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3.4 Electrolysis

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Question 9
F

Lithium hydride, LiH\mathrm{LiH}LiH, is an ionic compound. It contains Li+\mathrm{Li^{+}}Li+ ions and H−\mathrm{H^{-}}H− ions.

Molten lithium hydride is electrolysed using inert electrodes.

Which products are made?

[1]
A

Cathode: hydrogen; anode: lithium

B

Cathode: lithium; anode: hydrogen

C

Cathode: hydrogen; anode: no product

D

Cathode: lithium and hydrogen; anode: no product

Markscheme

3.4 Electrolysis Questions

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

52 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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