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Exam-style practice

Electrolysis answer explanations

Review worked answers and explanations for Electrolysis. Aligned to Cambridge IGCSE Chemistry.

Answer explanations

Question 21 of 22

Review the answer support, then move sideways through the set.

Paper 4 structured question: Electrolysis

Paper 4Theory (Extended)1 marks

Description

Electrolysis of Sodium Chloride

During the electrolysis of sodium chloride solution, chlorine gas is produced at the anode and hydrogen gas at the cathode. Write the ionic half-equations for the reactions occurring at both electrodes.

  1. a

    State the ionic half-equation for the reaction at the anode.

    [1]
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