6. In a dry cell (battery), which of the following are used as electrolytes?
A
Ammonium chloride and Zinc chloride
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B
Sodium chloride and Calcium chloride
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C
Magnesium chloride and Zinc chloride
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D
Ammonium chloride and Calcium chloride
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Solution
The correct option is A Ammonium chloride and Zinc chloride Dry-cell battery is zinc carbon battery which uses a cell made up of zinc as anode while cathode being carbon rod which surrounds by carbon and manganese dioxide with ammonium chloride with some zinc chloride solution as electrolyte. Heavy duty types uses a paste primarily composed of zinc chloride.