
IGCSE Chemistry Electrolysis
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Science
9th - 10th Grade
NGSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the significance of the electrolyte in electrolysis?
It is a substance that prevents the flow of ions.
It is a substance that conducts electricity and allows the flow of ions.
It is a substance that absorbs heat during the process.
It is a substance that increases the resistance of the solution.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
In electrolysis, where does reduction take place?
At the Anode
At the Cathode
In the Electrolyte
At the Electrode
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Define electrolysis.
Electrolysis is a process that uses heat to combine elements into compounds.
Electrolysis is a chemical process that uses electricity to break down compounds into their individual elements.
Electrolysis is a method of purifying metals using chemical reactions.
Electrolysis is a technique for measuring electrical resistance in materials.
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the difference between anode and cathode?
The anode is negatively charged and attracts cations, while the cathode is positively charged and attracts anions.
The anode is positively charged and attracts anions, while the cathode is negatively charged and attracts cations.
The anode and cathode are both positively charged and attract cations.
The anode is negatively charged and does not attract any ions.
Tags
NGSS.HS-PS2-5
NGSS.HS-PS3-5
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What gas is produced at the negative electrode during the electrolysis of dilute sulfuric acid?
Oxygen
Nitrogen
Hydrogen
Carbon Dioxide
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the relationship between electrolysis and redox reactions?
Electrolysis is a process that only involves oxidation.
Electrolysis involves redox reactions where oxidation and reduction occur simultaneously.
Electrolysis is unrelated to redox reactions.
Electrolysis only involves reduction reactions.
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What gas is collected at the anode when sodium chloride solution is electrolyzed?
Oxygen gas
Hydrogen gas
Chlorine gas
Nitrogen gas
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