Electrolysis (AQA GCSE Chemistry Combined Science): 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 does electrolysis do to ionic compounds?
What does electrolysis do to ionic compounds?
Breaks them down using electricity
When can electrolysis of an ionic compound occur?
When can electrolysis of an ionic compound occur?
When it is molten or dissolved
Why can't solid ionic compounds conduct electricity?
Why can't solid ionic compounds conduct electricity?
The ions cannot move
What is the positive electrode called in electrolysis?
What is the positive electrode called in electrolysis?
Anode
What is the negative electrode called in electrolysis?
What is the negative electrode called in electrolysis?
Cathode
Where do positive ions move during electrolysis?
Where do positive ions move during electrolysis?
To the cathode (negative electrode)
Where do negative ions move during electrolysis?
Where do negative ions move during electrolysis?
To the anode (positive electrode)
What does oxidation mean?
What does oxidation mean?
Loss of electrons
Where does oxidation happen during electrolysis?
Where does oxidation happen during electrolysis?
At the anode
What does reduction mean?
What does reduction mean?
Gain of electrons
Where does reduction happen during electrolysis?
Where does reduction happen during electrolysis?
At the cathode
In lead bromide electrolysis, what happens to ions at the cathode?
In lead bromide electrolysis, what happens to ions at the cathode?
They gain electrons and become lead atoms