[amp_mcq option1=”Zinc” option2=”Lead” option3=”Lead oxide” option4=”Manganese dioxide” correct=”option3″]
The correct answer is: C. Lead oxide
A lead storage battery is a type of rechargeable battery that uses lead and lead oxide as electrodes. The cathode of a lead storage battery is made up of lead oxide, which is a black powder. When the battery is charging, lead oxide is reduced to lead. When the battery is discharging, lead is oxidized to lead oxide.
The other options are incorrect:
- Zinc is not used in lead storage batteries.
- Lead is used in both the cathode and anode of a lead storage battery.
- Manganese dioxide is used in the anode of a lead storage battery.