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Redox and electrochemistry — Question 54

Original QCE Vault practice · 4 marks

Q54 · Practice questionSimple familiar4 marks

QUESTION 54 (4 marks)

Two aqueous sodium chloride solutions are electrolysed with inert electrodes. One is concentrated and one is very dilute. Use the syllabus model for preferential discharge.

a) Identify the gas produced at the cathode in both cells and write its half-equation. [2 marks]

b) Identify the principal anode gas in each cell. [2 marks]

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