Required Practical: Electrolysis of Aqueous Solutions (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
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Practise the questions
13 questions from this quiz
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Practise the questions
13 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 itself can undergo electrolysis
Which ions are produced when water partially dissociates?
Which ions are produced when water partially dissociates?
and
At the cathode, which type of ion is reduced?
At the cathode, which type of ion is reduced?
The less reactive ion
At the anode, which type of ion is oxidised?
At the anode, which type of ion is oxidised?
The ion oxidised more easily
What product forms at the cathode during electrolysis of solution?
What product forms at the cathode during electrolysis of solution?
Solid copper
Why are ions reduced at the cathode during electrolysis of solution?
Why are ions reduced at the cathode during electrolysis of solution?
Copper is less reactive than hydrogen
What product forms at the anode during electrolysis of solution?
What product forms at the anode during electrolysis of solution?
Oxygen gas
What product forms at the cathode during electrolysis of solution?
What product forms at the cathode during electrolysis of solution?
Hydrogen gas
Why are ions reduced at the cathode during electrolysis of solution?
Why are ions reduced at the cathode during electrolysis of solution?
Sodium is more reactive than hydrogen
What product forms at the anode during electrolysis of solution?
What product forms at the anode during electrolysis of solution?
Chlorine gas
Why are ions oxidised at the anode during electrolysis of solution?
Why are ions oxidised at the anode during electrolysis of solution?
They are halide ions
What happens at the anode if no halide ions are present in an aqueous solution?
What happens at the anode if no halide ions are present in an aqueous solution?
ions oxidised, producing oxygen
Which electrode is the cathode in electrolysis?
Which electrode is the cathode in electrolysis?
The negative electrode