Required Practical: Electrolysis of Aqueous Solutions (AQA GCSE Chemistry): Quizzes

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Required Practical: Electrolysis of Aqueous Solutions
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Why is electrolysis of aqueous solutions more complex than molten ionic compounds?

Water produces H+H^+ and OH−OH^- ions

What ions are produced when water partially dissociates?

H+H^+ and OH−OH^-

At the cathode, which type of ion is reduced?

The less reactive ion

At the anode, which type of ion is oxidised?

The ion oxidised more easily

In CuSO4CuSO_4 solution, which ion is reduced at the cathode?

Cu2+Cu^{2+}

What is produced at the cathode during electrolysis of CuSO4CuSO_4 solution?

Solid copper

In CuSO4CuSO_4 solution with no halides, which ion is oxidised at the anode?

OH−OH^-

What gas is produced at the anode during electrolysis of CuSO4CuSO_4 solution?

Oxygen

In NaClNaCl solution, which ion is reduced at the cathode?

H+H^+

What is produced at the cathode during electrolysis of NaClNaCl solution?

Hydrogen gas

In NaClNaCl solution, which ion is oxidised at the anode?

Cl−Cl^-

What is produced at the anode during electrolysis of NaClNaCl solution?

Chlorine gas

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Reactivity of Metals

Reactions of Acids

Electrolysis

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Reactivity of Metals

Reactions of Acids

Electrolysis

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Reactivity of Metals

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Electrolysis

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Reactivity of Metals

Reactions of Acids

Electrolysis

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