5. In a dry cell, which of the following is the electrolyte? a) Potassium hydroxide b) Sulphuric acid c) Ammonium chloride d) Manganese dioxide
Answer: c Explanation: In a dry cell, the electrolyte is ammonium chloride, which is applied as a moist paste close to the zinc anode. Ammonium chloride is replaced by sodium chloride in some “heavy-duty” dry cells by zinc chloride.
