Physics
Grade-9
Easy
Question
Which of the following statement is true regarding a primary cell?
- Electrode reactions can be reversed
- It can be recharged
- An example of a primary cell is a nickel-cadmium storage cell
- An example of primary cell is a mercury cell
Hint:
A primary cell or battery is one that cannot be simply recharged after one usage and must be
thrown away after being discharged.
The correct answer is: An example of primary cell is a mercury cell
The Mercury cell is an example of the primary cell.
- A mercury cell is a primary cell or a primary battery that is also known as a mercury oxide battery.
- It is non-rechargeable and a non-reusable electrochemical cell.
- Leclanche cells and mercury cells are widely used primary cells.
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