CAIE IGCSE Chemistry 4.1.9 Products Formed At the Electrodes and Questions
Predict electrode reactions and observable changes when aqueous copper(II) sulfate is electrolysed.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Exam points
- identify electrode products in aqueous copper(II) sulfate
- distinguish inert and copper electrodes
- explain copper ion reduction at the cathode
- explain oxidation at the anode
- predict mass and solution-colour changes during electrolysis
- write electrode half-equations for copper sulfate electrolysis
CAIE IGCSE Chemistry 4.1.9 Products Formed At the Electrodes and Questions question 1
[Maximum number: 1]
Aqueous copper(II) sulfate is electrolysed using carbon electrodes.
Which statement is correct?
A
Bubbles of hydrogen gas are formed at the anode.
B
Bubbles of oxygen gas are formed at the cathode.
C
Copper is deposited at the anode.
D
The blue colour of the solution fades.
D
All question bank results loaded