what chemical changes take place in a dry cell used in a torch and a car battery. Both produce electricity through a chemical change. But why can a car battery be used again and again after charging while a dry cell cannot ?
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A car battery is rechargeable while the dry cell is not.
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In dry cells, a chemical reaction generates electricity. In the dry cell, oxidation reaction occurs at zinc anode to form zinc cations. Zinc atom loses two electrons to form zinc cations. ... Reduction reaction occurs at graphite cathode.
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