Question : What is used in storage batteries?
Option 1: Copper
Option 2: Tin
Option 3: Lead
Option 4: zinc
Correct Answer: Lead
Solution : The correct option is Lead.
Lead-acid batteries have a positive electrode of lead dioxide, a negative electrode of sponge lead, and an electrolyte of diluted sulfuric acid solution. During charging and discharging, the chemical processes in a lead-acid battery include the conversion of lead and lead dioxide into lead sulphate and the reverse conversion during discharge.
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