Physics
Grade-9
Easy
Question
Which of these is not the correct statement of primary cell?
- It cannot be recharged
- It has a reversible chemical reaction
- Its initial cost is cheap
- Its design is smaller and cheaper
Hint:
The chemical reactions are not reversible in the case of the primary cells.
The correct answer is: It has a reversible chemical reaction
The incorrect statement among the following is "It has a reversible chemical reaction."
- The primary cells are designed as small.
- It is cheaper as its initial cost is comparatively less than the secondary cells.
- The primary cells can not be recharged. The chemical reactions in primary cells are not reversible.
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