The Process of Electrolysis (Edexcel GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What does electrolysis use to separate an ionic compound into its constituent ions?
What does electrolysis use to separate an ionic compound into its constituent ions?
An electric current
What does the term 'electrolysis' literally mean?
What does the term 'electrolysis' literally mean?
Splitting using electricity
Why must an ionic compound be molten or dissolved for electrolysis to occur?
Why must an ionic compound be molten or dissolved for electrolysis to occur?
So the ions are free to move
What is the electrolyte in an electrolysis setup?
What is the electrolyte in an electrolysis setup?
Ionic compound with free-moving ions
Which electrode is the anode?
Which electrode is the anode?
The positive electrode
Which electrode is the cathode?
Which electrode is the cathode?
The negative electrode
What does it mean when electrodes are described as 'inert'?
What does it mean when electrodes are described as 'inert'?
They do not react with the electrolyte
What happens to positive ions at the cathode?
What happens to positive ions at the cathode?
They gain electrons (reduction)
What happens to negative ions at the anode?
What happens to negative ions at the anode?
They lose electrons (oxidation)
Which type of ions are attracted to the cathode (negative electrode)?
Which type of ions are attracted to the cathode (negative electrode)?
Positive ions
Where do electrons flow after being released at the anode?
Where do electrons flow after being released at the anode?
To the cathode via external circuit
In what forms can discharged products leave the electrolyte?
In what forms can discharged products leave the electrolyte?
Solid sediments or gases