Separate: Chemistry Only
A student uses the apparatus to electrolyse an aqueous solution of copper(II) sulfate.
Which substances are formed at the negative electrode (cathode) and the positive electrode (anode)?
☐ | A | Negative electrode: hydrogen | Positive electrode: sulfur | |
☐ | B | Negative electrode: copper | Positive electrode: oxygen | |
☐ | C | Negative electrode: sulfur | Positive electrode: hydrogen | |
☐ | D | Negative electrode: oxygen | Positive electrode: copper |
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