The Process of Electrolysis (AQA GCSE Chemistry): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is electrolysis?
What is electrolysis?
A process using electric current to split ionic compounds
What does the term 'electrolysis' mean?
What does the term 'electrolysis' mean?
Splitting using electricity
Why must ionic compounds be molten or dissolved for electrolysis?
Why must ionic compounds be molten or dissolved for electrolysis?
So ions are free to move
Why can't electrolysis occur in solid ionic compounds?
Why can't electrolysis occur in solid ionic compounds?
Ions are fixed in the crystal lattice
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 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 ions are attracted to the cathode?
Which ions are attracted to the cathode?
Positive ions
Which ions are attracted to the anode?
Which ions are attracted to the anode?
Negative ions
Why are electrodes made of inert materials?
Why are electrodes made of inert materials?
So they don't react with electrolyte
In what forms can discharged products leave the electrolyte?
In what forms can discharged products leave the electrolyte?
As solid sediments or gases