Which of the following can be used in laptops ?
Correct answer: C. Nickel cadmium cell
- A. Silver oxide battery
- B. Fuel cell
- C. Nickel cadmium cell
- D. Lead accumulator
Explanation
Nickel-cadmium cells are rechargeable secondary cells that were commonly used in portable electronic devices, including older laptops. A student may choose a fuel cell because it can also generate electricity, but fuel cells were not the conventional rechargeable battery used in laptops.
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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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