrolysis to extract reactive metals like aluminum? a Electroplating only b Electrochemical dating c Electrolytic reduction (electrolysis of alumina) 8 What is the role of electricity in electrolysis? a Drives non-spontaneous chemical reactions b Slows down spontaneous reactions c Increases solution temperature only 9 Which gas collection setup is typical for water electrolysis? a Gases mixed in a single container b Gases collected at separate electrodes c No gas collection is used 10 Why is a diaphragm or membrane often used in electrolysis cells? a To increase electrical resistance b To heat the electrolyte c To prevent product recombination and separate gases

Froggy Jumps

Electrolysis EssentialsOnline version

Test your electrolysis knowledge.

by لبنى عبد الكاشف

What does electrolysis do to water in an electrolytic cell?

Removes dissolved salts from it

Splits it into hydrogen and oxygen gas

Combines it into hydrogen peroxide

Which electrode is positively charged during electrolysis of water?

Cathode

Anode

Ground electrode

What gas is produced at the cathode when water is electrolyzed with inert electrodes?

Oxygen

Hydrogen

Chlorine

Which ion is reduced at the cathode in aqueous electrolysis of water?

H+ (or water to H2)

O2-

OH-

What is a common electrolyte used to improve water's conductivity in electrolysis?

Sulfuric acid or an acid electrolyte

Pure water without electrolyte

Sodium chloride only

In molten ionic compounds, what is produced at the anode during electrolysis?

Liquid metal only

Oxide or halogen depending on the compound

Hydrogen gas only

Which application uses electrolysis to extract reactive metals like aluminum?

Electroplating only

Electrochemical dating

Electrolytic reduction (electrolysis of alumina)

What is the role of electricity in electrolysis?

Drives non-spontaneous chemical reactions

Slows down spontaneous reactions

Increases solution temperature only

Which gas collection setup is typical for water electrolysis?

Gases mixed in a single container

Gases collected at separate electrodes

No gas collection is used

Why is a diaphragm or membrane often used in electrolysis cells?

To increase electrical resistance

To heat the electrolyte

To prevent product recombination and separate gases

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Electrolysis Essentials

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Electrolysis EssentialsOnline version

by لبنى عبد الكاشف

What does electrolysis do to water in an electrolytic cell?

Which electrode is positively charged during electrolysis of water?

What gas is produced at the cathode when water is electrolyzed with inert electrodes?

Which ion is reduced at the cathode in aqueous electrolysis of water?

What is a common electrolyte used to improve water's conductivity in electrolysis?

In molten ionic compounds, what is produced at the anode during electrolysis?

Which application uses electrolysis to extract reactive metals like aluminum?

What is the role of electricity in electrolysis?

Which gas collection setup is typical for water electrolysis?

Why is a diaphragm or membrane often used in electrolysis cells?

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