Capacity of one lead accumulator cell is___________________?
Correct answer: B. 2 volts
- A. 1.5 volts
- B. 2 volts
- C. 3 volts
- D. 1 volts
Explanation
A single lead-acumulator cell produces about 2 volts because the lead dioxide and lead electrode reactions have a potential difference of approximately 2 V during discharge. Several cells are connected in series to obtain higher voltages, such as 12 V. The likely wrong choice is 1.5 volts, which is the nominal voltage of many other common cells.
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About Redox Reactions
Redox reactions involve oxidation and reduction occurring together, with electrons transferred between species or oxidation numbers changing. The topic covers assigning oxidation states, identifying oxidizing and reducing agents, balancing redox equations by oxidation number or half-reaction methods, and connecting chemical changes with galvanic and electrolytic cells.
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