Required Practical: Electrolysis of Aqueous Solutions (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): 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
Why is electrolysis of aqueous solutions more complex than molten ionic compounds?
Why is electrolysis of aqueous solutions more complex than molten ionic compounds?
Water can undergo electrolysis too
What ions does water produce when it dissociates?
What ions does water produce when it dissociates?
and ions
Which ions from water can react at the electrodes during electrolysis?
Which ions from water can react at the electrodes during electrolysis?
and ions
At the cathode, which ion is reduced?
At the cathode, which ion is reduced?
The less reactive ion
At the anode, which ion is oxidised?
At the anode, which ion is oxidised?
The ion oxidised more easily
What is produced at the cathode during electrolysis of solution?
What is produced at the cathode during electrolysis of solution?
Solid copper
Why is reduced at the cathode instead of in solution?
Why is reduced at the cathode instead of in solution?
Copper is less reactive than hydrogen
What gas is produced at the anode during electrolysis of solution?
What gas is produced at the anode during electrolysis of solution?
Oxygen gas
What is produced at the cathode during electrolysis of solution?
What is produced at the cathode during electrolysis of solution?
Hydrogen gas
Why is reduced at the cathode instead of in solution?
Why is reduced at the cathode instead of in solution?
Sodium is more reactive than hydrogen
What gas is produced at the anode during electrolysis of solution?
What gas is produced at the anode during electrolysis of solution?
Chlorine gas
When are ions oxidised at the anode instead of other ions?
When are ions oxidised at the anode instead of other ions?
When no halide ions are present