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4.3 Electrolysis

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Question 11

A technician separately electrolyses magnesium nitrate solution, copper(II) nitrate solution, sodium nitrate solution and potassium nitrate solution using inert electrodes.

Which solution produces a metal coating at the negative electrode?

[1]
A

Copper(II) nitrate solution

B

Magnesium nitrate solution

C

Potassium nitrate solution

D

Sodium nitrate solution

Markscheme

4.3 Electrolysis Questions

  1. GCSE
  2. /Chemistry
  3. /4.3 Electrolysis

76 exam-style questions on AQA GCSE Chemistry 4.3 Electrolysis, covering 4.3.1a The process of electrolysis, 4.3.1b Half equations in electrolysis, 4.3.2 Electrolysis of molten ionic compounds, 4.3.3 Using electrolysis to extract metals, 4.3.4 Electrolysis of aqueous solutions, and 4.3.5 Representation of reactions at electrodes as half equations. Each one has a worked solution and a mark scheme showing where the marks go.

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