Chemistry · May / June 2019 · Paper 11 · Question 15
5070Electrolysis
Which negative ions are present in aqueous copper(II) sulfate?
- Acopper(II) ions and hydrogen ions
- Bcopper(II) ions only
- Csulfate ions and hydroxide ions
- Dsulfate ions only
As printed in the paper
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Correct answer: C. sulfate ions and hydroxide ions
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