Question
Download Solution PDFWhat is the negative terminal of a dry cell battery made of?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Cell:
- A cell is an electrochemical device consisting of two electrodes and an electrolyte.
- The chemical reaction between the electrodes and the electrolyte produces a voltage.
Cells are classified as:
- Dry cells
- Wet cells
Dry cells:
- A dry cell has paste or gel electrolyte.
- It is semi-sealed and could be used in any position.
- The cell consists of a zinc (connected to the negative terminal of a dry cell battery) container that also acts as an anode and the cathode is a carbon (graphite) rod surrounded by powdered manganese dioxide and carbon.
- The space between the electrodes is filled with a moist paste of ammonium chloride and zinc chloride.
Wet cells:
- It consists of two plates and a liquid electrolyte.
- These cells have vent holes to allow the gases to escape during charging and discharging.
- The most common wet cell is the lead acid cell; wet cells can be recharged for reuse.
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