Down's Cell is used for the electrolysis of:
Correct answer: C. Fused NaCl
- A. Aqueous NaCl
- B. Aqueous NaNO3
- C. Fused NaCl
- D. Fused NaNO3
Explanation
Option C is correct since Down's cell is used for the electrolysis of fused NaCl.Option A is incorrect since, in the Castner-Kellner process, brine (aqueous sodium chloride) is electrolyzed in a cell having two compartments. Graphite anode is in the side compartments and iron cathode in the central compartment. Option B is incorrect since Down's cell is not used for the electrolysis of aqueous NaNO3.Option D is incorrect since Down's cell is not used for the electrolysis of fused NaNO3.
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