Chemistry · May / June 2021 · Paper 12 · Question 15
5070Electrolysis
Which positive ions are present in aqueous copper(II) sulfate?
- Acopper(II) ions only
- Bcopper(II) ions and hydrogen ions
- Csulfate ions only
- Dsulfate ions and hydroxide ions
As printed in the paper
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Correct answer: B. copper(II) ions and hydrogen ions
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