Secondary cell is_____________________?
Correct answer: A. rechargeable
- A. rechargeable
- B. non rechargeable
- C. electrolytic cell
- D. Daniel cell
Explanation
A secondary cell can be recharged because its electrode reactions are reversible, allowing electrical energy to restore the original chemical reactants. A primary cell is generally not rechargeable under normal conditions. The likely mistake is choosing non-rechargeable, which describes a primary cell rather than a secondary cell.
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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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