Primary cells are used in calculators for long-service life the desirable quality of the cell is:
Correct answer: B. No self discharge rates
- A. Low energy densities
- B. No self discharge rates
- C. High self-discharge rates
- D. High energy densities
Explanation
A desirable quality of primary cells used in calculators is low or no self-discharge rates, meaning they retain their stored energy for extended periods when not in use. This allows the cell to have a long service life and reduces the need for frequent replacements.
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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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