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Electrolysis

Electrolysis

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Question 8

An aqueous solution of copper(II) sulfate, CuSO4(aq)\text{CuSO}_4(aq)CuSO4​(aq), is electrolysed using inert carbon electrodes.

Which row correctly identifies the substance produced at the positive electrode (anode) and the negative electrode (cathode)?

A

Anode: Cu(s)\text{Cu}(s)Cu(s); Cathode: O2(g)\text{O}_2(g)O2​(g)

B

Anode: O2(g)\text{O}_2(g)O2​(g); Cathode: H2(g)\text{H}_2(g)H2​(g)

C

Anode: O2(g)\text{O}_2(g)O2​(g); Cathode: Cu(s)\text{Cu}(s)Cu(s)

D

Anode: SO2(g)\text{SO}_2(g)SO2​(g); Cathode: Cu(s)\text{Cu}(s)Cu(s)

Markscheme

Electrolysis Questions

  1. GCSE
  2. /Chemistry
  3. /Electrolysis

34 exam-style questions on OCR GCSE Chemistry Electrolysis. Each one has a worked solution and a mark scheme showing where the marks go.

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