
Electrolysis and Chemical Reactions

Interactive Video
•
Chemistry, Science
•
9th - 12th Grade
•
Medium

Jackson Turner
Used 2+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of electrolysis in the context of water?
To heat water to its boiling point
To generate electricity from water
To use electricity to break down water into hydrogen and oxygen gases
To combine hydrogen and oxygen into water
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which components are necessary for setting up a basic electrolysis experiment?
A heater, a beaker, and salt
A magnet, a battery, and a light bulb
Two electrodes, a battery, and water
A beaker, water, and a thermometer
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an electrochemical cell, where does oxidation occur?
At the cathode
At the anode
In the solution
At the battery terminals
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is produced at the cathode during the electrolysis of water?
Oxygen gas
Sodium metal
Chlorine gas
Hydrogen gas
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is sodium not reduced at the cathode during electrolysis?
The cell potential for sodium reduction is unfavorable
Sodium is already in its elemental form
Sodium is too reactive to be reduced
Sodium reacts with oxygen instead
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to sodium if it were to be reduced at the cathode?
It forms sodium hydroxide
It remains as sodium metal
It reacts with water to form hydrogen gas and sodium hydroxide
It dissolves in the solution
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the overall cell potential for the electrolysis of water with a 1 molar sodium hydroxide solution?
Positive 1.23 volts
Zero volts
Negative 1.23 volts
Positive 0.83 volts
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