Chemistry · Oct / Nov 2021 · Paper 11 · Question 14
5070Electrolysis
Which statement about electrolysis reactions is correct?
- ABromine is formed at the anode when molten lead bromide is electrolysed.
- BPositive ions are discharged at the positive electrode.
- CSodium is formed at the cathode when aqueous sodium chloride is electrolysed.
- DSulfur dioxide is formed as a gas when dilute sulfuric acid is electrolysed.
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Correct answer: A. Bromine is formed at the anode when molten lead bromide is electrolysed.
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