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3.4 Electrolysis

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Question 19
F

Hydrochloric acid, HCl(aq)\mathrm{HCl(aq)}HCl(aq), is electrolysed using inert electrodes.

Which row describes the products and the change in pH of the solution?

[1]
A

Cathode: hydrogen; anode: chlorine; pH increases

B

Cathode: hydrogen; anode: chlorine; pH decreases

C

Cathode: hydrogen; anode: oxygen; pH decreases

D

Cathode: chlorine; anode: hydrogen; pH increases

Markscheme

3.4 Electrolysis Questions

  1. GCSE
  2. /Chemistry
  3. /3.4 Electrolysis

98 exam-style questions on OCR GCSE Chemistry 3.4 Electrolysis, covering 3.4.1 Products formed at the electrodes in electrolysis and 3.4.2 The technique of electrolysis. Each one has a worked solution and a mark scheme showing where the marks go.

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