Electrolytic Processes Quiz
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5 questions, one answer each
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1. Which electrode do positively charged ions migrate towards during electrolysis?
- A. The anode
- B. The cathode
- C. Neither electrode
- D. Both electrodes equally
2. What is produced at the anode when sodium chloride solution is electrolysed with inert electrodes?
- A. Hydrogen
- B. Sodium
- C. Chlorine
- D. Oxygen
3. What products form when molten lead bromide is electrolysed?
- A. Hydrogen and bromine
- B. Lead and oxygen
- C. Lead and bromine
- D. Lead bromide remains unchanged
4. In electrolysis, which process occurs at the cathode?
- A. Oxidation, the loss of electrons
- B. Reduction, the gain of electrons
- C. Neutralisation
- D. Sublimation
5. During the purification of copper using copper electrodes, what happens to the copper anode?
- A. It stays the same size
- B. It gets bigger as copper deposits on it
- C. It gets smaller as copper dissolves into solution
- D. It turns into oxygen gas